/* Declaration statement matcher
|
/* Declaration statement matcher
|
Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010
|
Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010
|
Free Software Foundation, Inc.
|
Free Software Foundation, Inc.
|
Contributed by Andy Vaught
|
Contributed by Andy Vaught
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
GCC is free software; you can redistribute it and/or modify it under
|
the terms of the GNU General Public License as published by the Free
|
the terms of the GNU General Public License as published by the Free
|
Software Foundation; either version 3, or (at your option) any later
|
Software Foundation; either version 3, or (at your option) any later
|
version.
|
version.
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
for more details.
|
for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
|
|
#include "config.h"
|
#include "config.h"
|
#include "system.h"
|
#include "system.h"
|
#include "gfortran.h"
|
#include "gfortran.h"
|
#include "match.h"
|
#include "match.h"
|
#include "parse.h"
|
#include "parse.h"
|
#include "flags.h"
|
#include "flags.h"
|
|
|
|
|
/* Macros to access allocate memory for gfc_data_variable,
|
/* Macros to access allocate memory for gfc_data_variable,
|
gfc_data_value and gfc_data. */
|
gfc_data_value and gfc_data. */
|
#define gfc_get_data_variable() XCNEW (gfc_data_variable)
|
#define gfc_get_data_variable() XCNEW (gfc_data_variable)
|
#define gfc_get_data_value() XCNEW (gfc_data_value)
|
#define gfc_get_data_value() XCNEW (gfc_data_value)
|
#define gfc_get_data() XCNEW (gfc_data)
|
#define gfc_get_data() XCNEW (gfc_data)
|
|
|
|
|
/* This flag is set if an old-style length selector is matched
|
/* This flag is set if an old-style length selector is matched
|
during a type-declaration statement. */
|
during a type-declaration statement. */
|
|
|
static int old_char_selector;
|
static int old_char_selector;
|
|
|
/* When variables acquire types and attributes from a declaration
|
/* When variables acquire types and attributes from a declaration
|
statement, they get them from the following static variables. The
|
statement, they get them from the following static variables. The
|
first part of a declaration sets these variables and the second
|
first part of a declaration sets these variables and the second
|
part copies these into symbol structures. */
|
part copies these into symbol structures. */
|
|
|
static gfc_typespec current_ts;
|
static gfc_typespec current_ts;
|
|
|
static symbol_attribute current_attr;
|
static symbol_attribute current_attr;
|
static gfc_array_spec *current_as;
|
static gfc_array_spec *current_as;
|
static int colon_seen;
|
static int colon_seen;
|
|
|
/* The current binding label (if any). */
|
/* The current binding label (if any). */
|
static char curr_binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
|
static char curr_binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
|
/* Need to know how many identifiers are on the current data declaration
|
/* Need to know how many identifiers are on the current data declaration
|
line in case we're given the BIND(C) attribute with a NAME= specifier. */
|
line in case we're given the BIND(C) attribute with a NAME= specifier. */
|
static int num_idents_on_line;
|
static int num_idents_on_line;
|
/* Need to know if a NAME= specifier was found during gfc_match_bind_c so we
|
/* Need to know if a NAME= specifier was found during gfc_match_bind_c so we
|
can supply a name if the curr_binding_label is nil and NAME= was not. */
|
can supply a name if the curr_binding_label is nil and NAME= was not. */
|
static int has_name_equals = 0;
|
static int has_name_equals = 0;
|
|
|
/* Initializer of the previous enumerator. */
|
/* Initializer of the previous enumerator. */
|
|
|
static gfc_expr *last_initializer;
|
static gfc_expr *last_initializer;
|
|
|
/* History of all the enumerators is maintained, so that
|
/* History of all the enumerators is maintained, so that
|
kind values of all the enumerators could be updated depending
|
kind values of all the enumerators could be updated depending
|
upon the maximum initialized value. */
|
upon the maximum initialized value. */
|
|
|
typedef struct enumerator_history
|
typedef struct enumerator_history
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_expr *initializer;
|
gfc_expr *initializer;
|
struct enumerator_history *next;
|
struct enumerator_history *next;
|
}
|
}
|
enumerator_history;
|
enumerator_history;
|
|
|
/* Header of enum history chain. */
|
/* Header of enum history chain. */
|
|
|
static enumerator_history *enum_history = NULL;
|
static enumerator_history *enum_history = NULL;
|
|
|
/* Pointer of enum history node containing largest initializer. */
|
/* Pointer of enum history node containing largest initializer. */
|
|
|
static enumerator_history *max_enum = NULL;
|
static enumerator_history *max_enum = NULL;
|
|
|
/* gfc_new_block points to the symbol of a newly matched block. */
|
/* gfc_new_block points to the symbol of a newly matched block. */
|
|
|
gfc_symbol *gfc_new_block;
|
gfc_symbol *gfc_new_block;
|
|
|
bool gfc_matching_function;
|
bool gfc_matching_function;
|
|
|
|
|
/********************* DATA statement subroutines *********************/
|
/********************* DATA statement subroutines *********************/
|
|
|
static bool in_match_data = false;
|
static bool in_match_data = false;
|
|
|
bool
|
bool
|
gfc_in_match_data (void)
|
gfc_in_match_data (void)
|
{
|
{
|
return in_match_data;
|
return in_match_data;
|
}
|
}
|
|
|
static void
|
static void
|
set_in_match_data (bool set_value)
|
set_in_match_data (bool set_value)
|
{
|
{
|
in_match_data = set_value;
|
in_match_data = set_value;
|
}
|
}
|
|
|
/* Free a gfc_data_variable structure and everything beneath it. */
|
/* Free a gfc_data_variable structure and everything beneath it. */
|
|
|
static void
|
static void
|
free_variable (gfc_data_variable *p)
|
free_variable (gfc_data_variable *p)
|
{
|
{
|
gfc_data_variable *q;
|
gfc_data_variable *q;
|
|
|
for (; p; p = q)
|
for (; p; p = q)
|
{
|
{
|
q = p->next;
|
q = p->next;
|
gfc_free_expr (p->expr);
|
gfc_free_expr (p->expr);
|
gfc_free_iterator (&p->iter, 0);
|
gfc_free_iterator (&p->iter, 0);
|
free_variable (p->list);
|
free_variable (p->list);
|
gfc_free (p);
|
gfc_free (p);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Free a gfc_data_value structure and everything beneath it. */
|
/* Free a gfc_data_value structure and everything beneath it. */
|
|
|
static void
|
static void
|
free_value (gfc_data_value *p)
|
free_value (gfc_data_value *p)
|
{
|
{
|
gfc_data_value *q;
|
gfc_data_value *q;
|
|
|
for (; p; p = q)
|
for (; p; p = q)
|
{
|
{
|
q = p->next;
|
q = p->next;
|
gfc_free_expr (p->expr);
|
gfc_free_expr (p->expr);
|
gfc_free (p);
|
gfc_free (p);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Free a list of gfc_data structures. */
|
/* Free a list of gfc_data structures. */
|
|
|
void
|
void
|
gfc_free_data (gfc_data *p)
|
gfc_free_data (gfc_data *p)
|
{
|
{
|
gfc_data *q;
|
gfc_data *q;
|
|
|
for (; p; p = q)
|
for (; p; p = q)
|
{
|
{
|
q = p->next;
|
q = p->next;
|
free_variable (p->var);
|
free_variable (p->var);
|
free_value (p->value);
|
free_value (p->value);
|
gfc_free (p);
|
gfc_free (p);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Free all data in a namespace. */
|
/* Free all data in a namespace. */
|
|
|
static void
|
static void
|
gfc_free_data_all (gfc_namespace *ns)
|
gfc_free_data_all (gfc_namespace *ns)
|
{
|
{
|
gfc_data *d;
|
gfc_data *d;
|
|
|
for (;ns->data;)
|
for (;ns->data;)
|
{
|
{
|
d = ns->data->next;
|
d = ns->data->next;
|
gfc_free (ns->data);
|
gfc_free (ns->data);
|
ns->data = d;
|
ns->data = d;
|
}
|
}
|
}
|
}
|
|
|
|
|
static match var_element (gfc_data_variable *);
|
static match var_element (gfc_data_variable *);
|
|
|
/* Match a list of variables terminated by an iterator and a right
|
/* Match a list of variables terminated by an iterator and a right
|
parenthesis. */
|
parenthesis. */
|
|
|
static match
|
static match
|
var_list (gfc_data_variable *parent)
|
var_list (gfc_data_variable *parent)
|
{
|
{
|
gfc_data_variable *tail, var;
|
gfc_data_variable *tail, var;
|
match m;
|
match m;
|
|
|
m = var_element (&var);
|
m = var_element (&var);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
tail = gfc_get_data_variable ();
|
tail = gfc_get_data_variable ();
|
*tail = var;
|
*tail = var;
|
|
|
parent->list = tail;
|
parent->list = tail;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
m = gfc_match_iterator (&parent->iter, 1);
|
m = gfc_match_iterator (&parent->iter, 1);
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
break;
|
break;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
m = var_element (&var);
|
m = var_element (&var);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
tail->next = gfc_get_data_variable ();
|
tail->next = gfc_get_data_variable ();
|
tail = tail->next;
|
tail = tail->next;
|
|
|
*tail = var;
|
*tail = var;
|
}
|
}
|
|
|
if (gfc_match_char (')') != MATCH_YES)
|
if (gfc_match_char (')') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_syntax_error (ST_DATA);
|
gfc_syntax_error (ST_DATA);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Match a single element in a data variable list, which can be a
|
/* Match a single element in a data variable list, which can be a
|
variable-iterator list. */
|
variable-iterator list. */
|
|
|
static match
|
static match
|
var_element (gfc_data_variable *new_var)
|
var_element (gfc_data_variable *new_var)
|
{
|
{
|
match m;
|
match m;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
|
|
memset (new_var, 0, sizeof (gfc_data_variable));
|
memset (new_var, 0, sizeof (gfc_data_variable));
|
|
|
if (gfc_match_char ('(') == MATCH_YES)
|
if (gfc_match_char ('(') == MATCH_YES)
|
return var_list (new_var);
|
return var_list (new_var);
|
|
|
m = gfc_match_variable (&new_var->expr, 0);
|
m = gfc_match_variable (&new_var->expr, 0);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
sym = new_var->expr->symtree->n.sym;
|
sym = new_var->expr->symtree->n.sym;
|
|
|
/* Symbol should already have an associated type. */
|
/* Symbol should already have an associated type. */
|
if (gfc_check_symbol_typed (sym, gfc_current_ns,
|
if (gfc_check_symbol_typed (sym, gfc_current_ns,
|
false, gfc_current_locus) == FAILURE)
|
false, gfc_current_locus) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (!sym->attr.function && gfc_current_ns->parent
|
if (!sym->attr.function && gfc_current_ns->parent
|
&& gfc_current_ns->parent == sym->ns)
|
&& gfc_current_ns->parent == sym->ns)
|
{
|
{
|
gfc_error ("Host associated variable '%s' may not be in the DATA "
|
gfc_error ("Host associated variable '%s' may not be in the DATA "
|
"statement at %C", sym->name);
|
"statement at %C", sym->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_current_state () != COMP_BLOCK_DATA
|
if (gfc_current_state () != COMP_BLOCK_DATA
|
&& sym->attr.in_common
|
&& sym->attr.in_common
|
&& gfc_notify_std (GFC_STD_GNU, "Extension: initialization of "
|
&& gfc_notify_std (GFC_STD_GNU, "Extension: initialization of "
|
"common block variable '%s' in DATA statement at %C",
|
"common block variable '%s' in DATA statement at %C",
|
sym->name) == FAILURE)
|
sym->name) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_data (&sym->attr, sym->name, &new_var->expr->where) == FAILURE)
|
if (gfc_add_data (&sym->attr, sym->name, &new_var->expr->where) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match the top-level list of data variables. */
|
/* Match the top-level list of data variables. */
|
|
|
static match
|
static match
|
top_var_list (gfc_data *d)
|
top_var_list (gfc_data *d)
|
{
|
{
|
gfc_data_variable var, *tail, *new_var;
|
gfc_data_variable var, *tail, *new_var;
|
match m;
|
match m;
|
|
|
tail = NULL;
|
tail = NULL;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
m = var_element (&var);
|
m = var_element (&var);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
new_var = gfc_get_data_variable ();
|
new_var = gfc_get_data_variable ();
|
*new_var = var;
|
*new_var = var;
|
|
|
if (tail == NULL)
|
if (tail == NULL)
|
d->var = new_var;
|
d->var = new_var;
|
else
|
else
|
tail->next = new_var;
|
tail->next = new_var;
|
|
|
tail = new_var;
|
tail = new_var;
|
|
|
if (gfc_match_char ('/') == MATCH_YES)
|
if (gfc_match_char ('/') == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_syntax_error (ST_DATA);
|
gfc_syntax_error (ST_DATA);
|
gfc_free_data_all (gfc_current_ns);
|
gfc_free_data_all (gfc_current_ns);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
static match
|
static match
|
match_data_constant (gfc_expr **result)
|
match_data_constant (gfc_expr **result)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_expr *expr;
|
gfc_expr *expr;
|
match m;
|
match m;
|
locus old_loc;
|
locus old_loc;
|
|
|
m = gfc_match_literal_constant (&expr, 1);
|
m = gfc_match_literal_constant (&expr, 1);
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
*result = expr;
|
*result = expr;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
m = gfc_match_null (result);
|
m = gfc_match_null (result);
|
if (m != MATCH_NO)
|
if (m != MATCH_NO)
|
return m;
|
return m;
|
|
|
old_loc = gfc_current_locus;
|
old_loc = gfc_current_locus;
|
|
|
/* Should this be a structure component, try to match it
|
/* Should this be a structure component, try to match it
|
before matching a name. */
|
before matching a name. */
|
m = gfc_match_rvalue (result);
|
m = gfc_match_rvalue (result);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
if (m == MATCH_YES && (*result)->expr_type == EXPR_STRUCTURE)
|
if (m == MATCH_YES && (*result)->expr_type == EXPR_STRUCTURE)
|
{
|
{
|
if (gfc_simplify_expr (*result, 0) == FAILURE)
|
if (gfc_simplify_expr (*result, 0) == FAILURE)
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
return m;
|
return m;
|
}
|
}
|
|
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
|
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if (gfc_find_symbol (name, NULL, 1, &sym))
|
if (gfc_find_symbol (name, NULL, 1, &sym))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (sym == NULL
|
if (sym == NULL
|
|| (sym->attr.flavor != FL_PARAMETER && sym->attr.flavor != FL_DERIVED))
|
|| (sym->attr.flavor != FL_PARAMETER && sym->attr.flavor != FL_DERIVED))
|
{
|
{
|
gfc_error ("Symbol '%s' must be a PARAMETER in DATA statement at %C",
|
gfc_error ("Symbol '%s' must be a PARAMETER in DATA statement at %C",
|
name);
|
name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (sym->attr.flavor == FL_DERIVED)
|
else if (sym->attr.flavor == FL_DERIVED)
|
return gfc_match_structure_constructor (sym, result, false);
|
return gfc_match_structure_constructor (sym, result, false);
|
|
|
/* Check to see if the value is an initialization array expression. */
|
/* Check to see if the value is an initialization array expression. */
|
if (sym->value->expr_type == EXPR_ARRAY)
|
if (sym->value->expr_type == EXPR_ARRAY)
|
{
|
{
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
|
|
m = gfc_match_init_expr (result);
|
m = gfc_match_init_expr (result);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (gfc_simplify_expr (*result, 0) == FAILURE)
|
if (gfc_simplify_expr (*result, 0) == FAILURE)
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
|
|
if ((*result)->expr_type == EXPR_CONSTANT)
|
if ((*result)->expr_type == EXPR_CONSTANT)
|
return m;
|
return m;
|
else
|
else
|
{
|
{
|
gfc_error ("Invalid initializer %s in Data statement at %C", name);
|
gfc_error ("Invalid initializer %s in Data statement at %C", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
*result = gfc_copy_expr (sym->value);
|
*result = gfc_copy_expr (sym->value);
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a list of values in a DATA statement. The leading '/' has
|
/* Match a list of values in a DATA statement. The leading '/' has
|
already been seen at this point. */
|
already been seen at this point. */
|
|
|
static match
|
static match
|
top_val_list (gfc_data *data)
|
top_val_list (gfc_data *data)
|
{
|
{
|
gfc_data_value *new_val, *tail;
|
gfc_data_value *new_val, *tail;
|
gfc_expr *expr;
|
gfc_expr *expr;
|
match m;
|
match m;
|
|
|
tail = NULL;
|
tail = NULL;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
m = match_data_constant (&expr);
|
m = match_data_constant (&expr);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
new_val = gfc_get_data_value ();
|
new_val = gfc_get_data_value ();
|
mpz_init (new_val->repeat);
|
mpz_init (new_val->repeat);
|
|
|
if (tail == NULL)
|
if (tail == NULL)
|
data->value = new_val;
|
data->value = new_val;
|
else
|
else
|
tail->next = new_val;
|
tail->next = new_val;
|
|
|
tail = new_val;
|
tail = new_val;
|
|
|
if (expr->ts.type != BT_INTEGER || gfc_match_char ('*') != MATCH_YES)
|
if (expr->ts.type != BT_INTEGER || gfc_match_char ('*') != MATCH_YES)
|
{
|
{
|
tail->expr = expr;
|
tail->expr = expr;
|
mpz_set_ui (tail->repeat, 1);
|
mpz_set_ui (tail->repeat, 1);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (expr->ts.type == BT_INTEGER)
|
if (expr->ts.type == BT_INTEGER)
|
mpz_set (tail->repeat, expr->value.integer);
|
mpz_set (tail->repeat, expr->value.integer);
|
gfc_free_expr (expr);
|
gfc_free_expr (expr);
|
|
|
m = match_data_constant (&tail->expr);
|
m = match_data_constant (&tail->expr);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_char ('/') == MATCH_YES)
|
if (gfc_match_char ('/') == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') == MATCH_NO)
|
if (gfc_match_char (',') == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_syntax_error (ST_DATA);
|
gfc_syntax_error (ST_DATA);
|
gfc_free_data_all (gfc_current_ns);
|
gfc_free_data_all (gfc_current_ns);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Matches an old style initialization. */
|
/* Matches an old style initialization. */
|
|
|
static match
|
static match
|
match_old_style_init (const char *name)
|
match_old_style_init (const char *name)
|
{
|
{
|
match m;
|
match m;
|
gfc_symtree *st;
|
gfc_symtree *st;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_data *newdata;
|
gfc_data *newdata;
|
|
|
/* Set up data structure to hold initializers. */
|
/* Set up data structure to hold initializers. */
|
gfc_find_sym_tree (name, NULL, 0, &st);
|
gfc_find_sym_tree (name, NULL, 0, &st);
|
sym = st->n.sym;
|
sym = st->n.sym;
|
|
|
newdata = gfc_get_data ();
|
newdata = gfc_get_data ();
|
newdata->var = gfc_get_data_variable ();
|
newdata->var = gfc_get_data_variable ();
|
newdata->var->expr = gfc_get_variable_expr (st);
|
newdata->var->expr = gfc_get_variable_expr (st);
|
newdata->where = gfc_current_locus;
|
newdata->where = gfc_current_locus;
|
|
|
/* Match initial value list. This also eats the terminal '/'. */
|
/* Match initial value list. This also eats the terminal '/'. */
|
m = top_val_list (newdata);
|
m = top_val_list (newdata);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_free (newdata);
|
gfc_free (newdata);
|
return m;
|
return m;
|
}
|
}
|
|
|
if (gfc_pure (NULL))
|
if (gfc_pure (NULL))
|
{
|
{
|
gfc_error ("Initialization at %C is not allowed in a PURE procedure");
|
gfc_error ("Initialization at %C is not allowed in a PURE procedure");
|
gfc_free (newdata);
|
gfc_free (newdata);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Mark the variable as having appeared in a data statement. */
|
/* Mark the variable as having appeared in a data statement. */
|
if (gfc_add_data (&sym->attr, sym->name, &sym->declared_at) == FAILURE)
|
if (gfc_add_data (&sym->attr, sym->name, &sym->declared_at) == FAILURE)
|
{
|
{
|
gfc_free (newdata);
|
gfc_free (newdata);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Chain in namespace list of DATA initializers. */
|
/* Chain in namespace list of DATA initializers. */
|
newdata->next = gfc_current_ns->data;
|
newdata->next = gfc_current_ns->data;
|
gfc_current_ns->data = newdata;
|
gfc_current_ns->data = newdata;
|
|
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match the stuff following a DATA statement. If ERROR_FLAG is set,
|
/* Match the stuff following a DATA statement. If ERROR_FLAG is set,
|
we are matching a DATA statement and are therefore issuing an error
|
we are matching a DATA statement and are therefore issuing an error
|
if we encounter something unexpected, if not, we're trying to match
|
if we encounter something unexpected, if not, we're trying to match
|
an old-style initialization expression of the form INTEGER I /2/. */
|
an old-style initialization expression of the form INTEGER I /2/. */
|
|
|
match
|
match
|
gfc_match_data (void)
|
gfc_match_data (void)
|
{
|
{
|
gfc_data *new_data;
|
gfc_data *new_data;
|
match m;
|
match m;
|
|
|
set_in_match_data (true);
|
set_in_match_data (true);
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
new_data = gfc_get_data ();
|
new_data = gfc_get_data ();
|
new_data->where = gfc_current_locus;
|
new_data->where = gfc_current_locus;
|
|
|
m = top_var_list (new_data);
|
m = top_var_list (new_data);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
m = top_val_list (new_data);
|
m = top_val_list (new_data);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
new_data->next = gfc_current_ns->data;
|
new_data->next = gfc_current_ns->data;
|
gfc_current_ns->data = new_data;
|
gfc_current_ns->data = new_data;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
|
|
gfc_match_char (','); /* Optional comma */
|
gfc_match_char (','); /* Optional comma */
|
}
|
}
|
|
|
set_in_match_data (false);
|
set_in_match_data (false);
|
|
|
if (gfc_pure (NULL))
|
if (gfc_pure (NULL))
|
{
|
{
|
gfc_error ("DATA statement at %C is not allowed in a PURE procedure");
|
gfc_error ("DATA statement at %C is not allowed in a PURE procedure");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
cleanup:
|
cleanup:
|
set_in_match_data (false);
|
set_in_match_data (false);
|
gfc_free_data (new_data);
|
gfc_free_data (new_data);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/************************ Declaration statements *********************/
|
/************************ Declaration statements *********************/
|
|
|
/* Match an intent specification. Since this can only happen after an
|
/* Match an intent specification. Since this can only happen after an
|
INTENT word, a legal intent-spec must follow. */
|
INTENT word, a legal intent-spec must follow. */
|
|
|
static sym_intent
|
static sym_intent
|
match_intent_spec (void)
|
match_intent_spec (void)
|
{
|
{
|
|
|
if (gfc_match (" ( in out )") == MATCH_YES)
|
if (gfc_match (" ( in out )") == MATCH_YES)
|
return INTENT_INOUT;
|
return INTENT_INOUT;
|
if (gfc_match (" ( in )") == MATCH_YES)
|
if (gfc_match (" ( in )") == MATCH_YES)
|
return INTENT_IN;
|
return INTENT_IN;
|
if (gfc_match (" ( out )") == MATCH_YES)
|
if (gfc_match (" ( out )") == MATCH_YES)
|
return INTENT_OUT;
|
return INTENT_OUT;
|
|
|
gfc_error ("Bad INTENT specification at %C");
|
gfc_error ("Bad INTENT specification at %C");
|
return INTENT_UNKNOWN;
|
return INTENT_UNKNOWN;
|
}
|
}
|
|
|
|
|
/* Matches a character length specification, which is either a
|
/* Matches a character length specification, which is either a
|
specification expression or a '*'. */
|
specification expression or a '*'. */
|
|
|
static match
|
static match
|
char_len_param_value (gfc_expr **expr)
|
char_len_param_value (gfc_expr **expr)
|
{
|
{
|
match m;
|
match m;
|
|
|
if (gfc_match_char ('*') == MATCH_YES)
|
if (gfc_match_char ('*') == MATCH_YES)
|
{
|
{
|
*expr = NULL;
|
*expr = NULL;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
m = gfc_match_expr (expr);
|
m = gfc_match_expr (expr);
|
|
|
if (m == MATCH_YES
|
if (m == MATCH_YES
|
&& gfc_expr_check_typed (*expr, gfc_current_ns, false) == FAILURE)
|
&& gfc_expr_check_typed (*expr, gfc_current_ns, false) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (m == MATCH_YES && (*expr)->expr_type == EXPR_FUNCTION)
|
if (m == MATCH_YES && (*expr)->expr_type == EXPR_FUNCTION)
|
{
|
{
|
if ((*expr)->value.function.actual
|
if ((*expr)->value.function.actual
|
&& (*expr)->value.function.actual->expr->symtree)
|
&& (*expr)->value.function.actual->expr->symtree)
|
{
|
{
|
gfc_expr *e;
|
gfc_expr *e;
|
e = (*expr)->value.function.actual->expr;
|
e = (*expr)->value.function.actual->expr;
|
if (e->symtree->n.sym->attr.flavor == FL_PROCEDURE
|
if (e->symtree->n.sym->attr.flavor == FL_PROCEDURE
|
&& e->expr_type == EXPR_VARIABLE)
|
&& e->expr_type == EXPR_VARIABLE)
|
{
|
{
|
if (e->symtree->n.sym->ts.type == BT_UNKNOWN)
|
if (e->symtree->n.sym->ts.type == BT_UNKNOWN)
|
goto syntax;
|
goto syntax;
|
if (e->symtree->n.sym->ts.type == BT_CHARACTER
|
if (e->symtree->n.sym->ts.type == BT_CHARACTER
|
&& e->symtree->n.sym->ts.u.cl
|
&& e->symtree->n.sym->ts.u.cl
|
&& e->symtree->n.sym->ts.u.cl->length->ts.type == BT_UNKNOWN)
|
&& e->symtree->n.sym->ts.u.cl->length->ts.type == BT_UNKNOWN)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
}
|
}
|
}
|
}
|
return m;
|
return m;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Conflict in attributes of function argument at %C");
|
gfc_error ("Conflict in attributes of function argument at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* A character length is a '*' followed by a literal integer or a
|
/* A character length is a '*' followed by a literal integer or a
|
char_len_param_value in parenthesis. */
|
char_len_param_value in parenthesis. */
|
|
|
static match
|
static match
|
match_char_length (gfc_expr **expr)
|
match_char_length (gfc_expr **expr)
|
{
|
{
|
int length;
|
int length;
|
match m;
|
match m;
|
|
|
m = gfc_match_char ('*');
|
m = gfc_match_char ('*');
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
m = gfc_match_small_literal_int (&length, NULL);
|
m = gfc_match_small_literal_int (&length, NULL);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_F95_OBS, "Obsolescent feature: "
|
if (gfc_notify_std (GFC_STD_F95_OBS, "Obsolescent feature: "
|
"Old-style character length at %C") == FAILURE)
|
"Old-style character length at %C") == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
*expr = gfc_int_expr (length);
|
*expr = gfc_int_expr (length);
|
return m;
|
return m;
|
}
|
}
|
|
|
if (gfc_match_char ('(') == MATCH_NO)
|
if (gfc_match_char ('(') == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
m = char_len_param_value (expr);
|
m = char_len_param_value (expr);
|
if (m != MATCH_YES && gfc_matching_function)
|
if (m != MATCH_YES && gfc_matching_function)
|
{
|
{
|
gfc_undo_symbols ();
|
gfc_undo_symbols ();
|
m = MATCH_YES;
|
m = MATCH_YES;
|
}
|
}
|
|
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
if (gfc_match_char (')') == MATCH_NO)
|
if (gfc_match_char (')') == MATCH_NO)
|
{
|
{
|
gfc_free_expr (*expr);
|
gfc_free_expr (*expr);
|
*expr = NULL;
|
*expr = NULL;
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in character length specification at %C");
|
gfc_error ("Syntax error in character length specification at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Special subroutine for finding a symbol. Check if the name is found
|
/* Special subroutine for finding a symbol. Check if the name is found
|
in the current name space. If not, and we're compiling a function or
|
in the current name space. If not, and we're compiling a function or
|
subroutine and the parent compilation unit is an interface, then check
|
subroutine and the parent compilation unit is an interface, then check
|
to see if the name we've been given is the name of the interface
|
to see if the name we've been given is the name of the interface
|
(located in another namespace). */
|
(located in another namespace). */
|
|
|
static int
|
static int
|
find_special (const char *name, gfc_symbol **result, bool allow_subroutine)
|
find_special (const char *name, gfc_symbol **result, bool allow_subroutine)
|
{
|
{
|
gfc_state_data *s;
|
gfc_state_data *s;
|
gfc_symtree *st;
|
gfc_symtree *st;
|
int i;
|
int i;
|
|
|
i = gfc_get_sym_tree (name, NULL, &st, allow_subroutine);
|
i = gfc_get_sym_tree (name, NULL, &st, allow_subroutine);
|
if (i == 0)
|
if (i == 0)
|
{
|
{
|
*result = st ? st->n.sym : NULL;
|
*result = st ? st->n.sym : NULL;
|
goto end;
|
goto end;
|
}
|
}
|
|
|
if (gfc_current_state () != COMP_SUBROUTINE
|
if (gfc_current_state () != COMP_SUBROUTINE
|
&& gfc_current_state () != COMP_FUNCTION)
|
&& gfc_current_state () != COMP_FUNCTION)
|
goto end;
|
goto end;
|
|
|
s = gfc_state_stack->previous;
|
s = gfc_state_stack->previous;
|
if (s == NULL)
|
if (s == NULL)
|
goto end;
|
goto end;
|
|
|
if (s->state != COMP_INTERFACE)
|
if (s->state != COMP_INTERFACE)
|
goto end;
|
goto end;
|
if (s->sym == NULL)
|
if (s->sym == NULL)
|
goto end; /* Nameless interface. */
|
goto end; /* Nameless interface. */
|
|
|
if (strcmp (name, s->sym->name) == 0)
|
if (strcmp (name, s->sym->name) == 0)
|
{
|
{
|
*result = s->sym;
|
*result = s->sym;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
end:
|
end:
|
return i;
|
return i;
|
}
|
}
|
|
|
|
|
/* Special subroutine for getting a symbol node associated with a
|
/* Special subroutine for getting a symbol node associated with a
|
procedure name, used in SUBROUTINE and FUNCTION statements. The
|
procedure name, used in SUBROUTINE and FUNCTION statements. The
|
symbol is created in the parent using with symtree node in the
|
symbol is created in the parent using with symtree node in the
|
child unit pointing to the symbol. If the current namespace has no
|
child unit pointing to the symbol. If the current namespace has no
|
parent, then the symbol is just created in the current unit. */
|
parent, then the symbol is just created in the current unit. */
|
|
|
static int
|
static int
|
get_proc_name (const char *name, gfc_symbol **result, bool module_fcn_entry)
|
get_proc_name (const char *name, gfc_symbol **result, bool module_fcn_entry)
|
{
|
{
|
gfc_symtree *st;
|
gfc_symtree *st;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
int rc = 0;
|
int rc = 0;
|
|
|
/* Module functions have to be left in their own namespace because
|
/* Module functions have to be left in their own namespace because
|
they have potentially (almost certainly!) already been referenced.
|
they have potentially (almost certainly!) already been referenced.
|
In this sense, they are rather like external functions. This is
|
In this sense, they are rather like external functions. This is
|
fixed up in resolve.c(resolve_entries), where the symbol name-
|
fixed up in resolve.c(resolve_entries), where the symbol name-
|
space is set to point to the master function, so that the fake
|
space is set to point to the master function, so that the fake
|
result mechanism can work. */
|
result mechanism can work. */
|
if (module_fcn_entry)
|
if (module_fcn_entry)
|
{
|
{
|
/* Present if entry is declared to be a module procedure. */
|
/* Present if entry is declared to be a module procedure. */
|
rc = gfc_find_symbol (name, gfc_current_ns->parent, 0, result);
|
rc = gfc_find_symbol (name, gfc_current_ns->parent, 0, result);
|
|
|
if (*result == NULL)
|
if (*result == NULL)
|
rc = gfc_get_symbol (name, NULL, result);
|
rc = gfc_get_symbol (name, NULL, result);
|
else if (!gfc_get_symbol (name, NULL, &sym) && sym
|
else if (!gfc_get_symbol (name, NULL, &sym) && sym
|
&& (*result)->ts.type == BT_UNKNOWN
|
&& (*result)->ts.type == BT_UNKNOWN
|
&& sym->attr.flavor == FL_UNKNOWN)
|
&& sym->attr.flavor == FL_UNKNOWN)
|
/* Pick up the typespec for the entry, if declared in the function
|
/* Pick up the typespec for the entry, if declared in the function
|
body. Note that this symbol is FL_UNKNOWN because it will
|
body. Note that this symbol is FL_UNKNOWN because it will
|
only have appeared in a type declaration. The local symtree
|
only have appeared in a type declaration. The local symtree
|
is set to point to the module symbol and a unique symtree
|
is set to point to the module symbol and a unique symtree
|
to the local version. This latter ensures a correct clearing
|
to the local version. This latter ensures a correct clearing
|
of the symbols. */
|
of the symbols. */
|
{
|
{
|
/* If the ENTRY proceeds its specification, we need to ensure
|
/* If the ENTRY proceeds its specification, we need to ensure
|
that this does not raise a "has no IMPLICIT type" error. */
|
that this does not raise a "has no IMPLICIT type" error. */
|
if (sym->ts.type == BT_UNKNOWN)
|
if (sym->ts.type == BT_UNKNOWN)
|
sym->attr.untyped = 1;
|
sym->attr.untyped = 1;
|
|
|
(*result)->ts = sym->ts;
|
(*result)->ts = sym->ts;
|
|
|
/* Put the symbol in the procedure namespace so that, should
|
/* Put the symbol in the procedure namespace so that, should
|
the ENTRY precede its specification, the specification
|
the ENTRY precede its specification, the specification
|
can be applied. */
|
can be applied. */
|
(*result)->ns = gfc_current_ns;
|
(*result)->ns = gfc_current_ns;
|
|
|
gfc_find_sym_tree (name, gfc_current_ns, 0, &st);
|
gfc_find_sym_tree (name, gfc_current_ns, 0, &st);
|
st->n.sym = *result;
|
st->n.sym = *result;
|
st = gfc_get_unique_symtree (gfc_current_ns);
|
st = gfc_get_unique_symtree (gfc_current_ns);
|
st->n.sym = sym;
|
st->n.sym = sym;
|
}
|
}
|
}
|
}
|
else
|
else
|
rc = gfc_get_symbol (name, gfc_current_ns->parent, result);
|
rc = gfc_get_symbol (name, gfc_current_ns->parent, result);
|
|
|
if (rc)
|
if (rc)
|
return rc;
|
return rc;
|
|
|
sym = *result;
|
sym = *result;
|
gfc_current_ns->refs++;
|
gfc_current_ns->refs++;
|
|
|
if (sym && !sym->gfc_new && gfc_current_state () != COMP_INTERFACE)
|
if (sym && !sym->gfc_new && gfc_current_state () != COMP_INTERFACE)
|
{
|
{
|
/* Trap another encompassed procedure with the same name. All
|
/* Trap another encompassed procedure with the same name. All
|
these conditions are necessary to avoid picking up an entry
|
these conditions are necessary to avoid picking up an entry
|
whose name clashes with that of the encompassing procedure;
|
whose name clashes with that of the encompassing procedure;
|
this is handled using gsymbols to register unique,globally
|
this is handled using gsymbols to register unique,globally
|
accessible names. */
|
accessible names. */
|
if (sym->attr.flavor != 0
|
if (sym->attr.flavor != 0
|
&& sym->attr.proc != 0
|
&& sym->attr.proc != 0
|
&& (sym->attr.subroutine || sym->attr.function)
|
&& (sym->attr.subroutine || sym->attr.function)
|
&& sym->attr.if_source != IFSRC_UNKNOWN)
|
&& sym->attr.if_source != IFSRC_UNKNOWN)
|
gfc_error_now ("Procedure '%s' at %C is already defined at %L",
|
gfc_error_now ("Procedure '%s' at %C is already defined at %L",
|
name, &sym->declared_at);
|
name, &sym->declared_at);
|
|
|
/* Trap a procedure with a name the same as interface in the
|
/* Trap a procedure with a name the same as interface in the
|
encompassing scope. */
|
encompassing scope. */
|
if (sym->attr.generic != 0
|
if (sym->attr.generic != 0
|
&& (sym->attr.subroutine || sym->attr.function)
|
&& (sym->attr.subroutine || sym->attr.function)
|
&& !sym->attr.mod_proc)
|
&& !sym->attr.mod_proc)
|
gfc_error_now ("Name '%s' at %C is already defined"
|
gfc_error_now ("Name '%s' at %C is already defined"
|
" as a generic interface at %L",
|
" as a generic interface at %L",
|
name, &sym->declared_at);
|
name, &sym->declared_at);
|
|
|
/* Trap declarations of attributes in encompassing scope. The
|
/* Trap declarations of attributes in encompassing scope. The
|
signature for this is that ts.kind is set. Legitimate
|
signature for this is that ts.kind is set. Legitimate
|
references only set ts.type. */
|
references only set ts.type. */
|
if (sym->ts.kind != 0
|
if (sym->ts.kind != 0
|
&& !sym->attr.implicit_type
|
&& !sym->attr.implicit_type
|
&& sym->attr.proc == 0
|
&& sym->attr.proc == 0
|
&& gfc_current_ns->parent != NULL
|
&& gfc_current_ns->parent != NULL
|
&& sym->attr.access == 0
|
&& sym->attr.access == 0
|
&& !module_fcn_entry)
|
&& !module_fcn_entry)
|
gfc_error_now ("Procedure '%s' at %C has an explicit interface "
|
gfc_error_now ("Procedure '%s' at %C has an explicit interface "
|
"and must not have attributes declared at %L",
|
"and must not have attributes declared at %L",
|
name, &sym->declared_at);
|
name, &sym->declared_at);
|
}
|
}
|
|
|
if (gfc_current_ns->parent == NULL || *result == NULL)
|
if (gfc_current_ns->parent == NULL || *result == NULL)
|
return rc;
|
return rc;
|
|
|
/* Module function entries will already have a symtree in
|
/* Module function entries will already have a symtree in
|
the current namespace but will need one at module level. */
|
the current namespace but will need one at module level. */
|
if (module_fcn_entry)
|
if (module_fcn_entry)
|
{
|
{
|
/* Present if entry is declared to be a module procedure. */
|
/* Present if entry is declared to be a module procedure. */
|
rc = gfc_find_sym_tree (name, gfc_current_ns->parent, 0, &st);
|
rc = gfc_find_sym_tree (name, gfc_current_ns->parent, 0, &st);
|
if (st == NULL)
|
if (st == NULL)
|
st = gfc_new_symtree (&gfc_current_ns->parent->sym_root, name);
|
st = gfc_new_symtree (&gfc_current_ns->parent->sym_root, name);
|
}
|
}
|
else
|
else
|
st = gfc_new_symtree (&gfc_current_ns->sym_root, name);
|
st = gfc_new_symtree (&gfc_current_ns->sym_root, name);
|
|
|
st->n.sym = sym;
|
st->n.sym = sym;
|
sym->refs++;
|
sym->refs++;
|
|
|
/* See if the procedure should be a module procedure. */
|
/* See if the procedure should be a module procedure. */
|
|
|
if (((sym->ns->proc_name != NULL
|
if (((sym->ns->proc_name != NULL
|
&& sym->ns->proc_name->attr.flavor == FL_MODULE
|
&& sym->ns->proc_name->attr.flavor == FL_MODULE
|
&& sym->attr.proc != PROC_MODULE)
|
&& sym->attr.proc != PROC_MODULE)
|
|| (module_fcn_entry && sym->attr.proc != PROC_MODULE))
|
|| (module_fcn_entry && sym->attr.proc != PROC_MODULE))
|
&& gfc_add_procedure (&sym->attr, PROC_MODULE,
|
&& gfc_add_procedure (&sym->attr, PROC_MODULE,
|
sym->name, NULL) == FAILURE)
|
sym->name, NULL) == FAILURE)
|
rc = 2;
|
rc = 2;
|
|
|
return rc;
|
return rc;
|
}
|
}
|
|
|
|
|
/* Verify that the given symbol representing a parameter is C
|
/* Verify that the given symbol representing a parameter is C
|
interoperable, by checking to see if it was marked as such after
|
interoperable, by checking to see if it was marked as such after
|
its declaration. If the given symbol is not interoperable, a
|
its declaration. If the given symbol is not interoperable, a
|
warning is reported, thus removing the need to return the status to
|
warning is reported, thus removing the need to return the status to
|
the calling function. The standard does not require the user use
|
the calling function. The standard does not require the user use
|
one of the iso_c_binding named constants to declare an
|
one of the iso_c_binding named constants to declare an
|
interoperable parameter, but we can't be sure if the param is C
|
interoperable parameter, but we can't be sure if the param is C
|
interop or not if the user doesn't. For example, integer(4) may be
|
interop or not if the user doesn't. For example, integer(4) may be
|
legal Fortran, but doesn't have meaning in C. It may interop with
|
legal Fortran, but doesn't have meaning in C. It may interop with
|
a number of the C types, which causes a problem because the
|
a number of the C types, which causes a problem because the
|
compiler can't know which one. This code is almost certainly not
|
compiler can't know which one. This code is almost certainly not
|
portable, and the user will get what they deserve if the C type
|
portable, and the user will get what they deserve if the C type
|
across platforms isn't always interoperable with integer(4). If
|
across platforms isn't always interoperable with integer(4). If
|
the user had used something like integer(c_int) or integer(c_long),
|
the user had used something like integer(c_int) or integer(c_long),
|
the compiler could have automatically handled the varying sizes
|
the compiler could have automatically handled the varying sizes
|
across platforms. */
|
across platforms. */
|
|
|
gfc_try
|
gfc_try
|
verify_c_interop_param (gfc_symbol *sym)
|
verify_c_interop_param (gfc_symbol *sym)
|
{
|
{
|
int is_c_interop = 0;
|
int is_c_interop = 0;
|
gfc_try retval = SUCCESS;
|
gfc_try retval = SUCCESS;
|
|
|
/* We check implicitly typed variables in symbol.c:gfc_set_default_type().
|
/* We check implicitly typed variables in symbol.c:gfc_set_default_type().
