/* Process source files and output type information.
|
/* Process source files and output type information.
|
Copyright (C) 2006, 2007 Free Software Foundation, Inc.
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Copyright (C) 2006, 2007 Free Software Foundation, Inc.
|
|
|
This file is part of GCC.
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This file is part of GCC.
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|
|
GCC is free software; you can redistribute it and/or modify it under
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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
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Software Foundation; either version 3, or (at your option) any later
|
version.
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version.
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|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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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.
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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/>. */
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|
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#include "bconfig.h"
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#include "bconfig.h"
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#include "system.h"
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#include "system.h"
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#include "gengtype.h"
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#include "gengtype.h"
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|
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/* This is a simple recursive-descent parser which understands a subset of
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/* This is a simple recursive-descent parser which understands a subset of
|
the C type grammar.
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the C type grammar.
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|
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Rule functions are suffixed _seq if they scan a sequence of items;
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Rule functions are suffixed _seq if they scan a sequence of items;
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_opt if they may consume zero tokens; _seqopt if both are true. The
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_opt if they may consume zero tokens; _seqopt if both are true. The
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"consume_" prefix indicates that a sequence of tokens is parsed for
|
"consume_" prefix indicates that a sequence of tokens is parsed for
|
syntactic correctness and then thrown away. */
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syntactic correctness and then thrown away. */
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|
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/* Simple one-token lookahead mechanism. */
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/* Simple one-token lookahead mechanism. */
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|
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struct token
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struct token
|
{
|
{
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const char *value;
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const char *value;
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int code;
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int code;
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bool valid;
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bool valid;
|
};
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};
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static struct token T;
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static struct token T;
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|
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/* Retrieve the code of the current token; if there is no current token,
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/* Retrieve the code of the current token; if there is no current token,
|
get the next one from the lexer. */
|
get the next one from the lexer. */
|
static inline int
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static inline int
|
token (void)
|
token (void)
|
{
|
{
|
if (!T.valid)
|
if (!T.valid)
|
{
|
{
|
T.code = yylex (&T.value);
|
T.code = yylex (&T.value);
|
T.valid = true;
|
T.valid = true;
|
}
|
}
|
return T.code;
|
return T.code;
|
}
|
}
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|
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/* Retrieve the value of the current token (if any) and mark it consumed.
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/* Retrieve the value of the current token (if any) and mark it consumed.
|
The next call to token() will get another token from the lexer. */
|
The next call to token() will get another token from the lexer. */
|
static inline const char *
|
static inline const char *
|
advance (void)
|
advance (void)
|
{
|