|
Don't repeat the checks here. */
|
Don't repeat the checks here. */
|
if (sym->attr.implicit_type)
|
if (sym->attr.implicit_type)
|
return SUCCESS;
|
return SUCCESS;
|
|
|
/* For subroutines or functions that are passed to a BIND(C) procedure,
|
/* For subroutines or functions that are passed to a BIND(C) procedure,
|
they're interoperable if they're BIND(C) and their params are all
|
they're interoperable if they're BIND(C) and their params are all
|
interoperable. */
|
interoperable. */
|
if (sym->attr.flavor == FL_PROCEDURE)
|
if (sym->attr.flavor == FL_PROCEDURE)
|
{
|
{
|
if (sym->attr.is_bind_c == 0)
|
if (sym->attr.is_bind_c == 0)
|
{
|
{
|
gfc_error_now ("Procedure '%s' at %L must have the BIND(C) "
|
gfc_error_now ("Procedure '%s' at %L must have the BIND(C) "
|
"attribute to be C interoperable", sym->name,
|
"attribute to be C interoperable", sym->name,
|
&(sym->declared_at));
|
&(sym->declared_at));
|
|
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (sym->attr.is_c_interop == 1)
|
if (sym->attr.is_c_interop == 1)
|
/* We've already checked this procedure; don't check it again. */
|
/* We've already checked this procedure; don't check it again. */
|
return SUCCESS;
|
return SUCCESS;
|
else
|
else
|
return verify_bind_c_sym (sym, &(sym->ts), sym->attr.in_common,
|
return verify_bind_c_sym (sym, &(sym->ts), sym->attr.in_common,
|
sym->common_block);
|
sym->common_block);
|
}
|
}
|
}
|
}
|
|
|
/* See if we've stored a reference to a procedure that owns sym. */
|
/* See if we've stored a reference to a procedure that owns sym. */
|
if (sym->ns != NULL && sym->ns->proc_name != NULL)
|
if (sym->ns != NULL && sym->ns->proc_name != NULL)
|
{
|
{
|
if (sym->ns->proc_name->attr.is_bind_c == 1)
|
if (sym->ns->proc_name->attr.is_bind_c == 1)
|
{
|
{
|
is_c_interop =
|
is_c_interop =
|
(verify_c_interop (&(sym->ts))
|
(verify_c_interop (&(sym->ts))
|
== SUCCESS ? 1 : 0);
|
== SUCCESS ? 1 : 0);
|
|
|
if (is_c_interop != 1)
|
if (is_c_interop != 1)
|
{
|
{
|
/* Make personalized messages to give better feedback. */
|
/* Make personalized messages to give better feedback. */
|
if (sym->ts.type == BT_DERIVED)
|
if (sym->ts.type == BT_DERIVED)
|
gfc_error ("Type '%s' at %L is a parameter to the BIND(C) "
|
gfc_error ("Type '%s' at %L is a parameter to the BIND(C) "
|
" procedure '%s' but is not C interoperable "
|
" procedure '%s' but is not C interoperable "
|
"because derived type '%s' is not C interoperable",
|
"because derived type '%s' is not C interoperable",
|
sym->name, &(sym->declared_at),
|
sym->name, &(sym->declared_at),
|
sym->ns->proc_name->name,
|
sym->ns->proc_name->name,
|
sym->ts.u.derived->name);
|
sym->ts.u.derived->name);
|
else
|
else
|
gfc_warning ("Variable '%s' at %L is a parameter to the "
|
gfc_warning ("Variable '%s' at %L is a parameter to the "
|
"BIND(C) procedure '%s' but may not be C "
|
"BIND(C) procedure '%s' but may not be C "
|
"interoperable",
|
"interoperable",
|
sym->name, &(sym->declared_at),
|
sym->name, &(sym->declared_at),
|
sym->ns->proc_name->name);
|
sym->ns->proc_name->name);
|
}
|
}
|
|
|
/* Character strings are only C interoperable if they have a
|
/* Character strings are only C interoperable if they have a
|
length of 1. */
|
length of 1. */
|
if (sym->ts.type == BT_CHARACTER)
|
if (sym->ts.type == BT_CHARACTER)
|
{
|
{
|
gfc_charlen *cl = sym->ts.u.cl;
|
gfc_charlen *cl = sym->ts.u.cl;
|
if (!cl || !cl->length || cl->length->expr_type != EXPR_CONSTANT
|
if (!cl || !cl->length || cl->length->expr_type != EXPR_CONSTANT
|
|| mpz_cmp_si (cl->length->value.integer, 1) != 0)
|
|| mpz_cmp_si (cl->length->value.integer, 1) != 0)
|
{
|
{
|
gfc_error ("Character argument '%s' at %L "
|
gfc_error ("Character argument '%s' at %L "
|
"must be length 1 because "
|
"must be length 1 because "
|
"procedure '%s' is BIND(C)",
|
"procedure '%s' is BIND(C)",
|
sym->name, &sym->declared_at,
|
sym->name, &sym->declared_at,
|
sym->ns->proc_name->name);
|
sym->ns->proc_name->name);
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
}
|
}
|
|
|
/* We have to make sure that any param to a bind(c) routine does
|
/* We have to make sure that any param to a bind(c) routine does
|
not have the allocatable, pointer, or optional attributes,
|
not have the allocatable, pointer, or optional attributes,
|
according to J3/04-007, section 5.1. */
|
according to J3/04-007, section 5.1. */
|
if (sym->attr.allocatable == 1)
|
if (sym->attr.allocatable == 1)
|
{
|
{
|
gfc_error ("Variable '%s' at %L cannot have the "
|
gfc_error ("Variable '%s' at %L cannot have the "
|
"ALLOCATABLE attribute because procedure '%s'"
|
"ALLOCATABLE attribute because procedure '%s'"
|
" is BIND(C)", sym->name, &(sym->declared_at),
|
" is BIND(C)", sym->name, &(sym->declared_at),
|
sym->ns->proc_name->name);
|
sym->ns->proc_name->name);
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
|
|
if (sym->attr.pointer == 1)
|
if (sym->attr.pointer == 1)
|
{
|
{
|
gfc_error ("Variable '%s' at %L cannot have the "
|
gfc_error ("Variable '%s' at %L cannot have the "
|
"POINTER attribute because procedure '%s'"
|
"POINTER attribute because procedure '%s'"
|
" is BIND(C)", sym->name, &(sym->declared_at),
|
" is BIND(C)", sym->name, &(sym->declared_at),
|
sym->ns->proc_name->name);
|
sym->ns->proc_name->name);
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
|
|
if (sym->attr.optional == 1)
|
if (sym->attr.optional == 1)
|
{
|
{
|
gfc_error ("Variable '%s' at %L cannot have the "
|
gfc_error ("Variable '%s' at %L cannot have the "
|
"OPTIONAL attribute because procedure '%s'"
|
"OPTIONAL attribute because procedure '%s'"
|
" is BIND(C)", sym->name, &(sym->declared_at),
|
" is BIND(C)", sym->name, &(sym->declared_at),
|
sym->ns->proc_name->name);
|
sym->ns->proc_name->name);
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
|
|
/* Make sure that if it has the dimension attribute, that it is
|
/* Make sure that if it has the dimension attribute, that it is
|
either assumed size or explicit shape. */
|
either assumed size or explicit shape. */
|
if (sym->as != NULL)
|
if (sym->as != NULL)
|
{
|
{
|
if (sym->as->type == AS_ASSUMED_SHAPE)
|
if (sym->as->type == AS_ASSUMED_SHAPE)
|
{
|
{
|
gfc_error ("Assumed-shape array '%s' at %L cannot be an "
|
gfc_error ("Assumed-shape array '%s' at %L cannot be an "
|
"argument to the procedure '%s' at %L because "
|
"argument to the procedure '%s' at %L because "
|
"the procedure is BIND(C)", sym->name,
|
"the procedure is BIND(C)", sym->name,
|
&(sym->declared_at), sym->ns->proc_name->name,
|
&(sym->declared_at), sym->ns->proc_name->name,
|
&(sym->ns->proc_name->declared_at));
|
&(sym->ns->proc_name->declared_at));
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
|
|
if (sym->as->type == AS_DEFERRED)
|
if (sym->as->type == AS_DEFERRED)
|
{
|
{
|
gfc_error ("Deferred-shape array '%s' at %L cannot be an "
|
gfc_error ("Deferred-shape array '%s' at %L cannot be an "
|
"argument to the procedure '%s' at %L because "
|
"argument to the procedure '%s' at %L because "
|
"the procedure is BIND(C)", sym->name,
|
"the procedure is BIND(C)", sym->name,
|
&(sym->declared_at), sym->ns->proc_name->name,
|
&(sym->declared_at), sym->ns->proc_name->name,
|
&(sym->ns->proc_name->declared_at));
|
&(sym->ns->proc_name->declared_at));
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
return retval;
|
return retval;
|
}
|
}
|
|
|
|
|
|
|
/* Function called by variable_decl() that adds a name to the symbol table. */
|
/* Function called by variable_decl() that adds a name to the symbol table. */
|
|
|
static gfc_try
|
static gfc_try
|
build_sym (const char *name, gfc_charlen *cl,
|
build_sym (const char *name, gfc_charlen *cl,
|
gfc_array_spec **as, locus *var_locus)
|
gfc_array_spec **as, locus *var_locus)
|
{
|
{
|
symbol_attribute attr;
|
symbol_attribute attr;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
|
|
if (gfc_get_symbol (name, NULL, &sym))
|
if (gfc_get_symbol (name, NULL, &sym))
|
return FAILURE;
|
return FAILURE;
|
|
|
/* Start updating the symbol table. Add basic type attribute if present. */
|
/* Start updating the symbol table. Add basic type attribute if present. */
|
if (current_ts.type != BT_UNKNOWN
|
if (current_ts.type != BT_UNKNOWN
|
&& (sym->attr.implicit_type == 0
|
&& (sym->attr.implicit_type == 0
|
|| !gfc_compare_types (&sym->ts, ¤t_ts))
|
|| !gfc_compare_types (&sym->ts, ¤t_ts))
|
&& gfc_add_type (sym, ¤t_ts, var_locus) == FAILURE)
|
&& gfc_add_type (sym, ¤t_ts, var_locus) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
if (sym->ts.type == BT_CHARACTER)
|
if (sym->ts.type == BT_CHARACTER)
|
sym->ts.u.cl = cl;
|
sym->ts.u.cl = cl;
|
|
|
/* Add dimension attribute if present. */
|
/* Add dimension attribute if present. */
|
if (gfc_set_array_spec (sym, *as, var_locus) == FAILURE)
|
if (gfc_set_array_spec (sym, *as, var_locus) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
*as = NULL;
|
*as = NULL;
|
|
|
/* Add attribute to symbol. The copy is so that we can reset the
|
/* Add attribute to symbol. The copy is so that we can reset the
|
dimension attribute. */
|
dimension attribute. */
|
attr = current_attr;
|
attr = current_attr;
|
attr.dimension = 0;
|
attr.dimension = 0;
|
|
|
if (gfc_copy_attr (&sym->attr, &attr, var_locus) == FAILURE)
|
if (gfc_copy_attr (&sym->attr, &attr, var_locus) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
/* Finish any work that may need to be done for the binding label,
|
/* Finish any work that may need to be done for the binding label,
|
if it's a bind(c). The bind(c) attr is found before the symbol
|
if it's a bind(c). The bind(c) attr is found before the symbol
|
is made, and before the symbol name (for data decls), so the
|
is made, and before the symbol name (for data decls), so the
|
current_ts is holding the binding label, or nothing if the
|
current_ts is holding the binding label, or nothing if the
|
name= attr wasn't given. Therefore, test here if we're dealing
|
name= attr wasn't given. Therefore, test here if we're dealing
|
with a bind(c) and make sure the binding label is set correctly. */
|
with a bind(c) and make sure the binding label is set correctly. */
|
if (sym->attr.is_bind_c == 1)
|
if (sym->attr.is_bind_c == 1)
|
{
|
{
|
if (sym->binding_label[0] == '\0')
|
if (sym->binding_label[0] == '\0')
|
{
|
{
|
/* Set the binding label and verify that if a NAME= was specified
|
/* Set the binding label and verify that if a NAME= was specified
|
then only one identifier was in the entity-decl-list. */
|
then only one identifier was in the entity-decl-list. */
|
if (set_binding_label (sym->binding_label, sym->name,
|
if (set_binding_label (sym->binding_label, sym->name,
|
num_idents_on_line) == FAILURE)
|
num_idents_on_line) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
}
|
}
|
|
|
/* See if we know we're in a common block, and if it's a bind(c)
|
/* See if we know we're in a common block, and if it's a bind(c)
|
common then we need to make sure we're an interoperable type. */
|
common then we need to make sure we're an interoperable type. */
|
if (sym->attr.in_common == 1)
|
if (sym->attr.in_common == 1)
|
{
|
{
|
/* Test the common block object. */
|
/* Test the common block object. */
|
if (sym->common_block != NULL && sym->common_block->is_bind_c == 1
|
if (sym->common_block != NULL && sym->common_block->is_bind_c == 1
|
&& sym->ts.is_c_interop != 1)
|
&& sym->ts.is_c_interop != 1)
|
{
|
{
|
gfc_error_now ("Variable '%s' in common block '%s' at %C "
|
gfc_error_now ("Variable '%s' in common block '%s' at %C "
|
"must be declared with a C interoperable "
|
"must be declared with a C interoperable "
|
"kind since common block '%s' is BIND(C)",
|
"kind since common block '%s' is BIND(C)",
|
sym->name, sym->common_block->name,
|
sym->name, sym->common_block->name,
|
sym->common_block->name);
|
sym->common_block->name);
|
gfc_clear_error ();
|
gfc_clear_error ();
|
}
|
}
|
}
|
}
|
|
|
sym->attr.implied_index = 0;
|
sym->attr.implied_index = 0;
|
|
|
if (sym->ts.type == BT_CLASS)
|
if (sym->ts.type == BT_CLASS)
|
{
|
{
|
sym->attr.class_ok = (sym->attr.dummy
|
sym->attr.class_ok = (sym->attr.dummy
|
|| sym->attr.pointer
|
|| sym->attr.pointer
|
|| sym->attr.allocatable) ? 1 : 0;
|
|| sym->attr.allocatable) ? 1 : 0;
|
gfc_build_class_symbol (&sym->ts, &sym->attr, &sym->as);
|
gfc_build_class_symbol (&sym->ts, &sym->attr, &sym->as);
|
}
|
}
|
|
|
return SUCCESS;
|
return SUCCESS;
|
}
|
}
|
|
|
|
|
/* Set character constant to the given length. The constant will be padded or
|
/* Set character constant to the given length. The constant will be padded or
|
truncated. If we're inside an array constructor without a typespec, we
|
truncated. If we're inside an array constructor without a typespec, we
|
additionally check that all elements have the same length; check_len -1
|
additionally check that all elements have the same length; check_len -1
|
means no checking. */
|
means no checking. */
|
|
|
void
|
void
|
gfc_set_constant_character_len (int len, gfc_expr *expr, int check_len)
|
gfc_set_constant_character_len (int len, gfc_expr *expr, int check_len)
|
{
|
{
|
gfc_char_t *s;
|
gfc_char_t *s;
|
int slen;
|
int slen;
|
|
|
gcc_assert (expr->expr_type == EXPR_CONSTANT);
|
gcc_assert (expr->expr_type == EXPR_CONSTANT);
|
gcc_assert (expr->ts.type == BT_CHARACTER);
|
gcc_assert (expr->ts.type == BT_CHARACTER);
|
|
|
slen = expr->value.character.length;
|
slen = expr->value.character.length;
|
if (len != slen)
|
if (len != slen)
|
{
|
{
|
s = gfc_get_wide_string (len + 1);
|
s = gfc_get_wide_string (len + 1);
|
memcpy (s, expr->value.character.string,
|
memcpy (s, expr->value.character.string,
|
MIN (len, slen) * sizeof (gfc_char_t));
|
MIN (len, slen) * sizeof (gfc_char_t));
|
if (len > slen)
|
if (len > slen)
|
gfc_wide_memset (&s[slen], ' ', len - slen);
|
gfc_wide_memset (&s[slen], ' ', len - slen);
|
|
|
if (gfc_option.warn_character_truncation && slen > len)
|
if (gfc_option.warn_character_truncation && slen > len)
|
gfc_warning_now ("CHARACTER expression at %L is being truncated "
|
gfc_warning_now ("CHARACTER expression at %L is being truncated "
|
"(%d/%d)", &expr->where, slen, len);
|
"(%d/%d)", &expr->where, slen, len);
|
|
|
/* Apply the standard by 'hand' otherwise it gets cleared for
|
/* Apply the standard by 'hand' otherwise it gets cleared for
|
initializers. */
|
initializers. */
|
if (check_len != -1 && slen != check_len
|
if (check_len != -1 && slen != check_len
|
&& !(gfc_option.allow_std & GFC_STD_GNU))
|
&& !(gfc_option.allow_std & GFC_STD_GNU))
|
gfc_error_now ("The CHARACTER elements of the array constructor "
|
gfc_error_now ("The CHARACTER elements of the array constructor "
|
"at %L must have the same length (%d/%d)",
|
"at %L must have the same length (%d/%d)",
|
&expr->where, slen, check_len);
|
&expr->where, slen, check_len);
|
|
|
s[len] = '\0';
|
s[len] = '\0';
|
gfc_free (expr->value.character.string);
|
gfc_free (expr->value.character.string);
|
expr->value.character.string = s;
|
expr->value.character.string = s;
|
expr->value.character.length = len;
|
expr->value.character.length = len;
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Function to create and update the enumerator history
|
/* Function to create and update the enumerator history
|
using the information passed as arguments.
|
using the information passed as arguments.
|
Pointer "max_enum" is also updated, to point to
|
Pointer "max_enum" is also updated, to point to
|
enum history node containing largest initializer.
|
enum history node containing largest initializer.
|
|
|
SYM points to the symbol node of enumerator.
|
SYM points to the symbol node of enumerator.
|
INIT points to its enumerator value. */
|
INIT points to its enumerator value. */
|
|
|
static void
|
static void
|
create_enum_history (gfc_symbol *sym, gfc_expr *init)
|
create_enum_history (gfc_symbol *sym, gfc_expr *init)
|
{
|
{
|
enumerator_history *new_enum_history;
|
enumerator_history *new_enum_history;
|
gcc_assert (sym != NULL && init != NULL);
|
gcc_assert (sym != NULL && init != NULL);
|
|
|
new_enum_history = XCNEW (enumerator_history);
|
new_enum_history = XCNEW (enumerator_history);
|
|
|
new_enum_history->sym = sym;
|
new_enum_history->sym = sym;
|
new_enum_history->initializer = init;
|
new_enum_history->initializer = init;
|
new_enum_history->next = NULL;
|
new_enum_history->next = NULL;
|
|
|
if (enum_history == NULL)
|
if (enum_history == NULL)
|
{
|
{
|
enum_history = new_enum_history;
|
enum_history = new_enum_history;
|
max_enum = enum_history;
|
max_enum = enum_history;
|
}
|
}
|
else
|
else
|
{
|
{
|
new_enum_history->next = enum_history;
|
new_enum_history->next = enum_history;
|
enum_history = new_enum_history;
|
enum_history = new_enum_history;
|
|
|
if (mpz_cmp (max_enum->initializer->value.integer,
|
if (mpz_cmp (max_enum->initializer->value.integer,
|
new_enum_history->initializer->value.integer) < 0)
|
new_enum_history->initializer->value.integer) < 0)
|
max_enum = new_enum_history;
|
max_enum = new_enum_history;
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Function to free enum kind history. */
|
/* Function to free enum kind history. */
|
|
|
void
|
void
|
gfc_free_enum_history (void)
|
gfc_free_enum_history (void)
|
{
|
{
|
enumerator_history *current = enum_history;
|
enumerator_history *current = enum_history;
|
enumerator_history *next;
|
enumerator_history *next;
|
|
|
while (current != NULL)
|
while (current != NULL)
|
{
|
{
|
next = current->next;
|
next = current->next;
|
gfc_free (current);
|
gfc_free (current);
|
current = next;
|
current = next;
|
}
|
}
|
max_enum = NULL;
|
max_enum = NULL;
|
enum_history = NULL;
|
enum_history = NULL;
|
}
|
}
|
|
|
|
|
/* Function called by variable_decl() that adds an initialization
|
/* Function called by variable_decl() that adds an initialization
|
expression to a symbol. */
|
expression to a symbol. */
|
|
|
static gfc_try
|
static gfc_try
|
add_init_expr_to_sym (const char *name, gfc_expr **initp, locus *var_locus)
|
add_init_expr_to_sym (const char *name, gfc_expr **initp, locus *var_locus)
|
{
|
{
|
symbol_attribute attr;
|
symbol_attribute attr;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_expr *init;
|
gfc_expr *init;
|
|
|
init = *initp;
|
init = *initp;
|
if (find_special (name, &sym, false))
|
if (find_special (name, &sym, false))
|
return FAILURE;
|
return FAILURE;
|
|
|
attr = sym->attr;
|
attr = sym->attr;
|
|
|
/* If this symbol is confirming an implicit parameter type,
|
/* If this symbol is confirming an implicit parameter type,
|
then an initialization expression is not allowed. */
|
then an initialization expression is not allowed. */
|
if (attr.flavor == FL_PARAMETER
|
if (attr.flavor == FL_PARAMETER
|
&& sym->value != NULL
|
&& sym->value != NULL
|
&& *initp != NULL)
|
&& *initp != NULL)
|
{
|
{
|
gfc_error ("Initializer not allowed for PARAMETER '%s' at %C",
|
gfc_error ("Initializer not allowed for PARAMETER '%s' at %C",
|
sym->name);
|
sym->name);
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
|
|
if (init == NULL)
|
if (init == NULL)
|
{
|
{
|
/* An initializer is required for PARAMETER declarations. */
|
/* An initializer is required for PARAMETER declarations. */
|
if (attr.flavor == FL_PARAMETER)
|
if (attr.flavor == FL_PARAMETER)
|
{
|
{
|
gfc_error ("PARAMETER at %L is missing an initializer", var_locus);
|
gfc_error ("PARAMETER at %L is missing an initializer", var_locus);
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* If a variable appears in a DATA block, it cannot have an
|
/* If a variable appears in a DATA block, it cannot have an
|
initializer. */
|
initializer. */
|
if (sym->attr.data)
|
if (sym->attr.data)
|
{
|
{
|
gfc_error ("Variable '%s' at %C with an initializer already "
|
gfc_error ("Variable '%s' at %C with an initializer already "
|
"appears in a DATA statement", sym->name);
|
"appears in a DATA statement", sym->name);
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
|
|
/* Check if the assignment can happen. This has to be put off
|
/* Check if the assignment can happen. This has to be put off
|
until later for a derived type variable. */
|
until later for a derived type variable. */
|
if (sym->ts.type != BT_DERIVED && init->ts.type != BT_DERIVED
|
if (sym->ts.type != BT_DERIVED && init->ts.type != BT_DERIVED
|
&& sym->ts.type != BT_CLASS && init->ts.type != BT_CLASS
|
&& sym->ts.type != BT_CLASS && init->ts.type != BT_CLASS
|
&& gfc_check_assign_symbol (sym, init) == FAILURE)
|
&& gfc_check_assign_symbol (sym, init) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
if (sym->ts.type == BT_CHARACTER && sym->ts.u.cl
|
if (sym->ts.type == BT_CHARACTER && sym->ts.u.cl
|
&& init->ts.type == BT_CHARACTER)
|
&& init->ts.type == BT_CHARACTER)
|
{
|
{
|
/* Update symbol character length according initializer. */
|
/* Update symbol character length according initializer. */
|
if (gfc_check_assign_symbol (sym, init) == FAILURE)
|
if (gfc_check_assign_symbol (sym, init) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
if (sym->ts.u.cl->length == NULL)
|
if (sym->ts.u.cl->length == NULL)
|
{
|
{
|
int clen;
|
int clen;
|
/* If there are multiple CHARACTER variables declared on the
|
/* If there are multiple CHARACTER variables declared on the
|
same line, we don't want them to share the same length. */
|
same line, we don't want them to share the same length. */
|
sym->ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
|
sym->ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
|
|
|
if (sym->attr.flavor == FL_PARAMETER)
|
if (sym->attr.flavor == FL_PARAMETER)
|
{
|
{
|
if (init->expr_type == EXPR_CONSTANT)
|
if (init->expr_type == EXPR_CONSTANT)
|
{
|
{
|
clen = init->value.character.length;
|
clen = init->value.character.length;
|
sym->ts.u.cl->length = gfc_int_expr (clen);
|
sym->ts.u.cl->length = gfc_int_expr (clen);
|
}
|
}
|
else if (init->expr_type == EXPR_ARRAY)
|
else if (init->expr_type == EXPR_ARRAY)
|
{
|
{
|
gfc_expr *p = init->value.constructor->expr;
|
gfc_expr *p = init->value.constructor->expr;
|
clen = p->value.character.length;
|
clen = p->value.character.length;
|
sym->ts.u.cl->length = gfc_int_expr (clen);
|
sym->ts.u.cl->length = gfc_int_expr (clen);
|
}
|
}
|
else if (init->ts.u.cl && init->ts.u.cl->length)
|
else if (init->ts.u.cl && init->ts.u.cl->length)
|
sym->ts.u.cl->length =
|
sym->ts.u.cl->length =
|
gfc_copy_expr (sym->value->ts.u.cl->length);
|
gfc_copy_expr (sym->value->ts.u.cl->length);
|
}
|
}
|
}
|
}
|
/* Update initializer character length according symbol. */
|
/* Update initializer character length according symbol. */
|
else if (sym->ts.u.cl->length->expr_type == EXPR_CONSTANT)
|
else if (sym->ts.u.cl->length->expr_type == EXPR_CONSTANT)
|
{
|
{
|
int len = mpz_get_si (sym->ts.u.cl->length->value.integer);
|
int len = mpz_get_si (sym->ts.u.cl->length->value.integer);
|
gfc_constructor * p;
|
gfc_constructor * p;
|
|
|
if (init->expr_type == EXPR_CONSTANT)
|
if (init->expr_type == EXPR_CONSTANT)
|
gfc_set_constant_character_len (len, init, -1);
|
gfc_set_constant_character_len (len, init, -1);
|
else if (init->expr_type == EXPR_ARRAY)
|
else if (init->expr_type == EXPR_ARRAY)
|
{
|
{
|
/* Build a new charlen to prevent simplification from
|
/* Build a new charlen to prevent simplification from
|
deleting the length before it is resolved. */
|
deleting the length before it is resolved. */
|
init->ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
|
init->ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
|
init->ts.u.cl->length = gfc_copy_expr (sym->ts.u.cl->length);
|
init->ts.u.cl->length = gfc_copy_expr (sym->ts.u.cl->length);
|
|
|
for (p = init->value.constructor; p; p = p->next)
|
for (p = init->value.constructor; p; p = p->next)
|
gfc_set_constant_character_len (len, p->expr, -1);
|
gfc_set_constant_character_len (len, p->expr, -1);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Need to check if the expression we initialized this
|
/* Need to check if the expression we initialized this
|
to was one of the iso_c_binding named constants. If so,
|
to was one of the iso_c_binding named constants. If so,
|
and we're a parameter (constant), let it be iso_c.
|
and we're a parameter (constant), let it be iso_c.
|
For example:
|
For example:
|
integer(c_int), parameter :: my_int = c_int
|
integer(c_int), parameter :: my_int = c_int
|
integer(my_int) :: my_int_2
|
integer(my_int) :: my_int_2
|
If we mark my_int as iso_c (since we can see it's value
|
If we mark my_int as iso_c (since we can see it's value
|
is equal to one of the named constants), then my_int_2
|
is equal to one of the named constants), then my_int_2
|
will be considered C interoperable. */
|
will be considered C interoperable. */
|
if (sym->ts.type != BT_CHARACTER && sym->ts.type != BT_DERIVED)
|
if (sym->ts.type != BT_CHARACTER && sym->ts.type != BT_DERIVED)
|
{
|
{
|
sym->ts.is_iso_c |= init->ts.is_iso_c;
|
sym->ts.is_iso_c |= init->ts.is_iso_c;
|
sym->ts.is_c_interop |= init->ts.is_c_interop;
|
sym->ts.is_c_interop |= init->ts.is_c_interop;
|
/* attr bits needed for module files. */
|
/* attr bits needed for module files. */
|
sym->attr.is_iso_c |= init->ts.is_iso_c;
|
sym->attr.is_iso_c |= init->ts.is_iso_c;
|
sym->attr.is_c_interop |= init->ts.is_c_interop;
|
sym->attr.is_c_interop |= init->ts.is_c_interop;
|
if (init->ts.is_iso_c)
|
if (init->ts.is_iso_c)
|
sym->ts.f90_type = init->ts.f90_type;
|
sym->ts.f90_type = init->ts.f90_type;
|
}
|
}
|
|
|
/* Add initializer. Make sure we keep the ranks sane. */
|
/* Add initializer. Make sure we keep the ranks sane. */
|
if (sym->attr.dimension && init->rank == 0)
|
if (sym->attr.dimension && init->rank == 0)
|
{
|
{
|
mpz_t size;
|
mpz_t size;
|
gfc_expr *array;
|
gfc_expr *array;
|
gfc_constructor *c;
|
gfc_constructor *c;
|
int n;
|
int n;
|
if (sym->attr.flavor == FL_PARAMETER
|
if (sym->attr.flavor == FL_PARAMETER
|
&& init->expr_type == EXPR_CONSTANT
|
&& init->expr_type == EXPR_CONSTANT
|
&& spec_size (sym->as, &size) == SUCCESS
|
&& spec_size (sym->as, &size) == SUCCESS
|
&& mpz_cmp_si (size, 0) > 0)
|
&& mpz_cmp_si (size, 0) > 0)
|
{
|
{
|
array = gfc_start_constructor (init->ts.type, init->ts.kind,
|
array = gfc_start_constructor (init->ts.type, init->ts.kind,
|
&init->where);
|
&init->where);
|
|
|
array->value.constructor = c = NULL;
|
array->value.constructor = c = NULL;
|
for (n = 0; n < (int)mpz_get_si (size); n++)
|
for (n = 0; n < (int)mpz_get_si (size); n++)
|
{
|
{
|
if (array->value.constructor == NULL)
|
if (array->value.constructor == NULL)
|
{
|
{
|
array->value.constructor = c = gfc_get_constructor ();
|
array->value.constructor = c = gfc_get_constructor ();
|
c->expr = init;
|
c->expr = init;
|
}
|
}
|
else
|
else
|
{
|
{
|
c->next = gfc_get_constructor ();
|
c->next = gfc_get_constructor ();
|
c = c->next;
|
c = c->next;
|
c->expr = gfc_copy_expr (init);
|
c->expr = gfc_copy_expr (init);
|
}
|
}
|
}
|
}
|
|
|
array->shape = gfc_get_shape (sym->as->rank);
|
array->shape = gfc_get_shape (sym->as->rank);
|
for (n = 0; n < sym->as->rank; n++)
|
for (n = 0; n < sym->as->rank; n++)
|
spec_dimen_size (sym->as, n, &array->shape[n]);
|
spec_dimen_size (sym->as, n, &array->shape[n]);
|
|
|
init = array;
|
init = array;
|
mpz_clear (size);
|
mpz_clear (size);
|
}
|
}
|
init->rank = sym->as->rank;
|
init->rank = sym->as->rank;
|
}
|
}
|
|
|
sym->value = init;
|
sym->value = init;
|
if (sym->attr.save == SAVE_NONE)
|
if (sym->attr.save == SAVE_NONE)
|
sym->attr.save = SAVE_IMPLICIT;
|
sym->attr.save = SAVE_IMPLICIT;
|
*initp = NULL;
|
*initp = NULL;
|
}
|
}
|
|
|
return SUCCESS;
|
return SUCCESS;
|
}
|
}
|
|
|
|
|
/* Function called by variable_decl() that adds a name to a structure
|
/* Function called by variable_decl() that adds a name to a structure
|
being built. */
|
being built. */
|
|
|
static gfc_try
|
static gfc_try
|
build_struct (const char *name, gfc_charlen *cl, gfc_expr **init,
|
build_struct (const char *name, gfc_charlen *cl, gfc_expr **init,
|
gfc_array_spec **as)
|
gfc_array_spec **as)
|
{
|
{
|
gfc_component *c;
|
gfc_component *c;
|
gfc_try t = SUCCESS;
|
gfc_try t = SUCCESS;
|
|
|
/* F03:C438/C439. If the current symbol is of the same derived type that we're
|
/* F03:C438/C439. If the current symbol is of the same derived type that we're
|
constructing, it must have the pointer attribute. */
|
constructing, it must have the pointer attribute. */
|
if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
|
if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
|
&& current_ts.u.derived == gfc_current_block ()
|
&& current_ts.u.derived == gfc_current_block ()
|
&& current_attr.pointer == 0)
|
&& current_attr.pointer == 0)
|
{
|
{
|
gfc_error ("Component at %C must have the POINTER attribute");
|
gfc_error ("Component at %C must have the POINTER attribute");
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
|
|
if (gfc_current_block ()->attr.pointer && (*as)->rank != 0)
|
if (gfc_current_block ()->attr.pointer && (*as)->rank != 0)
|
{
|
{
|
if ((*as)->type != AS_DEFERRED && (*as)->type != AS_EXPLICIT)
|
if ((*as)->type != AS_DEFERRED && (*as)->type != AS_EXPLICIT)
|
{
|
{
|
gfc_error ("Array component of structure at %C must have explicit "
|
gfc_error ("Array component of structure at %C must have explicit "
|
"or deferred shape");
|
"or deferred shape");
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
}
|
}
|
|
|
if (gfc_add_component (gfc_current_block (), name, &c) == FAILURE)
|
if (gfc_add_component (gfc_current_block (), name, &c) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
c->ts = current_ts;
|
c->ts = current_ts;
|
if (c->ts.type == BT_CHARACTER)
|
if (c->ts.type == BT_CHARACTER)
|
c->ts.u.cl = cl;
|
c->ts.u.cl = cl;
|
c->attr = current_attr;
|
c->attr = current_attr;
|
|
|
c->initializer = *init;
|
c->initializer = *init;
|
*init = NULL;
|
*init = NULL;
|
|
|
c->as = *as;
|
c->as = *as;
|
if (c->as != NULL)
|
if (c->as != NULL)
|
c->attr.dimension = 1;
|
c->attr.dimension = 1;
|
*as = NULL;
|
*as = NULL;
|
|
|
/* Should this ever get more complicated, combine with similar section
|
/* Should this ever get more complicated, combine with similar section
|
in add_init_expr_to_sym into a separate function. */
|
in add_init_expr_to_sym into a separate function. */
|
if (c->ts.type == BT_CHARACTER && !c->attr.pointer && c->initializer && c->ts.u.cl
|
if (c->ts.type == BT_CHARACTER && !c->attr.pointer && c->initializer && c->ts.u.cl
|
&& c->ts.u.cl->length && c->ts.u.cl->length->expr_type == EXPR_CONSTANT)
|
&& c->ts.u.cl->length && c->ts.u.cl->length->expr_type == EXPR_CONSTANT)
|
{
|
{
|
int len;
|
int len;
|
|
|
gcc_assert (c->ts.u.cl && c->ts.u.cl->length);
|
gcc_assert (c->ts.u.cl && c->ts.u.cl->length);
|
gcc_assert (c->ts.u.cl->length->expr_type == EXPR_CONSTANT);
|
gcc_assert (c->ts.u.cl->length->expr_type == EXPR_CONSTANT);
|
gcc_assert (c->ts.u.cl->length->ts.type == BT_INTEGER);
|
gcc_assert (c->ts.u.cl->length->ts.type == BT_INTEGER);
|
|
|
len = mpz_get_si (c->ts.u.cl->length->value.integer);
|
len = mpz_get_si (c->ts.u.cl->length->value.integer);
|
|
|
if (c->initializer->expr_type == EXPR_CONSTANT)
|
if (c->initializer->expr_type == EXPR_CONSTANT)
|
gfc_set_constant_character_len (len, c->initializer, -1);
|
gfc_set_constant_character_len (len, c->initializer, -1);
|
else if (mpz_cmp (c->ts.u.cl->length->value.integer,
|
else if (mpz_cmp (c->ts.u.cl->length->value.integer,
|
c->initializer->ts.u.cl->length->value.integer))
|
c->initializer->ts.u.cl->length->value.integer))
|
{
|
{
|
bool has_ts;
|
bool has_ts;
|
gfc_constructor *ctor = c->initializer->value.constructor;
|
gfc_constructor *ctor = c->initializer->value.constructor;
|
|
|
has_ts = (c->initializer->ts.u.cl
|
has_ts = (c->initializer->ts.u.cl
|
&& c->initializer->ts.u.cl->length_from_typespec);
|
&& c->initializer->ts.u.cl->length_from_typespec);
|
|
|
if (ctor)
|
if (ctor)
|
{
|
{
|
int first_len;
|
int first_len;
|
|
|
/* Remember the length of the first element for checking
|
/* Remember the length of the first element for checking
|
that all elements *in the constructor* have the same
|
that all elements *in the constructor* have the same
|
length. This need not be the length of the LHS! */
|
length. This need not be the length of the LHS! */
|
gcc_assert (ctor->expr->expr_type == EXPR_CONSTANT);
|
gcc_assert (ctor->expr->expr_type == EXPR_CONSTANT);
|
gcc_assert (ctor->expr->ts.type == BT_CHARACTER);
|
gcc_assert (ctor->expr->ts.type == BT_CHARACTER);
|
first_len = ctor->expr->value.character.length;
|
first_len = ctor->expr->value.character.length;
|
|
|
for (; ctor; ctor = ctor->next)
|
for (; ctor; ctor = ctor->next)
|
{
|
{
|
if (ctor->expr->expr_type == EXPR_CONSTANT)
|
if (ctor->expr->expr_type == EXPR_CONSTANT)
|
gfc_set_constant_character_len (len, ctor->expr,
|
gfc_set_constant_character_len (len, ctor->expr,
|
has_ts ? -1 : first_len);
|
has_ts ? -1 : first_len);
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Check array components. */
|
/* Check array components. */
|
if (!c->attr.dimension)
|
if (!c->attr.dimension)
|
goto scalar;
|
goto scalar;
|
|
|
if (c->attr.pointer)
|
if (c->attr.pointer)
|
{
|
{
|
if (c->as->type != AS_DEFERRED)
|
if (c->as->type != AS_DEFERRED)
|
{
|
{
|
gfc_error ("Pointer array component of structure at %C must have a "
|
gfc_error ("Pointer array component of structure at %C must have a "
|
"deferred shape");
|
"deferred shape");
|
t = FAILURE;
|
t = FAILURE;
|
}
|
}
|
}
|
}
|
else if (c->attr.allocatable)
|
else if (c->attr.allocatable)
|
{
|
{
|
if (c->as->type != AS_DEFERRED)
|
if (c->as->type != AS_DEFERRED)
|
{
|
{
|
gfc_error ("Allocatable component of structure at %C must have a "
|
gfc_error ("Allocatable component of structure at %C must have a "
|
"deferred shape");
|
"deferred shape");
|
t = FAILURE;
|
t = FAILURE;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (c->as->type != AS_EXPLICIT)
|
if (c->as->type != AS_EXPLICIT)
|
{
|
{
|
gfc_error ("Array component of structure at %C must have an "
|
gfc_error ("Array component of structure at %C must have an "
|
"explicit shape");
|
"explicit shape");
|
t = FAILURE;
|
t = FAILURE;
|
}
|
}
|
}
|
}
|
|
|
scalar:
|
scalar:
|
if (c->ts.type == BT_CLASS)
|
if (c->ts.type == BT_CLASS)
|
gfc_build_class_symbol (&c->ts, &c->attr, &c->as);
|
gfc_build_class_symbol (&c->ts, &c->attr, &c->as);
|
|
|
return t;
|
return t;
|
}
|
}
|
|
|
|
|
/* Match a 'NULL()', and possibly take care of some side effects. */
|
/* Match a 'NULL()', and possibly take care of some side effects. */
|
|
|
match
|
match
|
gfc_match_null (gfc_expr **result)
|
gfc_match_null (gfc_expr **result)
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_expr *e;
|
gfc_expr *e;
|
match m;
|
match m;
|
|
|
m = gfc_match (" null ( )");
|
m = gfc_match (" null ( )");
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
/* The NULL symbol now has to be/become an intrinsic function. */
|
/* The NULL symbol now has to be/become an intrinsic function. */
|
if (gfc_get_symbol ("null", NULL, &sym))
|
if (gfc_get_symbol ("null", NULL, &sym))
|
{
|
{
|
gfc_error ("NULL() initialization at %C is ambiguous");
|
gfc_error ("NULL() initialization at %C is ambiguous");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
gfc_intrinsic_symbol (sym);
|
gfc_intrinsic_symbol (sym);
|
|
|
if (sym->attr.proc != PROC_INTRINSIC
|
if (sym->attr.proc != PROC_INTRINSIC
|
&& (gfc_add_procedure (&sym->attr, PROC_INTRINSIC,
|
&& (gfc_add_procedure (&sym->attr, PROC_INTRINSIC,
|
sym->name, NULL) == FAILURE
|
sym->name, NULL) == FAILURE
|
|| gfc_add_function (&sym->attr, sym->name, NULL) == FAILURE))
|
|| gfc_add_function (&sym->attr, sym->name, NULL) == FAILURE))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
e = gfc_get_expr ();
|
e = gfc_get_expr ();
|
e->where = gfc_current_locus;
|
e->where = gfc_current_locus;
|
e->expr_type = EXPR_NULL;
|
e->expr_type = EXPR_NULL;
|
e->ts.type = BT_UNKNOWN;
|
e->ts.type = BT_UNKNOWN;
|
|
|
*result = e;
|
*result = e;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a variable name with an optional initializer. When this
|
/* Match a variable name with an optional initializer. When this
|
subroutine is called, a variable is expected to be parsed next.
|
subroutine is called, a variable is expected to be parsed next.
|
Depending on what is happening at the moment, updates either the
|
Depending on what is happening at the moment, updates either the
|
symbol table or the current interface. */
|
symbol table or the current interface. */
|
|
|
static match
|
static match
|
variable_decl (int elem)
|
variable_decl (int elem)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_expr *initializer, *char_len;
|
gfc_expr *initializer, *char_len;
|
gfc_array_spec *as;
|
gfc_array_spec *as;
|
gfc_array_spec *cp_as; /* Extra copy for Cray Pointees. */
|
gfc_array_spec *cp_as; /* Extra copy for Cray Pointees. */
|
gfc_charlen *cl;
|
gfc_charlen *cl;
|
locus var_locus;
|
locus var_locus;
|
match m;
|
match m;
|
gfc_try t;
|
gfc_try t;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
|
|
initializer = NULL;
|
initializer = NULL;
|
as = NULL;
|
as = NULL;
|
cp_as = NULL;
|
cp_as = NULL;
|
|
|
/* When we get here, we've just matched a list of attributes and
|
/* When we get here, we've just matched a list of attributes and
|
maybe a type and a double colon. The next thing we expect to see
|
maybe a type and a double colon. The next thing we expect to see
|
is the name of the symbol. */
|
is the name of the symbol. */
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
var_locus = gfc_current_locus;
|
var_locus = gfc_current_locus;
|
|
|
/* Now we could see the optional array spec. or character length. */
|
/* Now we could see the optional array spec. or character length. */
|
m = gfc_match_array_spec (&as);
|
m = gfc_match_array_spec (&as);
|
if (gfc_option.flag_cray_pointer && m == MATCH_YES)
|
if (gfc_option.flag_cray_pointer && m == MATCH_YES)
|
cp_as = gfc_copy_array_spec (as);
|
cp_as = gfc_copy_array_spec (as);
|
else if (m == MATCH_ERROR)
|
else if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
|
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
as = gfc_copy_array_spec (current_as);
|
as = gfc_copy_array_spec (current_as);
|
|
|
char_len = NULL;
|
char_len = NULL;
|
cl = NULL;
|
cl = NULL;
|
|
|
if (current_ts.type == BT_CHARACTER)
|
if (current_ts.type == BT_CHARACTER)
|
{
|
{
|
switch (match_char_length (&char_len))
|
switch (match_char_length (&char_len))
|
{
|
{
|
case MATCH_YES:
|
case MATCH_YES:
|
cl = gfc_new_charlen (gfc_current_ns, NULL);
|
cl = gfc_new_charlen (gfc_current_ns, NULL);
|
|
|
cl->length = char_len;
|
cl->length = char_len;
|
break;
|
break;
|
|
|
/* Non-constant lengths need to be copied after the first
|
/* Non-constant lengths need to be copied after the first
|
element. Also copy assumed lengths. */
|
element. Also copy assumed lengths. */
|
case MATCH_NO:
|
case MATCH_NO:
|
if (elem > 1
|
if (elem > 1
|
&& (current_ts.u.cl->length == NULL
|
&& (current_ts.u.cl->length == NULL
|
|| current_ts.u.cl->length->expr_type != EXPR_CONSTANT))
|
|| current_ts.u.cl->length->expr_type != EXPR_CONSTANT))
|
{
|
{
|
cl = gfc_new_charlen (gfc_current_ns, NULL);
|
cl = gfc_new_charlen (gfc_current_ns, NULL);
|
cl->length = gfc_copy_expr (current_ts.u.cl->length);
|
cl->length = gfc_copy_expr (current_ts.u.cl->length);
|
}
|
}
|
else
|
else
|
cl = current_ts.u.cl;
|
cl = current_ts.u.cl;
|
|
|
break;
|
break;
|
|
|
case MATCH_ERROR:
|
case MATCH_ERROR:
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
/* If this symbol has already shown up in a Cray Pointer declaration,
|
/* If this symbol has already shown up in a Cray Pointer declaration,
|
then we want to set the type & bail out. */
|
then we want to set the type & bail out. */
|
if (gfc_option.flag_cray_pointer)
|
if (gfc_option.flag_cray_pointer)
|
{
|
{
|
gfc_find_symbol (name, gfc_current_ns, 1, &sym);
|
gfc_find_symbol (name, gfc_current_ns, 1, &sym);
|
if (sym != NULL && sym->attr.cray_pointee)
|
if (sym != NULL && sym->attr.cray_pointee)
|
{
|
{
|
sym->ts.type = current_ts.type;
|
sym->ts.type = current_ts.type;
|
sym->ts.kind = current_ts.kind;
|
sym->ts.kind = current_ts.kind;
|
sym->ts.u.cl = cl;
|
sym->ts.u.cl = cl;
|
sym->ts.u.derived = current_ts.u.derived;
|
sym->ts.u.derived = current_ts.u.derived;
|
sym->ts.is_c_interop = current_ts.is_c_interop;
|
sym->ts.is_c_interop = current_ts.is_c_interop;
|
sym->ts.is_iso_c = current_ts.is_iso_c;
|
sym->ts.is_iso_c = current_ts.is_iso_c;
|
m = MATCH_YES;
|
m = MATCH_YES;
|
|
|
/* Check to see if we have an array specification. */
|
/* Check to see if we have an array specification. */
|
if (cp_as != NULL)
|
if (cp_as != NULL)
|
{
|
{
|
if (sym->as != NULL)
|
if (sym->as != NULL)
|
{
|
{
|
gfc_error ("Duplicate array spec for Cray pointee at %C");
|
gfc_error ("Duplicate array spec for Cray pointee at %C");
|
gfc_free_array_spec (cp_as);
|
gfc_free_array_spec (cp_as);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (gfc_set_array_spec (sym, cp_as, &var_locus) == FAILURE)
|
if (gfc_set_array_spec (sym, cp_as, &var_locus) == FAILURE)
|
gfc_internal_error ("Couldn't set pointee array spec.");
|
gfc_internal_error ("Couldn't set pointee array spec.");
|
|
|
/* Fix the array spec. */
|
/* Fix the array spec. */
|
m = gfc_mod_pointee_as (sym->as);
|
m = gfc_mod_pointee_as (sym->as);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_free_array_spec (cp_as);
|
gfc_free_array_spec (cp_as);
|
}
|
}
|
}
|
}
|
|
|
/* Procedure pointer as function result. */
|
/* Procedure pointer as function result. */
|
if (gfc_current_state () == COMP_FUNCTION
|
if (gfc_current_state () == COMP_FUNCTION
|
&& strcmp ("ppr@", gfc_current_block ()->name) == 0
|
&& strcmp ("ppr@", gfc_current_block ()->name) == 0
|
&& strcmp (name, gfc_current_block ()->ns->proc_name->name) == 0)
|
&& strcmp (name, gfc_current_block ()->ns->proc_name->name) == 0)
|
strcpy (name, "ppr@");
|
strcpy (name, "ppr@");
|
|
|
if (gfc_current_state () == COMP_FUNCTION
|
if (gfc_current_state () == COMP_FUNCTION
|
&& strcmp (name, gfc_current_block ()->name) == 0
|
&& strcmp (name, gfc_current_block ()->name) == 0
|
&& gfc_current_block ()->result
|
&& gfc_current_block ()->result
|
&& strcmp ("ppr@", gfc_current_block ()->result->name) == 0)
|
&& strcmp ("ppr@", gfc_current_block ()->result->name) == 0)
|
strcpy (name, "ppr@");
|
strcpy (name, "ppr@");
|
|
|
/* OK, we've successfully matched the declaration. Now put the
|
/* OK, we've successfully matched the declaration. Now put the
|
symbol in the current namespace, because it might be used in the
|
symbol in the current namespace, because it might be used in the
|
optional initialization expression for this symbol, e.g. this is
|
optional initialization expression for this symbol, e.g. this is
|
perfectly legal:
|
perfectly legal:
|
|
|
integer, parameter :: i = huge(i)
|
integer, parameter :: i = huge(i)
|
|
|
This is only true for parameters or variables of a basic type.
|
This is only true for parameters or variables of a basic type.
|
For components of derived types, it is not true, so we don't
|
For components of derived types, it is not true, so we don't
|
create a symbol for those yet. If we fail to create the symbol,
|
create a symbol for those yet. If we fail to create the symbol,
|
bail out. */
|
bail out. */
|
if (gfc_current_state () != COMP_DERIVED
|
if (gfc_current_state () != COMP_DERIVED
|
&& build_sym (name, cl, &as, &var_locus) == FAILURE)
|
&& build_sym (name, cl, &as, &var_locus) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* An interface body specifies all of the procedure's
|
/* An interface body specifies all of the procedure's
|
characteristics and these shall be consistent with those
|
characteristics and these shall be consistent with those
|
specified in the procedure definition, except that the interface
|
specified in the procedure definition, except that the interface
|
may specify a procedure that is not pure if the procedure is
|
may specify a procedure that is not pure if the procedure is
|
defined to be pure(12.3.2). */
|
defined to be pure(12.3.2). */
|
if (current_ts.type == BT_DERIVED
|
if (current_ts.type == BT_DERIVED
|
&& gfc_current_ns->proc_name
|
&& gfc_current_ns->proc_name
|
&& gfc_current_ns->proc_name->attr.if_source == IFSRC_IFBODY
|
&& gfc_current_ns->proc_name->attr.if_source == IFSRC_IFBODY
|
&& current_ts.u.derived->ns != gfc_current_ns)
|
&& current_ts.u.derived->ns != gfc_current_ns)
|
{
|
{
|
gfc_symtree *st;
|
gfc_symtree *st;
|
st = gfc_find_symtree (gfc_current_ns->sym_root, current_ts.u.derived->name);
|
st = gfc_find_symtree (gfc_current_ns->sym_root, current_ts.u.derived->name);
|
if (!(current_ts.u.derived->attr.imported
|
if (!(current_ts.u.derived->attr.imported
|
&& st != NULL
|
&& st != NULL
|
&& st->n.sym == current_ts.u.derived)
|
&& st->n.sym == current_ts.u.derived)
|
&& !gfc_current_ns->has_import_set)
|
&& !gfc_current_ns->has_import_set)
|
{
|
{
|
gfc_error ("the type of '%s' at %C has not been declared within the "
|
gfc_error ("the type of '%s' at %C has not been declared within the "
|
"interface", name);
|
"interface", name);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
/* In functions that have a RESULT variable defined, the function
|
/* In functions that have a RESULT variable defined, the function
|
name always refers to function calls. Therefore, the name is
|
name always refers to function calls. Therefore, the name is
|
not allowed to appear in specification statements. */
|
not allowed to appear in specification statements. */
|
if (gfc_current_state () == COMP_FUNCTION
|
if (gfc_current_state () == COMP_FUNCTION
|
&& gfc_current_block () != NULL
|
&& gfc_current_block () != NULL
|
&& gfc_current_block ()->result != NULL
|
&& gfc_current_block ()->result != NULL
|
&& gfc_current_block ()->result != gfc_current_block ()
|
&& gfc_current_block ()->result != gfc_current_block ()
|
&& strcmp (gfc_current_block ()->name, name) == 0)
|
&& strcmp (gfc_current_block ()->name, name) == 0)
|
{
|
{
|
gfc_error ("Function name '%s' not allowed at %C", name);
|
gfc_error ("Function name '%s' not allowed at %C", name);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* We allow old-style initializations of the form
|
/* We allow old-style initializations of the form
|
integer i /2/, j(4) /3*3, 1/
|
integer i /2/, j(4) /3*3, 1/
|
(if no colon has been seen). These are different from data
|
(if no colon has been seen). These are different from data
|
statements in that initializers are only allowed to apply to the
|
statements in that initializers are only allowed to apply to the
|
variable immediately preceding, i.e.
|
variable immediately preceding, i.e.
|
integer i, j /1, 2/
|
integer i, j /1, 2/
|
is not allowed. Therefore we have to do some work manually, that
|
is not allowed. Therefore we have to do some work manually, that
|
could otherwise be left to the matchers for DATA statements. */
|
could otherwise be left to the matchers for DATA statements. */
|
|
|
if (!colon_seen && gfc_match (" /") == MATCH_YES)
|
if (!colon_seen && gfc_match (" /") == MATCH_YES)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_GNU, "Extension: Old-style "
|
if (gfc_notify_std (GFC_STD_GNU, "Extension: Old-style "
|
"initialization at %C") == FAILURE)
|
"initialization at %C") == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
return match_old_style_init (name);
|
return match_old_style_init (name);
|
}
|
}
|
|
|
/* The double colon must be present in order to have initializers.
|
/* The double colon must be present in order to have initializers.
|
Otherwise the statement is ambiguous with an assignment statement. */
|
Otherwise the statement is ambiguous with an assignment statement. */
|
if (colon_seen)
|
if (colon_seen)
|
{
|
{
|
if (gfc_match (" =>") == MATCH_YES)
|
if (gfc_match (" =>") == MATCH_YES)
|
{
|
{
|
if (!current_attr.pointer)
|
if (!current_attr.pointer)
|
{
|
{
|
gfc_error ("Initialization at %C isn't for a pointer variable");
|
gfc_error ("Initialization at %C isn't for a pointer variable");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
m = gfc_match_null (&initializer);
|
m = gfc_match_null (&initializer);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Pointer initialization requires a NULL() at %C");
|
gfc_error ("Pointer initialization requires a NULL() at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_pure (NULL) && gfc_state_stack->state != COMP_DERIVED)
|
if (gfc_pure (NULL) && gfc_state_stack->state != COMP_DERIVED)
|
{
|
{
|
gfc_error ("Initialization of pointer at %C is not allowed in "
|
gfc_error ("Initialization of pointer at %C is not allowed in "
|
"a PURE procedure");
|
"a PURE procedure");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
}
|
}
|
else if (gfc_match_char ('=') == MATCH_YES)
|
else if (gfc_match_char ('=') == MATCH_YES)
|
{
|
{
|
if (current_attr.pointer)
|
if (current_attr.pointer)
|
{
|
{
|
gfc_error ("Pointer initialization at %C requires '=>', "
|
gfc_error ("Pointer initialization at %C requires '=>', "
|
"not '='");
|
"not '='");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
m = gfc_match_init_expr (&initializer);
|
m = gfc_match_init_expr (&initializer);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected an initialization expression at %C");
|
gfc_error ("Expected an initialization expression at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (current_attr.flavor != FL_PARAMETER && gfc_pure (NULL)
|
if (current_attr.flavor != FL_PARAMETER && gfc_pure (NULL)
|
&& gfc_state_stack->state != COMP_DERIVED)
|
&& gfc_state_stack->state != COMP_DERIVED)
|
{
|
{
|
gfc_error ("Initialization of variable at %C is not allowed in "
|
gfc_error ("Initialization of variable at %C is not allowed in "
|
"a PURE procedure");
|
"a PURE procedure");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
if (initializer != NULL && current_attr.allocatable
|
if (initializer != NULL && current_attr.allocatable
|
&& gfc_current_state () == COMP_DERIVED)
|
&& gfc_current_state () == COMP_DERIVED)
|
{
|
{
|
gfc_error ("Initialization of allocatable component at %C is not "
|
gfc_error ("Initialization of allocatable component at %C is not "
|
"allowed");
|
"allowed");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* Add the initializer. Note that it is fine if initializer is
|
/* Add the initializer. Note that it is fine if initializer is
|
NULL here, because we sometimes also need to check if a
|
NULL here, because we sometimes also need to check if a
|
declaration *must* have an initialization expression. */
|
declaration *must* have an initialization expression. */
|
if (gfc_current_state () != COMP_DERIVED)
|
if (gfc_current_state () != COMP_DERIVED)
|
t = add_init_expr_to_sym (name, &initializer, &var_locus);
|
t = add_init_expr_to_sym (name, &initializer, &var_locus);
|
else
|
else
|
{
|
{
|
if (current_ts.type == BT_DERIVED
|
if (current_ts.type == BT_DERIVED
|
&& !current_attr.pointer && !initializer)
|
&& !current_attr.pointer && !initializer)
|
initializer = gfc_default_initializer (¤t_ts);
|
initializer = gfc_default_initializer (¤t_ts);
|
t = build_struct (name, cl, &initializer, &as);
|
t = build_struct (name, cl, &initializer, &as);
|
}
|
}
|
|
|
m = (t == SUCCESS) ? MATCH_YES : MATCH_ERROR;
|
m = (t == SUCCESS) ? MATCH_YES : MATCH_ERROR;
|
|
|
cleanup:
|
cleanup:
|
/* Free stuff up and return. */
|
/* Free stuff up and return. */
|
gfc_free_expr (initializer);
|
gfc_free_expr (initializer);
|
gfc_free_array_spec (as);
|
gfc_free_array_spec (as);
|
|
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match an extended-f77 "TYPESPEC*bytesize"-style kind specification.
|
/* Match an extended-f77 "TYPESPEC*bytesize"-style kind specification.
|
This assumes that the byte size is equal to the kind number for
|
This assumes that the byte size is equal to the kind number for
|
non-COMPLEX types, and equal to twice the kind number for COMPLEX. */
|
non-COMPLEX types, and equal to twice the kind number for COMPLEX. */
|
|
|
match
|
match
|
gfc_match_old_kind_spec (gfc_typespec *ts)
|
gfc_match_old_kind_spec (gfc_typespec *ts)
|
{
|
{
|
match m;
|
match m;
|
int original_kind;
|
int original_kind;
|
|
|
if (gfc_match_char ('*') != MATCH_YES)
|
if (gfc_match_char ('*') != MATCH_YES)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
m = gfc_match_small_literal_int (&ts->kind, NULL);
|
m = gfc_match_small_literal_int (&ts->kind, NULL);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
original_kind = ts->kind;
|
original_kind = ts->kind;
|
|
|
/* Massage the kind numbers for complex types. */
|
/* Massage the kind numbers for complex types. */
|
if (ts->type == BT_COMPLEX)
|
if (ts->type == BT_COMPLEX)
|
{
|
{
|
if (ts->kind % 2)
|
if (ts->kind % 2)
|
{
|
{
|
gfc_error ("Old-style type declaration %s*%d not supported at %C",
|
gfc_error ("Old-style type declaration %s*%d not supported at %C",
|
gfc_basic_typename (ts->type), original_kind);
|
gfc_basic_typename (ts->type), original_kind);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
ts->kind /= 2;
|
ts->kind /= 2;
|
}
|
}
|
|
|
if (gfc_validate_kind (ts->type, ts->kind, true) < 0)
|
if (gfc_validate_kind (ts->type, ts->kind, true) < 0)
|
{
|
{
|
gfc_error ("Old-style type declaration %s*%d not supported at %C",
|
gfc_error ("Old-style type declaration %s*%d not supported at %C",
|
gfc_basic_typename (ts->type), original_kind);
|
gfc_basic_typename (ts->type), original_kind);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_notify_std (GFC_STD_GNU, "Nonstandard type declaration %s*%d at %C",
|
if (gfc_notify_std (GFC_STD_GNU, "Nonstandard type declaration %s*%d at %C",
|
gfc_basic_typename (ts->type), original_kind) == FAILURE)
|
gfc_basic_typename (ts->type), original_kind) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a kind specification. Since kinds are generally optional, we
|
/* Match a kind specification. Since kinds are generally optional, we
|
usually return MATCH_NO if something goes wrong. If a "kind="
|
usually return MATCH_NO if something goes wrong. If a "kind="
|
string is found, then we know we have an error. */
|
string is found, then we know we have an error. */
|
|
|
match
|
match
|
gfc_match_kind_spec (gfc_typespec *ts, bool kind_expr_only)
|
gfc_match_kind_spec (gfc_typespec *ts, bool kind_expr_only)
|
{
|
{
|
locus where, loc;
|
locus where, loc;
|
gfc_expr *e;
|
gfc_expr *e;
|
match m, n;
|
match m, n;
|
char c;
|
char c;
|
const char *msg;
|
const char *msg;
|
|
|
m = MATCH_NO;
|
m = MATCH_NO;
|
n = MATCH_YES;
|
n = MATCH_YES;
|
e = NULL;
|
e = NULL;
|
|
|
where = loc = gfc_current_locus;
|
where = loc = gfc_current_locus;
|
|
|
if (kind_expr_only)
|
if (kind_expr_only)
|
goto kind_expr;
|
goto kind_expr;
|
|
|
if (gfc_match_char ('(') == MATCH_NO)
|
if (gfc_match_char ('(') == MATCH_NO)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
/* Also gobbles optional text. */
|
/* Also gobbles optional text. */
|
if (gfc_match (" kind = ") == MATCH_YES)
|
if (gfc_match (" kind = ") == MATCH_YES)
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
|
|
loc = gfc_current_locus;
|
loc = gfc_current_locus;
|
|
|
kind_expr:
|
kind_expr:
|
n = gfc_match_init_expr (&e);
|
n = gfc_match_init_expr (&e);
|
|
|
if (n != MATCH_YES)
|
if (n != MATCH_YES)
|
{
|
{
|
if (gfc_matching_function)
|
if (gfc_matching_function)
|
{
|
{
|
/* The function kind expression might include use associated or
|
/* The function kind expression might include use associated or
|
imported parameters and try again after the specification
|
imported parameters and try again after the specification
|
expressions..... */
|
expressions..... */
|
if (gfc_match_char (')') != MATCH_YES)
|
if (gfc_match_char (')') != MATCH_YES)
|
{
|
{
|
gfc_error ("Missing right parenthesis at %C");
|
gfc_error ("Missing right parenthesis at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto no_match;
|
goto no_match;
|
}
|
}
|
|
|
gfc_free_expr (e);
|
gfc_free_expr (e);
|
gfc_undo_symbols ();
|
gfc_undo_symbols ();
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* ....or else, the match is real. */
|
/* ....or else, the match is real. */
|
if (n == MATCH_NO)
|
if (n == MATCH_NO)
|
gfc_error ("Expected initialization expression at %C");
|
gfc_error ("Expected initialization expression at %C");
|
if (n != MATCH_YES)
|
if (n != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
}
|
}
|
|
|
if (e->rank != 0)
|
if (e->rank != 0)
|
{
|
{
|
gfc_error ("Expected scalar initialization expression at %C");
|
gfc_error ("Expected scalar initialization expression at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto no_match;
|
goto no_match;
|
}
|
}
|
|
|
msg = gfc_extract_int (e, &ts->kind);
|
msg = gfc_extract_int (e, &ts->kind);
|
|
|
if (msg != NULL)
|
if (msg != NULL)
|
{
|
{
|
gfc_error (msg);
|
gfc_error (msg);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto no_match;
|
goto no_match;
|
}
|
}
|
|
|
/* Before throwing away the expression, let's see if we had a
|
/* Before throwing away the expression, let's see if we had a
|
C interoperable kind (and store the fact). */
|
C interoperable kind (and store the fact). */
|
if (e->ts.is_c_interop == 1)
|
if (e->ts.is_c_interop == 1)
|
{
|
{
|
/* Mark this as c interoperable if being declared with one
|
/* Mark this as c interoperable if being declared with one
|
of the named constants from iso_c_binding. */
|
of the named constants from iso_c_binding. */
|
ts->is_c_interop = e->ts.is_iso_c;
|
ts->is_c_interop = e->ts.is_iso_c;
|
ts->f90_type = e->ts.f90_type;
|
ts->f90_type = e->ts.f90_type;
|
}
|
}
|
|
|
gfc_free_expr (e);
|
gfc_free_expr (e);
|
e = NULL;
|
e = NULL;
|
|
|
/* Ignore errors to this point, if we've gotten here. This means
|
/* Ignore errors to this point, if we've gotten here. This means
|
we ignore the m=MATCH_ERROR from above. */
|
we ignore the m=MATCH_ERROR from above. */
|
if (gfc_validate_kind (ts->type, ts->kind, true) < 0)
|
if (gfc_validate_kind (ts->type, ts->kind, true) < 0)
|
{
|
{
|
gfc_error ("Kind %d not supported for type %s at %C", ts->kind,
|
gfc_error ("Kind %d not supported for type %s at %C", ts->kind,
|
gfc_basic_typename (ts->type));
|
gfc_basic_typename (ts->type));
|
gfc_current_locus = where;
|
gfc_current_locus = where;
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Warn if, e.g., c_int is used for a REAL variable, but not
|
/* Warn if, e.g., c_int is used for a REAL variable, but not
|
if, e.g., c_double is used for COMPLEX as the standard
|
if, e.g., c_double is used for COMPLEX as the standard
|
explicitly says that the kind type parameter for complex and real
|
explicitly says that the kind type parameter for complex and real
|
variable is the same, i.e. c_float == c_float_complex. */
|
variable is the same, i.e. c_float == c_float_complex. */
|
if (ts->f90_type != BT_UNKNOWN && ts->f90_type != ts->type
|
if (ts->f90_type != BT_UNKNOWN && ts->f90_type != ts->type
|
&& !((ts->f90_type == BT_REAL && ts->type == BT_COMPLEX)
|
&& !((ts->f90_type == BT_REAL && ts->type == BT_COMPLEX)
|
|| (ts->f90_type == BT_COMPLEX && ts->type == BT_REAL)))
|
|| (ts->f90_type == BT_COMPLEX && ts->type == BT_REAL)))
|
gfc_warning_now ("C kind type parameter is for type %s but type at %L "
|
gfc_warning_now ("C kind type parameter is for type %s but type at %L "
|
"is %s", gfc_basic_typename (ts->f90_type), &where,
|
"is %s", gfc_basic_typename (ts->f90_type), &where,
|
gfc_basic_typename (ts->type));
|
gfc_basic_typename (ts->type));
|
|
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
if ((c = gfc_next_ascii_char ()) != ')'
|
if ((c = gfc_next_ascii_char ()) != ')'
|
&& (ts->type != BT_CHARACTER || c != ','))
|
&& (ts->type != BT_CHARACTER || c != ','))
|
{
|
{
|
if (ts->type == BT_CHARACTER)
|
if (ts->type == BT_CHARACTER)
|
gfc_error ("Missing right parenthesis or comma at %C");
|
gfc_error ("Missing right parenthesis or comma at %C");
|
else
|
else
|
gfc_error ("Missing right parenthesis at %C");
|
gfc_error ("Missing right parenthesis at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
else
|
else
|
/* All tests passed. */
|
/* All tests passed. */
|
m = MATCH_YES;
|
m = MATCH_YES;
|
|
|
if(m == MATCH_ERROR)
|
if(m == MATCH_ERROR)
|
gfc_current_locus = where;
|
gfc_current_locus = where;
|
|
|
/* Return what we know from the test(s). */
|
/* Return what we know from the test(s). */
|
return m;
|
return m;
|
|
|
no_match:
|
no_match:
|
gfc_free_expr (e);
|
gfc_free_expr (e);
|
gfc_current_locus = where;
|
gfc_current_locus = where;
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
static match
|
static match
|
match_char_kind (int * kind, int * is_iso_c)
|
match_char_kind (int * kind, int * is_iso_c)
|
{
|
{
|
locus where;
|
locus where;
|
gfc_expr *e;
|
gfc_expr *e;
|
match m, n;
|
match m, n;
|
const char *msg;
|
const char *msg;
|
|
|
m = MATCH_NO;
|
m = MATCH_NO;
|
e = NULL;
|
e = NULL;
|
where = gfc_current_locus;
|
where = gfc_current_locus;
|
|
|
n = gfc_match_init_expr (&e);
|
n = gfc_match_init_expr (&e);
|
|
|
if (n != MATCH_YES && gfc_matching_function)
|
if (n != MATCH_YES && gfc_matching_function)
|
{
|
{
|
/* The expression might include use-associated or imported
|
/* The expression might include use-associated or imported
|
parameters and try again after the specification
|
parameters and try again after the specification
|
expressions. */
|
expressions. */
|
gfc_free_expr (e);
|
gfc_free_expr (e);
|
gfc_undo_symbols ();
|
gfc_undo_symbols ();
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (n == MATCH_NO)
|
if (n == MATCH_NO)
|
gfc_error ("Expected initialization expression at %C");
|
gfc_error ("Expected initialization expression at %C");
|
if (n != MATCH_YES)
|
if (n != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (e->rank != 0)
|
if (e->rank != 0)
|
{
|
{
|
gfc_error ("Expected scalar initialization expression at %C");
|
gfc_error ("Expected scalar initialization expression at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto no_match;
|
goto no_match;
|
}
|
}
|
|
|
msg = gfc_extract_int (e, kind);
|
msg = gfc_extract_int (e, kind);
|
*is_iso_c = e->ts.is_iso_c;
|
*is_iso_c = e->ts.is_iso_c;
|
if (msg != NULL)
|
if (msg != NULL)
|
{
|
{
|
gfc_error (msg);
|
gfc_error (msg);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto no_match;
|
goto no_match;
|
}
|
}
|
|
|
gfc_free_expr (e);
|
gfc_free_expr (e);
|
|
|
/* Ignore errors to this point, if we've gotten here. This means
|
/* Ignore errors to this point, if we've gotten here. This means
|
we ignore the m=MATCH_ERROR from above. */
|
we ignore the m=MATCH_ERROR from above. */
|
if (gfc_validate_kind (BT_CHARACTER, *kind, true) < 0)
|
if (gfc_validate_kind (BT_CHARACTER, *kind, true) < 0)
|
{
|
{
|
gfc_error ("Kind %d is not supported for CHARACTER at %C", *kind);
|
gfc_error ("Kind %d is not supported for CHARACTER at %C", *kind);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
else
|
else
|
/* All tests passed. */
|
/* All tests passed. */
|
m = MATCH_YES;
|
m = MATCH_YES;
|
|
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
gfc_current_locus = where;
|
gfc_current_locus = where;
|
|
|
/* Return what we know from the test(s). */
|
/* Return what we know from the test(s). */
|
return m;
|
return m;
|
|
|
no_match:
|
no_match:
|
gfc_free_expr (e);
|
gfc_free_expr (e);
|
gfc_current_locus = where;
|
gfc_current_locus = where;
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match the various kind/length specifications in a CHARACTER
|
/* Match the various kind/length specifications in a CHARACTER
|
declaration. We don't return MATCH_NO. */
|
declaration. We don't return MATCH_NO. */
|
|
|
match
|
match
|
gfc_match_char_spec (gfc_typespec *ts)
|
gfc_match_char_spec (gfc_typespec *ts)
|
{
|
{
|
int kind, seen_length, is_iso_c;
|
int kind, seen_length, is_iso_c;
|
gfc_charlen *cl;
|
gfc_charlen *cl;
|
gfc_expr *len;
|
gfc_expr *len;
|
match m;
|
match m;
|
|
|
len = NULL;
|
len = NULL;
|
seen_length = 0;
|
seen_length = 0;
|
kind = 0;
|
kind = 0;
|
is_iso_c = 0;
|
is_iso_c = 0;
|
|
|
/* Try the old-style specification first. */
|
/* Try the old-style specification first. */
|
old_char_selector = 0;
|
old_char_selector = 0;
|
|
|
m = match_char_length (&len);
|
m = match_char_length (&len);
|
if (m != MATCH_NO)
|
if (m != MATCH_NO)
|
{
|
{
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
old_char_selector = 1;
|
old_char_selector = 1;
|
seen_length = 1;
|
seen_length = 1;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
m = gfc_match_char ('(');
|
m = gfc_match_char ('(');
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
m = MATCH_YES; /* Character without length is a single char. */
|
m = MATCH_YES; /* Character without length is a single char. */
|
goto done;
|
goto done;
|
}
|
}
|
|
|
/* Try the weird case: ( KIND = <int> [ , LEN = <len-param> ] ). */
|
/* Try the weird case: ( KIND = <int> [ , LEN = <len-param> ] ). */
|
if (gfc_match (" kind =") == MATCH_YES)
|
if (gfc_match (" kind =") == MATCH_YES)
|
{
|
{
|
m = match_char_kind (&kind, &is_iso_c);
|
m = match_char_kind (&kind, &is_iso_c);
|
|
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto done;
|
goto done;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
if (gfc_match (" , len =") == MATCH_NO)
|
if (gfc_match (" , len =") == MATCH_NO)
|
goto rparen;
|
goto rparen;
|
|
|
m = char_len_param_value (&len);
|
m = char_len_param_value (&len);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto done;
|
goto done;
|
seen_length = 1;
|
seen_length = 1;
|
|
|
goto rparen;
|
goto rparen;
|
}
|
}
|
|
|
/* Try to match "LEN = <len-param>" or "LEN = <len-param>, KIND = <int>". */
|
/* Try to match "LEN = <len-param>" or "LEN = <len-param>, KIND = <int>". */
|
if (gfc_match (" len =") == MATCH_YES)
|
if (gfc_match (" len =") == MATCH_YES)
|
{
|
{
|
m = char_len_param_value (&len);
|
m = char_len_param_value (&len);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto done;
|
goto done;
|
seen_length = 1;
|
seen_length = 1;
|
|
|
if (gfc_match_char (')') == MATCH_YES)
|
if (gfc_match_char (')') == MATCH_YES)
|
goto done;
|
goto done;
|
|
|
if (gfc_match (" , kind =") != MATCH_YES)
|
if (gfc_match (" , kind =") != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
if (match_char_kind (&kind, &is_iso_c) == MATCH_ERROR)
|
if (match_char_kind (&kind, &is_iso_c) == MATCH_ERROR)
|
goto done;
|
goto done;
|
|
|
goto rparen;
|
goto rparen;
|
}
|
}
|
|
|
/* Try to match ( <len-param> ) or ( <len-param> , [ KIND = ] <int> ). */
|
/* Try to match ( <len-param> ) or ( <len-param> , [ KIND = ] <int> ). */
|
m = char_len_param_value (&len);
|
m = char_len_param_value (&len);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto done;
|
goto done;
|
seen_length = 1;
|
seen_length = 1;
|
|
|
m = gfc_match_char (')');
|
m = gfc_match_char (')');
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
goto done;
|
goto done;
|
|
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
gfc_match (" kind ="); /* Gobble optional text. */
|
gfc_match (" kind ="); /* Gobble optional text. */
|
|
|
m = match_char_kind (&kind, &is_iso_c);
|
m = match_char_kind (&kind, &is_iso_c);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto done;
|
goto done;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
rparen:
|
rparen:
|
/* Require a right-paren at this point. */
|
/* Require a right-paren at this point. */
|
m = gfc_match_char (')');
|
m = gfc_match_char (')');
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
goto done;
|
goto done;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in CHARACTER declaration at %C");
|
gfc_error ("Syntax error in CHARACTER declaration at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
gfc_free_expr (len);
|
gfc_free_expr (len);
|
return m;
|
return m;
|
|
|
done:
|
done:
|
/* Deal with character functions after USE and IMPORT statements. */
|
/* Deal with character functions after USE and IMPORT statements. */
|
if (gfc_matching_function)
|
if (gfc_matching_function)
|
{
|
{
|
gfc_free_expr (len);
|
gfc_free_expr (len);
|
gfc_undo_symbols ();
|
gfc_undo_symbols ();
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_free_expr (len);
|
gfc_free_expr (len);
|
return m;
|
return m;
|
}
|
}
|
|
|
/* Do some final massaging of the length values. */
|
/* Do some final massaging of the length values. */
|
cl = gfc_new_charlen (gfc_current_ns, NULL);
|
cl = gfc_new_charlen (gfc_current_ns, NULL);
|
|
|
if (seen_length == 0)
|
if (seen_length == 0)
|
cl->length = gfc_int_expr (1);
|
cl->length = gfc_int_expr (1);
|
else
|
else
|
cl->length = len;
|
cl->length = len;
|
|
|
ts->u.cl = cl;
|
ts->u.cl = cl;
|
ts->kind = kind == 0 ? gfc_default_character_kind : kind;
|
ts->kind = kind == 0 ? gfc_default_character_kind : kind;
|
|
|
/* We have to know if it was a c interoperable kind so we can
|
/* We have to know if it was a c interoperable kind so we can
|
do accurate type checking of bind(c) procs, etc. */
|
do accurate type checking of bind(c) procs, etc. */
|
if (kind != 0)
|
if (kind != 0)
|
/* Mark this as c interoperable if being declared with one
|
/* Mark this as c interoperable if being declared with one
|
of the named constants from iso_c_binding. */
|
of the named constants from iso_c_binding. */
|
ts->is_c_interop = is_iso_c;
|
ts->is_c_interop = is_iso_c;
|
else if (len != NULL)
|
else if (len != NULL)
|
/* Here, we might have parsed something such as: character(c_char)
|
/* Here, we might have parsed something such as: character(c_char)
|
In this case, the parsing code above grabs the c_char when
|
In this case, the parsing code above grabs the c_char when
|
looking for the length (line 1690, roughly). it's the last
|
looking for the length (line 1690, roughly). it's the last
|
testcase for parsing the kind params of a character variable.
|
testcase for parsing the kind params of a character variable.
|
However, it's not actually the length. this seems like it
|
However, it's not actually the length. this seems like it
|
could be an error.
|
could be an error.
|
To see if the user used a C interop kind, test the expr
|
To see if the user used a C interop kind, test the expr
|
of the so called length, and see if it's C interoperable. */
|
of the so called length, and see if it's C interoperable. */
|
ts->is_c_interop = len->ts.is_iso_c;
|
ts->is_c_interop = len->ts.is_iso_c;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Matches a declaration-type-spec (F03:R502). If successful, sets the ts
|
/* Matches a declaration-type-spec (F03:R502). If successful, sets the ts
|
structure to the matched specification. This is necessary for FUNCTION and
|
structure to the matched specification. This is necessary for FUNCTION and
|
IMPLICIT statements.
|
IMPLICIT statements.
|
|
|
If implicit_flag is nonzero, then we don't check for the optional
|
If implicit_flag is nonzero, then we don't check for the optional
|
kind specification. Not doing so is needed for matching an IMPLICIT
|
kind specification. Not doing so is needed for matching an IMPLICIT
|
statement correctly. */
|
statement correctly. */
|
|
|
match
|
match
|
gfc_match_decl_type_spec (gfc_typespec *ts, int implicit_flag)
|
gfc_match_decl_type_spec (gfc_typespec *ts, int implicit_flag)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
char c;
|
char c;
|
bool seen_deferred_kind;
|
bool seen_deferred_kind;
|
|
|
/* A belt and braces check that the typespec is correctly being treated
|
/* A belt and braces check that the typespec is correctly being treated
|
as a deferred characteristic association. */
|
as a deferred characteristic association. */
|
seen_deferred_kind = (gfc_current_state () == COMP_FUNCTION)
|
seen_deferred_kind = (gfc_current_state () == COMP_FUNCTION)
|
&& (gfc_current_block ()->result->ts.kind == -1)
|
&& (gfc_current_block ()->result->ts.kind == -1)
|
&& (ts->kind == -1);
|
&& (ts->kind == -1);
|
gfc_clear_ts (ts);
|
gfc_clear_ts (ts);
|
if (seen_deferred_kind)
|
if (seen_deferred_kind)
|
ts->kind = -1;
|
ts->kind = -1;
|
|
|
/* Clear the current binding label, in case one is given. */
|
/* Clear the current binding label, in case one is given. */
|
curr_binding_label[0] = '\0';
|
curr_binding_label[0] = '\0';
|
|
|
if (gfc_match (" byte") == MATCH_YES)
|
if (gfc_match (" byte") == MATCH_YES)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_GNU, "Extension: BYTE type at %C")
|
if (gfc_notify_std (GFC_STD_GNU, "Extension: BYTE type at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_validate_kind (BT_INTEGER, 1, true) < 0)
|
if (gfc_validate_kind (BT_INTEGER, 1, true) < 0)
|
{
|
{
|
gfc_error ("BYTE type used at %C "
|
gfc_error ("BYTE type used at %C "
|
"is not available on the target machine");
|
"is not available on the target machine");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
ts->type = BT_INTEGER;
|
ts->type = BT_INTEGER;
|
ts->kind = 1;
|
ts->kind = 1;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (gfc_match (" integer") == MATCH_YES)
|
if (gfc_match (" integer") == MATCH_YES)
|
{
|
{
|
ts->type = BT_INTEGER;
|
ts->type = BT_INTEGER;
|
ts->kind = gfc_default_integer_kind;
|
ts->kind = gfc_default_integer_kind;
|
goto get_kind;
|
goto get_kind;
|
}
|
}
|
|
|
if (gfc_match (" character") == MATCH_YES)
|
if (gfc_match (" character") == MATCH_YES)
|
{
|
{
|
ts->type = BT_CHARACTER;
|
ts->type = BT_CHARACTER;
|
if (implicit_flag == 0)
|
if (implicit_flag == 0)
|
return gfc_match_char_spec (ts);
|
return gfc_match_char_spec (ts);
|
else
|
else
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (gfc_match (" real") == MATCH_YES)
|
if (gfc_match (" real") == MATCH_YES)
|
{
|
{
|
ts->type = BT_REAL;
|
ts->type = BT_REAL;
|
ts->kind = gfc_default_real_kind;
|
ts->kind = gfc_default_real_kind;
|
goto get_kind;
|
goto get_kind;
|
}
|
}
|
|
|
if (gfc_match (" double precision") == MATCH_YES)
|
if (gfc_match (" double precision") == MATCH_YES)
|
{
|
{
|
ts->type = BT_REAL;
|
ts->type = BT_REAL;
|
ts->kind = gfc_default_double_kind;
|
ts->kind = gfc_default_double_kind;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (gfc_match (" complex") == MATCH_YES)
|
if (gfc_match (" complex") == MATCH_YES)
|
{
|
{
|
ts->type = BT_COMPLEX;
|
ts->type = BT_COMPLEX;
|
ts->kind = gfc_default_complex_kind;
|
ts->kind = gfc_default_complex_kind;
|
goto get_kind;
|
goto get_kind;
|
}
|
}
|
|
|
if (gfc_match (" double complex") == MATCH_YES)
|
if (gfc_match (" double complex") == MATCH_YES)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_GNU, "DOUBLE COMPLEX at %C does not "
|
if (gfc_notify_std (GFC_STD_GNU, "DOUBLE COMPLEX at %C does not "
|
"conform to the Fortran 95 standard") == FAILURE)
|
"conform to the Fortran 95 standard") == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
ts->type = BT_COMPLEX;
|
ts->type = BT_COMPLEX;
|
ts->kind = gfc_default_double_kind;
|
ts->kind = gfc_default_double_kind;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (gfc_match (" logical") == MATCH_YES)
|
if (gfc_match (" logical") == MATCH_YES)
|
{
|
{
|
ts->type = BT_LOGICAL;
|
ts->type = BT_LOGICAL;
|
ts->kind = gfc_default_logical_kind;
|
ts->kind = gfc_default_logical_kind;
|
goto get_kind;
|
goto get_kind;
|
}
|
}
|
|
|
m = gfc_match (" type ( %n )", name);
|
m = gfc_match (" type ( %n )", name);
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
ts->type = BT_DERIVED;
|
ts->type = BT_DERIVED;
|
else
|
else
|
{
|
{
|
m = gfc_match (" class ( %n )", name);
|
m = gfc_match (" class ( %n )", name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
ts->type = BT_CLASS;
|
ts->type = BT_CLASS;
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: CLASS statement at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: CLASS statement at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Defer association of the derived type until the end of the
|
/* Defer association of the derived type until the end of the
|
specification block. However, if the derived type can be
|
specification block. However, if the derived type can be
|
found, add it to the typespec. */
|
found, add it to the typespec. */
|
if (gfc_matching_function)
|
if (gfc_matching_function)
|
{
|
{
|
ts->u.derived = NULL;
|
ts->u.derived = NULL;
|
if (gfc_current_state () != COMP_INTERFACE
|
if (gfc_current_state () != COMP_INTERFACE
|
&& !gfc_find_symbol (name, NULL, 1, &sym) && sym)
|
&& !gfc_find_symbol (name, NULL, 1, &sym) && sym)
|
ts->u.derived = sym;
|
ts->u.derived = sym;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
/* Search for the name but allow the components to be defined later. If
|
/* Search for the name but allow the components to be defined later. If
|
type = -1, this typespec has been seen in a function declaration but
|
type = -1, this typespec has been seen in a function declaration but
|
the type could not be accessed at that point. */
|
the type could not be accessed at that point. */
|
sym = NULL;
|
sym = NULL;
|
if (ts->kind != -1 && gfc_get_ha_symbol (name, &sym))
|
if (ts->kind != -1 && gfc_get_ha_symbol (name, &sym))
|
{
|
{
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (ts->kind == -1)
|
else if (ts->kind == -1)
|
{
|
{
|
int iface = gfc_state_stack->previous->state != COMP_INTERFACE
|
int iface = gfc_state_stack->previous->state != COMP_INTERFACE
|
|| gfc_current_ns->has_import_set;
|
|| gfc_current_ns->has_import_set;
|
if (gfc_find_symbol (name, NULL, iface, &sym))
|
if (gfc_find_symbol (name, NULL, iface, &sym))
|
{
|
{
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
ts->kind = 0;
|
ts->kind = 0;
|
if (sym == NULL)
|
if (sym == NULL)
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
|
|
if (sym->attr.flavor != FL_DERIVED
|
if (sym->attr.flavor != FL_DERIVED
|
&& gfc_add_flavor (&sym->attr, FL_DERIVED, sym->name, NULL) == FAILURE)
|
&& gfc_add_flavor (&sym->attr, FL_DERIVED, sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
gfc_set_sym_referenced (sym);
|
gfc_set_sym_referenced (sym);
|
ts->u.derived = sym;
|
ts->u.derived = sym;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
get_kind:
|
get_kind:
|
/* For all types except double, derived and character, look for an
|
/* For all types except double, derived and character, look for an
|
optional kind specifier. MATCH_NO is actually OK at this point. */
|
optional kind specifier. MATCH_NO is actually OK at this point. */
|
if (implicit_flag == 1)
|
if (implicit_flag == 1)
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
if (gfc_current_form == FORM_FREE)
|
if (gfc_current_form == FORM_FREE)
|
{
|
{
|
c = gfc_peek_ascii_char ();
|
c = gfc_peek_ascii_char ();
|
if (!gfc_is_whitespace (c) && c != '*' && c != '('
|
if (!gfc_is_whitespace (c) && c != '*' && c != '('
|
&& c != ':' && c != ',')
|
&& c != ':' && c != ',')
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
|
|
m = gfc_match_kind_spec (ts, false);
|
m = gfc_match_kind_spec (ts, false);
|
if (m == MATCH_NO && ts->type != BT_CHARACTER)
|
if (m == MATCH_NO && ts->type != BT_CHARACTER)
|
m = gfc_match_old_kind_spec (ts);
|
m = gfc_match_old_kind_spec (ts);
|
|
|
/* Defer association of the KIND expression of function results
|
/* Defer association of the KIND expression of function results
|
until after USE and IMPORT statements. */
|
until after USE and IMPORT statements. */
|
if ((gfc_current_state () == COMP_NONE && gfc_error_flag_test ())
|
if ((gfc_current_state () == COMP_NONE && gfc_error_flag_test ())
|
|| gfc_matching_function)
|
|| gfc_matching_function)
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
m = MATCH_YES; /* No kind specifier found. */
|
m = MATCH_YES; /* No kind specifier found. */
|
|
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match an IMPLICIT NONE statement. Actually, this statement is
|
/* Match an IMPLICIT NONE statement. Actually, this statement is
|
already matched in parse.c, or we would not end up here in the
|
already matched in parse.c, or we would not end up here in the
|
first place. So the only thing we need to check, is if there is
|
first place. So the only thing we need to check, is if there is
|
trailing garbage. If not, the match is successful. */
|
trailing garbage. If not, the match is successful. */
|
|
|
match
|
match
|
gfc_match_implicit_none (void)
|
gfc_match_implicit_none (void)
|
{
|
{
|
return (gfc_match_eos () == MATCH_YES) ? MATCH_YES : MATCH_NO;
|
return (gfc_match_eos () == MATCH_YES) ? MATCH_YES : MATCH_NO;
|
}
|
}
|
|
|
|
|
/* Match the letter range(s) of an IMPLICIT statement. */
|
/* Match the letter range(s) of an IMPLICIT statement. */
|
|
|
static match
|
static match
|
match_implicit_range (void)
|
match_implicit_range (void)
|
{
|
{
|
char c, c1, c2;
|
char c, c1, c2;
|
int inner;
|
int inner;
|
locus cur_loc;
|
locus cur_loc;
|
|
|
cur_loc = gfc_current_locus;
|
cur_loc = gfc_current_locus;
|
|
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
c = gfc_next_ascii_char ();
|
c = gfc_next_ascii_char ();
|
if (c != '(')
|
if (c != '(')
|
{
|
{
|
gfc_error ("Missing character range in IMPLICIT at %C");
|
gfc_error ("Missing character range in IMPLICIT at %C");
|
goto bad;
|
goto bad;
|
}
|
}
|
|
|
inner = 1;
|
inner = 1;
|
while (inner)
|
while (inner)
|
{
|
{
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
c1 = gfc_next_ascii_char ();
|
c1 = gfc_next_ascii_char ();
|
if (!ISALPHA (c1))
|
if (!ISALPHA (c1))
|
goto bad;
|
goto bad;
|
|
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
c = gfc_next_ascii_char ();
|
c = gfc_next_ascii_char ();
|
|
|
switch (c)
|
switch (c)
|
{
|
{
|
case ')':
|
case ')':
|
inner = 0; /* Fall through. */
|
inner = 0; /* Fall through. */
|
|
|
case ',':
|
case ',':
|
c2 = c1;
|
c2 = c1;
|
break;
|
break;
|
|
|
case '-':
|
case '-':
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
c2 = gfc_next_ascii_char ();
|
c2 = gfc_next_ascii_char ();
|
if (!ISALPHA (c2))
|
if (!ISALPHA (c2))
|
goto bad;
|
goto bad;
|
|
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
c = gfc_next_ascii_char ();
|
c = gfc_next_ascii_char ();
|
|
|
if ((c != ',') && (c != ')'))
|
if ((c != ',') && (c != ')'))
|
goto bad;
|
goto bad;
|
if (c == ')')
|
if (c == ')')
|
inner = 0;
|
inner = 0;
|
|
|
break;
|
break;
|
|
|
default:
|
default:
|
goto bad;
|
goto bad;
|
}
|
}
|
|
|
if (c1 > c2)
|
if (c1 > c2)
|
{
|
{
|
gfc_error ("Letters must be in alphabetic order in "
|
gfc_error ("Letters must be in alphabetic order in "
|
"IMPLICIT statement at %C");
|
"IMPLICIT statement at %C");
|
goto bad;
|
goto bad;
|
}
|
}
|
|
|
/* See if we can add the newly matched range to the pending
|
/* See if we can add the newly matched range to the pending
|
implicits from this IMPLICIT statement. We do not check for
|
implicits from this IMPLICIT statement. We do not check for
|
conflicts with whatever earlier IMPLICIT statements may have
|
conflicts with whatever earlier IMPLICIT statements may have
|
set. This is done when we've successfully finished matching
|
set. This is done when we've successfully finished matching
|
the current one. */
|
the current one. */
|
if (gfc_add_new_implicit_range (c1, c2) != SUCCESS)
|
if (gfc_add_new_implicit_range (c1, c2) != SUCCESS)
|
goto bad;
|
goto bad;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
bad:
|
bad:
|
gfc_syntax_error (ST_IMPLICIT);
|
gfc_syntax_error (ST_IMPLICIT);
|
|
|
gfc_current_locus = cur_loc;
|
gfc_current_locus = cur_loc;
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Match an IMPLICIT statement, storing the types for
|
/* Match an IMPLICIT statement, storing the types for
|
gfc_set_implicit() if the statement is accepted by the parser.
|
gfc_set_implicit() if the statement is accepted by the parser.
|
There is a strange looking, but legal syntactic construction
|
There is a strange looking, but legal syntactic construction
|
possible. It looks like:
|
possible. It looks like:
|
|
|
IMPLICIT INTEGER (a-b) (c-d)
|
IMPLICIT INTEGER (a-b) (c-d)
|
|
|
This is legal if "a-b" is a constant expression that happens to
|
This is legal if "a-b" is a constant expression that happens to
|
equal one of the legal kinds for integers. The real problem
|
equal one of the legal kinds for integers. The real problem
|
happens with an implicit specification that looks like:
|
happens with an implicit specification that looks like:
|
|
|
IMPLICIT INTEGER (a-b)
|
IMPLICIT INTEGER (a-b)
|
|
|
In this case, a typespec matcher that is "greedy" (as most of the
|
In this case, a typespec matcher that is "greedy" (as most of the
|
matchers are) gobbles the character range as a kindspec, leaving
|
matchers are) gobbles the character range as a kindspec, leaving
|
nothing left. We therefore have to go a bit more slowly in the
|
nothing left. We therefore have to go a bit more slowly in the
|
matching process by inhibiting the kindspec checking during
|
matching process by inhibiting the kindspec checking during
|
typespec matching and checking for a kind later. */
|
typespec matching and checking for a kind later. */
|
|
|
match
|
match
|
gfc_match_implicit (void)
|
gfc_match_implicit (void)
|
{
|
{
|
gfc_typespec ts;
|
gfc_typespec ts;
|
locus cur_loc;
|
locus cur_loc;
|
char c;
|
char c;
|
match m;
|
match m;
|
|
|
gfc_clear_ts (&ts);
|
gfc_clear_ts (&ts);
|
|
|
/* We don't allow empty implicit statements. */
|
/* We don't allow empty implicit statements. */
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
gfc_error ("Empty IMPLICIT statement at %C");
|
gfc_error ("Empty IMPLICIT statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
do
|
do
|
{
|
{
|
/* First cleanup. */
|
/* First cleanup. */
|
gfc_clear_new_implicit ();
|
gfc_clear_new_implicit ();
|
|
|
/* A basic type is mandatory here. */
|
/* A basic type is mandatory here. */
|
m = gfc_match_decl_type_spec (&ts, 1);
|
m = gfc_match_decl_type_spec (&ts, 1);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
cur_loc = gfc_current_locus;
|
cur_loc = gfc_current_locus;
|
m = match_implicit_range ();
|
m = match_implicit_range ();
|
|
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
/* We may have <TYPE> (<RANGE>). */
|
/* We may have <TYPE> (<RANGE>). */
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
c = gfc_next_ascii_char ();
|
c = gfc_next_ascii_char ();
|
if ((c == '\n') || (c == ','))
|
if ((c == '\n') || (c == ','))
|
{
|
{
|
/* Check for CHARACTER with no length parameter. */
|
/* Check for CHARACTER with no length parameter. */
|
if (ts.type == BT_CHARACTER && !ts.u.cl)
|
if (ts.type == BT_CHARACTER && !ts.u.cl)
|
{
|
{
|
ts.kind = gfc_default_character_kind;
|
ts.kind = gfc_default_character_kind;
|
ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
|
ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
|
ts.u.cl->length = gfc_int_expr (1);
|
ts.u.cl->length = gfc_int_expr (1);
|
}
|
}
|
|
|
/* Record the Successful match. */
|
/* Record the Successful match. */
|
if (gfc_merge_new_implicit (&ts) != SUCCESS)
|
if (gfc_merge_new_implicit (&ts) != SUCCESS)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
continue;
|
continue;
|
}
|
}
|
|
|
gfc_current_locus = cur_loc;
|
gfc_current_locus = cur_loc;
|
}
|
}
|
|
|
/* Discard the (incorrectly) matched range. */
|
/* Discard the (incorrectly) matched range. */
|
gfc_clear_new_implicit ();
|
gfc_clear_new_implicit ();
|
|
|
/* Last chance -- check <TYPE> <SELECTOR> (<RANGE>). */
|
/* Last chance -- check <TYPE> <SELECTOR> (<RANGE>). */
|
if (ts.type == BT_CHARACTER)
|
if (ts.type == BT_CHARACTER)
|
m = gfc_match_char_spec (&ts);
|
m = gfc_match_char_spec (&ts);
|
else
|
else
|
{
|
{
|
m = gfc_match_kind_spec (&ts, false);
|
m = gfc_match_kind_spec (&ts, false);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
m = gfc_match_old_kind_spec (&ts);
|
m = gfc_match_old_kind_spec (&ts);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
}
|
}
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
|
|
m = match_implicit_range ();
|
m = match_implicit_range ();
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
c = gfc_next_ascii_char ();
|
c = gfc_next_ascii_char ();
|
if ((c != '\n') && (c != ','))
|
if ((c != '\n') && (c != ','))
|
goto syntax;
|
goto syntax;
|
|
|
if (gfc_merge_new_implicit (&ts) != SUCCESS)
|
if (gfc_merge_new_implicit (&ts) != SUCCESS)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
while (c == ',');
|
while (c == ',');
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_syntax_error (ST_IMPLICIT);
|
gfc_syntax_error (ST_IMPLICIT);
|
|
|
error:
|
error:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_import (void)
|
gfc_match_import (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
match m;
|
match m;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_symtree *st;
|
gfc_symtree *st;
|
|
|
if (gfc_current_ns->proc_name == NULL
|
if (gfc_current_ns->proc_name == NULL
|
|| gfc_current_ns->proc_name->attr.if_source != IFSRC_IFBODY)
|
|| gfc_current_ns->proc_name->attr.if_source != IFSRC_IFBODY)
|
{
|
{
|
gfc_error ("IMPORT statement at %C only permitted in "
|
gfc_error ("IMPORT statement at %C only permitted in "
|
"an INTERFACE body");
|
"an INTERFACE body");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: IMPORT statement at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: IMPORT statement at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
/* All host variables should be imported. */
|
/* All host variables should be imported. */
|
gfc_current_ns->has_import_set = 1;
|
gfc_current_ns->has_import_set = 1;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (gfc_match (" ::") == MATCH_YES)
|
if (gfc_match (" ::") == MATCH_YES)
|
{
|
{
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
gfc_error ("Expecting list of named entities at %C");
|
gfc_error ("Expecting list of named entities at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
}
|
}
|
|
|
for(;;)
|
for(;;)
|
{
|
{
|
m = gfc_match (" %n", name);
|
m = gfc_match (" %n", name);
|
switch (m)
|
switch (m)
|
{
|
{
|
case MATCH_YES:
|
case MATCH_YES:
|
if (gfc_current_ns->parent != NULL
|
if (gfc_current_ns->parent != NULL
|
&& gfc_find_symbol (name, gfc_current_ns->parent, 1, &sym))
|
&& gfc_find_symbol (name, gfc_current_ns->parent, 1, &sym))
|
{
|
{
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (gfc_current_ns->proc_name->ns->parent != NULL
|
else if (gfc_current_ns->proc_name->ns->parent != NULL
|
&& gfc_find_symbol (name,
|
&& gfc_find_symbol (name,
|
gfc_current_ns->proc_name->ns->parent,
|
gfc_current_ns->proc_name->ns->parent,
|
1, &sym))
|
1, &sym))
|
{
|
{
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
gfc_error ("Type name '%s' at %C is ambiguous", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (sym == NULL)
|
if (sym == NULL)
|
{
|
{
|
gfc_error ("Cannot IMPORT '%s' from host scoping unit "
|
gfc_error ("Cannot IMPORT '%s' from host scoping unit "
|
"at %C - does not exist.", name);
|
"at %C - does not exist.", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_find_symtree (gfc_current_ns->sym_root,name))
|
if (gfc_find_symtree (gfc_current_ns->sym_root,name))
|
{
|
{
|
gfc_warning ("'%s' is already IMPORTed from host scoping unit "
|
gfc_warning ("'%s' is already IMPORTed from host scoping unit "
|
"at %C.", name);
|
"at %C.", name);
|
goto next_item;
|
goto next_item;
|
}
|
}
|
|
|
st = gfc_new_symtree (&gfc_current_ns->sym_root, sym->name);
|
st = gfc_new_symtree (&gfc_current_ns->sym_root, sym->name);
|
st->n.sym = sym;
|
st->n.sym = sym;
|
sym->refs++;
|
sym->refs++;
|
sym->attr.imported = 1;
|
sym->attr.imported = 1;
|
|
|
goto next_item;
|
goto next_item;
|
|
|
case MATCH_NO:
|
case MATCH_NO:
|
break;
|
break;
|
|
|
case MATCH_ERROR:
|
case MATCH_ERROR:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
next_item:
|
next_item:
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in IMPORT statement at %C");
|
gfc_error ("Syntax error in IMPORT statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* A minimal implementation of gfc_match without whitespace, escape
|
/* A minimal implementation of gfc_match without whitespace, escape
|
characters or variable arguments. Returns true if the next
|
characters or variable arguments. Returns true if the next
|
characters match the TARGET template exactly. */
|
characters match the TARGET template exactly. */
|
|
|
static bool
|
static bool
|
match_string_p (const char *target)
|
match_string_p (const char *target)
|
{
|
{
|
const char *p;
|
const char *p;
|
|
|
for (p = target; *p; p++)
|
for (p = target; *p; p++)
|
if ((char) gfc_next_ascii_char () != *p)
|
if ((char) gfc_next_ascii_char () != *p)
|
return false;
|
return false;
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Matches an attribute specification including array specs. If
|
/* Matches an attribute specification including array specs. If
|
successful, leaves the variables current_attr and current_as
|
successful, leaves the variables current_attr and current_as
|
holding the specification. Also sets the colon_seen variable for
|
holding the specification. Also sets the colon_seen variable for
|
later use by matchers associated with initializations.
|
later use by matchers associated with initializations.
|
|
|
This subroutine is a little tricky in the sense that we don't know
|
This subroutine is a little tricky in the sense that we don't know
|
if we really have an attr-spec until we hit the double colon.
|
if we really have an attr-spec until we hit the double colon.