{
|
T.valid = false;
|
T.valid = false;
|
return T.value;
|
return T.value;
|
}
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}
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|
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/* Diagnostics. */
|
/* Diagnostics. */
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|
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/* This array is indexed by the token code minus CHAR_TOKEN_OFFSET. */
|
/* This array is indexed by the token code minus CHAR_TOKEN_OFFSET. */
|
static const char *const token_names[] = {
|
static const char *const token_names[] = {
|
"GTY",
|
"GTY",
|
"typedef",
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"typedef",
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"extern",
|
"extern",
|
"static",
|
"static",
|
"union",
|
"union",
|
"struct",
|
"struct",
|
"enum",
|
"enum",
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"VEC",
|
"VEC",
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"DEF_VEC_[OP]",
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"DEF_VEC_[OP]",
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"DEF_VEC_I",
|
"DEF_VEC_I",
|
"DEF_VEC_ALLOC_[IOP]",
|
"DEF_VEC_ALLOC_[IOP]",
|
"...",
|
"...",
|
"ptr_alias",
|
"ptr_alias",
|
"nested_ptr",
|
"nested_ptr",
|
"a param<N>_is option",
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"a param<N>_is option",
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"a number",
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"a number",
|
"a scalar type",
|
"a scalar type",
|
"an identifier",
|
"an identifier",
|
"a string constant",
|
"a string constant",
|
"a character constant",
|
"a character constant",
|
"an array declarator",
|
"an array declarator",
|
};
|
};
|
|
|
/* This array is indexed by token code minus FIRST_TOKEN_WITH_VALUE. */
|
/* This array is indexed by token code minus FIRST_TOKEN_WITH_VALUE. */
|
static const char *const token_value_format[] = {
|
static const char *const token_value_format[] = {
|
"%s",
|
"%s",
|
"'%s'",
|
"'%s'",
|
"'%s'",
|
"'%s'",
|
"'%s'",
|
"'%s'",
|
"'\"%s\"'",
|
"'\"%s\"'",
|
"\"'%s'\"",
|
"\"'%s'\"",
|
"'[%s]'",
|
"'[%s]'",
|
};
|
};
|
|
|
/* Produce a printable representation for a token defined by CODE and
|
/* Produce a printable representation for a token defined by CODE and
|
VALUE. This sometimes returns pointers into malloc memory and
|
VALUE. This sometimes returns pointers into malloc memory and
|
sometimes not, therefore it is unsafe to free the pointer it
|
sometimes not, therefore it is unsafe to free the pointer it
|
returns, so that memory is leaked. This does not matter, as this
|
returns, so that memory is leaked. This does not matter, as this
|
function is only used for diagnostics, and in a successful run of
|
function is only used for diagnostics, and in a successful run of
|
the program there will be none. */
|
the program there will be none. */
|
static const char *
|
static const char *
|
print_token (int code, const char *value)
|
print_token (int code, const char *value)
|
{
|
{
|
if (code < CHAR_TOKEN_OFFSET)
|
if (code < CHAR_TOKEN_OFFSET)
|
return xasprintf ("'%c'", code);
|
return xasprintf ("'%c'", code);
|
else if (code < FIRST_TOKEN_WITH_VALUE)
|
else if (code < FIRST_TOKEN_WITH_VALUE)
|
return xasprintf ("'%s'", token_names[code - CHAR_TOKEN_OFFSET]);
|
return xasprintf ("'%s'", token_names[code - CHAR_TOKEN_OFFSET]);
|
else if (!value)
|
else if (!value)
|
return token_names[code - CHAR_TOKEN_OFFSET]; /* don't quote these */
|
return token_names[code - CHAR_TOKEN_OFFSET]; /* don't quote these */
|
else
|
else
|
return xasprintf (token_value_format[code - FIRST_TOKEN_WITH_VALUE],
|
return xasprintf (token_value_format[code - FIRST_TOKEN_WITH_VALUE],
|
value);
|
value);
|
}
|
}
|
|
|
/* Convenience wrapper around print_token which produces the printable
|
/* Convenience wrapper around print_token which produces the printable
|
representation of the current token. */
|
representation of the current token. */
|
static inline const char *
|
static inline const char *
|
print_cur_token (void)
|
print_cur_token (void)
|
{
|
{
|
return print_token (T.code, T.value);
|
return print_token (T.code, T.value);
|
}
|
}
|
|
|
/* Report a parse error on the current line, with diagnostic MSG.
|
/* Report a parse error on the current line, with diagnostic MSG.
|
Behaves as standard printf with respect to additional arguments and
|
Behaves as standard printf with respect to additional arguments and
|
format escapes. */
|
format escapes. */
|
static void ATTRIBUTE_PRINTF_1
|
static void ATTRIBUTE_PRINTF_1
|
parse_error (const char *msg, ...)
|
parse_error (const char *msg, ...)
|
{
|
{
|
va_list ap;
|
va_list ap;
|
|
|
fprintf (stderr, "%s:%d: parse error: ", lexer_line.file, lexer_line.line);
|
fprintf (stderr, "%s:%d: parse error: ", lexer_line.file, lexer_line.line);
|
|
|
va_start (ap, msg);
|
va_start (ap, msg);
|
vfprintf (stderr, msg, ap);
|
vfprintf (stderr, msg, ap);
|
va_end (ap);
|
va_end (ap);
|
|
|
fputc ('\n', stderr);
|
fputc ('\n', stderr);
|
|
|
hit_error = true;
|
hit_error = true;
|
}
|
}
|
|
|
/* If the next token does not have code T, report a parse error; otherwise
|