|
Until that time, we can only return MATCH_NO. This forces us to
|
Until that time, we can only return MATCH_NO. This forces us to
|
check for duplicate specification at this level. */
|
check for duplicate specification at this level. */
|
|
|
static match
|
static match
|
match_attr_spec (void)
|
match_attr_spec (void)
|
{
|
{
|
/* Modifiers that can exist in a type statement. */
|
/* Modifiers that can exist in a type statement. */
|
typedef enum
|
typedef enum
|
{ GFC_DECL_BEGIN = 0,
|
{ GFC_DECL_BEGIN = 0,
|
DECL_ALLOCATABLE = GFC_DECL_BEGIN, DECL_DIMENSION, DECL_EXTERNAL,
|
DECL_ALLOCATABLE = GFC_DECL_BEGIN, DECL_DIMENSION, DECL_EXTERNAL,
|
DECL_IN, DECL_OUT, DECL_INOUT, DECL_INTRINSIC, DECL_OPTIONAL,
|
DECL_IN, DECL_OUT, DECL_INOUT, DECL_INTRINSIC, DECL_OPTIONAL,
|
DECL_PARAMETER, DECL_POINTER, DECL_PROTECTED, DECL_PRIVATE,
|
DECL_PARAMETER, DECL_POINTER, DECL_PROTECTED, DECL_PRIVATE,
|
DECL_PUBLIC, DECL_SAVE, DECL_TARGET, DECL_VALUE, DECL_VOLATILE,
|
DECL_PUBLIC, DECL_SAVE, DECL_TARGET, DECL_VALUE, DECL_VOLATILE,
|
DECL_IS_BIND_C, DECL_ASYNCHRONOUS, DECL_NONE,
|
DECL_IS_BIND_C, DECL_ASYNCHRONOUS, DECL_NONE,
|
GFC_DECL_END /* Sentinel */
|
GFC_DECL_END /* Sentinel */
|
}
|
}
|
decl_types;
|
decl_types;
|
|
|
/* GFC_DECL_END is the sentinel, index starts at 0. */
|
/* GFC_DECL_END is the sentinel, index starts at 0. */
|
#define NUM_DECL GFC_DECL_END
|
#define NUM_DECL GFC_DECL_END
|
|
|
locus start, seen_at[NUM_DECL];
|
locus start, seen_at[NUM_DECL];
|
int seen[NUM_DECL];
|
int seen[NUM_DECL];
|
unsigned int d;
|
unsigned int d;
|
const char *attr;
|
const char *attr;
|
match m;
|
match m;
|
gfc_try t;
|
gfc_try t;
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
start = gfc_current_locus;
|
start = gfc_current_locus;
|
|
|
current_as = NULL;
|
current_as = NULL;
|
colon_seen = 0;
|
colon_seen = 0;
|
|
|
/* See if we get all of the keywords up to the final double colon. */
|
/* See if we get all of the keywords up to the final double colon. */
|
for (d = GFC_DECL_BEGIN; d != GFC_DECL_END; d++)
|
for (d = GFC_DECL_BEGIN; d != GFC_DECL_END; d++)
|
seen[d] = 0;
|
seen[d] = 0;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
char ch;
|
char ch;
|
|
|
d = DECL_NONE;
|
d = DECL_NONE;
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
|
|
ch = gfc_next_ascii_char ();
|
ch = gfc_next_ascii_char ();
|
if (ch == ':')
|
if (ch == ':')
|
{
|
{
|
/* This is the successful exit condition for the loop. */
|
/* This is the successful exit condition for the loop. */
|
if (gfc_next_ascii_char () == ':')
|
if (gfc_next_ascii_char () == ':')
|
break;
|
break;
|
}
|
}
|
else if (ch == ',')
|
else if (ch == ',')
|
{
|
{
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
switch (gfc_peek_ascii_char ())
|
switch (gfc_peek_ascii_char ())
|
{
|
{
|
case 'a':
|
case 'a':
|
gfc_next_ascii_char ();
|
gfc_next_ascii_char ();
|
switch (gfc_next_ascii_char ())
|
switch (gfc_next_ascii_char ())
|
{
|
{
|
case 'l':
|
case 'l':
|
if (match_string_p ("locatable"))
|
if (match_string_p ("locatable"))
|
{
|
{
|
/* Matched "allocatable". */
|
/* Matched "allocatable". */
|
d = DECL_ALLOCATABLE;
|
d = DECL_ALLOCATABLE;
|
}
|
}
|
break;
|
break;
|
|
|
case 's':
|
case 's':
|
if (match_string_p ("ynchronous"))
|
if (match_string_p ("ynchronous"))
|
{
|
{
|
/* Matched "asynchronous". */
|
/* Matched "asynchronous". */
|
d = DECL_ASYNCHRONOUS;
|
d = DECL_ASYNCHRONOUS;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
|
|
case 'b':
|
case 'b':
|
/* Try and match the bind(c). */
|
/* Try and match the bind(c). */
|
m = gfc_match_bind_c (NULL, true);
|
m = gfc_match_bind_c (NULL, true);
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
d = DECL_IS_BIND_C;
|
d = DECL_IS_BIND_C;
|
else if (m == MATCH_ERROR)
|
else if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
break;
|
break;
|
|
|
case 'd':
|
case 'd':
|
if (match_string_p ("dimension"))
|
if (match_string_p ("dimension"))
|
d = DECL_DIMENSION;
|
d = DECL_DIMENSION;
|
break;
|
break;
|
|
|
case 'e':
|
case 'e':
|
if (match_string_p ("external"))
|
if (match_string_p ("external"))
|
d = DECL_EXTERNAL;
|
d = DECL_EXTERNAL;
|
break;
|
break;
|
|
|
case 'i':
|
case 'i':
|
if (match_string_p ("int"))
|
if (match_string_p ("int"))
|
{
|
{
|
ch = gfc_next_ascii_char ();
|
ch = gfc_next_ascii_char ();
|
if (ch == 'e')
|
if (ch == 'e')
|
{
|
{
|
if (match_string_p ("nt"))
|
if (match_string_p ("nt"))
|
{
|
{
|
/* Matched "intent". */
|
/* Matched "intent". */
|
/* TODO: Call match_intent_spec from here. */
|
/* TODO: Call match_intent_spec from here. */
|
if (gfc_match (" ( in out )") == MATCH_YES)
|
if (gfc_match (" ( in out )") == MATCH_YES)
|
d = DECL_INOUT;
|
d = DECL_INOUT;
|
else if (gfc_match (" ( in )") == MATCH_YES)
|
else if (gfc_match (" ( in )") == MATCH_YES)
|
d = DECL_IN;
|
d = DECL_IN;
|
else if (gfc_match (" ( out )") == MATCH_YES)
|
else if (gfc_match (" ( out )") == MATCH_YES)
|
d = DECL_OUT;
|
d = DECL_OUT;
|
}
|
}
|
}
|
}
|
else if (ch == 'r')
|
else if (ch == 'r')
|
{
|
{
|
if (match_string_p ("insic"))
|
if (match_string_p ("insic"))
|
{
|
{
|
/* Matched "intrinsic". */
|
/* Matched "intrinsic". */
|
d = DECL_INTRINSIC;
|
d = DECL_INTRINSIC;
|
}
|
}
|
}
|
}
|
}
|
}
|
break;
|
break;
|
|
|
case 'o':
|
case 'o':
|
if (match_string_p ("optional"))
|
if (match_string_p ("optional"))
|
d = DECL_OPTIONAL;
|
d = DECL_OPTIONAL;
|
break;
|
break;
|
|
|
case 'p':
|
case 'p':
|
gfc_next_ascii_char ();
|
gfc_next_ascii_char ();
|
switch (gfc_next_ascii_char ())
|
switch (gfc_next_ascii_char ())
|
{
|
{
|
case 'a':
|
case 'a':
|
if (match_string_p ("rameter"))
|
if (match_string_p ("rameter"))
|
{
|
{
|
/* Matched "parameter". */
|
/* Matched "parameter". */
|
d = DECL_PARAMETER;
|
d = DECL_PARAMETER;
|
}
|
}
|
break;
|
break;
|
|
|
case 'o':
|
case 'o':
|
if (match_string_p ("inter"))
|
if (match_string_p ("inter"))
|
{
|
{
|
/* Matched "pointer". */
|
/* Matched "pointer". */
|
d = DECL_POINTER;
|
d = DECL_POINTER;
|
}
|
}
|
break;
|
break;
|
|
|
case 'r':
|
case 'r':
|
ch = gfc_next_ascii_char ();
|
ch = gfc_next_ascii_char ();
|
if (ch == 'i')
|
if (ch == 'i')
|
{
|
{
|
if (match_string_p ("vate"))
|
if (match_string_p ("vate"))
|
{
|
{
|
/* Matched "private". */
|
/* Matched "private". */
|
d = DECL_PRIVATE;
|
d = DECL_PRIVATE;
|
}
|
}
|
}
|
}
|
else if (ch == 'o')
|
else if (ch == 'o')
|
{
|
{
|
if (match_string_p ("tected"))
|
if (match_string_p ("tected"))
|
{
|
{
|
/* Matched "protected". */
|
/* Matched "protected". */
|
d = DECL_PROTECTED;
|
d = DECL_PROTECTED;
|
}
|
}
|
}
|
}
|
break;
|
break;
|
|
|
case 'u':
|
case 'u':
|
if (match_string_p ("blic"))
|
if (match_string_p ("blic"))
|
{
|
{
|
/* Matched "public". */
|
/* Matched "public". */
|
d = DECL_PUBLIC;
|
d = DECL_PUBLIC;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
break;
|
break;
|
|
|
case 's':
|
case 's':
|
if (match_string_p ("save"))
|
if (match_string_p ("save"))
|
d = DECL_SAVE;
|
d = DECL_SAVE;
|
break;
|
break;
|
|
|
case 't':
|
case 't':
|
if (match_string_p ("target"))
|
if (match_string_p ("target"))
|
d = DECL_TARGET;
|
d = DECL_TARGET;
|
break;
|
break;
|
|
|
case 'v':
|
case 'v':
|
gfc_next_ascii_char ();
|
gfc_next_ascii_char ();
|
ch = gfc_next_ascii_char ();
|
ch = gfc_next_ascii_char ();
|
if (ch == 'a')
|
if (ch == 'a')
|
{
|
{
|
if (match_string_p ("lue"))
|
if (match_string_p ("lue"))
|
{
|
{
|
/* Matched "value". */
|
/* Matched "value". */
|
d = DECL_VALUE;
|
d = DECL_VALUE;
|
}
|
}
|
}
|
}
|
else if (ch == 'o')
|
else if (ch == 'o')
|
{
|
{
|
if (match_string_p ("latile"))
|
if (match_string_p ("latile"))
|
{
|
{
|
/* Matched "volatile". */
|
/* Matched "volatile". */
|
d = DECL_VOLATILE;
|
d = DECL_VOLATILE;
|
}
|
}
|
}
|
}
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* No double colon and no recognizable decl_type, so assume that
|
/* No double colon and no recognizable decl_type, so assume that
|
we've been looking at something else the whole time. */
|
we've been looking at something else the whole time. */
|
if (d == DECL_NONE)
|
if (d == DECL_NONE)
|
{
|
{
|
m = MATCH_NO;
|
m = MATCH_NO;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* Check to make sure any parens are paired up correctly. */
|
/* Check to make sure any parens are paired up correctly. */
|
if (gfc_match_parens () == MATCH_ERROR)
|
if (gfc_match_parens () == MATCH_ERROR)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
seen[d]++;
|
seen[d]++;
|
seen_at[d] = gfc_current_locus;
|
seen_at[d] = gfc_current_locus;
|
|
|
if (d == DECL_DIMENSION)
|
if (d == DECL_DIMENSION)
|
{
|
{
|
m = gfc_match_array_spec (¤t_as);
|
m = gfc_match_array_spec (¤t_as);
|
|
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Missing dimension specification at %C");
|
gfc_error ("Missing dimension specification at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
/* Since we've seen a double colon, we have to be looking at an
|
/* Since we've seen a double colon, we have to be looking at an
|
attr-spec. This means that we can now issue errors. */
|
attr-spec. This means that we can now issue errors. */
|
for (d = GFC_DECL_BEGIN; d != GFC_DECL_END; d++)
|
for (d = GFC_DECL_BEGIN; d != GFC_DECL_END; d++)
|
if (seen[d] > 1)
|
if (seen[d] > 1)
|
{
|
{
|
switch (d)
|
switch (d)
|
{
|
{
|
case DECL_ALLOCATABLE:
|
case DECL_ALLOCATABLE:
|
attr = "ALLOCATABLE";
|
attr = "ALLOCATABLE";
|
break;
|
break;
|
case DECL_ASYNCHRONOUS:
|
case DECL_ASYNCHRONOUS:
|
attr = "ASYNCHRONOUS";
|
attr = "ASYNCHRONOUS";
|
break;
|
break;
|
case DECL_DIMENSION:
|
case DECL_DIMENSION:
|
attr = "DIMENSION";
|
attr = "DIMENSION";
|
break;
|
break;
|
case DECL_EXTERNAL:
|
case DECL_EXTERNAL:
|
attr = "EXTERNAL";
|
attr = "EXTERNAL";
|
break;
|
break;
|
case DECL_IN:
|
case DECL_IN:
|
attr = "INTENT (IN)";
|
attr = "INTENT (IN)";
|
break;
|
break;
|
case DECL_OUT:
|
case DECL_OUT:
|
attr = "INTENT (OUT)";
|
attr = "INTENT (OUT)";
|
break;
|
break;
|
case DECL_INOUT:
|
case DECL_INOUT:
|
attr = "INTENT (IN OUT)";
|
attr = "INTENT (IN OUT)";
|
break;
|
break;
|
case DECL_INTRINSIC:
|
case DECL_INTRINSIC:
|
attr = "INTRINSIC";
|
attr = "INTRINSIC";
|
break;
|
break;
|
case DECL_OPTIONAL:
|
case DECL_OPTIONAL:
|
attr = "OPTIONAL";
|
attr = "OPTIONAL";
|
break;
|
break;
|
case DECL_PARAMETER:
|
case DECL_PARAMETER:
|
attr = "PARAMETER";
|
attr = "PARAMETER";
|
break;
|
break;
|
case DECL_POINTER:
|
case DECL_POINTER:
|
attr = "POINTER";
|
attr = "POINTER";
|
break;
|
break;
|
case DECL_PROTECTED:
|
case DECL_PROTECTED:
|
attr = "PROTECTED";
|
attr = "PROTECTED";
|
break;
|
break;
|
case DECL_PRIVATE:
|
case DECL_PRIVATE:
|
attr = "PRIVATE";
|
attr = "PRIVATE";
|
break;
|
break;
|
case DECL_PUBLIC:
|
case DECL_PUBLIC:
|
attr = "PUBLIC";
|
attr = "PUBLIC";
|
break;
|
break;
|
case DECL_SAVE:
|
case DECL_SAVE:
|
attr = "SAVE";
|
attr = "SAVE";
|
break;
|
break;
|
case DECL_TARGET:
|
case DECL_TARGET:
|
attr = "TARGET";
|
attr = "TARGET";
|
break;
|
break;
|
case DECL_IS_BIND_C:
|
case DECL_IS_BIND_C:
|
attr = "IS_BIND_C";
|
attr = "IS_BIND_C";
|
break;
|
break;
|
case DECL_VALUE:
|
case DECL_VALUE:
|
attr = "VALUE";
|
attr = "VALUE";
|
break;
|
break;
|
case DECL_VOLATILE:
|
case DECL_VOLATILE:
|
attr = "VOLATILE";
|
attr = "VOLATILE";
|
break;
|
break;
|
default:
|
default:
|
attr = NULL; /* This shouldn't happen. */
|
attr = NULL; /* This shouldn't happen. */
|
}
|
}
|
|
|
gfc_error ("Duplicate %s attribute at %L", attr, &seen_at[d]);
|
gfc_error ("Duplicate %s attribute at %L", attr, &seen_at[d]);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* Now that we've dealt with duplicate attributes, add the attributes
|
/* Now that we've dealt with duplicate attributes, add the attributes
|
to the current attribute. */
|
to the current attribute. */
|
for (d = GFC_DECL_BEGIN; d != GFC_DECL_END; d++)
|
for (d = GFC_DECL_BEGIN; d != GFC_DECL_END; d++)
|
{
|
{
|
if (seen[d] == 0)
|
if (seen[d] == 0)
|
continue;
|
continue;
|
|
|
if (gfc_current_state () == COMP_DERIVED
|
if (gfc_current_state () == COMP_DERIVED
|
&& d != DECL_DIMENSION && d != DECL_POINTER
|
&& d != DECL_DIMENSION && d != DECL_POINTER
|
&& d != DECL_PRIVATE && d != DECL_PUBLIC
|
&& d != DECL_PRIVATE && d != DECL_PUBLIC
|
&& d != DECL_NONE)
|
&& d != DECL_NONE)
|
{
|
{
|
if (d == DECL_ALLOCATABLE)
|
if (d == DECL_ALLOCATABLE)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ALLOCATABLE "
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ALLOCATABLE "
|
"attribute at %C in a TYPE definition")
|
"attribute at %C in a TYPE definition")
|
== FAILURE)
|
== FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_error ("Attribute at %L is not allowed in a TYPE definition",
|
gfc_error ("Attribute at %L is not allowed in a TYPE definition",
|
&seen_at[d]);
|
&seen_at[d]);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
if ((d == DECL_PRIVATE || d == DECL_PUBLIC)
|
if ((d == DECL_PRIVATE || d == DECL_PUBLIC)
|
&& gfc_current_state () != COMP_MODULE)
|
&& gfc_current_state () != COMP_MODULE)
|
{
|
{
|
if (d == DECL_PRIVATE)
|
if (d == DECL_PRIVATE)
|
attr = "PRIVATE";
|
attr = "PRIVATE";
|
else
|
else
|
attr = "PUBLIC";
|
attr = "PUBLIC";
|
if (gfc_current_state () == COMP_DERIVED
|
if (gfc_current_state () == COMP_DERIVED
|
&& gfc_state_stack->previous
|
&& gfc_state_stack->previous
|
&& gfc_state_stack->previous->state == COMP_MODULE)
|
&& gfc_state_stack->previous->state == COMP_MODULE)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Attribute %s "
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Attribute %s "
|
"at %L in a TYPE definition", attr,
|
"at %L in a TYPE definition", attr,
|
&seen_at[d])
|
&seen_at[d])
|
== FAILURE)
|
== FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_error ("%s attribute at %L is not allowed outside of the "
|
gfc_error ("%s attribute at %L is not allowed outside of the "
|
"specification part of a module", attr, &seen_at[d]);
|
"specification part of a module", attr, &seen_at[d]);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
switch (d)
|
switch (d)
|
{
|
{
|
case DECL_ALLOCATABLE:
|
case DECL_ALLOCATABLE:
|
t = gfc_add_allocatable (¤t_attr, &seen_at[d]);
|
t = gfc_add_allocatable (¤t_attr, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_ASYNCHRONOUS:
|
case DECL_ASYNCHRONOUS:
|
if (gfc_notify_std (GFC_STD_F2003,
|
if (gfc_notify_std (GFC_STD_F2003,
|
"Fortran 2003: ASYNCHRONOUS attribute at %C")
|
"Fortran 2003: ASYNCHRONOUS attribute at %C")
|
== FAILURE)
|
== FAILURE)
|
t = FAILURE;
|
t = FAILURE;
|
else
|
else
|
t = gfc_add_asynchronous (¤t_attr, NULL, &seen_at[d]);
|
t = gfc_add_asynchronous (¤t_attr, NULL, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_DIMENSION:
|
case DECL_DIMENSION:
|
t = gfc_add_dimension (¤t_attr, NULL, &seen_at[d]);
|
t = gfc_add_dimension (¤t_attr, NULL, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_EXTERNAL:
|
case DECL_EXTERNAL:
|
t = gfc_add_external (¤t_attr, &seen_at[d]);
|
t = gfc_add_external (¤t_attr, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_IN:
|
case DECL_IN:
|
t = gfc_add_intent (¤t_attr, INTENT_IN, &seen_at[d]);
|
t = gfc_add_intent (¤t_attr, INTENT_IN, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_OUT:
|
case DECL_OUT:
|
t = gfc_add_intent (¤t_attr, INTENT_OUT, &seen_at[d]);
|
t = gfc_add_intent (¤t_attr, INTENT_OUT, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_INOUT:
|
case DECL_INOUT:
|
t = gfc_add_intent (¤t_attr, INTENT_INOUT, &seen_at[d]);
|
t = gfc_add_intent (¤t_attr, INTENT_INOUT, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_INTRINSIC:
|
case DECL_INTRINSIC:
|
t = gfc_add_intrinsic (¤t_attr, &seen_at[d]);
|
t = gfc_add_intrinsic (¤t_attr, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_OPTIONAL:
|
case DECL_OPTIONAL:
|
t = gfc_add_optional (¤t_attr, &seen_at[d]);
|
t = gfc_add_optional (¤t_attr, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_PARAMETER:
|
case DECL_PARAMETER:
|
t = gfc_add_flavor (¤t_attr, FL_PARAMETER, NULL, &seen_at[d]);
|
t = gfc_add_flavor (¤t_attr, FL_PARAMETER, NULL, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_POINTER:
|
case DECL_POINTER:
|
t = gfc_add_pointer (¤t_attr, &seen_at[d]);
|
t = gfc_add_pointer (¤t_attr, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_PROTECTED:
|
case DECL_PROTECTED:
|
if (gfc_current_ns->proc_name->attr.flavor != FL_MODULE)
|
if (gfc_current_ns->proc_name->attr.flavor != FL_MODULE)
|
{
|
{
|
gfc_error ("PROTECTED at %C only allowed in specification "
|
gfc_error ("PROTECTED at %C only allowed in specification "
|
"part of a module");
|
"part of a module");
|
t = FAILURE;
|
t = FAILURE;
|
break;
|
break;
|
}
|
}
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: PROTECTED "
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: PROTECTED "
|
"attribute at %C")
|
"attribute at %C")
|
== FAILURE)
|
== FAILURE)
|
t = FAILURE;
|
t = FAILURE;
|
else
|
else
|
t = gfc_add_protected (¤t_attr, NULL, &seen_at[d]);
|
t = gfc_add_protected (¤t_attr, NULL, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_PRIVATE:
|
case DECL_PRIVATE:
|
t = gfc_add_access (¤t_attr, ACCESS_PRIVATE, NULL,
|
t = gfc_add_access (¤t_attr, ACCESS_PRIVATE, NULL,
|
&seen_at[d]);
|
&seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_PUBLIC:
|
case DECL_PUBLIC:
|
t = gfc_add_access (¤t_attr, ACCESS_PUBLIC, NULL,
|
t = gfc_add_access (¤t_attr, ACCESS_PUBLIC, NULL,
|
&seen_at[d]);
|
&seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_SAVE:
|
case DECL_SAVE:
|
t = gfc_add_save (¤t_attr, NULL, &seen_at[d]);
|
t = gfc_add_save (¤t_attr, NULL, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_TARGET:
|
case DECL_TARGET:
|
t = gfc_add_target (¤t_attr, &seen_at[d]);
|
t = gfc_add_target (¤t_attr, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_IS_BIND_C:
|
case DECL_IS_BIND_C:
|
t = gfc_add_is_bind_c(¤t_attr, NULL, &seen_at[d], 0);
|
t = gfc_add_is_bind_c(¤t_attr, NULL, &seen_at[d], 0);
|
break;
|
break;
|
|
|
case DECL_VALUE:
|
case DECL_VALUE:
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: VALUE attribute "
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: VALUE attribute "
|
"at %C")
|
"at %C")
|
== FAILURE)
|
== FAILURE)
|
t = FAILURE;
|
t = FAILURE;
|
else
|
else
|
t = gfc_add_value (¤t_attr, NULL, &seen_at[d]);
|
t = gfc_add_value (¤t_attr, NULL, &seen_at[d]);
|
break;
|
break;
|
|
|
case DECL_VOLATILE:
|
case DECL_VOLATILE:
|
if (gfc_notify_std (GFC_STD_F2003,
|
if (gfc_notify_std (GFC_STD_F2003,
|
"Fortran 2003: VOLATILE attribute at %C")
|
"Fortran 2003: VOLATILE attribute at %C")
|
== FAILURE)
|
== FAILURE)
|
t = FAILURE;
|
t = FAILURE;
|
else
|
else
|
t = gfc_add_volatile (¤t_attr, NULL, &seen_at[d]);
|
t = gfc_add_volatile (¤t_attr, NULL, &seen_at[d]);
|
break;
|
break;
|
|
|
default:
|
default:
|
gfc_internal_error ("match_attr_spec(): Bad attribute");
|
gfc_internal_error ("match_attr_spec(): Bad attribute");
|
}
|
}
|
|
|
if (t == FAILURE)
|
if (t == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
colon_seen = 1;
|
colon_seen = 1;
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
cleanup:
|
cleanup:
|
gfc_current_locus = start;
|
gfc_current_locus = start;
|
gfc_free_array_spec (current_as);
|
gfc_free_array_spec (current_as);
|
current_as = NULL;
|
current_as = NULL;
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Set the binding label, dest_label, either with the binding label
|
/* Set the binding label, dest_label, either with the binding label
|
stored in the given gfc_typespec, ts, or if none was provided, it
|
stored in the given gfc_typespec, ts, or if none was provided, it
|
will be the symbol name in all lower case, as required by the draft
|
will be the symbol name in all lower case, as required by the draft
|
(J3/04-007, section 15.4.1). If a binding label was given and
|
(J3/04-007, section 15.4.1). If a binding label was given and
|
there is more than one argument (num_idents), it is an error. */
|
there is more than one argument (num_idents), it is an error. */
|
|
|
gfc_try
|
gfc_try
|
set_binding_label (char *dest_label, const char *sym_name, int num_idents)
|
set_binding_label (char *dest_label, const char *sym_name, int num_idents)
|
{
|
{
|
if (num_idents > 1 && has_name_equals)
|
if (num_idents > 1 && has_name_equals)
|
{
|
{
|
gfc_error ("Multiple identifiers provided with "
|
gfc_error ("Multiple identifiers provided with "
|
"single NAME= specifier at %C");
|
"single NAME= specifier at %C");
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
|
|
if (curr_binding_label[0] != '\0')
|
if (curr_binding_label[0] != '\0')
|
{
|
{
|
/* Binding label given; store in temp holder til have sym. */
|
/* Binding label given; store in temp holder til have sym. */
|
strcpy (dest_label, curr_binding_label);
|
strcpy (dest_label, curr_binding_label);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* No binding label given, and the NAME= specifier did not exist,
|
/* No binding label given, and the NAME= specifier did not exist,
|
which means there was no NAME="". */
|
which means there was no NAME="". */
|
if (sym_name != NULL && has_name_equals == 0)
|
if (sym_name != NULL && has_name_equals == 0)
|
strcpy (dest_label, sym_name);
|
strcpy (dest_label, sym_name);
|
}
|
}
|
|
|
return SUCCESS;
|
return SUCCESS;
|
}
|
}
|
|
|
|
|
/* Set the status of the given common block as being BIND(C) or not,
|
/* Set the status of the given common block as being BIND(C) or not,
|
depending on the given parameter, is_bind_c. */
|
depending on the given parameter, is_bind_c. */
|
|
|
void
|
void
|
set_com_block_bind_c (gfc_common_head *com_block, int is_bind_c)
|
set_com_block_bind_c (gfc_common_head *com_block, int is_bind_c)
|
{
|
{
|
com_block->is_bind_c = is_bind_c;
|
com_block->is_bind_c = is_bind_c;
|
return;
|
return;
|
}
|
}
|
|
|
|
|
/* Verify that the given gfc_typespec is for a C interoperable type. */
|
/* Verify that the given gfc_typespec is for a C interoperable type. */
|
|
|
gfc_try
|
gfc_try
|
verify_c_interop (gfc_typespec *ts)
|
verify_c_interop (gfc_typespec *ts)
|
{
|
{
|
if (ts->type == BT_DERIVED && ts->u.derived != NULL)
|
if (ts->type == BT_DERIVED && ts->u.derived != NULL)
|
return (ts->u.derived->ts.is_c_interop ? SUCCESS : FAILURE);
|
return (ts->u.derived->ts.is_c_interop ? SUCCESS : FAILURE);
|
else if (ts->is_c_interop != 1)
|
else if (ts->is_c_interop != 1)
|
return FAILURE;
|
return FAILURE;
|
|
|
return SUCCESS;
|
return SUCCESS;
|
}
|
}
|
|
|
|
|
/* Verify that the variables of a given common block, which has been
|
/* Verify that the variables of a given common block, which has been
|
defined with the attribute specifier bind(c), to be of a C
|
defined with the attribute specifier bind(c), to be of a C
|
interoperable type. Errors will be reported here, if
|
interoperable type. Errors will be reported here, if
|
encountered. */
|
encountered. */
|
|
|
gfc_try
|
gfc_try
|
verify_com_block_vars_c_interop (gfc_common_head *com_block)
|
verify_com_block_vars_c_interop (gfc_common_head *com_block)
|
{
|
{
|
gfc_symbol *curr_sym = NULL;
|
gfc_symbol *curr_sym = NULL;
|
gfc_try retval = SUCCESS;
|
gfc_try retval = SUCCESS;
|
|
|
curr_sym = com_block->head;
|
curr_sym = com_block->head;
|
|
|
/* Make sure we have at least one symbol. */
|
/* Make sure we have at least one symbol. */
|
if (curr_sym == NULL)
|
if (curr_sym == NULL)
|
return retval;
|
return retval;
|
|
|
/* Here we know we have a symbol, so we'll execute this loop
|
/* Here we know we have a symbol, so we'll execute this loop
|
at least once. */
|
at least once. */
|
do
|
do
|
{
|
{
|
/* The second to last param, 1, says this is in a common block. */
|
/* The second to last param, 1, says this is in a common block. */
|
retval = verify_bind_c_sym (curr_sym, &(curr_sym->ts), 1, com_block);
|
retval = verify_bind_c_sym (curr_sym, &(curr_sym->ts), 1, com_block);
|
curr_sym = curr_sym->common_next;
|
curr_sym = curr_sym->common_next;
|
} while (curr_sym != NULL);
|
} while (curr_sym != NULL);
|
|
|
return retval;
|
return retval;
|
}
|
}
|
|
|
|
|
/* Verify that a given BIND(C) symbol is C interoperable. If it is not,
|
/* Verify that a given BIND(C) symbol is C interoperable. If it is not,
|
an appropriate error message is reported. */
|
an appropriate error message is reported. */
|
|
|
gfc_try
|
gfc_try
|
verify_bind_c_sym (gfc_symbol *tmp_sym, gfc_typespec *ts,
|
verify_bind_c_sym (gfc_symbol *tmp_sym, gfc_typespec *ts,
|
int is_in_common, gfc_common_head *com_block)
|
int is_in_common, gfc_common_head *com_block)
|
{
|
{
|
bool bind_c_function = false;
|
bool bind_c_function = false;
|
gfc_try retval = SUCCESS;
|
gfc_try retval = SUCCESS;
|
|
|
if (tmp_sym->attr.function && tmp_sym->attr.is_bind_c)
|
if (tmp_sym->attr.function && tmp_sym->attr.is_bind_c)
|
bind_c_function = true;
|
bind_c_function = true;
|
|
|
if (tmp_sym->attr.function && tmp_sym->result != NULL)
|
if (tmp_sym->attr.function && tmp_sym->result != NULL)
|
{
|
{
|
tmp_sym = tmp_sym->result;
|
tmp_sym = tmp_sym->result;
|
/* Make sure it wasn't an implicitly typed result. */
|
/* Make sure it wasn't an implicitly typed result. */
|
if (tmp_sym->attr.implicit_type)
|
if (tmp_sym->attr.implicit_type)
|
{
|
{
|
gfc_warning ("Implicitly declared BIND(C) function '%s' at "
|
gfc_warning ("Implicitly declared BIND(C) function '%s' at "
|
"%L may not be C interoperable", tmp_sym->name,
|
"%L may not be C interoperable", tmp_sym->name,
|
&tmp_sym->declared_at);
|
&tmp_sym->declared_at);
|
tmp_sym->ts.f90_type = tmp_sym->ts.type;
|
tmp_sym->ts.f90_type = tmp_sym->ts.type;
|
/* Mark it as C interoperable to prevent duplicate warnings. */
|
/* Mark it as C interoperable to prevent duplicate warnings. */
|
tmp_sym->ts.is_c_interop = 1;
|
tmp_sym->ts.is_c_interop = 1;
|
tmp_sym->attr.is_c_interop = 1;
|
tmp_sym->attr.is_c_interop = 1;
|
}
|
}
|
}
|
}
|
|
|
/* Here, we know we have the bind(c) attribute, so if we have
|
/* Here, we know we have the bind(c) attribute, so if we have
|
enough type info, then verify that it's a C interop kind.
|
enough type info, then verify that it's a C interop kind.
|
The info could be in the symbol already, or possibly still in
|
The info could be in the symbol already, or possibly still in
|
the given ts (current_ts), so look in both. */
|
the given ts (current_ts), so look in both. */
|
if (tmp_sym->ts.type != BT_UNKNOWN || ts->type != BT_UNKNOWN)
|
if (tmp_sym->ts.type != BT_UNKNOWN || ts->type != BT_UNKNOWN)
|
{
|
{
|
if (verify_c_interop (&(tmp_sym->ts)) != SUCCESS)
|
if (verify_c_interop (&(tmp_sym->ts)) != SUCCESS)
|
{
|
{
|
/* See if we're dealing with a sym in a common block or not. */
|
/* See if we're dealing with a sym in a common block or not. */
|
if (is_in_common == 1)
|
if (is_in_common == 1)
|
{
|
{
|
gfc_warning ("Variable '%s' in common block '%s' at %L "
|
gfc_warning ("Variable '%s' in common block '%s' at %L "
|
"may not be a C interoperable "
|
"may not be a C interoperable "
|
"kind though common block '%s' is BIND(C)",
|
"kind though common block '%s' is BIND(C)",
|
tmp_sym->name, com_block->name,
|
tmp_sym->name, com_block->name,
|
&(tmp_sym->declared_at), com_block->name);
|
&(tmp_sym->declared_at), com_block->name);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (tmp_sym->ts.type == BT_DERIVED || ts->type == BT_DERIVED)
|
if (tmp_sym->ts.type == BT_DERIVED || ts->type == BT_DERIVED)
|
gfc_error ("Type declaration '%s' at %L is not C "
|
gfc_error ("Type declaration '%s' at %L is not C "
|
"interoperable but it is BIND(C)",
|
"interoperable but it is BIND(C)",
|
tmp_sym->name, &(tmp_sym->declared_at));
|
tmp_sym->name, &(tmp_sym->declared_at));
|
else
|
else
|
gfc_warning ("Variable '%s' at %L "
|
gfc_warning ("Variable '%s' at %L "
|
"may not be a C interoperable "
|
"may not be a C interoperable "
|
"kind but it is bind(c)",
|
"kind but it is bind(c)",
|
tmp_sym->name, &(tmp_sym->declared_at));
|
tmp_sym->name, &(tmp_sym->declared_at));
|
}
|
}
|
}
|
}
|
|
|
/* Variables declared w/in a common block can't be bind(c)
|
/* Variables declared w/in a common block can't be bind(c)
|
since there's no way for C to see these variables, so there's
|
since there's no way for C to see these variables, so there's
|
semantically no reason for the attribute. */
|
semantically no reason for the attribute. */
|
if (is_in_common == 1 && tmp_sym->attr.is_bind_c == 1)
|
if (is_in_common == 1 && tmp_sym->attr.is_bind_c == 1)
|
{
|
{
|
gfc_error ("Variable '%s' in common block '%s' at "
|
gfc_error ("Variable '%s' in common block '%s' at "
|
"%L cannot be declared with BIND(C) "
|
"%L cannot be declared with BIND(C) "
|
"since it is not a global",
|
"since it is not a global",
|
tmp_sym->name, com_block->name,
|
tmp_sym->name, com_block->name,
|
&(tmp_sym->declared_at));
|
&(tmp_sym->declared_at));
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
|
|
/* Scalar variables that are bind(c) can not have the pointer
|
/* Scalar variables that are bind(c) can not have the pointer
|
or allocatable attributes. */
|
or allocatable attributes. */
|
if (tmp_sym->attr.is_bind_c == 1)
|
if (tmp_sym->attr.is_bind_c == 1)
|
{
|
{
|
if (tmp_sym->attr.pointer == 1)
|
if (tmp_sym->attr.pointer == 1)
|
{
|
{
|
gfc_error ("Variable '%s' at %L cannot have both the "
|
gfc_error ("Variable '%s' at %L cannot have both the "
|
"POINTER and BIND(C) attributes",
|
"POINTER and BIND(C) attributes",
|
tmp_sym->name, &(tmp_sym->declared_at));
|
tmp_sym->name, &(tmp_sym->declared_at));
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
|
|
if (tmp_sym->attr.allocatable == 1)
|
if (tmp_sym->attr.allocatable == 1)
|
{
|
{
|
gfc_error ("Variable '%s' at %L cannot have both the "
|
gfc_error ("Variable '%s' at %L cannot have both the "
|
"ALLOCATABLE and BIND(C) attributes",
|
"ALLOCATABLE and BIND(C) attributes",
|
tmp_sym->name, &(tmp_sym->declared_at));
|
tmp_sym->name, &(tmp_sym->declared_at));
|
retval = FAILURE;
|
retval = FAILURE;
|
}
|
}
|
|
|
}
|
}
|
|
|
/* If it is a BIND(C) function, make sure the return value is a
|
/* If it is a BIND(C) function, make sure the return value is a
|
scalar value. The previous tests in this function made sure
|
scalar value. The previous tests in this function made sure
|
the type is interoperable. */
|
the type is interoperable. */
|
if (bind_c_function && tmp_sym->as != NULL)
|
if (bind_c_function && tmp_sym->as != NULL)
|
gfc_error ("Return type of BIND(C) function '%s' at %L cannot "
|
gfc_error ("Return type of BIND(C) function '%s' at %L cannot "
|
"be an array", tmp_sym->name, &(tmp_sym->declared_at));
|
"be an array", tmp_sym->name, &(tmp_sym->declared_at));
|
|
|
/* BIND(C) functions can not return a character string. */
|
/* BIND(C) functions can not return a character string. */
|
if (bind_c_function && tmp_sym->ts.type == BT_CHARACTER)
|
if (bind_c_function && tmp_sym->ts.type == BT_CHARACTER)
|
if (tmp_sym->ts.u.cl == NULL || tmp_sym->ts.u.cl->length == NULL
|
if (tmp_sym->ts.u.cl == NULL || tmp_sym->ts.u.cl->length == NULL
|
|| tmp_sym->ts.u.cl->length->expr_type != EXPR_CONSTANT
|
|| tmp_sym->ts.u.cl->length->expr_type != EXPR_CONSTANT
|
|| mpz_cmp_si (tmp_sym->ts.u.cl->length->value.integer, 1) != 0)
|
|| mpz_cmp_si (tmp_sym->ts.u.cl->length->value.integer, 1) != 0)
|
gfc_error ("Return type of BIND(C) function '%s' at %L cannot "
|
gfc_error ("Return type of BIND(C) function '%s' at %L cannot "
|
"be a character string", tmp_sym->name,
|
"be a character string", tmp_sym->name,
|
&(tmp_sym->declared_at));
|
&(tmp_sym->declared_at));
|
}
|
}
|
|
|
/* See if the symbol has been marked as private. If it has, make sure
|
/* See if the symbol has been marked as private. If it has, make sure
|
there is no binding label and warn the user if there is one. */
|
there is no binding label and warn the user if there is one. */
|
if (tmp_sym->attr.access == ACCESS_PRIVATE
|
if (tmp_sym->attr.access == ACCESS_PRIVATE
|
&& tmp_sym->binding_label[0] != '\0')
|
&& tmp_sym->binding_label[0] != '\0')
|
/* Use gfc_warning_now because we won't say that the symbol fails
|
/* Use gfc_warning_now because we won't say that the symbol fails
|
just because of this. */
|
just because of this. */
|
gfc_warning_now ("Symbol '%s' at %L is marked PRIVATE but has been "
|
gfc_warning_now ("Symbol '%s' at %L is marked PRIVATE but has been "
|
"given the binding label '%s'", tmp_sym->name,
|
"given the binding label '%s'", tmp_sym->name,
|
&(tmp_sym->declared_at), tmp_sym->binding_label);
|
&(tmp_sym->declared_at), tmp_sym->binding_label);
|
|
|
return retval;
|
return retval;
|
}
|
}
|
|
|
|
|
/* Set the appropriate fields for a symbol that's been declared as
|
/* Set the appropriate fields for a symbol that's been declared as
|
BIND(C) (the is_bind_c flag and the binding label), and verify that
|
BIND(C) (the is_bind_c flag and the binding label), and verify that
|
the type is C interoperable. Errors are reported by the functions
|
the type is C interoperable. Errors are reported by the functions
|
used to set/test these fields. */
|
used to set/test these fields. */
|
|
|
gfc_try
|
gfc_try
|
set_verify_bind_c_sym (gfc_symbol *tmp_sym, int num_idents)
|
set_verify_bind_c_sym (gfc_symbol *tmp_sym, int num_idents)
|
{
|
{
|
gfc_try retval = SUCCESS;
|
gfc_try retval = SUCCESS;
|
|
|
/* TODO: Do we need to make sure the vars aren't marked private? */
|
/* TODO: Do we need to make sure the vars aren't marked private? */
|
|
|
/* Set the is_bind_c bit in symbol_attribute. */
|
/* Set the is_bind_c bit in symbol_attribute. */
|
gfc_add_is_bind_c (&(tmp_sym->attr), tmp_sym->name, &gfc_current_locus, 0);
|
gfc_add_is_bind_c (&(tmp_sym->attr), tmp_sym->name, &gfc_current_locus, 0);
|
|
|
if (set_binding_label (tmp_sym->binding_label, tmp_sym->name,
|
if (set_binding_label (tmp_sym->binding_label, tmp_sym->name,
|
num_idents) != SUCCESS)
|
num_idents) != SUCCESS)
|
return FAILURE;
|
return FAILURE;
|
|
|
return retval;
|
return retval;
|
}
|
}
|
|
|
|
|
/* Set the fields marking the given common block as BIND(C), including
|
/* Set the fields marking the given common block as BIND(C), including
|
a binding label, and report any errors encountered. */
|
a binding label, and report any errors encountered. */
|
|
|
gfc_try
|
gfc_try
|
set_verify_bind_c_com_block (gfc_common_head *com_block, int num_idents)
|
set_verify_bind_c_com_block (gfc_common_head *com_block, int num_idents)
|
{
|
{
|
gfc_try retval = SUCCESS;
|
gfc_try retval = SUCCESS;
|
|
|
/* destLabel, common name, typespec (which may have binding label). */
|
/* destLabel, common name, typespec (which may have binding label). */
|
if (set_binding_label (com_block->binding_label, com_block->name, num_idents)
|
if (set_binding_label (com_block->binding_label, com_block->name, num_idents)
|
!= SUCCESS)
|
!= SUCCESS)
|
return FAILURE;
|
return FAILURE;
|
|
|
/* Set the given common block (com_block) to being bind(c) (1). */
|
/* Set the given common block (com_block) to being bind(c) (1). */
|
set_com_block_bind_c (com_block, 1);
|
set_com_block_bind_c (com_block, 1);
|
|
|
return retval;
|
return retval;
|
}
|
}
|
|
|
|
|
/* Retrieve the list of one or more identifiers that the given bind(c)
|
/* Retrieve the list of one or more identifiers that the given bind(c)
|
attribute applies to. */
|
attribute applies to. */
|
|
|
gfc_try
|
gfc_try
|
get_bind_c_idents (void)
|
get_bind_c_idents (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
int num_idents = 0;
|
int num_idents = 0;
|
gfc_symbol *tmp_sym = NULL;
|
gfc_symbol *tmp_sym = NULL;
|
match found_id;
|
match found_id;
|
gfc_common_head *com_block = NULL;
|
gfc_common_head *com_block = NULL;
|
|
|
if (gfc_match_name (name) == MATCH_YES)
|
if (gfc_match_name (name) == MATCH_YES)
|
{
|
{
|
found_id = MATCH_YES;
|
found_id = MATCH_YES;
|
gfc_get_ha_symbol (name, &tmp_sym);
|
gfc_get_ha_symbol (name, &tmp_sym);
|
}
|
}
|
else if (match_common_name (name) == MATCH_YES)
|
else if (match_common_name (name) == MATCH_YES)
|
{
|
{
|
found_id = MATCH_YES;
|
found_id = MATCH_YES;
|
com_block = gfc_get_common (name, 0);
|
com_block = gfc_get_common (name, 0);
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_error ("Need either entity or common block name for "
|
gfc_error ("Need either entity or common block name for "
|
"attribute specification statement at %C");
|
"attribute specification statement at %C");
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
|
|
/* Save the current identifier and look for more. */
|
/* Save the current identifier and look for more. */
|
do
|
do
|
{
|
{
|
/* Increment the number of identifiers found for this spec stmt. */
|
/* Increment the number of identifiers found for this spec stmt. */
|
num_idents++;
|
num_idents++;
|
|
|
/* Make sure we have a sym or com block, and verify that it can
|
/* Make sure we have a sym or com block, and verify that it can
|
be bind(c). Set the appropriate field(s) and look for more
|
be bind(c). Set the appropriate field(s) and look for more
|
identifiers. */
|
identifiers. */
|
if (tmp_sym != NULL || com_block != NULL)
|
if (tmp_sym != NULL || com_block != NULL)
|
{
|
{
|
if (tmp_sym != NULL)
|
if (tmp_sym != NULL)
|
{
|
{
|
if (set_verify_bind_c_sym (tmp_sym, num_idents)
|
if (set_verify_bind_c_sym (tmp_sym, num_idents)
|
!= SUCCESS)
|
!= SUCCESS)
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (set_verify_bind_c_com_block(com_block, num_idents)
|
if (set_verify_bind_c_com_block(com_block, num_idents)
|
!= SUCCESS)
|
!= SUCCESS)
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
|
|
/* Look to see if we have another identifier. */
|
/* Look to see if we have another identifier. */
|
tmp_sym = NULL;
|
tmp_sym = NULL;
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
found_id = MATCH_NO;
|
found_id = MATCH_NO;
|
else if (gfc_match_char (',') != MATCH_YES)
|
else if (gfc_match_char (',') != MATCH_YES)
|
found_id = MATCH_NO;
|
found_id = MATCH_NO;
|
else if (gfc_match_name (name) == MATCH_YES)
|
else if (gfc_match_name (name) == MATCH_YES)
|
{
|
{
|
found_id = MATCH_YES;
|
found_id = MATCH_YES;
|
gfc_get_ha_symbol (name, &tmp_sym);
|
gfc_get_ha_symbol (name, &tmp_sym);
|
}
|
}
|
else if (match_common_name (name) == MATCH_YES)
|
else if (match_common_name (name) == MATCH_YES)
|
{
|
{
|
found_id = MATCH_YES;
|
found_id = MATCH_YES;
|
com_block = gfc_get_common (name, 0);
|
com_block = gfc_get_common (name, 0);
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_error ("Missing entity or common block name for "
|
gfc_error ("Missing entity or common block name for "
|
"attribute specification statement at %C");
|
"attribute specification statement at %C");
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_internal_error ("Missing symbol");
|
gfc_internal_error ("Missing symbol");
|
}
|
}
|
} while (found_id == MATCH_YES);
|
} while (found_id == MATCH_YES);
|
|
|
/* if we get here we were successful */
|
/* if we get here we were successful */
|
return SUCCESS;
|
return SUCCESS;
|
}
|
}
|
|
|
|
|
/* Try and match a BIND(C) attribute specification statement. */
|
/* Try and match a BIND(C) attribute specification statement. */
|
|
|
match
|
match
|
gfc_match_bind_c_stmt (void)
|
gfc_match_bind_c_stmt (void)
|
{
|
{
|
match found_match = MATCH_NO;
|
match found_match = MATCH_NO;
|
gfc_typespec *ts;
|
gfc_typespec *ts;
|
|
|
ts = ¤t_ts;
|
ts = ¤t_ts;
|
|
|
/* This may not be necessary. */
|
/* This may not be necessary. */
|
gfc_clear_ts (ts);
|
gfc_clear_ts (ts);
|
/* Clear the temporary binding label holder. */
|
/* Clear the temporary binding label holder. */
|
curr_binding_label[0] = '\0';
|
curr_binding_label[0] = '\0';
|
|
|
/* Look for the bind(c). */
|
/* Look for the bind(c). */
|
found_match = gfc_match_bind_c (NULL, true);
|
found_match = gfc_match_bind_c (NULL, true);
|
|
|
if (found_match == MATCH_YES)
|
if (found_match == MATCH_YES)
|
{
|
{
|
/* Look for the :: now, but it is not required. */
|
/* Look for the :: now, but it is not required. */
|
gfc_match (" :: ");
|
gfc_match (" :: ");
|
|
|
/* Get the identifier(s) that needs to be updated. This may need to
|
/* Get the identifier(s) that needs to be updated. This may need to
|
change to hand the flag(s) for the attr specified so all identifiers
|
change to hand the flag(s) for the attr specified so all identifiers
|
found can have all appropriate parts updated (assuming that the same
|
found can have all appropriate parts updated (assuming that the same
|
spec stmt can have multiple attrs, such as both bind(c) and
|
spec stmt can have multiple attrs, such as both bind(c) and
|
allocatable...). */
|
allocatable...). */
|
if (get_bind_c_idents () != SUCCESS)
|
if (get_bind_c_idents () != SUCCESS)
|
/* Error message should have printed already. */
|
/* Error message should have printed already. */
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
return found_match;
|
return found_match;
|
}
|
}
|
|
|
|
|
/* Match a data declaration statement. */
|
/* Match a data declaration statement. */
|
|
|
match
|
match
|
gfc_match_data_decl (void)
|
gfc_match_data_decl (void)
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
int elem;
|
int elem;
|
|
|
num_idents_on_line = 0;
|
num_idents_on_line = 0;
|
|
|
m = gfc_match_decl_type_spec (¤t_ts, 0);
|
m = gfc_match_decl_type_spec (¤t_ts, 0);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
|
if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
|
&& gfc_current_state () != COMP_DERIVED)
|
&& gfc_current_state () != COMP_DERIVED)
|
{
|
{
|
sym = gfc_use_derived (current_ts.u.derived);
|
sym = gfc_use_derived (current_ts.u.derived);
|
|
|
if (sym == NULL)
|
if (sym == NULL)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
current_ts.u.derived = sym;
|
current_ts.u.derived = sym;
|
}
|
}
|
|
|
m = match_attr_spec ();
|
m = match_attr_spec ();
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
{
|
{
|
m = MATCH_NO;
|
m = MATCH_NO;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
|
if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
|
&& current_ts.u.derived->components == NULL
|
&& current_ts.u.derived->components == NULL
|
&& !current_ts.u.derived->attr.zero_comp)
|
&& !current_ts.u.derived->attr.zero_comp)
|
{
|
{
|
|
|
if (current_attr.pointer && gfc_current_state () == COMP_DERIVED)
|
if (current_attr.pointer && gfc_current_state () == COMP_DERIVED)
|
goto ok;
|
goto ok;
|
|
|
gfc_find_symbol (current_ts.u.derived->name,
|
gfc_find_symbol (current_ts.u.derived->name,
|
current_ts.u.derived->ns->parent, 1, &sym);
|
current_ts.u.derived->ns->parent, 1, &sym);
|
|
|
/* Any symbol that we find had better be a type definition
|
/* Any symbol that we find had better be a type definition
|
which has its components defined. */
|
which has its components defined. */
|
if (sym != NULL && sym->attr.flavor == FL_DERIVED
|
if (sym != NULL && sym->attr.flavor == FL_DERIVED
|
&& (current_ts.u.derived->components != NULL
|
&& (current_ts.u.derived->components != NULL
|
|| current_ts.u.derived->attr.zero_comp))
|
|| current_ts.u.derived->attr.zero_comp))
|
goto ok;
|
goto ok;
|
|
|
/* Now we have an error, which we signal, and then fix up
|
/* Now we have an error, which we signal, and then fix up
|
because the knock-on is plain and simple confusing. */
|
because the knock-on is plain and simple confusing. */
|
gfc_error_now ("Derived type at %C has not been previously defined "
|
gfc_error_now ("Derived type at %C has not been previously defined "
|
"and so cannot appear in a derived type definition");
|
"and so cannot appear in a derived type definition");
|
current_attr.pointer = 1;
|
current_attr.pointer = 1;
|
goto ok;
|
goto ok;
|
}
|
}
|
|
|
ok:
|
ok:
|
/* If we have an old-style character declaration, and no new-style
|
/* If we have an old-style character declaration, and no new-style
|
attribute specifications, then there a comma is optional between
|
attribute specifications, then there a comma is optional between
|
the type specification and the variable list. */
|
the type specification and the variable list. */
|
if (m == MATCH_NO && current_ts.type == BT_CHARACTER && old_char_selector)
|
if (m == MATCH_NO && current_ts.type == BT_CHARACTER && old_char_selector)
|
gfc_match_char (',');
|
gfc_match_char (',');
|
|
|
/* Give the types/attributes to symbols that follow. Give the element
|
/* Give the types/attributes to symbols that follow. Give the element
|
a number so that repeat character length expressions can be copied. */
|
a number so that repeat character length expressions can be copied. */
|
elem = 1;
|
elem = 1;
|
for (;;)
|
for (;;)
|
{
|
{
|
num_idents_on_line++;
|
num_idents_on_line++;
|
m = variable_decl (elem++);
|
m = variable_decl (elem++);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
break;
|
break;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
break;
|
break;
|
}
|
}
|
|
|
if (gfc_error_flag_test () == 0)
|
if (gfc_error_flag_test () == 0)
|
gfc_error ("Syntax error in data declaration at %C");
|
gfc_error ("Syntax error in data declaration at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
|
|
gfc_free_data_all (gfc_current_ns);
|
gfc_free_data_all (gfc_current_ns);
|
|
|
cleanup:
|
cleanup:
|
gfc_free_array_spec (current_as);
|
gfc_free_array_spec (current_as);
|
current_as = NULL;
|
current_as = NULL;
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match a prefix associated with a function or subroutine
|
/* Match a prefix associated with a function or subroutine
|
declaration. If the typespec pointer is nonnull, then a typespec
|
declaration. If the typespec pointer is nonnull, then a typespec
|
can be matched. Note that if nothing matches, MATCH_YES is
|
can be matched. Note that if nothing matches, MATCH_YES is
|
returned (the null string was matched). */
|
returned (the null string was matched). */
|
|
|
match
|
match
|
gfc_match_prefix (gfc_typespec *ts)
|
gfc_match_prefix (gfc_typespec *ts)
|
{
|
{
|
bool seen_type;
|
bool seen_type;
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
seen_type = 0;
|
seen_type = 0;
|
|
|
gcc_assert (!gfc_matching_prefix);
|
gcc_assert (!gfc_matching_prefix);
|
gfc_matching_prefix = true;
|
gfc_matching_prefix = true;
|
|
|
loop:
|
loop:
|
if (!seen_type && ts != NULL
|
if (!seen_type && ts != NULL
|
&& gfc_match_decl_type_spec (ts, 0) == MATCH_YES
|
&& gfc_match_decl_type_spec (ts, 0) == MATCH_YES
|
&& gfc_match_space () == MATCH_YES)
|
&& gfc_match_space () == MATCH_YES)
|
{
|
{
|
|
|
seen_type = 1;
|
seen_type = 1;
|
goto loop;
|
goto loop;
|
}
|
}
|
|
|
if (gfc_match ("elemental% ") == MATCH_YES)
|
if (gfc_match ("elemental% ") == MATCH_YES)
|
{
|
{
|
if (gfc_add_elemental (¤t_attr, NULL) == FAILURE)
|
if (gfc_add_elemental (¤t_attr, NULL) == FAILURE)
|
goto error;
|
goto error;
|
|
|
goto loop;
|
goto loop;
|
}
|
}
|
|
|
if (gfc_match ("pure% ") == MATCH_YES)
|
if (gfc_match ("pure% ") == MATCH_YES)
|
{
|
{
|
if (gfc_add_pure (¤t_attr, NULL) == FAILURE)
|
if (gfc_add_pure (¤t_attr, NULL) == FAILURE)
|
goto error;
|
goto error;
|
|
|
goto loop;
|
goto loop;
|
}
|
}
|
|
|
if (gfc_match ("recursive% ") == MATCH_YES)
|
if (gfc_match ("recursive% ") == MATCH_YES)
|
{
|
{
|
if (gfc_add_recursive (¤t_attr, NULL) == FAILURE)
|
if (gfc_add_recursive (¤t_attr, NULL) == FAILURE)
|
goto error;
|
goto error;
|
|
|
goto loop;
|
goto loop;
|
}
|
}
|
|
|
/* At this point, the next item is not a prefix. */
|
/* At this point, the next item is not a prefix. */
|
gcc_assert (gfc_matching_prefix);
|
gcc_assert (gfc_matching_prefix);
|
gfc_matching_prefix = false;
|
gfc_matching_prefix = false;
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
error:
|
error:
|
gcc_assert (gfc_matching_prefix);
|
gcc_assert (gfc_matching_prefix);
|
gfc_matching_prefix = false;
|
gfc_matching_prefix = false;
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Copy attributes matched by gfc_match_prefix() to attributes on a symbol. */
|
/* Copy attributes matched by gfc_match_prefix() to attributes on a symbol. */
|
|
|
static gfc_try
|
static gfc_try
|
copy_prefix (symbol_attribute *dest, locus *where)
|
copy_prefix (symbol_attribute *dest, locus *where)
|
{
|
{
|
if (current_attr.pure && gfc_add_pure (dest, where) == FAILURE)
|
if (current_attr.pure && gfc_add_pure (dest, where) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
if (current_attr.elemental && gfc_add_elemental (dest, where) == FAILURE)
|
if (current_attr.elemental && gfc_add_elemental (dest, where) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
if (current_attr.recursive && gfc_add_recursive (dest, where) == FAILURE)
|
if (current_attr.recursive && gfc_add_recursive (dest, where) == FAILURE)
|
return FAILURE;
|
return FAILURE;
|
|
|
return SUCCESS;
|
return SUCCESS;
|
}
|
}
|
|
|
|
|
/* Match a formal argument list. */
|
/* Match a formal argument list. */
|
|
|
match
|
match
|
gfc_match_formal_arglist (gfc_symbol *progname, int st_flag, int null_flag)
|
gfc_match_formal_arglist (gfc_symbol *progname, int st_flag, int null_flag)
|
{
|
{
|
gfc_formal_arglist *head, *tail, *p, *q;
|
gfc_formal_arglist *head, *tail, *p, *q;
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
|
|
head = tail = NULL;
|
head = tail = NULL;
|
|
|
if (gfc_match_char ('(') != MATCH_YES)
|
if (gfc_match_char ('(') != MATCH_YES)
|
{
|
{
|
if (null_flag)
|
if (null_flag)
|
goto ok;
|
goto ok;
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
|
|
if (gfc_match_char (')') == MATCH_YES)
|
if (gfc_match_char (')') == MATCH_YES)
|
goto ok;
|
goto ok;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
if (gfc_match_char ('*') == MATCH_YES)
|
if (gfc_match_char ('*') == MATCH_YES)
|
sym = NULL;
|
sym = NULL;
|
else
|
else
|
{
|
{
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
if (gfc_get_symbol (name, NULL, &sym))
|
if (gfc_get_symbol (name, NULL, &sym))
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
p = gfc_get_formal_arglist ();
|
p = gfc_get_formal_arglist ();
|
|
|
if (head == NULL)
|
if (head == NULL)
|
head = tail = p;
|
head = tail = p;
|
else
|
else
|
{
|
{
|
tail->next = p;
|
tail->next = p;
|
tail = p;
|
tail = p;
|
}
|
}
|
|
|
tail->sym = sym;
|
tail->sym = sym;
|
|
|
/* We don't add the VARIABLE flavor because the name could be a
|
/* We don't add the VARIABLE flavor because the name could be a
|
dummy procedure. We don't apply these attributes to formal
|
dummy procedure. We don't apply these attributes to formal
|
arguments of statement functions. */
|
arguments of statement functions. */
|
if (sym != NULL && !st_flag
|
if (sym != NULL && !st_flag
|
&& (gfc_add_dummy (&sym->attr, sym->name, NULL) == FAILURE
|
&& (gfc_add_dummy (&sym->attr, sym->name, NULL) == FAILURE
|
|| gfc_missing_attr (&sym->attr, NULL) == FAILURE))
|
|| gfc_missing_attr (&sym->attr, NULL) == FAILURE))
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* The name of a program unit can be in a different namespace,
|
/* The name of a program unit can be in a different namespace,
|
so check for it explicitly. After the statement is accepted,
|
so check for it explicitly. After the statement is accepted,
|
the name is checked for especially in gfc_get_symbol(). */
|
the name is checked for especially in gfc_get_symbol(). */
|
if (gfc_new_block != NULL && sym != NULL
|
if (gfc_new_block != NULL && sym != NULL
|
&& strcmp (sym->name, gfc_new_block->name) == 0)
|
&& strcmp (sym->name, gfc_new_block->name) == 0)
|
{
|
{
|
gfc_error ("Name '%s' at %C is the name of the procedure",
|
gfc_error ("Name '%s' at %C is the name of the procedure",
|
sym->name);
|
sym->name);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (gfc_match_char (')') == MATCH_YES)
|
if (gfc_match_char (')') == MATCH_YES)
|
goto ok;
|
goto ok;
|
|
|
m = gfc_match_char (',');
|
m = gfc_match_char (',');
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_error ("Unexpected junk in formal argument list at %C");
|
gfc_error ("Unexpected junk in formal argument list at %C");
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
ok:
|
ok:
|
/* Check for duplicate symbols in the formal argument list. */
|
/* Check for duplicate symbols in the formal argument list. */
|
if (head != NULL)
|
if (head != NULL)
|
{
|
{
|
for (p = head; p->next; p = p->next)
|
for (p = head; p->next; p = p->next)
|
{
|
{
|
if (p->sym == NULL)
|
if (p->sym == NULL)
|
continue;
|
continue;
|
|
|
for (q = p->next; q; q = q->next)
|
for (q = p->next; q; q = q->next)
|
if (p->sym == q->sym)
|
if (p->sym == q->sym)
|
{
|
{
|
gfc_error ("Duplicate symbol '%s' in formal argument list "
|
gfc_error ("Duplicate symbol '%s' in formal argument list "
|
"at %C", p->sym->name);
|
"at %C", p->sym->name);
|
|
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (gfc_add_explicit_interface (progname, IFSRC_DECL, head, NULL)
|
if (gfc_add_explicit_interface (progname, IFSRC_DECL, head, NULL)
|
== FAILURE)
|
== FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
cleanup:
|
cleanup:
|
gfc_free_formal_arglist (head);
|
gfc_free_formal_arglist (head);
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match a RESULT specification following a function declaration or
|
/* Match a RESULT specification following a function declaration or
|
ENTRY statement. Also matches the end-of-statement. */
|
ENTRY statement. Also matches the end-of-statement. */
|
|
|
static match
|
static match
|
match_result (gfc_symbol *function, gfc_symbol **result)
|
match_result (gfc_symbol *function, gfc_symbol **result)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol *r;
|
gfc_symbol *r;
|
match m;
|
match m;
|
|
|
if (gfc_match (" result (") != MATCH_YES)
|
if (gfc_match (" result (") != MATCH_YES)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
/* Get the right paren, and that's it because there could be the
|
/* Get the right paren, and that's it because there could be the
|
bind(c) attribute after the result clause. */
|
bind(c) attribute after the result clause. */
|
if (gfc_match_char(')') != MATCH_YES)
|
if (gfc_match_char(')') != MATCH_YES)
|
{
|
{
|
/* TODO: should report the missing right paren here. */
|
/* TODO: should report the missing right paren here. */
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (strcmp (function->name, name) == 0)
|
if (strcmp (function->name, name) == 0)
|
{
|
{
|
gfc_error ("RESULT variable at %C must be different than function name");
|
gfc_error ("RESULT variable at %C must be different than function name");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_get_symbol (name, NULL, &r))
|
if (gfc_get_symbol (name, NULL, &r))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_result (&r->attr, r->name, NULL) == FAILURE)
|
if (gfc_add_result (&r->attr, r->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
*result = r;
|
*result = r;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a function suffix, which could be a combination of a result
|
/* Match a function suffix, which could be a combination of a result
|
clause and BIND(C), either one, or neither. The draft does not
|
clause and BIND(C), either one, or neither. The draft does not
|
require them to come in a specific order. */
|
require them to come in a specific order. */
|
|
|
match
|
match
|
gfc_match_suffix (gfc_symbol *sym, gfc_symbol **result)
|
gfc_match_suffix (gfc_symbol *sym, gfc_symbol **result)
|
{
|
{
|
match is_bind_c; /* Found bind(c). */
|
match is_bind_c; /* Found bind(c). */
|
match is_result; /* Found result clause. */
|
match is_result; /* Found result clause. */
|
match found_match; /* Status of whether we've found a good match. */
|
match found_match; /* Status of whether we've found a good match. */
|
char peek_char; /* Character we're going to peek at. */
|
char peek_char; /* Character we're going to peek at. */
|
bool allow_binding_name;
|
bool allow_binding_name;
|
|
|
/* Initialize to having found nothing. */
|
/* Initialize to having found nothing. */
|
found_match = MATCH_NO;
|
found_match = MATCH_NO;
|
is_bind_c = MATCH_NO;
|
is_bind_c = MATCH_NO;
|
is_result = MATCH_NO;
|
is_result = MATCH_NO;
|
|
|
/* Get the next char to narrow between result and bind(c). */
|
/* Get the next char to narrow between result and bind(c). */
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
peek_char = gfc_peek_ascii_char ();
|
peek_char = gfc_peek_ascii_char ();
|
|
|
/* C binding names are not allowed for internal procedures. */
|
/* C binding names are not allowed for internal procedures. */
|
if (gfc_current_state () == COMP_CONTAINS
|
if (gfc_current_state () == COMP_CONTAINS
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE)
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE)
|
allow_binding_name = false;
|
allow_binding_name = false;
|
else
|
else
|
allow_binding_name = true;
|
allow_binding_name = true;
|
|
|
switch (peek_char)
|
switch (peek_char)
|
{
|
{
|
case 'r':
|
case 'r':
|
/* Look for result clause. */
|
/* Look for result clause. */
|
is_result = match_result (sym, result);
|
is_result = match_result (sym, result);
|
if (is_result == MATCH_YES)
|
if (is_result == MATCH_YES)
|
{
|
{
|
/* Now see if there is a bind(c) after it. */
|
/* Now see if there is a bind(c) after it. */
|
is_bind_c = gfc_match_bind_c (sym, allow_binding_name);
|
is_bind_c = gfc_match_bind_c (sym, allow_binding_name);
|
/* We've found the result clause and possibly bind(c). */
|
/* We've found the result clause and possibly bind(c). */
|
found_match = MATCH_YES;
|
found_match = MATCH_YES;
|
}
|
}
|
else
|
else
|
/* This should only be MATCH_ERROR. */
|
/* This should only be MATCH_ERROR. */
|
found_match = is_result;
|
found_match = is_result;
|
break;
|
break;
|
case 'b':
|
case 'b':
|
/* Look for bind(c) first. */
|
/* Look for bind(c) first. */
|
is_bind_c = gfc_match_bind_c (sym, allow_binding_name);
|
is_bind_c = gfc_match_bind_c (sym, allow_binding_name);
|
if (is_bind_c == MATCH_YES)
|
if (is_bind_c == MATCH_YES)
|
{
|
{
|
/* Now see if a result clause followed it. */
|
/* Now see if a result clause followed it. */
|
is_result = match_result (sym, result);
|
is_result = match_result (sym, result);
|
found_match = MATCH_YES;
|
found_match = MATCH_YES;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Should only be a MATCH_ERROR if we get here after seeing 'b'. */
|
/* Should only be a MATCH_ERROR if we get here after seeing 'b'. */
|
found_match = MATCH_ERROR;
|
found_match = MATCH_ERROR;
|
}
|
}
|
break;
|
break;
|
default:
|
default:
|
gfc_error ("Unexpected junk after function declaration at %C");
|
gfc_error ("Unexpected junk after function declaration at %C");
|
found_match = MATCH_ERROR;
|
found_match = MATCH_ERROR;
|
break;
|
break;
|
}
|
}
|
|
|
if (is_bind_c == MATCH_YES)
|
if (is_bind_c == MATCH_YES)
|
{
|
{
|
/* Fortran 2008 draft allows BIND(C) for internal procedures. */
|
/* Fortran 2008 draft allows BIND(C) for internal procedures. */
|
if (gfc_current_state () == COMP_CONTAINS
|
if (gfc_current_state () == COMP_CONTAINS
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE
|
&& gfc_notify_std (GFC_STD_F2008, "Fortran 2008: BIND(C) attribute "
|
&& gfc_notify_std (GFC_STD_F2008, "Fortran 2008: BIND(C) attribute "
|
"at %L may not be specified for an internal "
|
"at %L may not be specified for an internal "
|
"procedure", &gfc_current_locus)
|
"procedure", &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_is_bind_c (&(sym->attr), sym->name, &gfc_current_locus, 1)
|
if (gfc_add_is_bind_c (&(sym->attr), sym->name, &gfc_current_locus, 1)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
return found_match;
|
return found_match;
|
}
|
}
|
|
|
|
|
/* Procedure pointer return value without RESULT statement:
|
/* Procedure pointer return value without RESULT statement:
|
Add "hidden" result variable named "ppr@". */
|
Add "hidden" result variable named "ppr@". */
|
|
|
static gfc_try
|
static gfc_try
|
add_hidden_procptr_result (gfc_symbol *sym)
|
add_hidden_procptr_result (gfc_symbol *sym)
|
{
|
{
|
bool case1,case2;
|
bool case1,case2;
|
|
|
if (gfc_notification_std (GFC_STD_F2003) == ERROR)
|
if (gfc_notification_std (GFC_STD_F2003) == ERROR)
|
return FAILURE;
|
return FAILURE;
|
|
|
/* First usage case: PROCEDURE and EXTERNAL statements. */
|
/* First usage case: PROCEDURE and EXTERNAL statements. */
|
case1 = gfc_current_state () == COMP_FUNCTION && gfc_current_block ()
|
case1 = gfc_current_state () == COMP_FUNCTION && gfc_current_block ()
|
&& strcmp (gfc_current_block ()->name, sym->name) == 0
|
&& strcmp (gfc_current_block ()->name, sym->name) == 0
|
&& sym->attr.external;
|
&& sym->attr.external;
|
/* Second usage case: INTERFACE statements. */
|
/* Second usage case: INTERFACE statements. */
|
case2 = gfc_current_state () == COMP_INTERFACE && gfc_state_stack->previous
|
case2 = gfc_current_state () == COMP_INTERFACE && gfc_state_stack->previous
|
&& gfc_state_stack->previous->state == COMP_FUNCTION
|
&& gfc_state_stack->previous->state == COMP_FUNCTION
|
&& strcmp (gfc_state_stack->previous->sym->name, sym->name) == 0;
|
&& strcmp (gfc_state_stack->previous->sym->name, sym->name) == 0;
|
|
|
if (case1 || case2)
|
if (case1 || case2)
|
{
|
{
|
gfc_symtree *stree;
|
gfc_symtree *stree;
|
if (case1)
|
if (case1)
|
gfc_get_sym_tree ("ppr@", gfc_current_ns, &stree, false);
|
gfc_get_sym_tree ("ppr@", gfc_current_ns, &stree, false);
|
else if (case2)
|
else if (case2)
|
{
|
{
|
gfc_symtree *st2;
|
gfc_symtree *st2;
|
gfc_get_sym_tree ("ppr@", gfc_current_ns->parent, &stree, false);
|
gfc_get_sym_tree ("ppr@", gfc_current_ns->parent, &stree, false);
|
st2 = gfc_new_symtree (&gfc_current_ns->sym_root, "ppr@");
|
st2 = gfc_new_symtree (&gfc_current_ns->sym_root, "ppr@");
|
st2->n.sym = stree->n.sym;
|
st2->n.sym = stree->n.sym;
|
}
|
}
|
sym->result = stree->n.sym;
|
sym->result = stree->n.sym;
|
|
|
sym->result->attr.proc_pointer = sym->attr.proc_pointer;
|
sym->result->attr.proc_pointer = sym->attr.proc_pointer;
|
sym->result->attr.pointer = sym->attr.pointer;
|
sym->result->attr.pointer = sym->attr.pointer;
|
sym->result->attr.external = sym->attr.external;
|
sym->result->attr.external = sym->attr.external;
|
sym->result->attr.referenced = sym->attr.referenced;
|
sym->result->attr.referenced = sym->attr.referenced;
|
sym->result->ts = sym->ts;
|
sym->result->ts = sym->ts;
|
sym->attr.proc_pointer = 0;
|
sym->attr.proc_pointer = 0;
|
sym->attr.pointer = 0;
|
sym->attr.pointer = 0;
|
sym->attr.external = 0;
|
sym->attr.external = 0;
|
if (sym->result->attr.external && sym->result->attr.pointer)
|
if (sym->result->attr.external && sym->result->attr.pointer)
|
{
|
{
|
sym->result->attr.pointer = 0;
|
sym->result->attr.pointer = 0;
|
sym->result->attr.proc_pointer = 1;
|
sym->result->attr.proc_pointer = 1;
|
}
|
}
|
|
|
return gfc_add_result (&sym->result->attr, sym->result->name, NULL);
|
return gfc_add_result (&sym->result->attr, sym->result->name, NULL);
|
}
|
}
|
/* POINTER after PROCEDURE/EXTERNAL/INTERFACE statement. */
|
/* POINTER after PROCEDURE/EXTERNAL/INTERFACE statement. */
|
else if (sym->attr.function && !sym->attr.external && sym->attr.pointer
|
else if (sym->attr.function && !sym->attr.external && sym->attr.pointer
|
&& sym->result && sym->result != sym && sym->result->attr.external
|
&& sym->result && sym->result != sym && sym->result->attr.external
|
&& sym == gfc_current_ns->proc_name
|
&& sym == gfc_current_ns->proc_name
|
&& sym == sym->result->ns->proc_name
|
&& sym == sym->result->ns->proc_name
|
&& strcmp ("ppr@", sym->result->name) == 0)
|
&& strcmp ("ppr@", sym->result->name) == 0)
|
{
|
{
|
sym->result->attr.proc_pointer = 1;
|
sym->result->attr.proc_pointer = 1;
|
sym->attr.pointer = 0;
|
sym->attr.pointer = 0;
|
return SUCCESS;
|
return SUCCESS;
|
}
|
}
|
else
|
else
|
return FAILURE;
|
return FAILURE;
|
}
|
}
|
|
|
|
|
/* Match the interface for a PROCEDURE declaration,
|
/* Match the interface for a PROCEDURE declaration,
|
including brackets (R1212). */
|
including brackets (R1212). */
|
|
|
static match
|
static match
|
match_procedure_interface (gfc_symbol **proc_if)
|
match_procedure_interface (gfc_symbol **proc_if)
|
{
|
{
|
match m;
|
match m;
|
gfc_symtree *st;
|
gfc_symtree *st;
|
locus old_loc, entry_loc;
|
locus old_loc, entry_loc;
|
gfc_namespace *old_ns = gfc_current_ns;
|
gfc_namespace *old_ns = gfc_current_ns;
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
|
|
old_loc = entry_loc = gfc_current_locus;
|
old_loc = entry_loc = gfc_current_locus;
|
gfc_clear_ts (¤t_ts);
|
gfc_clear_ts (¤t_ts);
|
|
|
if (gfc_match (" (") != MATCH_YES)
|
if (gfc_match (" (") != MATCH_YES)
|
{
|
{
|
gfc_current_locus = entry_loc;
|
gfc_current_locus = entry_loc;
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
|
|
/* Get the type spec. for the procedure interface. */
|
/* Get the type spec. for the procedure interface. */
|
old_loc = gfc_current_locus;
|
old_loc = gfc_current_locus;
|
m = gfc_match_decl_type_spec (¤t_ts, 0);
|
m = gfc_match_decl_type_spec (¤t_ts, 0);
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
if (m == MATCH_YES || (m == MATCH_NO && gfc_peek_ascii_char () == ')'))
|
if (m == MATCH_YES || (m == MATCH_NO && gfc_peek_ascii_char () == ')'))
|
goto got_ts;
|
goto got_ts;
|
|
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
/* Procedure interface is itself a procedure. */
|
/* Procedure interface is itself a procedure. */
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
|
|
/* First look to see if it is already accessible in the current
|
/* First look to see if it is already accessible in the current
|
namespace because it is use associated or contained. */
|
namespace because it is use associated or contained. */
|
st = NULL;
|
st = NULL;
|
if (gfc_find_sym_tree (name, NULL, 0, &st))
|
if (gfc_find_sym_tree (name, NULL, 0, &st))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* If it is still not found, then try the parent namespace, if it
|
/* If it is still not found, then try the parent namespace, if it
|
exists and create the symbol there if it is still not found. */
|
exists and create the symbol there if it is still not found. */
|
if (gfc_current_ns->parent)
|
if (gfc_current_ns->parent)
|
gfc_current_ns = gfc_current_ns->parent;
|
gfc_current_ns = gfc_current_ns->parent;
|
if (st == NULL && gfc_get_ha_sym_tree (name, &st))
|
if (st == NULL && gfc_get_ha_sym_tree (name, &st))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
gfc_current_ns = old_ns;
|
gfc_current_ns = old_ns;
|
*proc_if = st->n.sym;
|
*proc_if = st->n.sym;
|
|
|
/* Various interface checks. */
|
/* Various interface checks. */
|
if (*proc_if)
|
if (*proc_if)
|
{
|
{
|
(*proc_if)->refs++;
|
(*proc_if)->refs++;
|
/* Resolve interface if possible. That way, attr.procedure is only set
|
/* Resolve interface if possible. That way, attr.procedure is only set
|
if it is declared by a later procedure-declaration-stmt, which is
|
if it is declared by a later procedure-declaration-stmt, which is
|
invalid per C1212. */
|
invalid per C1212. */
|
while ((*proc_if)->ts.interface)
|
while ((*proc_if)->ts.interface)
|
*proc_if = (*proc_if)->ts.interface;
|
*proc_if = (*proc_if)->ts.interface;
|
|
|
if ((*proc_if)->generic)
|
if ((*proc_if)->generic)
|
{
|
{
|
gfc_error ("Interface '%s' at %C may not be generic",
|
gfc_error ("Interface '%s' at %C may not be generic",
|
(*proc_if)->name);
|
(*proc_if)->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
if ((*proc_if)->attr.proc == PROC_ST_FUNCTION)
|
if ((*proc_if)->attr.proc == PROC_ST_FUNCTION)
|
{
|
{
|
gfc_error ("Interface '%s' at %C may not be a statement function",
|
gfc_error ("Interface '%s' at %C may not be a statement function",
|
(*proc_if)->name);
|
(*proc_if)->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
/* Handle intrinsic procedures. */
|
/* Handle intrinsic procedures. */
|
if (!((*proc_if)->attr.external || (*proc_if)->attr.use_assoc
|
if (!((*proc_if)->attr.external || (*proc_if)->attr.use_assoc
|
|| (*proc_if)->attr.if_source == IFSRC_IFBODY)
|
|| (*proc_if)->attr.if_source == IFSRC_IFBODY)
|
&& (gfc_is_intrinsic ((*proc_if), 0, gfc_current_locus)
|
&& (gfc_is_intrinsic ((*proc_if), 0, gfc_current_locus)
|
|| gfc_is_intrinsic ((*proc_if), 1, gfc_current_locus)))
|
|| gfc_is_intrinsic ((*proc_if), 1, gfc_current_locus)))
|
(*proc_if)->attr.intrinsic = 1;
|
(*proc_if)->attr.intrinsic = 1;
|
if ((*proc_if)->attr.intrinsic
|
if ((*proc_if)->attr.intrinsic
|
&& !gfc_intrinsic_actual_ok ((*proc_if)->name, 0))
|
&& !gfc_intrinsic_actual_ok ((*proc_if)->name, 0))
|
{
|
{
|
gfc_error ("Intrinsic procedure '%s' not allowed "
|
gfc_error ("Intrinsic procedure '%s' not allowed "
|
"in PROCEDURE statement at %C", (*proc_if)->name);
|
"in PROCEDURE statement at %C", (*proc_if)->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
}
|
}
|
|
|
got_ts:
|
got_ts:
|
if (gfc_match (" )") != MATCH_YES)
|
if (gfc_match (" )") != MATCH_YES)
|
{
|
{
|
gfc_current_locus = entry_loc;
|
gfc_current_locus = entry_loc;
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a PROCEDURE declaration (R1211). */
|
/* Match a PROCEDURE declaration (R1211). */
|
|
|
static match
|
static match
|
match_procedure_decl (void)
|
match_procedure_decl (void)
|
{
|
{
|
match m;
|
match m;
|
gfc_symbol *sym, *proc_if = NULL;
|
gfc_symbol *sym, *proc_if = NULL;
|
int num;
|
int num;
|
gfc_expr *initializer = NULL;
|
gfc_expr *initializer = NULL;
|
|
|
/* Parse interface (with brackets). */
|
/* Parse interface (with brackets). */
|
m = match_procedure_interface (&proc_if);
|
m = match_procedure_interface (&proc_if);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
/* Parse attributes (with colons). */
|
/* Parse attributes (with colons). */
|
m = match_attr_spec();
|
m = match_attr_spec();
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Get procedure symbols. */
|
/* Get procedure symbols. */
|
for(num=1;;num++)
|
for(num=1;;num++)
|
{
|
{
|
m = gfc_match_symbol (&sym, 0);
|
m = gfc_match_symbol (&sym, 0);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
else if (m == MATCH_ERROR)
|
else if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
/* Add current_attr to the symbol attributes. */
|
/* Add current_attr to the symbol attributes. */
|
if (gfc_copy_attr (&sym->attr, ¤t_attr, NULL) == FAILURE)
|
if (gfc_copy_attr (&sym->attr, ¤t_attr, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (sym->attr.is_bind_c)
|
if (sym->attr.is_bind_c)
|
{
|
{
|
/* Check for C1218. */
|
/* Check for C1218. */
|
if (!proc_if || !proc_if->attr.is_bind_c)
|
if (!proc_if || !proc_if->attr.is_bind_c)
|
{
|
{
|
gfc_error ("BIND(C) attribute at %C requires "
|
gfc_error ("BIND(C) attribute at %C requires "
|
"an interface with BIND(C)");
|
"an interface with BIND(C)");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
/* Check for C1217. */
|
/* Check for C1217. */
|
if (has_name_equals && sym->attr.pointer)
|
if (has_name_equals && sym->attr.pointer)
|
{
|
{
|
gfc_error ("BIND(C) procedure with NAME may not have "
|
gfc_error ("BIND(C) procedure with NAME may not have "
|
"POINTER attribute at %C");
|
"POINTER attribute at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
if (has_name_equals && sym->attr.dummy)
|
if (has_name_equals && sym->attr.dummy)
|
{
|
{
|
gfc_error ("Dummy procedure at %C may not have "
|
gfc_error ("Dummy procedure at %C may not have "
|
"BIND(C) attribute with NAME");
|
"BIND(C) attribute with NAME");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
/* Set binding label for BIND(C). */
|
/* Set binding label for BIND(C). */
|
if (set_binding_label (sym->binding_label, sym->name, num) != SUCCESS)
|
if (set_binding_label (sym->binding_label, sym->name, num) != SUCCESS)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_add_external (&sym->attr, NULL) == FAILURE)
|
if (gfc_add_external (&sym->attr, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (add_hidden_procptr_result (sym) == SUCCESS)
|
if (add_hidden_procptr_result (sym) == SUCCESS)
|
sym = sym->result;
|
sym = sym->result;
|
|
|
if (gfc_add_proc (&sym->attr, sym->name, NULL) == FAILURE)
|
if (gfc_add_proc (&sym->attr, sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Set interface. */
|
/* Set interface. */
|
if (proc_if != NULL)
|
if (proc_if != NULL)
|
{
|
{
|
if (sym->ts.type != BT_UNKNOWN)
|
if (sym->ts.type != BT_UNKNOWN)
|
{
|
{
|
gfc_error ("Procedure '%s' at %L already has basic type of %s",
|
gfc_error ("Procedure '%s' at %L already has basic type of %s",
|
sym->name, &gfc_current_locus,
|
sym->name, &gfc_current_locus,
|
gfc_basic_typename (sym->ts.type));
|
gfc_basic_typename (sym->ts.type));
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
sym->ts.interface = proc_if;
|
sym->ts.interface = proc_if;
|
sym->attr.untyped = 1;
|
sym->attr.untyped = 1;
|
sym->attr.if_source = IFSRC_IFBODY;
|
sym->attr.if_source = IFSRC_IFBODY;
|
}
|
}
|
else if (current_ts.type != BT_UNKNOWN)
|
else if (current_ts.type != BT_UNKNOWN)
|
{
|
{
|
if (gfc_add_type (sym, ¤t_ts, &gfc_current_locus) == FAILURE)
|
if (gfc_add_type (sym, ¤t_ts, &gfc_current_locus) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
sym->ts.interface = gfc_new_symbol ("", gfc_current_ns);
|
sym->ts.interface = gfc_new_symbol ("", gfc_current_ns);
|
sym->ts.interface->ts = current_ts;
|
sym->ts.interface->ts = current_ts;
|
sym->ts.interface->attr.function = 1;
|
sym->ts.interface->attr.function = 1;
|
sym->attr.function = sym->ts.interface->attr.function;
|
sym->attr.function = sym->ts.interface->attr.function;
|
sym->attr.if_source = IFSRC_UNKNOWN;
|
sym->attr.if_source = IFSRC_UNKNOWN;
|
}
|
}
|
|
|
if (gfc_match (" =>") == MATCH_YES)
|
if (gfc_match (" =>") == MATCH_YES)
|
{
|
{
|
if (!current_attr.pointer)
|
if (!current_attr.pointer)
|
{
|
{
|
gfc_error ("Initialization at %C isn't for a pointer variable");
|
gfc_error ("Initialization at %C isn't for a pointer variable");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
m = gfc_match_null (&initializer);
|
m = gfc_match_null (&initializer);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Pointer initialization requires a NULL() at %C");
|
gfc_error ("Pointer initialization requires a NULL() at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_pure (NULL))
|
if (gfc_pure (NULL))
|
{
|
{
|
gfc_error ("Initialization of pointer at %C is not allowed in "
|
gfc_error ("Initialization of pointer at %C is not allowed in "
|
"a PURE procedure");
|
"a PURE procedure");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
if (add_init_expr_to_sym (sym->name, &initializer, &gfc_current_locus)
|
if (add_init_expr_to_sym (sym->name, &initializer, &gfc_current_locus)
|
!= SUCCESS)
|
!= SUCCESS)
|
goto cleanup;
|
goto cleanup;
|
|
|
}
|
}
|
|
|
gfc_set_sym_referenced (sym);
|
gfc_set_sym_referenced (sym);
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
return MATCH_YES;
|
return MATCH_YES;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in PROCEDURE statement at %C");
|
gfc_error ("Syntax error in PROCEDURE statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
cleanup:
|
cleanup:
|
/* Free stuff up and return. */
|
/* Free stuff up and return. */
|
gfc_free_expr (initializer);
|
gfc_free_expr (initializer);
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
static match
|
static match
|
match_binding_attributes (gfc_typebound_proc* ba, bool generic, bool ppc);
|
match_binding_attributes (gfc_typebound_proc* ba, bool generic, bool ppc);
|
|
|
|
|
/* Match a procedure pointer component declaration (R445). */
|
/* Match a procedure pointer component declaration (R445). */
|
|
|
static match
|
static match
|
match_ppc_decl (void)
|
match_ppc_decl (void)
|
{
|
{
|
match m;
|
match m;
|
gfc_symbol *proc_if = NULL;
|
gfc_symbol *proc_if = NULL;
|
gfc_typespec ts;
|
gfc_typespec ts;
|
int num;
|
int num;
|
gfc_component *c;
|
gfc_component *c;
|
gfc_expr *initializer = NULL;
|
gfc_expr *initializer = NULL;
|
gfc_typebound_proc* tb;
|
gfc_typebound_proc* tb;
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
|
|
/* Parse interface (with brackets). */
|
/* Parse interface (with brackets). */
|
m = match_procedure_interface (&proc_if);
|
m = match_procedure_interface (&proc_if);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
/* Parse attributes. */
|
/* Parse attributes. */
|
tb = XCNEW (gfc_typebound_proc);
|
tb = XCNEW (gfc_typebound_proc);
|
tb->where = gfc_current_locus;
|
tb->where = gfc_current_locus;
|
m = match_binding_attributes (tb, false, true);
|
m = match_binding_attributes (tb, false, true);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.procedure = 1;
|
current_attr.procedure = 1;
|
current_attr.proc_pointer = 1;
|
current_attr.proc_pointer = 1;
|
current_attr.access = tb->access;
|
current_attr.access = tb->access;
|
current_attr.flavor = FL_PROCEDURE;
|
current_attr.flavor = FL_PROCEDURE;
|
|
|
/* Match the colons (required). */
|
/* Match the colons (required). */
|
if (gfc_match (" ::") != MATCH_YES)
|
if (gfc_match (" ::") != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected '::' after binding-attributes at %C");
|
gfc_error ("Expected '::' after binding-attributes at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Check for C450. */
|
/* Check for C450. */
|
if (!tb->nopass && proc_if == NULL)
|
if (!tb->nopass && proc_if == NULL)
|
{
|
{
|
gfc_error("NOPASS or explicit interface required at %C");
|
gfc_error("NOPASS or explicit interface required at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Procedure pointer "
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Procedure pointer "
|
"component at %C") == FAILURE)
|
"component at %C") == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Match PPC names. */
|
/* Match PPC names. */
|
ts = current_ts;
|
ts = current_ts;
|
for(num=1;;num++)
|
for(num=1;;num++)
|
{
|
{
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
else if (m == MATCH_ERROR)
|
else if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
if (gfc_add_component (gfc_current_block (), name, &c) == FAILURE)
|
if (gfc_add_component (gfc_current_block (), name, &c) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Add current_attr to the symbol attributes. */
|
/* Add current_attr to the symbol attributes. */
|
if (gfc_copy_attr (&c->attr, ¤t_attr, NULL) == FAILURE)
|
if (gfc_copy_attr (&c->attr, ¤t_attr, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_external (&c->attr, NULL) == FAILURE)
|
if (gfc_add_external (&c->attr, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_proc (&c->attr, name, NULL) == FAILURE)
|
if (gfc_add_proc (&c->attr, name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
c->tb = tb;
|
c->tb = tb;
|
|
|
/* Set interface. */
|
/* Set interface. */
|
if (proc_if != NULL)
|
if (proc_if != NULL)
|
{
|
{
|
c->ts.interface = proc_if;
|
c->ts.interface = proc_if;
|
c->attr.untyped = 1;
|
c->attr.untyped = 1;
|
c->attr.if_source = IFSRC_IFBODY;
|
c->attr.if_source = IFSRC_IFBODY;
|
}
|
}
|
else if (ts.type != BT_UNKNOWN)
|
else if (ts.type != BT_UNKNOWN)
|
{
|
{
|
c->ts = ts;
|
c->ts = ts;
|
c->ts.interface = gfc_new_symbol ("", gfc_current_ns);
|
c->ts.interface = gfc_new_symbol ("", gfc_current_ns);
|
c->ts.interface->ts = ts;
|
c->ts.interface->ts = ts;
|
c->ts.interface->attr.function = 1;
|
c->ts.interface->attr.function = 1;
|
c->attr.function = c->ts.interface->attr.function;
|
c->attr.function = c->ts.interface->attr.function;
|
c->attr.if_source = IFSRC_UNKNOWN;
|
c->attr.if_source = IFSRC_UNKNOWN;
|
}
|
}
|
|
|
if (gfc_match (" =>") == MATCH_YES)
|
if (gfc_match (" =>") == MATCH_YES)
|
{
|
{
|
m = gfc_match_null (&initializer);
|
m = gfc_match_null (&initializer);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Pointer initialization requires a NULL() at %C");
|
gfc_error ("Pointer initialization requires a NULL() at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
if (gfc_pure (NULL))
|
if (gfc_pure (NULL))
|
{
|
{
|
gfc_error ("Initialization of pointer at %C is not allowed in "
|
gfc_error ("Initialization of pointer at %C is not allowed in "
|
"a PURE procedure");
|
"a PURE procedure");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_free_expr (initializer);
|
gfc_free_expr (initializer);
|
return m;
|
return m;
|
}
|
}
|
c->initializer = initializer;
|
c->initializer = initializer;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
return MATCH_YES;
|
return MATCH_YES;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in procedure pointer component at %C");
|
gfc_error ("Syntax error in procedure pointer component at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Match a PROCEDURE declaration inside an interface (R1206). */
|
/* Match a PROCEDURE declaration inside an interface (R1206). */
|
|
|
static match
|
static match
|
match_procedure_in_interface (void)
|
match_procedure_in_interface (void)
|
{
|
{
|
match m;
|
match m;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
|
|
if (current_interface.type == INTERFACE_NAMELESS
|
if (current_interface.type == INTERFACE_NAMELESS
|
|| current_interface.type == INTERFACE_ABSTRACT)
|
|| current_interface.type == INTERFACE_ABSTRACT)
|
{
|
{
|
gfc_error ("PROCEDURE at %C must be in a generic interface");
|
gfc_error ("PROCEDURE at %C must be in a generic interface");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
for(;;)
|
for(;;)
|
{
|
{
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
else if (m == MATCH_ERROR)
|
else if (m == MATCH_ERROR)
|
return m;
|
return m;
|
if (gfc_get_symbol (name, gfc_current_ns->parent, &sym))
|
if (gfc_get_symbol (name, gfc_current_ns->parent, &sym))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_interface (sym) == FAILURE)
|
if (gfc_add_interface (sym) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in PROCEDURE statement at %C");
|
gfc_error ("Syntax error in PROCEDURE statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* General matcher for PROCEDURE declarations. */
|
/* General matcher for PROCEDURE declarations. */
|
|
|
static match match_procedure_in_type (void);
|
static match match_procedure_in_type (void);
|
|
|
match
|
match
|
gfc_match_procedure (void)
|
gfc_match_procedure (void)
|
{
|
{
|
match m;
|
match m;
|
|
|
switch (gfc_current_state ())
|
switch (gfc_current_state ())
|
{
|
{
|
case COMP_NONE:
|
case COMP_NONE:
|
case COMP_PROGRAM:
|
case COMP_PROGRAM:
|
case COMP_MODULE:
|
case COMP_MODULE:
|
case COMP_SUBROUTINE:
|
case COMP_SUBROUTINE:
|
case COMP_FUNCTION:
|
case COMP_FUNCTION:
|
m = match_procedure_decl ();
|
m = match_procedure_decl ();
|
break;
|
break;
|
case COMP_INTERFACE:
|
case COMP_INTERFACE:
|
m = match_procedure_in_interface ();
|
m = match_procedure_in_interface ();
|
break;
|
break;
|
case COMP_DERIVED:
|
case COMP_DERIVED:
|
m = match_ppc_decl ();
|
m = match_ppc_decl ();
|
break;
|
break;
|
case COMP_DERIVED_CONTAINS:
|
case COMP_DERIVED_CONTAINS:
|
m = match_procedure_in_type ();
|
m = match_procedure_in_type ();
|
break;
|
break;
|
default:
|
default:
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: PROCEDURE statement at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: PROCEDURE statement at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Warn if a matched procedure has the same name as an intrinsic; this is
|
/* Warn if a matched procedure has the same name as an intrinsic; this is
|
simply a wrapper around gfc_warn_intrinsic_shadow that interprets the current
|
simply a wrapper around gfc_warn_intrinsic_shadow that interprets the current
|
parser-state-stack to find out whether we're in a module. */
|
parser-state-stack to find out whether we're in a module. */
|
|
|
static void
|
static void
|
warn_intrinsic_shadow (const gfc_symbol* sym, bool func)
|
warn_intrinsic_shadow (const gfc_symbol* sym, bool func)
|
{
|
{
|
bool in_module;
|
bool in_module;
|
|
|
in_module = (gfc_state_stack->previous
|
in_module = (gfc_state_stack->previous
|
&& gfc_state_stack->previous->state == COMP_MODULE);
|
&& gfc_state_stack->previous->state == COMP_MODULE);
|
|
|
gfc_warn_intrinsic_shadow (sym, in_module, func);
|
gfc_warn_intrinsic_shadow (sym, in_module, func);
|
}
|
}
|
|
|
|
|
/* Match a function declaration. */
|
/* Match a function declaration. */
|
|
|
match
|
match
|
gfc_match_function_decl (void)
|
gfc_match_function_decl (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol *sym, *result;
|
gfc_symbol *sym, *result;
|
locus old_loc;
|
locus old_loc;
|
match m;
|
match m;
|
match suffix_match;
|
match suffix_match;
|
match found_match; /* Status returned by match func. */
|
match found_match; /* Status returned by match func. */
|
|
|
if (gfc_current_state () != COMP_NONE
|
if (gfc_current_state () != COMP_NONE
|
&& gfc_current_state () != COMP_INTERFACE
|
&& gfc_current_state () != COMP_INTERFACE
|
&& gfc_current_state () != COMP_CONTAINS)
|
&& gfc_current_state () != COMP_CONTAINS)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
gfc_clear_ts (¤t_ts);
|
gfc_clear_ts (¤t_ts);
|
|
|
old_loc = gfc_current_locus;
|
old_loc = gfc_current_locus;
|
|
|
m = gfc_match_prefix (¤t_ts);
|
m = gfc_match_prefix (¤t_ts);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
return m;
|
return m;
|
}
|
}
|
|
|
if (gfc_match ("function% %n", name) != MATCH_YES)
|
if (gfc_match ("function% %n", name) != MATCH_YES)
|
{
|
{
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
if (get_proc_name (name, &sym, false))
|
if (get_proc_name (name, &sym, false))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (add_hidden_procptr_result (sym) == SUCCESS)
|
if (add_hidden_procptr_result (sym) == SUCCESS)
|
sym = sym->result;
|
sym = sym->result;
|
|
|
gfc_new_block = sym;
|
gfc_new_block = sym;
|
|
|
m = gfc_match_formal_arglist (sym, 0, 0);
|
m = gfc_match_formal_arglist (sym, 0, 0);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected formal argument list in function "
|
gfc_error ("Expected formal argument list in function "
|
"definition at %C");
|
"definition at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
else if (m == MATCH_ERROR)
|
else if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
|
|
result = NULL;
|
result = NULL;
|
|
|
/* According to the draft, the bind(c) and result clause can
|
/* According to the draft, the bind(c) and result clause can
|
come in either order after the formal_arg_list (i.e., either
|
come in either order after the formal_arg_list (i.e., either
|
can be first, both can exist together or by themselves or neither
|
can be first, both can exist together or by themselves or neither
|
one). Therefore, the match_result can't match the end of the
|
one). Therefore, the match_result can't match the end of the
|
string, and check for the bind(c) or result clause in either order. */
|
string, and check for the bind(c) or result clause in either order. */
|
found_match = gfc_match_eos ();
|
found_match = gfc_match_eos ();
|
|
|
/* Make sure that it isn't already declared as BIND(C). If it is, it
|
/* Make sure that it isn't already declared as BIND(C). If it is, it
|
must have been marked BIND(C) with a BIND(C) attribute and that is
|
must have been marked BIND(C) with a BIND(C) attribute and that is
|
not allowed for procedures. */
|
not allowed for procedures. */
|
if (sym->attr.is_bind_c == 1)
|
if (sym->attr.is_bind_c == 1)
|
{
|
{
|
sym->attr.is_bind_c = 0;
|
sym->attr.is_bind_c = 0;
|
if (sym->old_symbol != NULL)
|
if (sym->old_symbol != NULL)
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
"variables or common blocks",
|
"variables or common blocks",
|
&(sym->old_symbol->declared_at));
|
&(sym->old_symbol->declared_at));
|
else
|
else
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
"variables or common blocks", &gfc_current_locus);
|
"variables or common blocks", &gfc_current_locus);
|
}
|
}
|
|
|
if (found_match != MATCH_YES)
|
if (found_match != MATCH_YES)
|
{
|
{
|
/* If we haven't found the end-of-statement, look for a suffix. */
|
/* If we haven't found the end-of-statement, look for a suffix. */
|
suffix_match = gfc_match_suffix (sym, &result);
|
suffix_match = gfc_match_suffix (sym, &result);
|
if (suffix_match == MATCH_YES)
|
if (suffix_match == MATCH_YES)
|
/* Need to get the eos now. */
|
/* Need to get the eos now. */
|
found_match = gfc_match_eos ();
|
found_match = gfc_match_eos ();
|
else
|
else
|
found_match = suffix_match;
|
found_match = suffix_match;
|
}
|
}
|
|
|
if(found_match != MATCH_YES)
|
if(found_match != MATCH_YES)
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
else
|
else
|
{
|
{
|
/* Make changes to the symbol. */
|
/* Make changes to the symbol. */
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
|
|
if (gfc_add_function (&sym->attr, sym->name, NULL) == FAILURE)
|
if (gfc_add_function (&sym->attr, sym->name, NULL) == FAILURE)
|
goto cleanup;
|
goto cleanup;
|
|
|
if (gfc_missing_attr (&sym->attr, NULL) == FAILURE
|
if (gfc_missing_attr (&sym->attr, NULL) == FAILURE
|
|| copy_prefix (&sym->attr, &sym->declared_at) == FAILURE)
|
|| copy_prefix (&sym->attr, &sym->declared_at) == FAILURE)
|
goto cleanup;
|
goto cleanup;
|
|
|
/* Delay matching the function characteristics until after the
|
/* Delay matching the function characteristics until after the
|
specification block by signalling kind=-1. */
|
specification block by signalling kind=-1. */
|
sym->declared_at = old_loc;
|
sym->declared_at = old_loc;
|
if (current_ts.type != BT_UNKNOWN)
|
if (current_ts.type != BT_UNKNOWN)
|
current_ts.kind = -1;
|
current_ts.kind = -1;
|
else
|
else
|
current_ts.kind = 0;
|
current_ts.kind = 0;
|
|
|
if (result == NULL)
|
if (result == NULL)
|
{
|
{
|
if (current_ts.type != BT_UNKNOWN
|
if (current_ts.type != BT_UNKNOWN
|
&& gfc_add_type (sym, ¤t_ts, &gfc_current_locus) == FAILURE)
|
&& gfc_add_type (sym, ¤t_ts, &gfc_current_locus) == FAILURE)
|
goto cleanup;
|
goto cleanup;
|
sym->result = sym;
|
sym->result = sym;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (current_ts.type != BT_UNKNOWN
|
if (current_ts.type != BT_UNKNOWN
|
&& gfc_add_type (result, ¤t_ts, &gfc_current_locus)
|
&& gfc_add_type (result, ¤t_ts, &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
goto cleanup;
|
goto cleanup;
|
sym->result = result;
|
sym->result = result;
|
}
|
}
|
|
|
/* Warn if this procedure has the same name as an intrinsic. */
|
/* Warn if this procedure has the same name as an intrinsic. */
|
warn_intrinsic_shadow (sym, true);
|
warn_intrinsic_shadow (sym, true);
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
cleanup:
|
cleanup:
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* This is mostly a copy of parse.c(add_global_procedure) but modified to
|
/* This is mostly a copy of parse.c(add_global_procedure) but modified to
|
pass the name of the entry, rather than the gfc_current_block name, and
|
pass the name of the entry, rather than the gfc_current_block name, and
|
to return false upon finding an existing global entry. */
|
to return false upon finding an existing global entry. */
|
|
|
static bool
|
static bool
|
add_global_entry (const char *name, int sub)
|
add_global_entry (const char *name, int sub)
|
{
|
{
|
gfc_gsymbol *s;
|
gfc_gsymbol *s;
|
enum gfc_symbol_type type;
|
enum gfc_symbol_type type;
|
|
|
s = gfc_get_gsymbol(name);
|
s = gfc_get_gsymbol(name);
|
type = sub ? GSYM_SUBROUTINE : GSYM_FUNCTION;
|
type = sub ? GSYM_SUBROUTINE : GSYM_FUNCTION;
|
|
|
if (s->defined
|
if (s->defined
|
|| (s->type != GSYM_UNKNOWN
|
|| (s->type != GSYM_UNKNOWN
|
&& s->type != type))
|
&& s->type != type))
|
gfc_global_used(s, NULL);
|
gfc_global_used(s, NULL);
|
else
|
else
|
{
|
{
|
s->type = type;
|
s->type = type;
|
s->where = gfc_current_locus;
|
s->where = gfc_current_locus;
|
s->defined = 1;
|
s->defined = 1;
|
s->ns = gfc_current_ns;
|
s->ns = gfc_current_ns;
|
return true;
|
return true;
|
}
|
}
|
return false;
|
return false;
|
}
|
}
|
|
|
|
|
/* Match an ENTRY statement. */
|
/* Match an ENTRY statement. */
|
|
|
match
|
match
|
gfc_match_entry (void)
|
gfc_match_entry (void)
|
{
|
{
|
gfc_symbol *proc;
|
gfc_symbol *proc;
|
gfc_symbol *result;
|
gfc_symbol *result;
|
gfc_symbol *entry;
|
gfc_symbol *entry;
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_compile_state state;
|
gfc_compile_state state;
|
match m;
|
match m;
|
gfc_entry_list *el;
|
gfc_entry_list *el;
|
locus old_loc;
|
locus old_loc;
|
bool module_procedure;
|
bool module_procedure;
|
char peek_char;
|
char peek_char;
|
match is_bind_c;
|
match is_bind_c;
|
|
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
state = gfc_current_state ();
|
state = gfc_current_state ();
|
if (state != COMP_SUBROUTINE && state != COMP_FUNCTION)
|
if (state != COMP_SUBROUTINE && state != COMP_FUNCTION)
|
{
|
{
|
switch (state)
|
switch (state)
|
{
|
{
|
case COMP_PROGRAM:
|
case COMP_PROGRAM:
|
gfc_error ("ENTRY statement at %C cannot appear within a PROGRAM");
|
gfc_error ("ENTRY statement at %C cannot appear within a PROGRAM");
|
break;
|
break;
|
case COMP_MODULE:
|
case COMP_MODULE:
|
gfc_error ("ENTRY statement at %C cannot appear within a MODULE");
|
gfc_error ("ENTRY statement at %C cannot appear within a MODULE");
|
break;
|
break;
|
case COMP_BLOCK_DATA:
|
case COMP_BLOCK_DATA:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"a BLOCK DATA");
|
"a BLOCK DATA");
|
break;
|
break;
|
case COMP_INTERFACE:
|
case COMP_INTERFACE:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"an INTERFACE");
|
"an INTERFACE");
|
break;
|
break;
|
case COMP_DERIVED:
|
case COMP_DERIVED:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"a DERIVED TYPE block");
|
"a DERIVED TYPE block");
|
break;
|
break;
|
case COMP_IF:
|
case COMP_IF:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"an IF-THEN block");
|
"an IF-THEN block");
|
break;
|
break;
|
case COMP_DO:
|
case COMP_DO:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"a DO block");
|
"a DO block");
|
break;
|
break;
|
case COMP_SELECT:
|
case COMP_SELECT:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"a SELECT block");
|
"a SELECT block");
|
break;
|
break;
|
case COMP_FORALL:
|
case COMP_FORALL:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"a FORALL block");
|
"a FORALL block");
|
break;
|
break;
|
case COMP_WHERE:
|
case COMP_WHERE:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"a WHERE block");
|
"a WHERE block");
|
break;
|
break;
|
case COMP_CONTAINS:
|
case COMP_CONTAINS:
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
gfc_error ("ENTRY statement at %C cannot appear within "
|
"a contained subprogram");
|
"a contained subprogram");
|
break;
|
break;
|
default:
|
default:
|
gfc_internal_error ("gfc_match_entry(): Bad state");
|
gfc_internal_error ("gfc_match_entry(): Bad state");
|
}
|
}
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
module_procedure = gfc_current_ns->parent != NULL
|
module_procedure = gfc_current_ns->parent != NULL
|
&& gfc_current_ns->parent->proc_name
|
&& gfc_current_ns->parent->proc_name
|
&& gfc_current_ns->parent->proc_name->attr.flavor
|
&& gfc_current_ns->parent->proc_name->attr.flavor
|
== FL_MODULE;
|
== FL_MODULE;
|
|
|
if (gfc_current_ns->parent != NULL
|
if (gfc_current_ns->parent != NULL
|
&& gfc_current_ns->parent->proc_name
|
&& gfc_current_ns->parent->proc_name
|
&& !module_procedure)
|
&& !module_procedure)
|
{
|
{
|
gfc_error("ENTRY statement at %C cannot appear in a "
|
gfc_error("ENTRY statement at %C cannot appear in a "
|
"contained procedure");
|
"contained procedure");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Module function entries need special care in get_proc_name
|
/* Module function entries need special care in get_proc_name
|
because previous references within the function will have
|
because previous references within the function will have
|
created symbols attached to the current namespace. */
|
created symbols attached to the current namespace. */
|
if (get_proc_name (name, &entry,
|
if (get_proc_name (name, &entry,
|
gfc_current_ns->parent != NULL
|
gfc_current_ns->parent != NULL
|
&& module_procedure))
|
&& module_procedure))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
proc = gfc_current_block ();
|
proc = gfc_current_block ();
|
|
|
/* Make sure that it isn't already declared as BIND(C). If it is, it
|
/* Make sure that it isn't already declared as BIND(C). If it is, it
|
must have been marked BIND(C) with a BIND(C) attribute and that is
|
must have been marked BIND(C) with a BIND(C) attribute and that is
|
not allowed for procedures. */
|
not allowed for procedures. */
|
if (entry->attr.is_bind_c == 1)
|
if (entry->attr.is_bind_c == 1)
|
{
|
{
|
entry->attr.is_bind_c = 0;
|
entry->attr.is_bind_c = 0;
|
if (entry->old_symbol != NULL)
|
if (entry->old_symbol != NULL)
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
"variables or common blocks",
|
"variables or common blocks",
|
&(entry->old_symbol->declared_at));
|
&(entry->old_symbol->declared_at));
|
else
|
else
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
"variables or common blocks", &gfc_current_locus);
|
"variables or common blocks", &gfc_current_locus);
|
}
|
}
|
|
|
/* Check what next non-whitespace character is so we can tell if there
|
/* Check what next non-whitespace character is so we can tell if there
|
is the required parens if we have a BIND(C). */
|
is the required parens if we have a BIND(C). */
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
peek_char = gfc_peek_ascii_char ();
|
peek_char = gfc_peek_ascii_char ();
|
|
|
if (state == COMP_SUBROUTINE)
|
if (state == COMP_SUBROUTINE)
|
{
|
{
|
/* An entry in a subroutine. */
|
/* An entry in a subroutine. */
|
if (!gfc_current_ns->parent && !add_global_entry (name, 1))
|
if (!gfc_current_ns->parent && !add_global_entry (name, 1))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
m = gfc_match_formal_arglist (entry, 0, 1);
|
m = gfc_match_formal_arglist (entry, 0, 1);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Call gfc_match_bind_c with allow_binding_name = true as ENTRY can
|
/* Call gfc_match_bind_c with allow_binding_name = true as ENTRY can
|
never be an internal procedure. */
|
never be an internal procedure. */
|
is_bind_c = gfc_match_bind_c (entry, true);
|
is_bind_c = gfc_match_bind_c (entry, true);
|
if (is_bind_c == MATCH_ERROR)
|
if (is_bind_c == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
if (is_bind_c == MATCH_YES)
|
if (is_bind_c == MATCH_YES)
|
{
|
{
|
if (peek_char != '(')
|
if (peek_char != '(')
|
{
|
{
|
gfc_error ("Missing required parentheses before BIND(C) at %C");
|
gfc_error ("Missing required parentheses before BIND(C) at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
if (gfc_add_is_bind_c (&(entry->attr), entry->name, &(entry->declared_at), 1)
|
if (gfc_add_is_bind_c (&(entry->attr), entry->name, &(entry->declared_at), 1)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_add_entry (&entry->attr, entry->name, NULL) == FAILURE
|
if (gfc_add_entry (&entry->attr, entry->name, NULL) == FAILURE
|
|| gfc_add_subroutine (&entry->attr, entry->name, NULL) == FAILURE)
|
|| gfc_add_subroutine (&entry->attr, entry->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* An entry in a function.
|
/* An entry in a function.
|
We need to take special care because writing
|
We need to take special care because writing
|
ENTRY f()
|
ENTRY f()
|
as
|
as
|
ENTRY f
|
ENTRY f
|
is allowed, whereas
|
is allowed, whereas
|
ENTRY f() RESULT (r)
|
ENTRY f() RESULT (r)
|
can't be written as
|
can't be written as
|
ENTRY f RESULT (r). */
|
ENTRY f RESULT (r). */
|
if (!gfc_current_ns->parent && !add_global_entry (name, 0))
|
if (!gfc_current_ns->parent && !add_global_entry (name, 0))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
old_loc = gfc_current_locus;
|
old_loc = gfc_current_locus;
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
/* Match the empty argument list, and add the interface to
|
/* Match the empty argument list, and add the interface to
|
the symbol. */
|
the symbol. */
|
m = gfc_match_formal_arglist (entry, 0, 1);
|
m = gfc_match_formal_arglist (entry, 0, 1);
|
}
|
}
|
else
|
else
|
m = gfc_match_formal_arglist (entry, 0, 0);
|
m = gfc_match_formal_arglist (entry, 0, 0);
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
result = NULL;
|
result = NULL;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
if (gfc_add_entry (&entry->attr, entry->name, NULL) == FAILURE
|
if (gfc_add_entry (&entry->attr, entry->name, NULL) == FAILURE
|
|| gfc_add_function (&entry->attr, entry->name, NULL) == FAILURE)
|
|| gfc_add_function (&entry->attr, entry->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
entry->result = entry;
|
entry->result = entry;
|
}
|
}
|
else
|
else
|
{
|
{
|
m = gfc_match_suffix (entry, &result);
|
m = gfc_match_suffix (entry, &result);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
gfc_syntax_error (ST_ENTRY);
|
gfc_syntax_error (ST_ENTRY);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (result)
|
if (result)
|
{
|
{
|
if (gfc_add_result (&result->attr, result->name, NULL) == FAILURE
|
if (gfc_add_result (&result->attr, result->name, NULL) == FAILURE
|
|| gfc_add_entry (&entry->attr, result->name, NULL) == FAILURE
|
|| gfc_add_entry (&entry->attr, result->name, NULL) == FAILURE
|
|| gfc_add_function (&entry->attr, result->name, NULL)
|
|| gfc_add_function (&entry->attr, result->name, NULL)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
entry->result = result;
|
entry->result = result;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (gfc_add_entry (&entry->attr, entry->name, NULL) == FAILURE
|
if (gfc_add_entry (&entry->attr, entry->name, NULL) == FAILURE
|
|| gfc_add_function (&entry->attr, entry->name, NULL) == FAILURE)
|
|| gfc_add_function (&entry->attr, entry->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
entry->result = entry;
|
entry->result = entry;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (gfc_match_eos () != MATCH_YES)
|
if (gfc_match_eos () != MATCH_YES)
|
{
|
{
|
gfc_syntax_error (ST_ENTRY);
|
gfc_syntax_error (ST_ENTRY);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
entry->attr.recursive = proc->attr.recursive;
|
entry->attr.recursive = proc->attr.recursive;
|
entry->attr.elemental = proc->attr.elemental;
|
entry->attr.elemental = proc->attr.elemental;
|
entry->attr.pure = proc->attr.pure;
|
entry->attr.pure = proc->attr.pure;
|
|
|
el = gfc_get_entry_list ();
|
el = gfc_get_entry_list ();
|
el->sym = entry;
|
el->sym = entry;
|
el->next = gfc_current_ns->entries;
|
el->next = gfc_current_ns->entries;
|
gfc_current_ns->entries = el;
|
gfc_current_ns->entries = el;
|
if (el->next)
|
if (el->next)
|
el->id = el->next->id + 1;
|
el->id = el->next->id + 1;
|
else
|
else
|
el->id = 1;
|
el->id = 1;
|
|
|
new_st.op = EXEC_ENTRY;
|
new_st.op = EXEC_ENTRY;
|
new_st.ext.entry = el;
|
new_st.ext.entry = el;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a subroutine statement, including optional prefixes. */
|
/* Match a subroutine statement, including optional prefixes. */
|
|
|
match
|
match
|
gfc_match_subroutine (void)
|
gfc_match_subroutine (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
match is_bind_c;
|
match is_bind_c;
|
char peek_char;
|
char peek_char;
|
bool allow_binding_name;
|
bool allow_binding_name;
|
|
|
if (gfc_current_state () != COMP_NONE
|
if (gfc_current_state () != COMP_NONE
|
&& gfc_current_state () != COMP_INTERFACE
|
&& gfc_current_state () != COMP_INTERFACE
|
&& gfc_current_state () != COMP_CONTAINS)
|
&& gfc_current_state () != COMP_CONTAINS)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
m = gfc_match_prefix (NULL);
|
m = gfc_match_prefix (NULL);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
m = gfc_match ("subroutine% %n", name);
|
m = gfc_match ("subroutine% %n", name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if (get_proc_name (name, &sym, false))
|
if (get_proc_name (name, &sym, false))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Set declared_at as it might point to, e.g., a PUBLIC statement, if
|
/* Set declared_at as it might point to, e.g., a PUBLIC statement, if
|
the symbol existed before. */
|
the symbol existed before. */
|
sym->declared_at = gfc_current_locus;
|
sym->declared_at = gfc_current_locus;
|
|
|
if (add_hidden_procptr_result (sym) == SUCCESS)
|
if (add_hidden_procptr_result (sym) == SUCCESS)
|
sym = sym->result;
|
sym = sym->result;
|
|
|
gfc_new_block = sym;
|
gfc_new_block = sym;
|
|
|
/* Check what next non-whitespace character is so we can tell if there
|
/* Check what next non-whitespace character is so we can tell if there
|
is the required parens if we have a BIND(C). */
|
is the required parens if we have a BIND(C). */
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
peek_char = gfc_peek_ascii_char ();
|
peek_char = gfc_peek_ascii_char ();
|
|
|
if (gfc_add_subroutine (&sym->attr, sym->name, NULL) == FAILURE)
|
if (gfc_add_subroutine (&sym->attr, sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match_formal_arglist (sym, 0, 1) != MATCH_YES)
|
if (gfc_match_formal_arglist (sym, 0, 1) != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Make sure that it isn't already declared as BIND(C). If it is, it
|
/* Make sure that it isn't already declared as BIND(C). If it is, it
|
must have been marked BIND(C) with a BIND(C) attribute and that is
|
must have been marked BIND(C) with a BIND(C) attribute and that is
|
not allowed for procedures. */
|
not allowed for procedures. */
|
if (sym->attr.is_bind_c == 1)
|
if (sym->attr.is_bind_c == 1)
|
{
|
{
|
sym->attr.is_bind_c = 0;
|
sym->attr.is_bind_c = 0;
|
if (sym->old_symbol != NULL)
|
if (sym->old_symbol != NULL)
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
"variables or common blocks",
|
"variables or common blocks",
|
&(sym->old_symbol->declared_at));
|
&(sym->old_symbol->declared_at));
|
else
|
else
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
gfc_error_now ("BIND(C) attribute at %L can only be used for "
|
"variables or common blocks", &gfc_current_locus);
|
"variables or common blocks", &gfc_current_locus);
|
}
|
}
|
|
|
/* C binding names are not allowed for internal procedures. */
|
/* C binding names are not allowed for internal procedures. */
|
if (gfc_current_state () == COMP_CONTAINS
|
if (gfc_current_state () == COMP_CONTAINS
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE)
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE)
|
allow_binding_name = false;
|
allow_binding_name = false;
|
else
|
else
|
allow_binding_name = true;
|
allow_binding_name = true;
|
|
|
/* Here, we are just checking if it has the bind(c) attribute, and if
|
/* Here, we are just checking if it has the bind(c) attribute, and if
|
so, then we need to make sure it's all correct. If it doesn't,
|
so, then we need to make sure it's all correct. If it doesn't,
|
we still need to continue matching the rest of the subroutine line. */
|
we still need to continue matching the rest of the subroutine line. */
|
is_bind_c = gfc_match_bind_c (sym, allow_binding_name);
|
is_bind_c = gfc_match_bind_c (sym, allow_binding_name);
|
if (is_bind_c == MATCH_ERROR)
|
if (is_bind_c == MATCH_ERROR)
|
{
|
{
|
/* There was an attempt at the bind(c), but it was wrong. An
|
/* There was an attempt at the bind(c), but it was wrong. An
|
error message should have been printed w/in the gfc_match_bind_c
|
error message should have been printed w/in the gfc_match_bind_c
|
so here we'll just return the MATCH_ERROR. */
|
so here we'll just return the MATCH_ERROR. */
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (is_bind_c == MATCH_YES)
|
if (is_bind_c == MATCH_YES)
|
{
|
{
|
/* The following is allowed in the Fortran 2008 draft. */
|
/* The following is allowed in the Fortran 2008 draft. */
|
if (gfc_current_state () == COMP_CONTAINS
|
if (gfc_current_state () == COMP_CONTAINS
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE
|
&& sym->ns->proc_name->attr.flavor != FL_MODULE
|
&& gfc_notify_std (GFC_STD_F2008, "Fortran 2008: BIND(C) attribute "
|
&& gfc_notify_std (GFC_STD_F2008, "Fortran 2008: BIND(C) attribute "
|
"at %L may not be specified for an internal "
|
"at %L may not be specified for an internal "
|
"procedure", &gfc_current_locus)
|
"procedure", &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (peek_char != '(')
|
if (peek_char != '(')
|
{
|
{
|
gfc_error ("Missing required parentheses before BIND(C) at %C");
|
gfc_error ("Missing required parentheses before BIND(C) at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
if (gfc_add_is_bind_c (&(sym->attr), sym->name, &(sym->declared_at), 1)
|
if (gfc_add_is_bind_c (&(sym->attr), sym->name, &(sym->declared_at), 1)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_eos () != MATCH_YES)
|
if (gfc_match_eos () != MATCH_YES)
|
{
|
{
|
gfc_syntax_error (ST_SUBROUTINE);
|
gfc_syntax_error (ST_SUBROUTINE);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (copy_prefix (&sym->attr, &sym->declared_at) == FAILURE)
|
if (copy_prefix (&sym->attr, &sym->declared_at) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Warn if it has the same name as an intrinsic. */
|
/* Warn if it has the same name as an intrinsic. */
|
warn_intrinsic_shadow (sym, false);
|
warn_intrinsic_shadow (sym, false);
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a BIND(C) specifier, with the optional 'name=' specifier if
|
/* Match a BIND(C) specifier, with the optional 'name=' specifier if
|
given, and set the binding label in either the given symbol (if not
|
given, and set the binding label in either the given symbol (if not
|
NULL), or in the current_ts. The symbol may be NULL because we may
|
NULL), or in the current_ts. The symbol may be NULL because we may
|
encounter the BIND(C) before the declaration itself. Return
|
encounter the BIND(C) before the declaration itself. Return
|
MATCH_NO if what we're looking at isn't a BIND(C) specifier,
|
MATCH_NO if what we're looking at isn't a BIND(C) specifier,
|
MATCH_ERROR if it is a BIND(C) clause but an error was encountered,
|
MATCH_ERROR if it is a BIND(C) clause but an error was encountered,
|
or MATCH_YES if the specifier was correct and the binding label and
|
or MATCH_YES if the specifier was correct and the binding label and
|
bind(c) fields were set correctly for the given symbol or the
|
bind(c) fields were set correctly for the given symbol or the
|
current_ts. If allow_binding_name is false, no binding name may be
|
current_ts. If allow_binding_name is false, no binding name may be
|
given. */
|
given. */
|
|
|
match
|
match
|
gfc_match_bind_c (gfc_symbol *sym, bool allow_binding_name)
|
gfc_match_bind_c (gfc_symbol *sym, bool allow_binding_name)
|
{
|
{
|
/* binding label, if exists */
|
/* binding label, if exists */
|
char binding_label[GFC_MAX_SYMBOL_LEN + 1];
|
char binding_label[GFC_MAX_SYMBOL_LEN + 1];
|
match double_quote;
|
match double_quote;
|
match single_quote;
|
match single_quote;
|
|
|
/* Initialize the flag that specifies whether we encountered a NAME=
|
/* Initialize the flag that specifies whether we encountered a NAME=
|
specifier or not. */
|
specifier or not. */
|
has_name_equals = 0;
|
has_name_equals = 0;
|
|
|
/* Init the first char to nil so we can catch if we don't have
|
/* Init the first char to nil so we can catch if we don't have
|
the label (name attr) or the symbol name yet. */
|
the label (name attr) or the symbol name yet. */
|
binding_label[0] = '\0';
|
binding_label[0] = '\0';
|
|
|
/* This much we have to be able to match, in this order, if
|
/* This much we have to be able to match, in this order, if
|
there is a bind(c) label. */
|
there is a bind(c) label. */
|
if (gfc_match (" bind ( c ") != MATCH_YES)
|
if (gfc_match (" bind ( c ") != MATCH_YES)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
/* Now see if there is a binding label, or if we've reached the
|
/* Now see if there is a binding label, or if we've reached the
|
end of the bind(c) attribute without one. */
|
end of the bind(c) attribute without one. */
|
if (gfc_match_char (',') == MATCH_YES)
|
if (gfc_match_char (',') == MATCH_YES)
|
{
|
{
|
if (gfc_match (" name = ") != MATCH_YES)
|
if (gfc_match (" name = ") != MATCH_YES)
|
{
|
{
|
gfc_error ("Syntax error in NAME= specifier for binding label "
|
gfc_error ("Syntax error in NAME= specifier for binding label "
|
"at %C");
|
"at %C");
|
/* should give an error message here */
|
/* should give an error message here */
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
has_name_equals = 1;
|
has_name_equals = 1;
|
|
|
/* Get the opening quote. */
|
/* Get the opening quote. */
|
double_quote = MATCH_YES;
|
double_quote = MATCH_YES;
|
single_quote = MATCH_YES;
|
single_quote = MATCH_YES;
|
double_quote = gfc_match_char ('"');
|
double_quote = gfc_match_char ('"');
|
if (double_quote != MATCH_YES)
|
if (double_quote != MATCH_YES)
|
single_quote = gfc_match_char ('\'');
|
single_quote = gfc_match_char ('\'');
|
if (double_quote != MATCH_YES && single_quote != MATCH_YES)
|
if (double_quote != MATCH_YES && single_quote != MATCH_YES)
|
{
|
{
|
gfc_error ("Syntax error in NAME= specifier for binding label "
|
gfc_error ("Syntax error in NAME= specifier for binding label "
|
"at %C");
|
"at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Grab the binding label, using functions that will not lower
|
/* Grab the binding label, using functions that will not lower
|
case the names automatically. */
|
case the names automatically. */
|
if (gfc_match_name_C (binding_label) != MATCH_YES)
|
if (gfc_match_name_C (binding_label) != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Get the closing quotation. */
|
/* Get the closing quotation. */
|
if (double_quote == MATCH_YES)
|
if (double_quote == MATCH_YES)
|
{
|
{
|
if (gfc_match_char ('"') != MATCH_YES)
|
if (gfc_match_char ('"') != MATCH_YES)
|
{
|
{
|
gfc_error ("Missing closing quote '\"' for binding label at %C");
|
gfc_error ("Missing closing quote '\"' for binding label at %C");
|
/* User started string with '"' so looked to match it. */
|
/* User started string with '"' so looked to match it. */
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (gfc_match_char ('\'') != MATCH_YES)
|
if (gfc_match_char ('\'') != MATCH_YES)
|
{
|
{
|
gfc_error ("Missing closing quote '\'' for binding label at %C");
|
gfc_error ("Missing closing quote '\'' for binding label at %C");
|
/* User started string with "'" char. */
|
/* User started string with "'" char. */
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Get the required right paren. */
|
/* Get the required right paren. */
|
if (gfc_match_char (')') != MATCH_YES)
|
if (gfc_match_char (')') != MATCH_YES)
|
{
|
{
|
gfc_error ("Missing closing paren for binding label at %C");
|
gfc_error ("Missing closing paren for binding label at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (has_name_equals && !allow_binding_name)
|
if (has_name_equals && !allow_binding_name)
|
{
|
{
|
gfc_error ("No binding name is allowed in BIND(C) at %C");
|
gfc_error ("No binding name is allowed in BIND(C) at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (has_name_equals && sym != NULL && sym->attr.dummy)
|
if (has_name_equals && sym != NULL && sym->attr.dummy)
|
{
|
{
|
gfc_error ("For dummy procedure %s, no binding name is "
|
gfc_error ("For dummy procedure %s, no binding name is "
|
"allowed in BIND(C) at %C", sym->name);
|
"allowed in BIND(C) at %C", sym->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Save the binding label to the symbol. If sym is null, we're
|
/* Save the binding label to the symbol. If sym is null, we're
|
probably matching the typespec attributes of a declaration and
|
probably matching the typespec attributes of a declaration and
|
haven't gotten the name yet, and therefore, no symbol yet. */
|
haven't gotten the name yet, and therefore, no symbol yet. */
|
if (binding_label[0] != '\0')
|
if (binding_label[0] != '\0')
|
{
|
{
|
if (sym != NULL)
|
if (sym != NULL)
|
{
|
{
|
strcpy (sym->binding_label, binding_label);
|
strcpy (sym->binding_label, binding_label);
|
}
|
}
|
else
|
else
|
strcpy (curr_binding_label, binding_label);
|
strcpy (curr_binding_label, binding_label);
|
}
|
}
|
else if (allow_binding_name)
|
else if (allow_binding_name)
|
{
|
{
|
/* No binding label, but if symbol isn't null, we
|
/* No binding label, but if symbol isn't null, we
|
can set the label for it here.
|
can set the label for it here.
|
If name="" or allow_binding_name is false, no C binding name is
|
If name="" or allow_binding_name is false, no C binding name is
|
created. */
|
created. */
|
if (sym != NULL && sym->name != NULL && has_name_equals == 0)
|
if (sym != NULL && sym->name != NULL && has_name_equals == 0)
|
strncpy (sym->binding_label, sym->name, strlen (sym->name) + 1);
|
strncpy (sym->binding_label, sym->name, strlen (sym->name) + 1);
|
}
|
}
|
|
|
if (has_name_equals && gfc_current_state () == COMP_INTERFACE
|
if (has_name_equals && gfc_current_state () == COMP_INTERFACE
|
&& current_interface.type == INTERFACE_ABSTRACT)
|
&& current_interface.type == INTERFACE_ABSTRACT)
|
{
|
{
|
gfc_error ("NAME not allowed on BIND(C) for ABSTRACT INTERFACE at %C");
|
gfc_error ("NAME not allowed on BIND(C) for ABSTRACT INTERFACE at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Return nonzero if we're currently compiling a contained procedure. */
|
/* Return nonzero if we're currently compiling a contained procedure. */
|
|
|
static int
|
static int
|
contained_procedure (void)
|
contained_procedure (void)
|
{
|
{
|
gfc_state_data *s = gfc_state_stack;
|
gfc_state_data *s = gfc_state_stack;
|
|
|
if ((s->state == COMP_SUBROUTINE || s->state == COMP_FUNCTION)
|
if ((s->state == COMP_SUBROUTINE || s->state == COMP_FUNCTION)
|
&& s->previous != NULL && s->previous->state == COMP_CONTAINS)
|
&& s->previous != NULL && s->previous->state == COMP_CONTAINS)
|
return 1;
|
return 1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Set the kind of each enumerator. The kind is selected such that it is
|
/* Set the kind of each enumerator. The kind is selected such that it is
|
interoperable with the corresponding C enumeration type, making
|
interoperable with the corresponding C enumeration type, making
|
sure that -fshort-enums is honored. */
|
sure that -fshort-enums is honored. */
|
|
|
static void
|
static void
|
set_enum_kind(void)
|
set_enum_kind(void)
|
{
|
{
|
enumerator_history *current_history = NULL;
|
enumerator_history *current_history = NULL;
|
int kind;
|
int kind;
|
int i;
|
int i;
|
|
|
if (max_enum == NULL || enum_history == NULL)
|
if (max_enum == NULL || enum_history == NULL)
|
return;
|
return;
|
|
|
if (!flag_short_enums)
|
if (!flag_short_enums)
|
return;
|
return;
|
|
|
i = 0;
|
i = 0;
|
do
|
do
|
{
|
{
|
kind = gfc_integer_kinds[i++].kind;
|
kind = gfc_integer_kinds[i++].kind;
|
}
|
}
|
while (kind < gfc_c_int_kind
|
while (kind < gfc_c_int_kind
|
&& gfc_check_integer_range (max_enum->initializer->value.integer,
|
&& gfc_check_integer_range (max_enum->initializer->value.integer,
|
kind) != ARITH_OK);
|
kind) != ARITH_OK);
|
|
|
current_history = enum_history;
|
current_history = enum_history;
|
while (current_history != NULL)
|
while (current_history != NULL)
|
{
|
{
|
current_history->sym->ts.kind = kind;
|
current_history->sym->ts.kind = kind;
|
current_history = current_history->next;
|
current_history = current_history->next;
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Match any of the various end-block statements. Returns the type of
|
/* Match any of the various end-block statements. Returns the type of
|
END to the caller. The END INTERFACE, END IF, END DO, END SELECT
|
END to the caller. The END INTERFACE, END IF, END DO, END SELECT
|
and END BLOCK statements cannot be replaced by a single END statement. */
|
and END BLOCK statements cannot be replaced by a single END statement. */
|
|
|
match
|
match
|
gfc_match_end (gfc_statement *st)
|
gfc_match_end (gfc_statement *st)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_compile_state state;
|
gfc_compile_state state;
|
locus old_loc;
|
locus old_loc;
|
const char *block_name;
|
const char *block_name;
|
const char *target;
|
const char *target;
|
int eos_ok;
|
int eos_ok;
|
match m;
|
match m;
|
|
|
old_loc = gfc_current_locus;
|
old_loc = gfc_current_locus;
|
if (gfc_match ("end") != MATCH_YES)
|
if (gfc_match ("end") != MATCH_YES)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
state = gfc_current_state ();
|
state = gfc_current_state ();
|
block_name = gfc_current_block () == NULL
|
block_name = gfc_current_block () == NULL
|
? NULL : gfc_current_block ()->name;
|
? NULL : gfc_current_block ()->name;
|
|
|
if (state == COMP_BLOCK && !strcmp (block_name, "block@"))
|
if (state == COMP_BLOCK && !strcmp (block_name, "block@"))
|
block_name = NULL;
|
block_name = NULL;
|
|
|
if (state == COMP_CONTAINS || state == COMP_DERIVED_CONTAINS)
|
if (state == COMP_CONTAINS || state == COMP_DERIVED_CONTAINS)
|
{
|
{
|
state = gfc_state_stack->previous->state;
|
state = gfc_state_stack->previous->state;
|
block_name = gfc_state_stack->previous->sym == NULL
|
block_name = gfc_state_stack->previous->sym == NULL
|
? NULL : gfc_state_stack->previous->sym->name;
|
? NULL : gfc_state_stack->previous->sym->name;
|
}
|
}
|
|
|
switch (state)
|
switch (state)
|
{
|
{
|
case COMP_NONE:
|
case COMP_NONE:
|
case COMP_PROGRAM:
|
case COMP_PROGRAM:
|
*st = ST_END_PROGRAM;
|
*st = ST_END_PROGRAM;
|
target = " program";
|
target = " program";
|
eos_ok = 1;
|
eos_ok = 1;
|
break;
|
break;
|
|
|
case COMP_SUBROUTINE:
|
case COMP_SUBROUTINE:
|
*st = ST_END_SUBROUTINE;
|
*st = ST_END_SUBROUTINE;
|
target = " subroutine";
|
target = " subroutine";
|
eos_ok = !contained_procedure ();
|
eos_ok = !contained_procedure ();
|
break;
|
break;
|
|
|
case COMP_FUNCTION:
|
case COMP_FUNCTION:
|
*st = ST_END_FUNCTION;
|
*st = ST_END_FUNCTION;
|
target = " function";
|
target = " function";
|
eos_ok = !contained_procedure ();
|
eos_ok = !contained_procedure ();
|
break;
|
break;
|
|
|
case COMP_BLOCK_DATA:
|
case COMP_BLOCK_DATA:
|
*st = ST_END_BLOCK_DATA;
|
*st = ST_END_BLOCK_DATA;
|
target = " block data";
|
target = " block data";
|
eos_ok = 1;
|
eos_ok = 1;
|
break;
|
break;
|
|
|
case COMP_MODULE:
|
case COMP_MODULE:
|
*st = ST_END_MODULE;
|
*st = ST_END_MODULE;
|
target = " module";
|
target = " module";
|
eos_ok = 1;
|
eos_ok = 1;
|
break;
|
break;
|
|
|
case COMP_INTERFACE:
|
case COMP_INTERFACE:
|
*st = ST_END_INTERFACE;
|
*st = ST_END_INTERFACE;
|
target = " interface";
|
target = " interface";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_DERIVED:
|
case COMP_DERIVED:
|
case COMP_DERIVED_CONTAINS:
|
case COMP_DERIVED_CONTAINS:
|
*st = ST_END_TYPE;
|
*st = ST_END_TYPE;
|
target = " type";
|
target = " type";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_BLOCK:
|
case COMP_BLOCK:
|
*st = ST_END_BLOCK;
|
*st = ST_END_BLOCK;
|
target = " block";
|
target = " block";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_IF:
|
case COMP_IF:
|
*st = ST_ENDIF;
|
*st = ST_ENDIF;
|
target = " if";
|
target = " if";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_DO:
|
case COMP_DO:
|
*st = ST_ENDDO;
|
*st = ST_ENDDO;
|
target = " do";
|
target = " do";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_SELECT:
|
case COMP_SELECT:
|
case COMP_SELECT_TYPE:
|
case COMP_SELECT_TYPE:
|
*st = ST_END_SELECT;
|
*st = ST_END_SELECT;
|
target = " select";
|
target = " select";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_FORALL:
|
case COMP_FORALL:
|
*st = ST_END_FORALL;
|
*st = ST_END_FORALL;
|
target = " forall";
|
target = " forall";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_WHERE:
|
case COMP_WHERE:
|
*st = ST_END_WHERE;
|
*st = ST_END_WHERE;
|
target = " where";
|
target = " where";
|
eos_ok = 0;
|
eos_ok = 0;
|
break;
|
break;
|
|
|
case COMP_ENUM:
|
case COMP_ENUM:
|
*st = ST_END_ENUM;
|
*st = ST_END_ENUM;
|
target = " enum";
|
target = " enum";
|
eos_ok = 0;
|
eos_ok = 0;
|
last_initializer = NULL;
|
last_initializer = NULL;
|
set_enum_kind ();
|
set_enum_kind ();
|
gfc_free_enum_history ();
|
gfc_free_enum_history ();
|
break;
|
break;
|
|
|
default:
|
default:
|
gfc_error ("Unexpected END statement at %C");
|
gfc_error ("Unexpected END statement at %C");
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
if (!eos_ok)
|
if (!eos_ok)
|
{
|
{
|
/* We would have required END [something]. */
|
/* We would have required END [something]. */
|
gfc_error ("%s statement expected at %L",
|
gfc_error ("%s statement expected at %L",
|
gfc_ascii_statement (*st), &old_loc);
|
gfc_ascii_statement (*st), &old_loc);
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
/* Verify that we've got the sort of end-block that we're expecting. */
|
/* Verify that we've got the sort of end-block that we're expecting. */
|
if (gfc_match (target) != MATCH_YES)
|
if (gfc_match (target) != MATCH_YES)
|
{
|
{
|
gfc_error ("Expecting %s statement at %C", gfc_ascii_statement (*st));
|
gfc_error ("Expecting %s statement at %C", gfc_ascii_statement (*st));
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* If we're at the end, make sure a block name wasn't required. */
|
/* If we're at the end, make sure a block name wasn't required. */
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
|
|
if (*st != ST_ENDDO && *st != ST_ENDIF && *st != ST_END_SELECT
|
if (*st != ST_ENDDO && *st != ST_ENDIF && *st != ST_END_SELECT
|
&& *st != ST_END_FORALL && *st != ST_END_WHERE && *st != ST_END_BLOCK)
|
&& *st != ST_END_FORALL && *st != ST_END_WHERE && *st != ST_END_BLOCK)
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
if (!block_name)
|
if (!block_name)
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
gfc_error ("Expected block name of '%s' in %s statement at %C",
|
gfc_error ("Expected block name of '%s' in %s statement at %C",
|
block_name, gfc_ascii_statement (*st));
|
block_name, gfc_ascii_statement (*st));
|
|
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* END INTERFACE has a special handler for its several possible endings. */
|
/* END INTERFACE has a special handler for its several possible endings. */
|
if (*st == ST_END_INTERFACE)
|
if (*st == ST_END_INTERFACE)
|
return gfc_match_end_interface ();
|
return gfc_match_end_interface ();
|
|
|
/* We haven't hit the end of statement, so what is left must be an
|
/* We haven't hit the end of statement, so what is left must be an
|
end-name. */
|
end-name. */
|
m = gfc_match_space ();
|
m = gfc_match_space ();
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
|
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
gfc_error ("Expected terminating name at %C");
|
gfc_error ("Expected terminating name at %C");
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
if (block_name == NULL)
|
if (block_name == NULL)
|
goto syntax;
|
goto syntax;
|
|
|
if (strcmp (name, block_name) != 0 && strcmp (block_name, "ppr@") != 0)
|
if (strcmp (name, block_name) != 0 && strcmp (block_name, "ppr@") != 0)
|
{
|
{
|
gfc_error ("Expected label '%s' for %s statement at %C", block_name,
|
gfc_error ("Expected label '%s' for %s statement at %C", block_name,
|
gfc_ascii_statement (*st));
|
gfc_ascii_statement (*st));
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
/* Procedure pointer as function result. */
|
/* Procedure pointer as function result. */
|
else if (strcmp (block_name, "ppr@") == 0
|
else if (strcmp (block_name, "ppr@") == 0
|
&& strcmp (name, gfc_current_block ()->ns->proc_name->name) != 0)
|
&& strcmp (name, gfc_current_block ()->ns->proc_name->name) != 0)
|
{
|
{
|
gfc_error ("Expected label '%s' for %s statement at %C",
|
gfc_error ("Expected label '%s' for %s statement at %C",
|
gfc_current_block ()->ns->proc_name->name,
|
gfc_current_block ()->ns->proc_name->name,
|
gfc_ascii_statement (*st));
|
gfc_ascii_statement (*st));
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_syntax_error (*st);
|
gfc_syntax_error (*st);
|
|
|
cleanup:
|
cleanup:
|
gfc_current_locus = old_loc;
|
gfc_current_locus = old_loc;
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
|
|
/***************** Attribute declaration statements ****************/
|
/***************** Attribute declaration statements ****************/
|
|
|
/* Set the attribute of a single variable. */
|
/* Set the attribute of a single variable. */
|
|
|
static match
|
static match
|
attr_decl1 (void)
|
attr_decl1 (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_array_spec *as;
|
gfc_array_spec *as;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
locus var_locus;
|
locus var_locus;
|
match m;
|
match m;
|
|
|
as = NULL;
|
as = NULL;
|
|
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
if (find_special (name, &sym, false))
|
if (find_special (name, &sym, false))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
var_locus = gfc_current_locus;
|
var_locus = gfc_current_locus;
|
|
|
/* Deal with possible array specification for certain attributes. */
|
/* Deal with possible array specification for certain attributes. */
|
if (current_attr.dimension
|
if (current_attr.dimension
|
|| current_attr.allocatable
|
|| current_attr.allocatable
|
|| current_attr.pointer
|
|| current_attr.pointer
|
|| current_attr.target)
|
|| current_attr.target)
|
{
|
{
|
m = gfc_match_array_spec (&as);
|
m = gfc_match_array_spec (&as);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
|
|
if (current_attr.dimension && m == MATCH_NO)
|
if (current_attr.dimension && m == MATCH_NO)
|
{
|
{
|
gfc_error ("Missing array specification at %L in DIMENSION "
|
gfc_error ("Missing array specification at %L in DIMENSION "
|
"statement", &var_locus);
|
"statement", &var_locus);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (current_attr.dimension && sym->value)
|
if (current_attr.dimension && sym->value)
|
{
|
{
|
gfc_error ("Dimensions specified for %s at %L after its "
|
gfc_error ("Dimensions specified for %s at %L after its "
|
"initialisation", sym->name, &var_locus);
|
"initialisation", sym->name, &var_locus);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if ((current_attr.allocatable || current_attr.pointer)
|
if ((current_attr.allocatable || current_attr.pointer)
|
&& (m == MATCH_YES) && (as->type != AS_DEFERRED))
|
&& (m == MATCH_YES) && (as->type != AS_DEFERRED))
|
{
|
{
|
gfc_error ("Array specification must be deferred at %L", &var_locus);
|
gfc_error ("Array specification must be deferred at %L", &var_locus);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
/* Update symbol table. DIMENSION attribute is set in
|
/* Update symbol table. DIMENSION attribute is set in
|
gfc_set_array_spec(). For CLASS variables, this must be applied
|
gfc_set_array_spec(). For CLASS variables, this must be applied
|
to the first component, or '$data' field. */
|
to the first component, or '$data' field. */
|
if (sym->ts.type == BT_CLASS && sym->ts.u.derived)
|
if (sym->ts.type == BT_CLASS && sym->ts.u.derived)
|
{
|
{
|
gfc_component *comp;
|
gfc_component *comp;
|
comp = gfc_find_component (sym->ts.u.derived, "$data", true, true);
|
comp = gfc_find_component (sym->ts.u.derived, "$data", true, true);
|
if (comp == NULL || gfc_copy_attr (&comp->attr, ¤t_attr,
|
if (comp == NULL || gfc_copy_attr (&comp->attr, ¤t_attr,
|
&var_locus) == FAILURE)
|
&var_locus) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
sym->attr.class_ok = (sym->attr.class_ok
|
sym->attr.class_ok = (sym->attr.class_ok
|
|| current_attr.allocatable
|
|| current_attr.allocatable
|
|| current_attr.pointer);
|
|| current_attr.pointer);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (current_attr.dimension == 0
|
if (current_attr.dimension == 0
|
&& gfc_copy_attr (&sym->attr, ¤t_attr, &var_locus) == FAILURE)
|
&& gfc_copy_attr (&sym->attr, ¤t_attr, &var_locus) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
if (gfc_set_array_spec (sym, as, &var_locus) == FAILURE)
|
if (gfc_set_array_spec (sym, as, &var_locus) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (sym->attr.cray_pointee && sym->as != NULL)
|
if (sym->attr.cray_pointee && sym->as != NULL)
|
{
|
{
|
/* Fix the array spec. */
|
/* Fix the array spec. */
|
m = gfc_mod_pointee_as (sym->as);
|
m = gfc_mod_pointee_as (sym->as);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (gfc_add_attribute (&sym->attr, &var_locus) == FAILURE)
|
if (gfc_add_attribute (&sym->attr, &var_locus) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if ((current_attr.external || current_attr.intrinsic)
|
if ((current_attr.external || current_attr.intrinsic)
|
&& sym->attr.flavor != FL_PROCEDURE
|
&& sym->attr.flavor != FL_PROCEDURE
|
&& gfc_add_flavor (&sym->attr, FL_PROCEDURE, sym->name, NULL) == FAILURE)
|
&& gfc_add_flavor (&sym->attr, FL_PROCEDURE, sym->name, NULL) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
add_hidden_procptr_result (sym);
|
add_hidden_procptr_result (sym);
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
cleanup:
|
cleanup:
|
gfc_free_array_spec (as);
|
gfc_free_array_spec (as);
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Generic attribute declaration subroutine. Used for attributes that
|
/* Generic attribute declaration subroutine. Used for attributes that
|
just have a list of names. */
|
just have a list of names. */
|
|
|
static match
|
static match
|
attr_decl (void)
|
attr_decl (void)
|
{
|
{
|
match m;
|
match m;
|
|
|
/* Gobble the optional double colon, by simply ignoring the result
|
/* Gobble the optional double colon, by simply ignoring the result
|
of gfc_match(). */
|
of gfc_match(). */
|
gfc_match (" ::");
|
gfc_match (" ::");
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
m = attr_decl1 ();
|
m = attr_decl1 ();
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
break;
|
break;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
m = MATCH_YES;
|
m = MATCH_YES;
|
break;
|
break;
|
}
|
}
|
|
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
{
|
{
|
gfc_error ("Unexpected character in variable list at %C");
|
gfc_error ("Unexpected character in variable list at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* This routine matches Cray Pointer declarations of the form:
|
/* This routine matches Cray Pointer declarations of the form:
|
pointer ( <pointer>, <pointee> )
|
pointer ( <pointer>, <pointee> )
|
or
|
or
|
pointer ( <pointer1>, <pointee1> ), ( <pointer2>, <pointee2> ), ...
|
pointer ( <pointer1>, <pointee1> ), ( <pointer2>, <pointee2> ), ...
|
The pointer, if already declared, should be an integer. Otherwise, we
|
The pointer, if already declared, should be an integer. Otherwise, we
|
set it as BT_INTEGER with kind gfc_index_integer_kind. The pointee may
|
set it as BT_INTEGER with kind gfc_index_integer_kind. The pointee may
|
be either a scalar, or an array declaration. No space is allocated for
|
be either a scalar, or an array declaration. No space is allocated for
|
the pointee. For the statement
|
the pointee. For the statement
|
pointer (ipt, ar(10))
|
pointer (ipt, ar(10))
|
any subsequent uses of ar will be translated (in C-notation) as
|
any subsequent uses of ar will be translated (in C-notation) as
|
ar(i) => ((<type> *) ipt)(i)
|
ar(i) => ((<type> *) ipt)(i)
|
After gimplification, pointee variable will disappear in the code. */
|
After gimplification, pointee variable will disappear in the code. */
|
|
|
static match
|
static match
|
cray_pointer_decl (void)
|
cray_pointer_decl (void)
|
{
|
{
|
match m;
|
match m;
|
gfc_array_spec *as;
|
gfc_array_spec *as;
|
gfc_symbol *cptr; /* Pointer symbol. */
|
gfc_symbol *cptr; /* Pointer symbol. */
|
gfc_symbol *cpte; /* Pointee symbol. */
|
gfc_symbol *cpte; /* Pointee symbol. */
|
locus var_locus;
|
locus var_locus;
|
bool done = false;
|
bool done = false;
|
|
|
while (!done)
|
while (!done)
|
{
|
{
|
if (gfc_match_char ('(') != MATCH_YES)
|
if (gfc_match_char ('(') != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected '(' at %C");
|
gfc_error ("Expected '(' at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Match pointer. */
|
/* Match pointer. */
|
var_locus = gfc_current_locus;
|
var_locus = gfc_current_locus;
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
gfc_add_cray_pointer (¤t_attr, &var_locus);
|
gfc_add_cray_pointer (¤t_attr, &var_locus);
|
current_ts.type = BT_INTEGER;
|
current_ts.type = BT_INTEGER;
|
current_ts.kind = gfc_index_integer_kind;
|
current_ts.kind = gfc_index_integer_kind;
|
|
|
m = gfc_match_symbol (&cptr, 0);
|
m = gfc_match_symbol (&cptr, 0);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected variable name at %C");
|
gfc_error ("Expected variable name at %C");
|
return m;
|
return m;
|
}
|
}
|
|
|
if (gfc_add_cray_pointer (&cptr->attr, &var_locus) == FAILURE)
|
if (gfc_add_cray_pointer (&cptr->attr, &var_locus) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
gfc_set_sym_referenced (cptr);
|
gfc_set_sym_referenced (cptr);
|
|
|
if (cptr->ts.type == BT_UNKNOWN) /* Override the type, if necessary. */
|
if (cptr->ts.type == BT_UNKNOWN) /* Override the type, if necessary. */
|
{
|
{
|
cptr->ts.type = BT_INTEGER;
|
cptr->ts.type = BT_INTEGER;
|
cptr->ts.kind = gfc_index_integer_kind;
|
cptr->ts.kind = gfc_index_integer_kind;
|
}
|
}
|
else if (cptr->ts.type != BT_INTEGER)
|
else if (cptr->ts.type != BT_INTEGER)
|
{
|
{
|
gfc_error ("Cray pointer at %C must be an integer");
|
gfc_error ("Cray pointer at %C must be an integer");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (cptr->ts.kind < gfc_index_integer_kind)
|
else if (cptr->ts.kind < gfc_index_integer_kind)
|
gfc_warning ("Cray pointer at %C has %d bytes of precision;"
|
gfc_warning ("Cray pointer at %C has %d bytes of precision;"
|
" memory addresses require %d bytes",
|
" memory addresses require %d bytes",
|
cptr->ts.kind, gfc_index_integer_kind);
|
cptr->ts.kind, gfc_index_integer_kind);
|
|
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected \",\" at %C");
|
gfc_error ("Expected \",\" at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Match Pointee. */
|
/* Match Pointee. */
|
var_locus = gfc_current_locus;
|
var_locus = gfc_current_locus;
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
gfc_add_cray_pointee (¤t_attr, &var_locus);
|
gfc_add_cray_pointee (¤t_attr, &var_locus);
|
current_ts.type = BT_UNKNOWN;
|
current_ts.type = BT_UNKNOWN;
|
current_ts.kind = 0;
|
current_ts.kind = 0;
|
|
|
m = gfc_match_symbol (&cpte, 0);
|
m = gfc_match_symbol (&cpte, 0);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected variable name at %C");
|
gfc_error ("Expected variable name at %C");
|
return m;
|
return m;
|
}
|
}
|
|
|
/* Check for an optional array spec. */
|
/* Check for an optional array spec. */
|
m = gfc_match_array_spec (&as);
|
m = gfc_match_array_spec (&as);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
{
|
{
|
gfc_free_array_spec (as);
|
gfc_free_array_spec (as);
|
return m;
|
return m;
|
}
|
}
|
else if (m == MATCH_NO)
|
else if (m == MATCH_NO)
|
{
|
{
|
gfc_free_array_spec (as);
|
gfc_free_array_spec (as);
|
as = NULL;
|
as = NULL;
|
}
|
}
|
|
|
if (gfc_add_cray_pointee (&cpte->attr, &var_locus) == FAILURE)
|
if (gfc_add_cray_pointee (&cpte->attr, &var_locus) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
gfc_set_sym_referenced (cpte);
|
gfc_set_sym_referenced (cpte);
|
|
|
if (cpte->as == NULL)
|
if (cpte->as == NULL)
|
{
|
{
|
if (gfc_set_array_spec (cpte, as, &var_locus) == FAILURE)
|
if (gfc_set_array_spec (cpte, as, &var_locus) == FAILURE)
|
gfc_internal_error ("Couldn't set Cray pointee array spec.");
|
gfc_internal_error ("Couldn't set Cray pointee array spec.");
|
}
|
}
|
else if (as != NULL)
|
else if (as != NULL)
|
{
|
{
|
gfc_error ("Duplicate array spec for Cray pointee at %C");
|
gfc_error ("Duplicate array spec for Cray pointee at %C");
|
gfc_free_array_spec (as);
|
gfc_free_array_spec (as);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
as = NULL;
|
as = NULL;
|
|
|
if (cpte->as != NULL)
|
if (cpte->as != NULL)
|
{
|
{
|
/* Fix array spec. */
|
/* Fix array spec. */
|
m = gfc_mod_pointee_as (cpte->as);
|
m = gfc_mod_pointee_as (cpte->as);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
}
|
}
|
|
|
/* Point the Pointee at the Pointer. */
|
/* Point the Pointee at the Pointer. */
|
cpte->cp_pointer = cptr;
|
cpte->cp_pointer = cptr;
|
|
|
if (gfc_match_char (')') != MATCH_YES)
|
if (gfc_match_char (')') != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected \")\" at %C");
|
gfc_error ("Expected \")\" at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
m = gfc_match_char (',');
|
m = gfc_match_char (',');
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
done = true; /* Stop searching for more declarations. */
|
done = true; /* Stop searching for more declarations. */
|
|
|
}
|
}
|
|
|
if (m == MATCH_ERROR /* Failed when trying to find ',' above. */
|
if (m == MATCH_ERROR /* Failed when trying to find ',' above. */
|
|| gfc_match_eos () != MATCH_YES)
|
|| gfc_match_eos () != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected \",\" or end of statement at %C");
|
gfc_error ("Expected \",\" or end of statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_external (void)
|
gfc_match_external (void)
|
{
|
{
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.external = 1;
|
current_attr.external = 1;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_intent (void)
|
gfc_match_intent (void)
|
{
|
{
|
sym_intent intent;
|
sym_intent intent;
|
|
|
/* This is not allowed within a BLOCK construct! */
|
/* This is not allowed within a BLOCK construct! */
|
if (gfc_current_state () == COMP_BLOCK)
|
if (gfc_current_state () == COMP_BLOCK)
|
{
|
{
|
gfc_error ("INTENT is not allowed inside of BLOCK at %C");
|
gfc_error ("INTENT is not allowed inside of BLOCK at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
intent = match_intent_spec ();
|
intent = match_intent_spec ();
|
if (intent == INTENT_UNKNOWN)
|
if (intent == INTENT_UNKNOWN)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.intent = intent;
|
current_attr.intent = intent;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_intrinsic (void)
|
gfc_match_intrinsic (void)
|
{
|
{
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.intrinsic = 1;
|
current_attr.intrinsic = 1;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_optional (void)
|
gfc_match_optional (void)
|
{
|
{
|
/* This is not allowed within a BLOCK construct! */
|
/* This is not allowed within a BLOCK construct! */
|
if (gfc_current_state () == COMP_BLOCK)
|
if (gfc_current_state () == COMP_BLOCK)
|
{
|
{
|
gfc_error ("OPTIONAL is not allowed inside of BLOCK at %C");
|
gfc_error ("OPTIONAL is not allowed inside of BLOCK at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.optional = 1;
|
current_attr.optional = 1;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_pointer (void)
|
gfc_match_pointer (void)
|
{
|
{
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
if (gfc_peek_ascii_char () == '(')
|
if (gfc_peek_ascii_char () == '(')
|
{
|
{
|
if (!gfc_option.flag_cray_pointer)
|
if (!gfc_option.flag_cray_pointer)
|
{
|
{
|
gfc_error ("Cray pointer declaration at %C requires -fcray-pointer "
|
gfc_error ("Cray pointer declaration at %C requires -fcray-pointer "
|
"flag");
|
"flag");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
return cray_pointer_decl ();
|
return cray_pointer_decl ();
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.pointer = 1;
|
current_attr.pointer = 1;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_allocatable (void)
|
gfc_match_allocatable (void)
|
{
|
{
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.allocatable = 1;
|
current_attr.allocatable = 1;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_dimension (void)
|
gfc_match_dimension (void)
|
{
|
{
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.dimension = 1;
|
current_attr.dimension = 1;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_target (void)
|
gfc_match_target (void)
|
{
|
{
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
current_attr.target = 1;
|
current_attr.target = 1;
|
|
|
return attr_decl ();
|
return attr_decl ();
|
}
|
}
|
|
|
|
|
/* Match the list of entities being specified in a PUBLIC or PRIVATE
|
/* Match the list of entities being specified in a PUBLIC or PRIVATE
|
statement. */
|
statement. */
|
|
|
static match
|
static match
|
access_attr_decl (gfc_statement st)
|
access_attr_decl (gfc_statement st)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
interface_type type;
|
interface_type type;
|
gfc_user_op *uop;
|
gfc_user_op *uop;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_intrinsic_op op;
|
gfc_intrinsic_op op;
|
match m;
|
match m;
|
|
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
goto done;
|
goto done;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
m = gfc_match_generic_spec (&type, name, &op);
|
m = gfc_match_generic_spec (&type, name, &op);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
switch (type)
|
switch (type)
|
{
|
{
|
case INTERFACE_NAMELESS:
|
case INTERFACE_NAMELESS:
|
case INTERFACE_ABSTRACT:
|
case INTERFACE_ABSTRACT:
|
goto syntax;
|
goto syntax;
|
|
|
case INTERFACE_GENERIC:
|
case INTERFACE_GENERIC:
|
if (gfc_get_symbol (name, NULL, &sym))
|
if (gfc_get_symbol (name, NULL, &sym))
|
goto done;
|
goto done;
|
|
|
if (gfc_add_access (&sym->attr, (st == ST_PUBLIC)
|
if (gfc_add_access (&sym->attr, (st == ST_PUBLIC)
|
? ACCESS_PUBLIC : ACCESS_PRIVATE,
|
? ACCESS_PUBLIC : ACCESS_PRIVATE,
|
sym->name, NULL) == FAILURE)
|
sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
break;
|
break;
|
|
|
case INTERFACE_INTRINSIC_OP:
|
case INTERFACE_INTRINSIC_OP:
|
if (gfc_current_ns->operator_access[op] == ACCESS_UNKNOWN)
|
if (gfc_current_ns->operator_access[op] == ACCESS_UNKNOWN)
|
{
|
{
|
gfc_current_ns->operator_access[op] =
|
gfc_current_ns->operator_access[op] =
|
(st == ST_PUBLIC) ? ACCESS_PUBLIC : ACCESS_PRIVATE;
|
(st == ST_PUBLIC) ? ACCESS_PUBLIC : ACCESS_PRIVATE;
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_error ("Access specification of the %s operator at %C has "
|
gfc_error ("Access specification of the %s operator at %C has "
|
"already been specified", gfc_op2string (op));
|
"already been specified", gfc_op2string (op));
|
goto done;
|
goto done;
|
}
|
}
|
|
|
break;
|
break;
|
|
|
case INTERFACE_USER_OP:
|
case INTERFACE_USER_OP:
|
uop = gfc_get_uop (name);
|
uop = gfc_get_uop (name);
|
|
|
if (uop->access == ACCESS_UNKNOWN)
|
if (uop->access == ACCESS_UNKNOWN)
|
{
|
{
|
uop->access = (st == ST_PUBLIC)
|
uop->access = (st == ST_PUBLIC)
|
? ACCESS_PUBLIC : ACCESS_PRIVATE;
|
? ACCESS_PUBLIC : ACCESS_PRIVATE;
|
}
|
}
|
else
|
else
|
{
|
{
|
gfc_error ("Access specification of the .%s. operator at %C "
|
gfc_error ("Access specification of the .%s. operator at %C "
|
"has already been specified", sym->name);
|
"has already been specified", sym->name);
|
goto done;
|
goto done;
|
}
|
}
|
|
|
break;
|
break;
|
}
|
}
|
|
|
if (gfc_match_char (',') == MATCH_NO)
|
if (gfc_match_char (',') == MATCH_NO)
|
break;
|
break;
|
}
|
}
|
|
|
if (gfc_match_eos () != MATCH_YES)
|
if (gfc_match_eos () != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_syntax_error (st);
|
gfc_syntax_error (st);
|
|
|
done:
|
done:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_protected (void)
|
gfc_match_protected (void)
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
|
|
if (gfc_current_ns->proc_name->attr.flavor != FL_MODULE)
|
if (gfc_current_ns->proc_name->attr.flavor != FL_MODULE)
|
{
|
{
|
gfc_error ("PROTECTED at %C only allowed in specification "
|
gfc_error ("PROTECTED at %C only allowed in specification "
|
"part of a module");
|
"part of a module");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
}
|
}
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: PROTECTED statement at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: PROTECTED statement at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
{
|
{
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
for(;;)
|
for(;;)
|
{
|
{
|
m = gfc_match_symbol (&sym, 0);
|
m = gfc_match_symbol (&sym, 0);
|
switch (m)
|
switch (m)
|
{
|
{
|
case MATCH_YES:
|
case MATCH_YES:
|
if (gfc_add_protected (&sym->attr, sym->name, &gfc_current_locus)
|
if (gfc_add_protected (&sym->attr, sym->name, &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
goto next_item;
|
goto next_item;
|
|
|
case MATCH_NO:
|
case MATCH_NO:
|
break;
|
break;
|
|
|
case MATCH_ERROR:
|
case MATCH_ERROR:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
next_item:
|
next_item:
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in PROTECTED statement at %C");
|
gfc_error ("Syntax error in PROTECTED statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* The PRIVATE statement is a bit weird in that it can be an attribute
|
/* The PRIVATE statement is a bit weird in that it can be an attribute
|
declaration, but also works as a standalone statement inside of a
|
declaration, but also works as a standalone statement inside of a
|
type declaration or a module. */
|
type declaration or a module. */
|
|
|
match
|
match
|
gfc_match_private (gfc_statement *st)
|
gfc_match_private (gfc_statement *st)
|
{
|
{
|
|
|
if (gfc_match ("private") != MATCH_YES)
|
if (gfc_match ("private") != MATCH_YES)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
if (gfc_current_state () != COMP_MODULE
|
if (gfc_current_state () != COMP_MODULE
|
&& !(gfc_current_state () == COMP_DERIVED
|
&& !(gfc_current_state () == COMP_DERIVED
|
&& gfc_state_stack->previous
|
&& gfc_state_stack->previous
|
&& gfc_state_stack->previous->state == COMP_MODULE)
|
&& gfc_state_stack->previous->state == COMP_MODULE)
|
&& !(gfc_current_state () == COMP_DERIVED_CONTAINS
|
&& !(gfc_current_state () == COMP_DERIVED_CONTAINS
|
&& gfc_state_stack->previous && gfc_state_stack->previous->previous
|
&& gfc_state_stack->previous && gfc_state_stack->previous->previous
|
&& gfc_state_stack->previous->previous->state == COMP_MODULE))
|
&& gfc_state_stack->previous->previous->state == COMP_MODULE))
|
{
|
{
|
gfc_error ("PRIVATE statement at %C is only allowed in the "
|
gfc_error ("PRIVATE statement at %C is only allowed in the "
|
"specification part of a module");
|
"specification part of a module");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_current_state () == COMP_DERIVED)
|
if (gfc_current_state () == COMP_DERIVED)
|
{
|
{
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
*st = ST_PRIVATE;
|
*st = ST_PRIVATE;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
gfc_syntax_error (ST_PRIVATE);
|
gfc_syntax_error (ST_PRIVATE);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
*st = ST_PRIVATE;
|
*st = ST_PRIVATE;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
*st = ST_ATTR_DECL;
|
*st = ST_ATTR_DECL;
|
return access_attr_decl (ST_PRIVATE);
|
return access_attr_decl (ST_PRIVATE);
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_public (gfc_statement *st)
|
gfc_match_public (gfc_statement *st)
|
{
|
{
|
|
|
if (gfc_match ("public") != MATCH_YES)
|
if (gfc_match ("public") != MATCH_YES)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
if (gfc_current_state () != COMP_MODULE)
|
if (gfc_current_state () != COMP_MODULE)
|
{
|
{
|
gfc_error ("PUBLIC statement at %C is only allowed in the "
|
gfc_error ("PUBLIC statement at %C is only allowed in the "
|
"specification part of a module");
|
"specification part of a module");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
*st = ST_PUBLIC;
|
*st = ST_PUBLIC;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
*st = ST_ATTR_DECL;
|
*st = ST_ATTR_DECL;
|
return access_attr_decl (ST_PUBLIC);
|
return access_attr_decl (ST_PUBLIC);
|
}
|
}
|
|
|
|
|
/* Workhorse for gfc_match_parameter. */
|
/* Workhorse for gfc_match_parameter. */
|
|
|
static match
|
static match
|
do_parm (void)
|
do_parm (void)
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_expr *init;
|
gfc_expr *init;
|
match m;
|
match m;
|
gfc_try t;
|
gfc_try t;
|
|
|
m = gfc_match_symbol (&sym, 0);
|
m = gfc_match_symbol (&sym, 0);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
gfc_error ("Expected variable name at %C in PARAMETER statement");
|
gfc_error ("Expected variable name at %C in PARAMETER statement");
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if (gfc_match_char ('=') == MATCH_NO)
|
if (gfc_match_char ('=') == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected = sign in PARAMETER statement at %C");
|
gfc_error ("Expected = sign in PARAMETER statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
m = gfc_match_init_expr (&init);
|
m = gfc_match_init_expr (&init);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
gfc_error ("Expected expression at %C in PARAMETER statement");
|
gfc_error ("Expected expression at %C in PARAMETER statement");
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if (sym->ts.type == BT_UNKNOWN
|
if (sym->ts.type == BT_UNKNOWN
|
&& gfc_set_default_type (sym, 1, NULL) == FAILURE)
|
&& gfc_set_default_type (sym, 1, NULL) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (gfc_check_assign_symbol (sym, init) == FAILURE
|
if (gfc_check_assign_symbol (sym, init) == FAILURE
|
|| gfc_add_flavor (&sym->attr, FL_PARAMETER, sym->name, NULL) == FAILURE)
|
|| gfc_add_flavor (&sym->attr, FL_PARAMETER, sym->name, NULL) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
if (sym->value)
|
if (sym->value)
|
{
|
{
|
gfc_error ("Initializing already initialized variable at %C");
|
gfc_error ("Initializing already initialized variable at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
t = add_init_expr_to_sym (sym->name, &init, &gfc_current_locus);
|
t = add_init_expr_to_sym (sym->name, &init, &gfc_current_locus);
|
return (t == SUCCESS) ? MATCH_YES : MATCH_ERROR;
|
return (t == SUCCESS) ? MATCH_YES : MATCH_ERROR;
|
|
|
cleanup:
|
cleanup:
|
gfc_free_expr (init);
|
gfc_free_expr (init);
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match a parameter statement, with the weird syntax that these have. */
|
/* Match a parameter statement, with the weird syntax that these have. */
|
|
|
match
|
match
|
gfc_match_parameter (void)
|
gfc_match_parameter (void)
|
{
|
{
|
match m;
|
match m;
|
|
|
if (gfc_match_char ('(') == MATCH_NO)
|
if (gfc_match_char ('(') == MATCH_NO)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
m = do_parm ();
|
m = do_parm ();
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
break;
|
break;
|
|
|
if (gfc_match (" )%t") == MATCH_YES)
|
if (gfc_match (" )%t") == MATCH_YES)
|
break;
|
break;
|
|
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
{
|
{
|
gfc_error ("Unexpected characters in PARAMETER statement at %C");
|
gfc_error ("Unexpected characters in PARAMETER statement at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Save statements have a special syntax. */
|
/* Save statements have a special syntax. */
|
|
|
match
|
match
|
gfc_match_save (void)
|
gfc_match_save (void)
|
{
|
{
|
char n[GFC_MAX_SYMBOL_LEN+1];
|
char n[GFC_MAX_SYMBOL_LEN+1];
|
gfc_common_head *c;
|
gfc_common_head *c;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
{
|
{
|
if (gfc_current_ns->seen_save)
|
if (gfc_current_ns->seen_save)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_LEGACY, "Blanket SAVE statement at %C "
|
if (gfc_notify_std (GFC_STD_LEGACY, "Blanket SAVE statement at %C "
|
"follows previous SAVE statement")
|
"follows previous SAVE statement")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
gfc_current_ns->save_all = gfc_current_ns->seen_save = 1;
|
gfc_current_ns->save_all = gfc_current_ns->seen_save = 1;
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
if (gfc_current_ns->save_all)
|
if (gfc_current_ns->save_all)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_LEGACY, "SAVE statement at %C follows "
|
if (gfc_notify_std (GFC_STD_LEGACY, "SAVE statement at %C follows "
|
"blanket SAVE statement")
|
"blanket SAVE statement")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
gfc_match (" ::");
|
gfc_match (" ::");
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
m = gfc_match_symbol (&sym, 0);
|
m = gfc_match_symbol (&sym, 0);
|
switch (m)
|
switch (m)
|
{
|
{
|
case MATCH_YES:
|
case MATCH_YES:
|
if (gfc_add_save (&sym->attr, sym->name, &gfc_current_locus)
|
if (gfc_add_save (&sym->attr, sym->name, &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
goto next_item;
|
goto next_item;
|
|
|
case MATCH_NO:
|
case MATCH_NO:
|
break;
|
break;
|
|
|
case MATCH_ERROR:
|
case MATCH_ERROR:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
m = gfc_match (" / %n /", &n);
|
m = gfc_match (" / %n /", &n);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
|
|
c = gfc_get_common (n, 0);
|
c = gfc_get_common (n, 0);
|
c->saved = 1;
|
c->saved = 1;
|
|
|
gfc_current_ns->seen_save = 1;
|
gfc_current_ns->seen_save = 1;
|
|
|
next_item:
|
next_item:
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in SAVE statement at %C");
|
gfc_error ("Syntax error in SAVE statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_value (void)
|
gfc_match_value (void)
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
|
|
/* This is not allowed within a BLOCK construct! */
|
/* This is not allowed within a BLOCK construct! */
|
if (gfc_current_state () == COMP_BLOCK)
|
if (gfc_current_state () == COMP_BLOCK)
|
{
|
{
|
gfc_error ("VALUE is not allowed inside of BLOCK at %C");
|
gfc_error ("VALUE is not allowed inside of BLOCK at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: VALUE statement at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: VALUE statement at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
{
|
{
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
for(;;)
|
for(;;)
|
{
|
{
|
m = gfc_match_symbol (&sym, 0);
|
m = gfc_match_symbol (&sym, 0);
|
switch (m)
|
switch (m)
|
{
|
{
|
case MATCH_YES:
|
case MATCH_YES:
|
if (gfc_add_value (&sym->attr, sym->name, &gfc_current_locus)
|
if (gfc_add_value (&sym->attr, sym->name, &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
goto next_item;
|
goto next_item;
|
|
|
case MATCH_NO:
|
case MATCH_NO:
|
break;
|
break;
|
|
|
case MATCH_ERROR:
|
case MATCH_ERROR:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
next_item:
|
next_item:
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in VALUE statement at %C");
|
gfc_error ("Syntax error in VALUE statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_volatile (void)
|
gfc_match_volatile (void)
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: VOLATILE statement at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: VOLATILE statement at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
{
|
{
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
for(;;)
|
for(;;)
|
{
|
{
|
/* VOLATILE is special because it can be added to host-associated
|
/* VOLATILE is special because it can be added to host-associated
|
symbols locally. */
|
symbols locally. */
|
m = gfc_match_symbol (&sym, 1);
|
m = gfc_match_symbol (&sym, 1);
|
switch (m)
|
switch (m)
|
{
|
{
|
case MATCH_YES:
|
case MATCH_YES:
|
if (gfc_add_volatile (&sym->attr, sym->name, &gfc_current_locus)
|
if (gfc_add_volatile (&sym->attr, sym->name, &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
goto next_item;
|
goto next_item;
|
|
|
case MATCH_NO:
|
case MATCH_NO:
|
break;
|
break;
|
|
|
case MATCH_ERROR:
|
case MATCH_ERROR:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
next_item:
|
next_item:
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in VOLATILE statement at %C");
|
gfc_error ("Syntax error in VOLATILE statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
match
|
match
|
gfc_match_asynchronous (void)
|
gfc_match_asynchronous (void)
|
{
|
{
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ASYNCHRONOUS statement at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ASYNCHRONOUS statement at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
if (gfc_match (" ::") == MATCH_NO && gfc_match_space () == MATCH_NO)
|
{
|
{
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
for(;;)
|
for(;;)
|
{
|
{
|
/* ASYNCHRONOUS is special because it can be added to host-associated
|
/* ASYNCHRONOUS is special because it can be added to host-associated
|
symbols locally. */
|
symbols locally. */
|
m = gfc_match_symbol (&sym, 1);
|
m = gfc_match_symbol (&sym, 1);
|
switch (m)
|
switch (m)
|
{
|
{
|
case MATCH_YES:
|
case MATCH_YES:
|
if (gfc_add_asynchronous (&sym->attr, sym->name, &gfc_current_locus)
|
if (gfc_add_asynchronous (&sym->attr, sym->name, &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
goto next_item;
|
goto next_item;
|
|
|
case MATCH_NO:
|
case MATCH_NO:
|
break;
|
break;
|
|
|
case MATCH_ERROR:
|
case MATCH_ERROR:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
next_item:
|
next_item:
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in ASYNCHRONOUS statement at %C");
|
gfc_error ("Syntax error in ASYNCHRONOUS statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Match a module procedure statement. Note that we have to modify
|
/* Match a module procedure statement. Note that we have to modify
|
symbols in the parent's namespace because the current one was there
|
symbols in the parent's namespace because the current one was there
|
to receive symbols that are in an interface's formal argument list. */
|
to receive symbols that are in an interface's formal argument list. */
|
|
|
match
|
match
|
gfc_match_modproc (void)
|
gfc_match_modproc (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
gfc_namespace *module_ns;
|
gfc_namespace *module_ns;
|
gfc_interface *old_interface_head, *interface;
|
gfc_interface *old_interface_head, *interface;
|
|
|
if (gfc_state_stack->state != COMP_INTERFACE
|
if (gfc_state_stack->state != COMP_INTERFACE
|
|| gfc_state_stack->previous == NULL
|
|| gfc_state_stack->previous == NULL
|
|| current_interface.type == INTERFACE_NAMELESS
|
|| current_interface.type == INTERFACE_NAMELESS
|
|| current_interface.type == INTERFACE_ABSTRACT)
|
|| current_interface.type == INTERFACE_ABSTRACT)
|
{
|
{
|
gfc_error ("MODULE PROCEDURE at %C must be in a generic module "
|
gfc_error ("MODULE PROCEDURE at %C must be in a generic module "
|
"interface");
|
"interface");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
module_ns = gfc_current_ns->parent;
|
module_ns = gfc_current_ns->parent;
|
for (; module_ns; module_ns = module_ns->parent)
|
for (; module_ns; module_ns = module_ns->parent)
|
if (module_ns->proc_name->attr.flavor == FL_MODULE
|
if (module_ns->proc_name->attr.flavor == FL_MODULE
|
|| module_ns->proc_name->attr.flavor == FL_PROGRAM
|
|| module_ns->proc_name->attr.flavor == FL_PROGRAM
|
|| (module_ns->proc_name->attr.flavor == FL_PROCEDURE
|
|| (module_ns->proc_name->attr.flavor == FL_PROCEDURE
|
&& !module_ns->proc_name->attr.contained))
|
&& !module_ns->proc_name->attr.contained))
|
break;
|
break;
|
|
|
if (module_ns == NULL)
|
if (module_ns == NULL)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Store the current state of the interface. We will need it if we
|
/* Store the current state of the interface. We will need it if we
|
end up with a syntax error and need to recover. */
|
end up with a syntax error and need to recover. */
|
old_interface_head = gfc_current_interface_head ();
|
old_interface_head = gfc_current_interface_head ();
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
locus old_locus = gfc_current_locus;
|
locus old_locus = gfc_current_locus;
|
bool last = false;
|
bool last = false;
|
|
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto syntax;
|
goto syntax;
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Check for syntax error before starting to add symbols to the
|
/* Check for syntax error before starting to add symbols to the
|
current namespace. */
|
current namespace. */
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
last = true;
|
last = true;
|
if (!last && gfc_match_char (',') != MATCH_YES)
|
if (!last && gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
/* Now we're sure the syntax is valid, we process this item
|
/* Now we're sure the syntax is valid, we process this item
|
further. */
|
further. */
|
if (gfc_get_symbol (name, module_ns, &sym))
|
if (gfc_get_symbol (name, module_ns, &sym))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (sym->attr.intrinsic)
|
if (sym->attr.intrinsic)
|
{
|
{
|
gfc_error ("Intrinsic procedure at %L cannot be a MODULE "
|
gfc_error ("Intrinsic procedure at %L cannot be a MODULE "
|
"PROCEDURE", &old_locus);
|
"PROCEDURE", &old_locus);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (sym->attr.proc != PROC_MODULE
|
if (sym->attr.proc != PROC_MODULE
|
&& gfc_add_procedure (&sym->attr, PROC_MODULE,
|
&& gfc_add_procedure (&sym->attr, PROC_MODULE,
|
sym->name, NULL) == FAILURE)
|
sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_interface (sym) == FAILURE)
|
if (gfc_add_interface (sym) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
sym->attr.mod_proc = 1;
|
sym->attr.mod_proc = 1;
|
sym->declared_at = old_locus;
|
sym->declared_at = old_locus;
|
|
|
if (last)
|
if (last)
|
break;
|
break;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
/* Restore the previous state of the interface. */
|
/* Restore the previous state of the interface. */
|
interface = gfc_current_interface_head ();
|
interface = gfc_current_interface_head ();
|
gfc_set_current_interface_head (old_interface_head);
|
gfc_set_current_interface_head (old_interface_head);
|
|
|
/* Free the new interfaces. */
|
/* Free the new interfaces. */
|
while (interface != old_interface_head)
|
while (interface != old_interface_head)
|
{
|
{
|
gfc_interface *i = interface->next;
|
gfc_interface *i = interface->next;
|
gfc_free (interface);
|
gfc_free (interface);
|
interface = i;
|
interface = i;
|
}
|
}
|
|
|
/* And issue a syntax error. */
|
/* And issue a syntax error. */
|
gfc_syntax_error (ST_MODULE_PROC);
|
gfc_syntax_error (ST_MODULE_PROC);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Check a derived type that is being extended. */
|
/* Check a derived type that is being extended. */
|
static gfc_symbol*
|
static gfc_symbol*
|
check_extended_derived_type (char *name)
|
check_extended_derived_type (char *name)
|
{
|
{
|
gfc_symbol *extended;
|
gfc_symbol *extended;
|
|
|
if (gfc_find_symbol (name, gfc_current_ns, 1, &extended))
|
if (gfc_find_symbol (name, gfc_current_ns, 1, &extended))
|
{
|
{
|
gfc_error ("Ambiguous symbol in TYPE definition at %C");
|
gfc_error ("Ambiguous symbol in TYPE definition at %C");
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
if (!extended)
|
if (!extended)
|
{
|
{
|
gfc_error ("No such symbol in TYPE definition at %C");
|
gfc_error ("No such symbol in TYPE definition at %C");
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
if (extended->attr.flavor != FL_DERIVED)
|
if (extended->attr.flavor != FL_DERIVED)
|
{
|
{
|
gfc_error ("'%s' in EXTENDS expression at %C is not a "
|
gfc_error ("'%s' in EXTENDS expression at %C is not a "
|
"derived type", name);
|
"derived type", name);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
if (extended->attr.is_bind_c)
|
if (extended->attr.is_bind_c)
|
{
|
{
|
gfc_error ("'%s' cannot be extended at %C because it "
|
gfc_error ("'%s' cannot be extended at %C because it "
|
"is BIND(C)", extended->name);
|
"is BIND(C)", extended->name);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
if (extended->attr.sequence)
|
if (extended->attr.sequence)
|
{
|
{
|
gfc_error ("'%s' cannot be extended at %C because it "
|
gfc_error ("'%s' cannot be extended at %C because it "
|
"is a SEQUENCE type", extended->name);
|
"is a SEQUENCE type", extended->name);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
return extended;
|
return extended;
|
}
|
}
|
|
|
|
|
/* Match the optional attribute specifiers for a type declaration.
|
/* Match the optional attribute specifiers for a type declaration.
|
Return MATCH_ERROR if an error is encountered in one of the handled
|
Return MATCH_ERROR if an error is encountered in one of the handled
|
attributes (public, private, bind(c)), MATCH_NO if what's found is
|
attributes (public, private, bind(c)), MATCH_NO if what's found is
|
not a handled attribute, and MATCH_YES otherwise. TODO: More error
|
not a handled attribute, and MATCH_YES otherwise. TODO: More error
|
checking on attribute conflicts needs to be done. */
|
checking on attribute conflicts needs to be done. */
|
|
|
match
|
match
|
gfc_get_type_attr_spec (symbol_attribute *attr, char *name)
|
gfc_get_type_attr_spec (symbol_attribute *attr, char *name)
|
{
|
{
|
/* See if the derived type is marked as private. */
|
/* See if the derived type is marked as private. */
|
if (gfc_match (" , private") == MATCH_YES)
|
if (gfc_match (" , private") == MATCH_YES)
|
{
|
{
|
if (gfc_current_state () != COMP_MODULE)
|
if (gfc_current_state () != COMP_MODULE)
|
{
|
{
|
gfc_error ("Derived type at %C can only be PRIVATE in the "
|
gfc_error ("Derived type at %C can only be PRIVATE in the "
|
"specification part of a module");
|
"specification part of a module");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_add_access (attr, ACCESS_PRIVATE, NULL, NULL) == FAILURE)
|
if (gfc_add_access (attr, ACCESS_PRIVATE, NULL, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (gfc_match (" , public") == MATCH_YES)
|
else if (gfc_match (" , public") == MATCH_YES)
|
{
|
{
|
if (gfc_current_state () != COMP_MODULE)
|
if (gfc_current_state () != COMP_MODULE)
|
{
|
{
|
gfc_error ("Derived type at %C can only be PUBLIC in the "
|
gfc_error ("Derived type at %C can only be PUBLIC in the "
|
"specification part of a module");
|
"specification part of a module");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_add_access (attr, ACCESS_PUBLIC, NULL, NULL) == FAILURE)
|
if (gfc_add_access (attr, ACCESS_PUBLIC, NULL, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (gfc_match (" , bind ( c )") == MATCH_YES)
|
else if (gfc_match (" , bind ( c )") == MATCH_YES)
|
{
|
{
|
/* If the type is defined to be bind(c) it then needs to make
|
/* If the type is defined to be bind(c) it then needs to make
|
sure that all fields are interoperable. This will
|
sure that all fields are interoperable. This will
|
need to be a semantic check on the finished derived type.
|
need to be a semantic check on the finished derived type.
|
See 15.2.3 (lines 9-12) of F2003 draft. */
|
See 15.2.3 (lines 9-12) of F2003 draft. */
|
if (gfc_add_is_bind_c (attr, NULL, &gfc_current_locus, 0) != SUCCESS)
|
if (gfc_add_is_bind_c (attr, NULL, &gfc_current_locus, 0) != SUCCESS)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* TODO: attr conflicts need to be checked, probably in symbol.c. */
|
/* TODO: attr conflicts need to be checked, probably in symbol.c. */
|
}
|
}
|
else if (gfc_match (" , abstract") == MATCH_YES)
|
else if (gfc_match (" , abstract") == MATCH_YES)
|
{
|
{
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ABSTRACT type at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ABSTRACT type at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_add_abstract (attr, &gfc_current_locus) == FAILURE)
|
if (gfc_add_abstract (attr, &gfc_current_locus) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (name && gfc_match(" , extends ( %n )", name) == MATCH_YES)
|
else if (name && gfc_match(" , extends ( %n )", name) == MATCH_YES)
|
{
|
{
|
if (gfc_add_extension (attr, &gfc_current_locus) == FAILURE)
|
if (gfc_add_extension (attr, &gfc_current_locus) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else
|
else
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
/* If we get here, something matched. */
|
/* If we get here, something matched. */
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Assign a hash value for a derived type. The algorithm is that of
|
/* Assign a hash value for a derived type. The algorithm is that of
|
SDBM. The hashed string is '[module_name #] derived_name'. */
|
SDBM. The hashed string is '[module_name #] derived_name'. */
|
static unsigned int
|
static unsigned int
|
hash_value (gfc_symbol *sym)
|
hash_value (gfc_symbol *sym)
|
{
|
{
|
unsigned int hash = 0;
|
unsigned int hash = 0;
|
const char *c;
|
const char *c;
|
int i, len;
|
int i, len;
|
|
|
/* Hash of the module or procedure name. */
|
/* Hash of the module or procedure name. */
|
if (sym->module != NULL)
|
if (sym->module != NULL)
|
c = sym->module;
|
c = sym->module;
|
else if (sym->ns && sym->ns->proc_name
|
else if (sym->ns && sym->ns->proc_name
|
&& sym->ns->proc_name->attr.flavor == FL_MODULE)
|
&& sym->ns->proc_name->attr.flavor == FL_MODULE)
|
c = sym->ns->proc_name->name;
|
c = sym->ns->proc_name->name;
|
else
|
else
|
c = NULL;
|
c = NULL;
|
|
|
if (c)
|
if (c)
|
{
|
{
|
len = strlen (c);
|
len = strlen (c);
|
for (i = 0; i < len; i++, c++)
|
for (i = 0; i < len; i++, c++)
|
hash = (hash << 6) + (hash << 16) - hash + (*c);
|
hash = (hash << 6) + (hash << 16) - hash + (*c);
|
|
|
/* Disambiguate between 'a' in 'aa' and 'aa' in 'a'. */
|
/* Disambiguate between 'a' in 'aa' and 'aa' in 'a'. */
|
hash = (hash << 6) + (hash << 16) - hash + '#';
|
hash = (hash << 6) + (hash << 16) - hash + '#';
|
}
|
}
|
|
|
/* Hash of the derived type name. */
|
/* Hash of the derived type name. */
|
len = strlen (sym->name);
|
len = strlen (sym->name);
|
c = sym->name;
|
c = sym->name;
|
for (i = 0; i < len; i++, c++)
|
for (i = 0; i < len; i++, c++)
|
hash = (hash << 6) + (hash << 16) - hash + (*c);
|
hash = (hash << 6) + (hash << 16) - hash + (*c);
|
|
|
/* Return the hash but take the modulus for the sake of module read,
|
/* Return the hash but take the modulus for the sake of module read,
|
even though this slightly increases the chance of collision. */
|
even though this slightly increases the chance of collision. */
|
return (hash % 100000000);
|
return (hash % 100000000);
|
}
|
}
|
|
|
|
|
/* Match the beginning of a derived type declaration. If a type name
|
/* Match the beginning of a derived type declaration. If a type name
|
was the result of a function, then it is possible to have a symbol
|
was the result of a function, then it is possible to have a symbol
|
already to be known as a derived type yet have no components. */
|
already to be known as a derived type yet have no components. */
|
|
|
match
|
match
|
gfc_match_derived_decl (void)
|
gfc_match_derived_decl (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char parent[GFC_MAX_SYMBOL_LEN + 1];
|
char parent[GFC_MAX_SYMBOL_LEN + 1];
|
symbol_attribute attr;
|
symbol_attribute attr;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
gfc_symbol *extended;
|
gfc_symbol *extended;
|
match m;
|
match m;
|
match is_type_attr_spec = MATCH_NO;
|
match is_type_attr_spec = MATCH_NO;
|
bool seen_attr = false;
|
bool seen_attr = false;
|
|
|
if (gfc_current_state () == COMP_DERIVED)
|
if (gfc_current_state () == COMP_DERIVED)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
name[0] = '\0';
|
name[0] = '\0';
|
parent[0] = '\0';
|
parent[0] = '\0';
|
gfc_clear_attr (&attr);
|
gfc_clear_attr (&attr);
|
extended = NULL;
|
extended = NULL;
|
|
|
do
|
do
|
{
|
{
|
is_type_attr_spec = gfc_get_type_attr_spec (&attr, parent);
|
is_type_attr_spec = gfc_get_type_attr_spec (&attr, parent);
|
if (is_type_attr_spec == MATCH_ERROR)
|
if (is_type_attr_spec == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
if (is_type_attr_spec == MATCH_YES)
|
if (is_type_attr_spec == MATCH_YES)
|
seen_attr = true;
|
seen_attr = true;
|
} while (is_type_attr_spec == MATCH_YES);
|
} while (is_type_attr_spec == MATCH_YES);
|
|
|
/* Deal with derived type extensions. The extension attribute has
|
/* Deal with derived type extensions. The extension attribute has
|
been added to 'attr' but now the parent type must be found and
|
been added to 'attr' but now the parent type must be found and
|
checked. */
|
checked. */
|
if (parent[0])
|
if (parent[0])
|
extended = check_extended_derived_type (parent);
|
extended = check_extended_derived_type (parent);
|
|
|
if (parent[0] && !extended)
|
if (parent[0] && !extended)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match (" ::") != MATCH_YES && seen_attr)
|
if (gfc_match (" ::") != MATCH_YES && seen_attr)
|
{
|
{
|
gfc_error ("Expected :: in TYPE definition at %C");
|
gfc_error ("Expected :: in TYPE definition at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
m = gfc_match (" %n%t", name);
|
m = gfc_match (" %n%t", name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
/* Make sure the name is not the name of an intrinsic type. */
|
/* Make sure the name is not the name of an intrinsic type. */
|
if (gfc_is_intrinsic_typename (name))
|
if (gfc_is_intrinsic_typename (name))
|
{
|
{
|
gfc_error ("Type name '%s' at %C cannot be the same as an intrinsic "
|
gfc_error ("Type name '%s' at %C cannot be the same as an intrinsic "
|
"type", name);
|
"type", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_get_symbol (name, NULL, &sym))
|
if (gfc_get_symbol (name, NULL, &sym))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (sym->ts.type != BT_UNKNOWN)
|
if (sym->ts.type != BT_UNKNOWN)
|
{
|
{
|
gfc_error ("Derived type name '%s' at %C already has a basic type "
|
gfc_error ("Derived type name '%s' at %C already has a basic type "
|
"of %s", sym->name, gfc_typename (&sym->ts));
|
"of %s", sym->name, gfc_typename (&sym->ts));
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* The symbol may already have the derived attribute without the
|
/* The symbol may already have the derived attribute without the
|
components. The ways this can happen is via a function
|
components. The ways this can happen is via a function
|
definition, an INTRINSIC statement or a subtype in another
|
definition, an INTRINSIC statement or a subtype in another
|
derived type that is a pointer. The first part of the AND clause
|
derived type that is a pointer. The first part of the AND clause
|
is true if the symbol is not the return value of a function. */
|
is true if the symbol is not the return value of a function. */
|
if (sym->attr.flavor != FL_DERIVED
|
if (sym->attr.flavor != FL_DERIVED
|
&& gfc_add_flavor (&sym->attr, FL_DERIVED, sym->name, NULL) == FAILURE)
|
&& gfc_add_flavor (&sym->attr, FL_DERIVED, sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (sym->components != NULL || sym->attr.zero_comp)
|
if (sym->components != NULL || sym->attr.zero_comp)
|
{
|
{
|
gfc_error ("Derived type definition of '%s' at %C has already been "
|
gfc_error ("Derived type definition of '%s' at %C has already been "
|
"defined", sym->name);
|
"defined", sym->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (attr.access != ACCESS_UNKNOWN
|
if (attr.access != ACCESS_UNKNOWN
|
&& gfc_add_access (&sym->attr, attr.access, sym->name, NULL) == FAILURE)
|
&& gfc_add_access (&sym->attr, attr.access, sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* See if the derived type was labeled as bind(c). */
|
/* See if the derived type was labeled as bind(c). */
|
if (attr.is_bind_c != 0)
|
if (attr.is_bind_c != 0)
|
sym->attr.is_bind_c = attr.is_bind_c;
|
sym->attr.is_bind_c = attr.is_bind_c;
|
|
|
/* Construct the f2k_derived namespace if it is not yet there. */
|
/* Construct the f2k_derived namespace if it is not yet there. */
|
if (!sym->f2k_derived)
|
if (!sym->f2k_derived)
|
sym->f2k_derived = gfc_get_namespace (NULL, 0);
|
sym->f2k_derived = gfc_get_namespace (NULL, 0);
|
|
|
if (extended && !sym->components)
|
if (extended && !sym->components)
|
{
|
{
|
gfc_component *p;
|
gfc_component *p;
|
gfc_symtree *st;
|
gfc_symtree *st;
|
|
|
/* Add the extended derived type as the first component. */
|
/* Add the extended derived type as the first component. */
|
gfc_add_component (sym, parent, &p);
|
gfc_add_component (sym, parent, &p);
|
extended->refs++;
|
extended->refs++;
|
gfc_set_sym_referenced (extended);
|
gfc_set_sym_referenced (extended);
|
|
|
p->ts.type = BT_DERIVED;
|
p->ts.type = BT_DERIVED;
|
p->ts.u.derived = extended;
|
p->ts.u.derived = extended;
|
p->initializer = gfc_default_initializer (&p->ts);
|
p->initializer = gfc_default_initializer (&p->ts);
|
|
|
/* Set extension level. */
|
/* Set extension level. */
|
if (extended->attr.extension == 255)
|
if (extended->attr.extension == 255)
|
{
|
{
|
/* Since the extension field is 8 bit wide, we can only have
|
/* Since the extension field is 8 bit wide, we can only have
|
up to 255 extension levels. */
|
up to 255 extension levels. */
|
gfc_error ("Maximum extension level reached with type '%s' at %L",
|
gfc_error ("Maximum extension level reached with type '%s' at %L",
|
extended->name, &extended->declared_at);
|
extended->name, &extended->declared_at);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
sym->attr.extension = extended->attr.extension + 1;
|
sym->attr.extension = extended->attr.extension + 1;
|
|
|
/* Provide the links between the extended type and its extension. */
|
/* Provide the links between the extended type and its extension. */
|
if (!extended->f2k_derived)
|
if (!extended->f2k_derived)
|
extended->f2k_derived = gfc_get_namespace (NULL, 0);
|
extended->f2k_derived = gfc_get_namespace (NULL, 0);
|
st = gfc_new_symtree (&extended->f2k_derived->sym_root, sym->name);
|
st = gfc_new_symtree (&extended->f2k_derived->sym_root, sym->name);
|
st->n.sym = sym;
|
st->n.sym = sym;
|
}
|
}
|
|
|
if (!sym->hash_value)
|
if (!sym->hash_value)
|
/* Set the hash for the compound name for this type. */
|
/* Set the hash for the compound name for this type. */
|
sym->hash_value = hash_value (sym);
|
sym->hash_value = hash_value (sym);
|
|
|
/* Take over the ABSTRACT attribute. */
|
/* Take over the ABSTRACT attribute. */
|
sym->attr.abstract = attr.abstract;
|
sym->attr.abstract = attr.abstract;
|
|
|
gfc_new_block = sym;
|
gfc_new_block = sym;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Cray Pointees can be declared as:
|
/* Cray Pointees can be declared as:
|
pointer (ipt, a (n,m,...,*)) */
|
pointer (ipt, a (n,m,...,*)) */
|
|
|
match
|
match
|
gfc_mod_pointee_as (gfc_array_spec *as)
|
gfc_mod_pointee_as (gfc_array_spec *as)
|
{
|
{
|
as->cray_pointee = true; /* This will be useful to know later. */
|
as->cray_pointee = true; /* This will be useful to know later. */
|
if (as->type == AS_ASSUMED_SIZE)
|
if (as->type == AS_ASSUMED_SIZE)
|
as->cp_was_assumed = true;
|
as->cp_was_assumed = true;
|
else if (as->type == AS_ASSUMED_SHAPE)
|
else if (as->type == AS_ASSUMED_SHAPE)
|
{
|
{
|
gfc_error ("Cray Pointee at %C cannot be assumed shape array");
|
gfc_error ("Cray Pointee at %C cannot be assumed shape array");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match the enum definition statement, here we are trying to match
|
/* Match the enum definition statement, here we are trying to match
|
the first line of enum definition statement.
|
the first line of enum definition statement.
|
Returns MATCH_YES if match is found. */
|
Returns MATCH_YES if match is found. */
|
|
|
match
|
match
|
gfc_match_enum (void)
|
gfc_match_enum (void)
|
{
|
{
|
match m;
|
match m;
|
|
|
m = gfc_match_eos ();
|
m = gfc_match_eos ();
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ENUM and ENUMERATOR at %C")
|
if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ENUM and ENUMERATOR at %C")
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Returns an initializer whose value is one higher than the value of the
|
/* Returns an initializer whose value is one higher than the value of the
|
LAST_INITIALIZER argument. If the argument is NULL, the
|
LAST_INITIALIZER argument. If the argument is NULL, the
|
initializers value will be set to zero. The initializer's kind
|
initializers value will be set to zero. The initializer's kind
|
will be set to gfc_c_int_kind.
|
will be set to gfc_c_int_kind.
|
|
|
If -fshort-enums is given, the appropriate kind will be selected
|
If -fshort-enums is given, the appropriate kind will be selected
|
later after all enumerators have been parsed. A warning is issued
|
later after all enumerators have been parsed. A warning is issued
|
here if an initializer exceeds gfc_c_int_kind. */
|
here if an initializer exceeds gfc_c_int_kind. */
|
|
|
static gfc_expr *
|
static gfc_expr *
|
enum_initializer (gfc_expr *last_initializer, locus where)
|
enum_initializer (gfc_expr *last_initializer, locus where)
|
{
|
{
|
gfc_expr *result;
|
gfc_expr *result;
|
|
|
result = gfc_get_expr ();
|
result = gfc_get_expr ();
|
result->expr_type = EXPR_CONSTANT;
|
result->expr_type = EXPR_CONSTANT;
|
result->ts.type = BT_INTEGER;
|
result->ts.type = BT_INTEGER;
|
result->ts.kind = gfc_c_int_kind;
|
result->ts.kind = gfc_c_int_kind;
|
result->where = where;
|
result->where = where;
|
|
|
mpz_init (result->value.integer);
|
mpz_init (result->value.integer);
|
|
|
if (last_initializer != NULL)
|
if (last_initializer != NULL)
|
{
|
{
|
mpz_add_ui (result->value.integer, last_initializer->value.integer, 1);
|
mpz_add_ui (result->value.integer, last_initializer->value.integer, 1);
|
result->where = last_initializer->where;
|
result->where = last_initializer->where;
|
|
|
if (gfc_check_integer_range (result->value.integer,
|
if (gfc_check_integer_range (result->value.integer,
|
gfc_c_int_kind) != ARITH_OK)
|
gfc_c_int_kind) != ARITH_OK)
|
{
|
{
|
gfc_error ("Enumerator exceeds the C integer type at %C");
|
gfc_error ("Enumerator exceeds the C integer type at %C");
|
return NULL;
|
return NULL;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Control comes here, if it's the very first enumerator and no
|
/* Control comes here, if it's the very first enumerator and no
|
initializer has been given. It will be initialized to zero. */
|
initializer has been given. It will be initialized to zero. */
|
mpz_set_si (result->value.integer, 0);
|
mpz_set_si (result->value.integer, 0);
|
}
|
}
|
|
|
return result;
|
return result;
|
}
|
}
|
|
|
|
|
/* Match a variable name with an optional initializer. When this
|
/* Match a variable name with an optional initializer. When this
|
subroutine is called, a variable is expected to be parsed next.
|
subroutine is called, a variable is expected to be parsed next.
|
Depending on what is happening at the moment, updates either the
|
Depending on what is happening at the moment, updates either the
|
symbol table or the current interface. */
|
symbol table or the current interface. */
|
|
|
static match
|
static match
|
enumerator_decl (void)
|
enumerator_decl (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_expr *initializer;
|
gfc_expr *initializer;
|
gfc_array_spec *as = NULL;
|
gfc_array_spec *as = NULL;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
locus var_locus;
|
locus var_locus;
|
match m;
|
match m;
|
gfc_try t;
|
gfc_try t;
|
locus old_locus;
|
locus old_locus;
|
|
|
initializer = NULL;
|
initializer = NULL;
|
old_locus = gfc_current_locus;
|
old_locus = gfc_current_locus;
|
|
|
/* When we get here, we've just matched a list of attributes and
|
/* When we get here, we've just matched a list of attributes and
|
maybe a type and a double colon. The next thing we expect to see
|
maybe a type and a double colon. The next thing we expect to see
|
is the name of the symbol. */
|
is the name of the symbol. */
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
|
|
var_locus = gfc_current_locus;
|
var_locus = gfc_current_locus;
|
|
|
/* OK, we've successfully matched the declaration. Now put the
|
/* OK, we've successfully matched the declaration. Now put the
|
symbol in the current namespace. If we fail to create the symbol,
|
symbol in the current namespace. If we fail to create the symbol,
|
bail out. */
|
bail out. */
|
if (build_sym (name, NULL, &as, &var_locus) == FAILURE)
|
if (build_sym (name, NULL, &as, &var_locus) == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* The double colon must be present in order to have initializers.
|
/* The double colon must be present in order to have initializers.
|
Otherwise the statement is ambiguous with an assignment statement. */
|
Otherwise the statement is ambiguous with an assignment statement. */
|
if (colon_seen)
|
if (colon_seen)
|
{
|
{
|
if (gfc_match_char ('=') == MATCH_YES)
|
if (gfc_match_char ('=') == MATCH_YES)
|
{
|
{
|
m = gfc_match_init_expr (&initializer);
|
m = gfc_match_init_expr (&initializer);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected an initialization expression at %C");
|
gfc_error ("Expected an initialization expression at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
}
|
}
|
|
|
/* If we do not have an initializer, the initialization value of the
|
/* If we do not have an initializer, the initialization value of the
|
previous enumerator (stored in last_initializer) is incremented
|
previous enumerator (stored in last_initializer) is incremented
|
by 1 and is used to initialize the current enumerator. */
|
by 1 and is used to initialize the current enumerator. */
|
if (initializer == NULL)
|
if (initializer == NULL)
|
initializer = enum_initializer (last_initializer, old_locus);
|
initializer = enum_initializer (last_initializer, old_locus);
|
|
|
if (initializer == NULL || initializer->ts.type != BT_INTEGER)
|
if (initializer == NULL || initializer->ts.type != BT_INTEGER)
|
{
|
{
|
gfc_error ("ENUMERATOR %L not initialized with integer expression",
|
gfc_error ("ENUMERATOR %L not initialized with integer expression",
|
&var_locus);
|
&var_locus);
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
/* Store this current initializer, for the next enumerator variable
|
/* Store this current initializer, for the next enumerator variable
|
to be parsed. add_init_expr_to_sym() zeros initializer, so we
|
to be parsed. add_init_expr_to_sym() zeros initializer, so we
|
use last_initializer below. */
|
use last_initializer below. */
|
last_initializer = initializer;
|
last_initializer = initializer;
|
t = add_init_expr_to_sym (name, &initializer, &var_locus);
|
t = add_init_expr_to_sym (name, &initializer, &var_locus);
|
|
|
/* Maintain enumerator history. */
|
/* Maintain enumerator history. */
|
gfc_find_symbol (name, NULL, 0, &sym);
|
gfc_find_symbol (name, NULL, 0, &sym);
|
create_enum_history (sym, last_initializer);
|
create_enum_history (sym, last_initializer);
|
|
|
return (t == SUCCESS) ? MATCH_YES : MATCH_ERROR;
|
return (t == SUCCESS) ? MATCH_YES : MATCH_ERROR;
|
|
|
cleanup:
|
cleanup:
|
/* Free stuff up and return. */
|
/* Free stuff up and return. */
|
gfc_free_expr (initializer);
|
gfc_free_expr (initializer);
|
|
|
return m;
|
return m;
|
}
|
}
|
|
|
|
|
/* Match the enumerator definition statement. */
|
/* Match the enumerator definition statement. */
|
|
|
match
|
match
|
gfc_match_enumerator_def (void)
|
gfc_match_enumerator_def (void)
|
{
|
{
|
match m;
|
match m;
|
gfc_try t;
|
gfc_try t;
|
|
|
gfc_clear_ts (¤t_ts);
|
gfc_clear_ts (¤t_ts);
|
|
|
m = gfc_match (" enumerator");
|
m = gfc_match (" enumerator");
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
m = gfc_match (" :: ");
|
m = gfc_match (" :: ");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
|
|
colon_seen = (m == MATCH_YES);
|
colon_seen = (m == MATCH_YES);
|
|
|
if (gfc_current_state () != COMP_ENUM)
|
if (gfc_current_state () != COMP_ENUM)
|
{
|
{
|
gfc_error ("ENUM definition statement expected before %C");
|
gfc_error ("ENUM definition statement expected before %C");
|
gfc_free_enum_history ();
|
gfc_free_enum_history ();
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
(¤t_ts)->type = BT_INTEGER;
|
(¤t_ts)->type = BT_INTEGER;
|
(¤t_ts)->kind = gfc_c_int_kind;
|
(¤t_ts)->kind = gfc_c_int_kind;
|
|
|
gfc_clear_attr (¤t_attr);
|
gfc_clear_attr (¤t_attr);
|
t = gfc_add_flavor (¤t_attr, FL_PARAMETER, NULL, NULL);
|
t = gfc_add_flavor (¤t_attr, FL_PARAMETER, NULL, NULL);
|
if (t == FAILURE)
|
if (t == FAILURE)
|
{
|
{
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
m = enumerator_decl ();
|
m = enumerator_decl ();
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
{
|
{
|
gfc_free_enum_history ();
|
gfc_free_enum_history ();
|
goto cleanup;
|
goto cleanup;
|
}
|
}
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
break;
|
break;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
goto cleanup;
|
goto cleanup;
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
break;
|
break;
|
}
|
}
|
|
|
if (gfc_current_state () == COMP_ENUM)
|
if (gfc_current_state () == COMP_ENUM)
|
{
|
{
|
gfc_free_enum_history ();
|
gfc_free_enum_history ();
|
gfc_error ("Syntax error in ENUMERATOR definition at %C");
|
gfc_error ("Syntax error in ENUMERATOR definition at %C");
|
m = MATCH_ERROR;
|
m = MATCH_ERROR;
|
}
|
}
|
|
|
cleanup:
|
cleanup:
|
gfc_free_array_spec (current_as);
|
gfc_free_array_spec (current_as);
|
current_as = NULL;
|
current_as = NULL;
|
return m;
|
return m;
|
|
|
}
|
}
|
|
|
|
|
/* Match binding attributes. */
|
/* Match binding attributes. */
|
|
|
static match
|
static match
|
match_binding_attributes (gfc_typebound_proc* ba, bool generic, bool ppc)
|
match_binding_attributes (gfc_typebound_proc* ba, bool generic, bool ppc)
|
{
|
{
|
bool found_passing = false;
|
bool found_passing = false;
|
bool seen_ptr = false;
|
bool seen_ptr = false;
|
match m = MATCH_YES;
|
match m = MATCH_YES;
|
|
|
/* Intialize to defaults. Do so even before the MATCH_NO check so that in
|
/* Intialize to defaults. Do so even before the MATCH_NO check so that in
|
this case the defaults are in there. */
|
this case the defaults are in there. */
|
ba->access = ACCESS_UNKNOWN;
|
ba->access = ACCESS_UNKNOWN;
|
ba->pass_arg = NULL;
|
ba->pass_arg = NULL;
|
ba->pass_arg_num = 0;
|
ba->pass_arg_num = 0;
|
ba->nopass = 0;
|
ba->nopass = 0;
|
ba->non_overridable = 0;
|
ba->non_overridable = 0;
|
ba->deferred = 0;
|
ba->deferred = 0;
|
ba->ppc = ppc;
|
ba->ppc = ppc;
|
|
|
/* If we find a comma, we believe there are binding attributes. */
|
/* If we find a comma, we believe there are binding attributes. */
|
m = gfc_match_char (',');
|
m = gfc_match_char (',');
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
goto done;
|
goto done;
|
|
|
do
|
do
|
{
|
{
|
/* Access specifier. */
|
/* Access specifier. */
|
|
|
m = gfc_match (" public");
|
m = gfc_match (" public");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (ba->access != ACCESS_UNKNOWN)
|
if (ba->access != ACCESS_UNKNOWN)
|
{
|
{
|
gfc_error ("Duplicate access-specifier at %C");
|
gfc_error ("Duplicate access-specifier at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
ba->access = ACCESS_PUBLIC;
|
ba->access = ACCESS_PUBLIC;
|
continue;
|
continue;
|
}
|
}
|
|
|
m = gfc_match (" private");
|
m = gfc_match (" private");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (ba->access != ACCESS_UNKNOWN)
|
if (ba->access != ACCESS_UNKNOWN)
|
{
|
{
|
gfc_error ("Duplicate access-specifier at %C");
|
gfc_error ("Duplicate access-specifier at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
ba->access = ACCESS_PRIVATE;
|
ba->access = ACCESS_PRIVATE;
|
continue;
|
continue;
|
}
|
}
|
|
|
/* If inside GENERIC, the following is not allowed. */
|
/* If inside GENERIC, the following is not allowed. */
|
if (!generic)
|
if (!generic)
|
{
|
{
|
|
|
/* NOPASS flag. */
|
/* NOPASS flag. */
|
m = gfc_match (" nopass");
|
m = gfc_match (" nopass");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (found_passing)
|
if (found_passing)
|
{
|
{
|
gfc_error ("Binding attributes already specify passing,"
|
gfc_error ("Binding attributes already specify passing,"
|
" illegal NOPASS at %C");
|
" illegal NOPASS at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
found_passing = true;
|
found_passing = true;
|
ba->nopass = 1;
|
ba->nopass = 1;
|
continue;
|
continue;
|
}
|
}
|
|
|
/* PASS possibly including argument. */
|
/* PASS possibly including argument. */
|
m = gfc_match (" pass");
|
m = gfc_match (" pass");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
char arg[GFC_MAX_SYMBOL_LEN + 1];
|
char arg[GFC_MAX_SYMBOL_LEN + 1];
|
|
|
if (found_passing)
|
if (found_passing)
|
{
|
{
|
gfc_error ("Binding attributes already specify passing,"
|
gfc_error ("Binding attributes already specify passing,"
|
" illegal PASS at %C");
|
" illegal PASS at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
m = gfc_match (" ( %n )", arg);
|
m = gfc_match (" ( %n )", arg);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
ba->pass_arg = gfc_get_string (arg);
|
ba->pass_arg = gfc_get_string (arg);
|
gcc_assert ((m == MATCH_YES) == (ba->pass_arg != NULL));
|
gcc_assert ((m == MATCH_YES) == (ba->pass_arg != NULL));
|
|
|
found_passing = true;
|
found_passing = true;
|
ba->nopass = 0;
|
ba->nopass = 0;
|
continue;
|
continue;
|
}
|
}
|
|
|
if (ppc)
|
if (ppc)
|
{
|
{
|
/* POINTER flag. */
|
/* POINTER flag. */
|
m = gfc_match (" pointer");
|
m = gfc_match (" pointer");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (seen_ptr)
|
if (seen_ptr)
|
{
|
{
|
gfc_error ("Duplicate POINTER attribute at %C");
|
gfc_error ("Duplicate POINTER attribute at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
seen_ptr = true;
|
seen_ptr = true;
|
continue;
|
continue;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* NON_OVERRIDABLE flag. */
|
/* NON_OVERRIDABLE flag. */
|
m = gfc_match (" non_overridable");
|
m = gfc_match (" non_overridable");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (ba->non_overridable)
|
if (ba->non_overridable)
|
{
|
{
|
gfc_error ("Duplicate NON_OVERRIDABLE at %C");
|
gfc_error ("Duplicate NON_OVERRIDABLE at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
ba->non_overridable = 1;
|
ba->non_overridable = 1;
|
continue;
|
continue;
|
}
|
}
|
|
|
/* DEFERRED flag. */
|
/* DEFERRED flag. */
|
m = gfc_match (" deferred");
|
m = gfc_match (" deferred");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (ba->deferred)
|
if (ba->deferred)
|
{
|
{
|
gfc_error ("Duplicate DEFERRED at %C");
|
gfc_error ("Duplicate DEFERRED at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
ba->deferred = 1;
|
ba->deferred = 1;
|
continue;
|
continue;
|
}
|
}
|
}
|
}
|
|
|
}
|
}
|
|
|
/* Nothing matching found. */
|
/* Nothing matching found. */
|
if (generic)
|
if (generic)
|
gfc_error ("Expected access-specifier at %C");
|
gfc_error ("Expected access-specifier at %C");
|
else
|
else
|
gfc_error ("Expected binding attribute at %C");
|
gfc_error ("Expected binding attribute at %C");
|
goto error;
|
goto error;
|
}
|
}
|
while (gfc_match_char (',') == MATCH_YES);
|
while (gfc_match_char (',') == MATCH_YES);
|
|
|
/* NON_OVERRIDABLE and DEFERRED exclude themselves. */
|
/* NON_OVERRIDABLE and DEFERRED exclude themselves. */
|
if (ba->non_overridable && ba->deferred)
|
if (ba->non_overridable && ba->deferred)
|
{
|
{
|
gfc_error ("NON_OVERRIDABLE and DEFERRED can't both appear at %C");
|
gfc_error ("NON_OVERRIDABLE and DEFERRED can't both appear at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
m = MATCH_YES;
|
m = MATCH_YES;
|
|
|
done:
|
done:
|
if (ba->access == ACCESS_UNKNOWN)
|
if (ba->access == ACCESS_UNKNOWN)
|
ba->access = gfc_typebound_default_access;
|
ba->access = gfc_typebound_default_access;
|
|
|
if (ppc && !seen_ptr)
|
if (ppc && !seen_ptr)
|
{
|
{
|
gfc_error ("POINTER attribute is required for procedure pointer component"
|
gfc_error ("POINTER attribute is required for procedure pointer component"
|
" at %C");
|
" at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
return m;
|
return m;
|
|
|
error:
|
error:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Match a PROCEDURE specific binding inside a derived type. */
|
/* Match a PROCEDURE specific binding inside a derived type. */
|
|
|
static match
|
static match
|
match_procedure_in_type (void)
|
match_procedure_in_type (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char target_buf[GFC_MAX_SYMBOL_LEN + 1];
|
char target_buf[GFC_MAX_SYMBOL_LEN + 1];
|
char* target = NULL;
|
char* target = NULL;
|
gfc_typebound_proc* tb;
|
gfc_typebound_proc* tb;
|
bool seen_colons;
|
bool seen_colons;
|
bool seen_attrs;
|
bool seen_attrs;
|
match m;
|
match m;
|
gfc_symtree* stree;
|
gfc_symtree* stree;
|
gfc_namespace* ns;
|
gfc_namespace* ns;
|
gfc_symbol* block;
|
gfc_symbol* block;
|
|
|
/* Check current state. */
|
/* Check current state. */
|
gcc_assert (gfc_state_stack->state == COMP_DERIVED_CONTAINS);
|
gcc_assert (gfc_state_stack->state == COMP_DERIVED_CONTAINS);
|
block = gfc_state_stack->previous->sym;
|
block = gfc_state_stack->previous->sym;
|
gcc_assert (block);
|
gcc_assert (block);
|
|
|
/* Try to match PROCEDURE(interface). */
|
/* Try to match PROCEDURE(interface). */
|
if (gfc_match (" (") == MATCH_YES)
|
if (gfc_match (" (") == MATCH_YES)
|
{
|
{
|
m = gfc_match_name (target_buf);
|
m = gfc_match_name (target_buf);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
{
|
{
|
gfc_error ("Interface-name expected after '(' at %C");
|
gfc_error ("Interface-name expected after '(' at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_match (" )") != MATCH_YES)
|
if (gfc_match (" )") != MATCH_YES)
|
{
|
{
|
gfc_error ("')' expected at %C");
|
gfc_error ("')' expected at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
target = target_buf;
|
target = target_buf;
|
}
|
}
|
|
|
/* Construct the data structure. */
|
/* Construct the data structure. */
|
tb = gfc_get_typebound_proc ();
|
tb = gfc_get_typebound_proc ();
|
tb->where = gfc_current_locus;
|
tb->where = gfc_current_locus;
|
tb->is_generic = 0;
|
tb->is_generic = 0;
|
|
|
/* Match binding attributes. */
|
/* Match binding attributes. */
|
m = match_binding_attributes (tb, false, false);
|
m = match_binding_attributes (tb, false, false);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
seen_attrs = (m == MATCH_YES);
|
seen_attrs = (m == MATCH_YES);
|
|
|
/* Check that attribute DEFERRED is given iff an interface is specified, which
|
/* Check that attribute DEFERRED is given iff an interface is specified, which
|
means target != NULL. */
|
means target != NULL. */
|
if (tb->deferred && !target)
|
if (tb->deferred && !target)
|
{
|
{
|
gfc_error ("Interface must be specified for DEFERRED binding at %C");
|
gfc_error ("Interface must be specified for DEFERRED binding at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
if (target && !tb->deferred)
|
if (target && !tb->deferred)
|
{
|
{
|
gfc_error ("PROCEDURE(interface) at %C should be declared DEFERRED");
|
gfc_error ("PROCEDURE(interface) at %C should be declared DEFERRED");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Match the colons. */
|
/* Match the colons. */
|
m = gfc_match (" ::");
|
m = gfc_match (" ::");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
seen_colons = (m == MATCH_YES);
|
seen_colons = (m == MATCH_YES);
|
if (seen_attrs && !seen_colons)
|
if (seen_attrs && !seen_colons)
|
{
|
{
|
gfc_error ("Expected '::' after binding-attributes at %C");
|
gfc_error ("Expected '::' after binding-attributes at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Match the binding name. */
|
/* Match the binding name. */
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected binding name at %C");
|
gfc_error ("Expected binding name at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Try to match the '=> target', if it's there. */
|
/* Try to match the '=> target', if it's there. */
|
m = gfc_match (" =>");
|
m = gfc_match (" =>");
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
if (m == MATCH_YES)
|
if (m == MATCH_YES)
|
{
|
{
|
if (tb->deferred)
|
if (tb->deferred)
|
{
|
{
|
gfc_error ("'=> target' is invalid for DEFERRED binding at %C");
|
gfc_error ("'=> target' is invalid for DEFERRED binding at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (!seen_colons)
|
if (!seen_colons)
|
{
|
{
|
gfc_error ("'::' needed in PROCEDURE binding with explicit target"
|
gfc_error ("'::' needed in PROCEDURE binding with explicit target"
|
" at %C");
|
" at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
m = gfc_match_name (target_buf);
|
m = gfc_match_name (target_buf);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected binding target after '=>' at %C");
|
gfc_error ("Expected binding target after '=>' at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
target = target_buf;
|
target = target_buf;
|
}
|
}
|
|
|
/* Now we should have the end. */
|
/* Now we should have the end. */
|
m = gfc_match_eos ();
|
m = gfc_match_eos ();
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return m;
|
return m;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Junk after PROCEDURE declaration at %C");
|
gfc_error ("Junk after PROCEDURE declaration at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* If no target was found, it has the same name as the binding. */
|
/* If no target was found, it has the same name as the binding. */
|
if (!target)
|
if (!target)
|
target = name;
|
target = name;
|
|
|
/* Get the namespace to insert the symbols into. */
|
/* Get the namespace to insert the symbols into. */
|
ns = block->f2k_derived;
|
ns = block->f2k_derived;
|
gcc_assert (ns);
|
gcc_assert (ns);
|
|
|
/* If the binding is DEFERRED, check that the containing type is ABSTRACT. */
|
/* If the binding is DEFERRED, check that the containing type is ABSTRACT. */
|
if (tb->deferred && !block->attr.abstract)
|
if (tb->deferred && !block->attr.abstract)
|
{
|
{
|
gfc_error ("Type '%s' containing DEFERRED binding at %C is not ABSTRACT",
|
gfc_error ("Type '%s' containing DEFERRED binding at %C is not ABSTRACT",
|
block->name);
|
block->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* See if we already have a binding with this name in the symtree which would
|
/* See if we already have a binding with this name in the symtree which would
|
be an error. If a GENERIC already targetted this binding, it may be
|
be an error. If a GENERIC already targetted this binding, it may be
|
already there but then typebound is still NULL. */
|
already there but then typebound is still NULL. */
|
stree = gfc_find_symtree (ns->tb_sym_root, name);
|
stree = gfc_find_symtree (ns->tb_sym_root, name);
|
if (stree && stree->n.tb)
|
if (stree && stree->n.tb)
|
{
|
{
|
gfc_error ("There's already a procedure with binding name '%s' for the"
|
gfc_error ("There's already a procedure with binding name '%s' for the"
|
" derived type '%s' at %C", name, block->name);
|
" derived type '%s' at %C", name, block->name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Insert it and set attributes. */
|
/* Insert it and set attributes. */
|
|
|
if (!stree)
|
if (!stree)
|
{
|
{
|
stree = gfc_new_symtree (&ns->tb_sym_root, name);
|
stree = gfc_new_symtree (&ns->tb_sym_root, name);
|
gcc_assert (stree);
|
gcc_assert (stree);
|
}
|
}
|
stree->n.tb = tb;
|
stree->n.tb = tb;
|
|
|
if (gfc_get_sym_tree (target, gfc_current_ns, &tb->u.specific, false))
|
if (gfc_get_sym_tree (target, gfc_current_ns, &tb->u.specific, false))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
gfc_set_sym_referenced (tb->u.specific->n.sym);
|
gfc_set_sym_referenced (tb->u.specific->n.sym);
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
/* Match a GENERIC procedure binding inside a derived type. */
|
/* Match a GENERIC procedure binding inside a derived type. */
|
|
|
match
|
match
|
gfc_match_generic (void)
|
gfc_match_generic (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char bind_name[GFC_MAX_SYMBOL_LEN + 16]; /* Allow space for OPERATOR(...). */
|
char bind_name[GFC_MAX_SYMBOL_LEN + 16]; /* Allow space for OPERATOR(...). */
|
gfc_symbol* block;
|
gfc_symbol* block;
|
gfc_typebound_proc tbattr; /* Used for match_binding_attributes. */
|
gfc_typebound_proc tbattr; /* Used for match_binding_attributes. */
|
gfc_typebound_proc* tb;
|
gfc_typebound_proc* tb;
|
gfc_namespace* ns;
|
gfc_namespace* ns;
|
interface_type op_type;
|
interface_type op_type;
|
gfc_intrinsic_op op;
|
gfc_intrinsic_op op;
|
match m;
|
match m;
|
|
|
/* Check current state. */
|
/* Check current state. */
|
if (gfc_current_state () == COMP_DERIVED)
|
if (gfc_current_state () == COMP_DERIVED)
|
{
|
{
|
gfc_error ("GENERIC at %C must be inside a derived-type CONTAINS");
|
gfc_error ("GENERIC at %C must be inside a derived-type CONTAINS");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
if (gfc_current_state () != COMP_DERIVED_CONTAINS)
|
if (gfc_current_state () != COMP_DERIVED_CONTAINS)
|
return MATCH_NO;
|
return MATCH_NO;
|
block = gfc_state_stack->previous->sym;
|
block = gfc_state_stack->previous->sym;
|
ns = block->f2k_derived;
|
ns = block->f2k_derived;
|
gcc_assert (block && ns);
|
gcc_assert (block && ns);
|
|
|
/* See if we get an access-specifier. */
|
/* See if we get an access-specifier. */
|
m = match_binding_attributes (&tbattr, true, false);
|
m = match_binding_attributes (&tbattr, true, false);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
|
|
/* Now the colons, those are required. */
|
/* Now the colons, those are required. */
|
if (gfc_match (" ::") != MATCH_YES)
|
if (gfc_match (" ::") != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected '::' at %C");
|
gfc_error ("Expected '::' at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
/* Match the binding name; depending on type (operator / generic) format
|
/* Match the binding name; depending on type (operator / generic) format
|
it for future error messages into bind_name. */
|
it for future error messages into bind_name. */
|
|
|
m = gfc_match_generic_spec (&op_type, name, &op);
|
m = gfc_match_generic_spec (&op_type, name, &op);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected generic name or operator descriptor at %C");
|
gfc_error ("Expected generic name or operator descriptor at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
switch (op_type)
|
switch (op_type)
|
{
|
{
|
case INTERFACE_GENERIC:
|
case INTERFACE_GENERIC:
|
snprintf (bind_name, sizeof (bind_name), "%s", name);
|
snprintf (bind_name, sizeof (bind_name), "%s", name);
|
break;
|
break;
|
|
|
case INTERFACE_USER_OP:
|
case INTERFACE_USER_OP:
|
snprintf (bind_name, sizeof (bind_name), "OPERATOR(.%s.)", name);
|
snprintf (bind_name, sizeof (bind_name), "OPERATOR(.%s.)", name);
|
break;
|
break;
|
|
|
case INTERFACE_INTRINSIC_OP:
|
case INTERFACE_INTRINSIC_OP:
|
snprintf (bind_name, sizeof (bind_name), "OPERATOR(%s)",
|
snprintf (bind_name, sizeof (bind_name), "OPERATOR(%s)",
|
gfc_op2string (op));
|
gfc_op2string (op));
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
|
|
/* Match the required =>. */
|
/* Match the required =>. */
|
if (gfc_match (" =>") != MATCH_YES)
|
if (gfc_match (" =>") != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected '=>' at %C");
|
gfc_error ("Expected '=>' at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
/* Try to find existing GENERIC binding with this name / for this operator;
|
/* Try to find existing GENERIC binding with this name / for this operator;
|
if there is something, check that it is another GENERIC and then extend
|
if there is something, check that it is another GENERIC and then extend
|
it rather than building a new node. Otherwise, create it and put it
|
it rather than building a new node. Otherwise, create it and put it
|
at the right position. */
|
at the right position. */
|
|
|
switch (op_type)
|
switch (op_type)
|
{
|
{
|
case INTERFACE_USER_OP:
|
case INTERFACE_USER_OP:
|
case INTERFACE_GENERIC:
|
case INTERFACE_GENERIC:
|
{
|
{
|
const bool is_op = (op_type == INTERFACE_USER_OP);
|
const bool is_op = (op_type == INTERFACE_USER_OP);
|
gfc_symtree* st;
|
gfc_symtree* st;
|
|
|
st = gfc_find_symtree (is_op ? ns->tb_uop_root : ns->tb_sym_root, name);
|
st = gfc_find_symtree (is_op ? ns->tb_uop_root : ns->tb_sym_root, name);
|
if (st)
|
if (st)
|
{
|
{
|
tb = st->n.tb;
|
tb = st->n.tb;
|
gcc_assert (tb);
|
gcc_assert (tb);
|
}
|
}
|
else
|
else
|
tb = NULL;
|
tb = NULL;
|
|
|
break;
|
break;
|
}
|
}
|
|
|
case INTERFACE_INTRINSIC_OP:
|
case INTERFACE_INTRINSIC_OP:
|
tb = ns->tb_op[op];
|
tb = ns->tb_op[op];
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
|
|
if (tb)
|
if (tb)
|
{
|
{
|
if (!tb->is_generic)
|
if (!tb->is_generic)
|
{
|
{
|
gcc_assert (op_type == INTERFACE_GENERIC);
|
gcc_assert (op_type == INTERFACE_GENERIC);
|
gfc_error ("There's already a non-generic procedure with binding name"
|
gfc_error ("There's already a non-generic procedure with binding name"
|
" '%s' for the derived type '%s' at %C",
|
" '%s' for the derived type '%s' at %C",
|
bind_name, block->name);
|
bind_name, block->name);
|
goto error;
|
goto error;
|
}
|
}
|
|
|
if (tb->access != tbattr.access)
|
if (tb->access != tbattr.access)
|
{
|
{
|
gfc_error ("Binding at %C must have the same access as already"
|
gfc_error ("Binding at %C must have the same access as already"
|
" defined binding '%s'", bind_name);
|
" defined binding '%s'", bind_name);
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
tb = gfc_get_typebound_proc ();
|
tb = gfc_get_typebound_proc ();
|
tb->where = gfc_current_locus;
|
tb->where = gfc_current_locus;
|
tb->access = tbattr.access;
|
tb->access = tbattr.access;
|
tb->is_generic = 1;
|
tb->is_generic = 1;
|
tb->u.generic = NULL;
|
tb->u.generic = NULL;
|
|
|
switch (op_type)
|
switch (op_type)
|
{
|
{
|
case INTERFACE_GENERIC:
|
case INTERFACE_GENERIC:
|
case INTERFACE_USER_OP:
|
case INTERFACE_USER_OP:
|
{
|
{
|
const bool is_op = (op_type == INTERFACE_USER_OP);
|
const bool is_op = (op_type == INTERFACE_USER_OP);
|
gfc_symtree* st;
|
gfc_symtree* st;
|
|
|
st = gfc_new_symtree (is_op ? &ns->tb_uop_root : &ns->tb_sym_root,
|
st = gfc_new_symtree (is_op ? &ns->tb_uop_root : &ns->tb_sym_root,
|
name);
|
name);
|
gcc_assert (st);
|
gcc_assert (st);
|
st->n.tb = tb;
|
st->n.tb = tb;
|
|
|
break;
|
break;
|
}
|
}
|
|
|
case INTERFACE_INTRINSIC_OP:
|
case INTERFACE_INTRINSIC_OP:
|
ns->tb_op[op] = tb;
|
ns->tb_op[op] = tb;
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
}
|
}
|
|
|
/* Now, match all following names as specific targets. */
|
/* Now, match all following names as specific targets. */
|
do
|
do
|
{
|
{
|
gfc_symtree* target_st;
|
gfc_symtree* target_st;
|
gfc_tbp_generic* target;
|
gfc_tbp_generic* target;
|
|
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m == MATCH_ERROR)
|
if (m == MATCH_ERROR)
|
goto error;
|
goto error;
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected specific binding name at %C");
|
gfc_error ("Expected specific binding name at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
target_st = gfc_get_tbp_symtree (&ns->tb_sym_root, name);
|
target_st = gfc_get_tbp_symtree (&ns->tb_sym_root, name);
|
|
|
/* See if this is a duplicate specification. */
|
/* See if this is a duplicate specification. */
|
for (target = tb->u.generic; target; target = target->next)
|
for (target = tb->u.generic; target; target = target->next)
|
if (target_st == target->specific_st)
|
if (target_st == target->specific_st)
|
{
|
{
|
gfc_error ("'%s' already defined as specific binding for the"
|
gfc_error ("'%s' already defined as specific binding for the"
|
" generic '%s' at %C", name, bind_name);
|
" generic '%s' at %C", name, bind_name);
|
goto error;
|
goto error;
|
}
|
}
|
|
|
target = gfc_get_tbp_generic ();
|
target = gfc_get_tbp_generic ();
|
target->specific_st = target_st;
|
target->specific_st = target_st;
|
target->specific = NULL;
|
target->specific = NULL;
|
target->next = tb->u.generic;
|
target->next = tb->u.generic;
|
tb->u.generic = target;
|
tb->u.generic = target;
|
}
|
}
|
while (gfc_match (" ,") == MATCH_YES);
|
while (gfc_match (" ,") == MATCH_YES);
|
|
|
/* Here should be the end. */
|
/* Here should be the end. */
|
if (gfc_match_eos () != MATCH_YES)
|
if (gfc_match_eos () != MATCH_YES)
|
{
|
{
|
gfc_error ("Junk after GENERIC binding at %C");
|
gfc_error ("Junk after GENERIC binding at %C");
|
goto error;
|
goto error;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
error:
|
error:
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
|
|
/* Match a FINAL declaration inside a derived type. */
|
/* Match a FINAL declaration inside a derived type. */
|
|
|
match
|
match
|
gfc_match_final_decl (void)
|
gfc_match_final_decl (void)
|
{
|
{
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
gfc_symbol* sym;
|
gfc_symbol* sym;
|
match m;
|
match m;
|
gfc_namespace* module_ns;
|
gfc_namespace* module_ns;
|
bool first, last;
|
bool first, last;
|
gfc_symbol* block;
|
gfc_symbol* block;
|
|
|
if (gfc_current_form == FORM_FREE)
|
if (gfc_current_form == FORM_FREE)
|
{
|
{
|
char c = gfc_peek_ascii_char ();
|
char c = gfc_peek_ascii_char ();
|
if (!gfc_is_whitespace (c) && c != ':')
|
if (!gfc_is_whitespace (c) && c != ':')
|
return MATCH_NO;
|
return MATCH_NO;
|
}
|
}
|
|
|
if (gfc_state_stack->state != COMP_DERIVED_CONTAINS)
|
if (gfc_state_stack->state != COMP_DERIVED_CONTAINS)
|
{
|
{
|
if (gfc_current_form == FORM_FIXED)
|
if (gfc_current_form == FORM_FIXED)
|
return MATCH_NO;
|
return MATCH_NO;
|
|
|
gfc_error ("FINAL declaration at %C must be inside a derived type "
|
gfc_error ("FINAL declaration at %C must be inside a derived type "
|
"CONTAINS section");
|
"CONTAINS section");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
block = gfc_state_stack->previous->sym;
|
block = gfc_state_stack->previous->sym;
|
gcc_assert (block);
|
gcc_assert (block);
|
|
|
if (!gfc_state_stack->previous || !gfc_state_stack->previous->previous
|
if (!gfc_state_stack->previous || !gfc_state_stack->previous->previous
|
|| gfc_state_stack->previous->previous->state != COMP_MODULE)
|
|| gfc_state_stack->previous->previous->state != COMP_MODULE)
|
{
|
{
|
gfc_error ("Derived type declaration with FINAL at %C must be in the"
|
gfc_error ("Derived type declaration with FINAL at %C must be in the"
|
" specification part of a MODULE");
|
" specification part of a MODULE");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
module_ns = gfc_current_ns;
|
module_ns = gfc_current_ns;
|
gcc_assert (module_ns);
|
gcc_assert (module_ns);
|
gcc_assert (module_ns->proc_name->attr.flavor == FL_MODULE);
|
gcc_assert (module_ns->proc_name->attr.flavor == FL_MODULE);
|
|
|
/* Match optional ::, don't care about MATCH_YES or MATCH_NO. */
|
/* Match optional ::, don't care about MATCH_YES or MATCH_NO. */
|
if (gfc_match (" ::") == MATCH_ERROR)
|
if (gfc_match (" ::") == MATCH_ERROR)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Match the sequence of procedure names. */
|
/* Match the sequence of procedure names. */
|
first = true;
|
first = true;
|
last = false;
|
last = false;
|
do
|
do
|
{
|
{
|
gfc_finalizer* f;
|
gfc_finalizer* f;
|
|
|
if (first && gfc_match_eos () == MATCH_YES)
|
if (first && gfc_match_eos () == MATCH_YES)
|
{
|
{
|
gfc_error ("Empty FINAL at %C");
|
gfc_error ("Empty FINAL at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m == MATCH_NO)
|
if (m == MATCH_NO)
|
{
|
{
|
gfc_error ("Expected module procedure name at %C");
|
gfc_error ("Expected module procedure name at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
else if (m != MATCH_YES)
|
else if (m != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
last = true;
|
last = true;
|
if (!last && gfc_match_char (',') != MATCH_YES)
|
if (!last && gfc_match_char (',') != MATCH_YES)
|
{
|
{
|
gfc_error ("Expected ',' at %C");
|
gfc_error ("Expected ',' at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_get_symbol (name, module_ns, &sym))
|
if (gfc_get_symbol (name, module_ns, &sym))
|
{
|
{
|
gfc_error ("Unknown procedure name \"%s\" at %C", name);
|
gfc_error ("Unknown procedure name \"%s\" at %C", name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Mark the symbol as module procedure. */
|
/* Mark the symbol as module procedure. */
|
if (sym->attr.proc != PROC_MODULE
|
if (sym->attr.proc != PROC_MODULE
|
&& gfc_add_procedure (&sym->attr, PROC_MODULE,
|
&& gfc_add_procedure (&sym->attr, PROC_MODULE,
|
sym->name, NULL) == FAILURE)
|
sym->name, NULL) == FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
/* Check if we already have this symbol in the list, this is an error. */
|
/* Check if we already have this symbol in the list, this is an error. */
|
for (f = block->f2k_derived->finalizers; f; f = f->next)
|
for (f = block->f2k_derived->finalizers; f; f = f->next)
|
if (f->proc_sym == sym)
|
if (f->proc_sym == sym)
|
{
|
{
|
gfc_error ("'%s' at %C is already defined as FINAL procedure!",
|
gfc_error ("'%s' at %C is already defined as FINAL procedure!",
|
name);
|
name);
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
/* Add this symbol to the list of finalizers. */
|
/* Add this symbol to the list of finalizers. */
|
gcc_assert (block->f2k_derived);
|
gcc_assert (block->f2k_derived);
|
++sym->refs;
|
++sym->refs;
|
f = XCNEW (gfc_finalizer);
|
f = XCNEW (gfc_finalizer);
|
f->proc_sym = sym;
|
f->proc_sym = sym;
|
f->proc_tree = NULL;
|
f->proc_tree = NULL;
|
f->where = gfc_current_locus;
|
f->where = gfc_current_locus;
|
f->next = block->f2k_derived->finalizers;
|
f->next = block->f2k_derived->finalizers;
|
block->f2k_derived->finalizers = f;
|
block->f2k_derived->finalizers = f;
|
|
|
first = false;
|
first = false;
|
}
|
}
|
while (!last);
|
while (!last);
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
}
|
}
|
|
|
|
|
const ext_attr_t ext_attr_list[] = {
|
const ext_attr_t ext_attr_list[] = {
|
{ "dllimport", EXT_ATTR_DLLIMPORT, "dllimport" },
|
{ "dllimport", EXT_ATTR_DLLIMPORT, "dllimport" },
|
{ "dllexport", EXT_ATTR_DLLEXPORT, "dllexport" },
|
{ "dllexport", EXT_ATTR_DLLEXPORT, "dllexport" },
|
{ "cdecl", EXT_ATTR_CDECL, "cdecl" },
|
{ "cdecl", EXT_ATTR_CDECL, "cdecl" },
|
{ "stdcall", EXT_ATTR_STDCALL, "stdcall" },
|
{ "stdcall", EXT_ATTR_STDCALL, "stdcall" },
|
{ "fastcall", EXT_ATTR_FASTCALL, "fastcall" },
|
{ "fastcall", EXT_ATTR_FASTCALL, "fastcall" },
|
{ NULL, EXT_ATTR_LAST, NULL }
|
{ NULL, EXT_ATTR_LAST, NULL }
|
};
|
};
|
|
|
/* Match a !GCC$ ATTRIBUTES statement of the form:
|
/* Match a !GCC$ ATTRIBUTES statement of the form:
|
!GCC$ ATTRIBUTES attribute-list :: var-name [, var-name] ...
|
!GCC$ ATTRIBUTES attribute-list :: var-name [, var-name] ...
|
When we come here, we have already matched the !GCC$ ATTRIBUTES string.
|
When we come here, we have already matched the !GCC$ ATTRIBUTES string.
|
|
|
TODO: We should support all GCC attributes using the same syntax for
|
TODO: We should support all GCC attributes using the same syntax for
|
the attribute list, i.e. the list in C
|
the attribute list, i.e. the list in C
|
__attributes(( attribute-list ))
|
__attributes(( attribute-list ))
|
matches then
|
matches then
|
!GCC$ ATTRIBUTES attribute-list ::
|
!GCC$ ATTRIBUTES attribute-list ::
|
Cf. c-parser.c's c_parser_attributes; the data can then directly be
|
Cf. c-parser.c's c_parser_attributes; the data can then directly be
|
saved into a TREE.
|
saved into a TREE.
|
|
|
As there is absolutely no risk of confusion, we should never return
|
As there is absolutely no risk of confusion, we should never return
|
MATCH_NO. */
|
MATCH_NO. */
|
match
|
match
|
gfc_match_gcc_attributes (void)
|
gfc_match_gcc_attributes (void)
|
{
|
{
|
symbol_attribute attr;
|
symbol_attribute attr;
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
char name[GFC_MAX_SYMBOL_LEN + 1];
|
unsigned id;
|
unsigned id;
|
gfc_symbol *sym;
|
gfc_symbol *sym;
|
match m;
|
match m;
|
|
|
gfc_clear_attr (&attr);
|
gfc_clear_attr (&attr);
|
for(;;)
|
for(;;)
|
{
|
{
|
char ch;
|
char ch;
|
|
|
if (gfc_match_name (name) != MATCH_YES)
|
if (gfc_match_name (name) != MATCH_YES)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
for (id = 0; id < EXT_ATTR_LAST; id++)
|
for (id = 0; id < EXT_ATTR_LAST; id++)
|
if (strcmp (name, ext_attr_list[id].name) == 0)
|
if (strcmp (name, ext_attr_list[id].name) == 0)
|
break;
|
break;
|
|
|
if (id == EXT_ATTR_LAST)
|
if (id == EXT_ATTR_LAST)
|
{
|
{
|
gfc_error ("Unknown attribute in !GCC$ ATTRIBUTES statement at %C");
|
gfc_error ("Unknown attribute in !GCC$ ATTRIBUTES statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
if (gfc_add_ext_attribute (&attr, (ext_attr_id_t) id, &gfc_current_locus)
|
if (gfc_add_ext_attribute (&attr, (ext_attr_id_t) id, &gfc_current_locus)
|
== FAILURE)
|
== FAILURE)
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
gfc_gobble_whitespace ();
|
gfc_gobble_whitespace ();
|
ch = gfc_next_ascii_char ();
|
ch = gfc_next_ascii_char ();
|
if (ch == ':')
|
if (ch == ':')
|
{
|
{
|
/* This is the successful exit condition for the loop. */
|
/* This is the successful exit condition for the loop. */
|
if (gfc_next_ascii_char () == ':')
|
if (gfc_next_ascii_char () == ':')
|
break;
|
break;
|
}
|
}
|
|
|
if (ch == ',')
|
if (ch == ',')
|
continue;
|
continue;
|
|
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
goto syntax;
|
goto syntax;
|
|
|
for(;;)
|
for(;;)
|
{
|
{
|
m = gfc_match_name (name);
|
m = gfc_match_name (name);
|
if (m != MATCH_YES)
|
if (m != MATCH_YES)
|
return m;
|
return m;
|
|
|
if (find_special (name, &sym, true))
|
if (find_special (name, &sym, true))
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
|
|
sym->attr.ext_attr |= attr.ext_attr;
|
sym->attr.ext_attr |= attr.ext_attr;
|
|
|
if (gfc_match_eos () == MATCH_YES)
|
if (gfc_match_eos () == MATCH_YES)
|
break;
|
break;
|
|
|
if (gfc_match_char (',') != MATCH_YES)
|
if (gfc_match_char (',') != MATCH_YES)
|
goto syntax;
|
goto syntax;
|
}
|
}
|
|
|
return MATCH_YES;
|
return MATCH_YES;
|
|
|
syntax:
|
syntax:
|
gfc_error ("Syntax error in !GCC$ ATTRIBUTES statement at %C");
|
gfc_error ("Syntax error in !GCC$ ATTRIBUTES statement at %C");
|
return MATCH_ERROR;
|
return MATCH_ERROR;
|
}
|
}
|
|
|