/* If the next token does not have code T, report a parse error; otherwise
|
return the token's value. */
|
return the token's value. */
|
static const char *
|
static const char *
|
require (int t)
|
require (int t)
|
{
|
{
|
int u = token ();
|
int u = token ();
|
const char *v = advance ();
|
const char *v = advance ();
|
if (u != t)
|
if (u != t)
|
{
|
{
|
parse_error ("expected %s, have %s",
|
parse_error ("expected %s, have %s",
|
print_token (t, 0), print_token (u, v));
|
print_token (t, 0), print_token (u, v));
|
return 0;
|
return 0;
|
}
|
}
|
return v;
|
return v;
|
}
|
}
|
|
|
/* If the next token does not have one of the codes T1 or T2, report a
|
/* If the next token does not have one of the codes T1 or T2, report a
|
parse error; otherwise return the token's value. */
|
parse error; otherwise return the token's value. */
|
static const char *
|
static const char *
|
require2 (int t1, int t2)
|
require2 (int t1, int t2)
|
{
|
{
|
int u = token ();
|
int u = token ();
|
const char *v = advance ();
|
const char *v = advance ();
|
if (u != t1 && u != t2)
|
if (u != t1 && u != t2)
|
{
|
{
|
parse_error ("expected %s or %s, have %s",
|
parse_error ("expected %s or %s, have %s",
|
print_token (t1, 0), print_token (t2, 0),
|
print_token (t1, 0), print_token (t2, 0),
|
print_token (u, v));
|
print_token (u, v));
|
return 0;
|
return 0;
|
}
|
}
|
return v;
|
return v;
|
}
|
}
|
|
|
/* Near-terminals. */
|
/* Near-terminals. */
|
|
|
/* C-style string constant concatenation: STRING+
|
/* C-style string constant concatenation: STRING+
|
Bare STRING should appear nowhere else in this file. */
|
Bare STRING should appear nowhere else in this file. */
|
static const char *
|
static const char *
|
string_seq (void)
|
string_seq (void)
|
{
|
{
|
const char *s1, *s2;
|
const char *s1, *s2;
|
size_t l1, l2;
|
size_t l1, l2;
|
char *buf;
|
char *buf;
|
|
|
s1 = require (STRING);
|
s1 = require (STRING);
|
if (s1 == 0)
|
if (s1 == 0)
|
return "";
|
return "";
|
while (token () == STRING)
|
while (token () == STRING)
|
{
|
{
|
s2 = advance ();
|
s2 = advance ();
|
|
|
l1 = strlen (s1);
|
l1 = strlen (s1);
|
l2 = strlen (s2);
|
l2 = strlen (s2);
|
buf = XRESIZEVEC (char, CONST_CAST(char *, s1), l1 + l2 + 1);
|
buf = XRESIZEVEC (char, CONST_CAST(char *, s1), l1 + l2 + 1);
|
memcpy (buf + l1, s2, l2 + 1);
|
memcpy (buf + l1, s2, l2 + 1);
|
XDELETE (CONST_CAST (char *, s2));
|
XDELETE (CONST_CAST (char *, s2));
|
s1 = buf;
|
s1 = buf;
|
}
|
}
|
return s1;
|
return s1;
|
}
|
}
|
|
|
/* typedef_name: either an ID, or VEC(x,y) which is translated to VEC_x_y.
|
/* typedef_name: either an ID, or VEC(x,y) which is translated to VEC_x_y.
|
Use only where VEC(x,y) is legitimate, i.e. in positions where a
|
Use only where VEC(x,y) is legitimate, i.e. in positions where a
|
typedef name may appear. */
|
typedef name may appear. */
|
static const char *
|
static const char *
|
typedef_name (void)
|
typedef_name (void)
|
{
|
{
|
if (token () == VEC_TOKEN)
|
if (token () == VEC_TOKEN)
|
{
|
{
|
const char *c1, *c2, *r;
|
const char *c1, *c2, *r;
|
advance ();
|
advance ();
|
require ('(');
|
require ('(');
|
c1 = require2 (ID, SCALAR);
|
c1 = require2 (ID, SCALAR);
|
require (',');
|
require (',');
|
c2 = require (ID);
|
c2 = require (ID);
|
require (')');
|
require (')');
|
r = concat ("VEC_", c1, "_", c2, (char *)0);
|
r = concat ("VEC_", c1, "_", c2, (char *)0);
|
free (CONST_CAST (char *, c1));
|
free (CONST_CAST (char *, c1));
|
free (CONST_CAST (char *, c2));
|
free (CONST_CAST (char *, c2));
|
return r;
|
return r;
|
}
|
}
|
else
|
else
|
return require (ID);
|
return require (ID);
|
}
|
}
|
|
|
/* Absorb a sequence of tokens delimited by balanced ()[]{}. */
|
/* Absorb a sequence of tokens delimited by balanced ()[]{}. */
|
static void
|
static void
|
consume_balanced (int opener, int closer)
|
consume_balanced (int opener, int closer)
|
{
|
{
|
require (opener);
|
require (opener);
|
for (;;)
|
for (;;)
|
switch (token ())
|
switch (token ())
|
{
|
{
|
default: advance (); break;
|
default: advance (); break;
|
case '(': consume_balanced ('(',')'); break;
|
case '(': consume_balanced ('(',')'); break;
|
case '[': consume_balanced ('[',']'); break;
|
case '[': consume_balanced ('[',']'); break;
|
case '{': consume_balanced ('{','}'); break;
|
case '{': consume_balanced ('{','}'); break;
|
|
|
case '}':
|
case '}':
|
case ']':
|
case ']':
|
case ')':
|
case ')':
|
if (token () != closer)
|
if (token () != closer)
|
parse_error ("unbalanced delimiters - expected '%c', have '%c'",
|
parse_error ("unbalanced delimiters - expected '%c', have '%c'",
|
closer, token ());
|
closer, token ());
|
advance ();
|
advance ();
|
return;
|
return;
|
|
|
case EOF_TOKEN:
|
case EOF_TOKEN:
|
parse_error ("unexpected end of file within %c%c-delimited construct",
|
parse_error ("unexpected end of file within %c%c-delimited construct",
|
opener, closer);
|
opener, closer);
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
/* Absorb a sequence of tokens, possibly including ()[]{}-delimited
|
/* Absorb a sequence of tokens, possibly including ()[]{}-delimited
|
expressions, until we encounter a semicolon outside any such
|
expressions, until we encounter a semicolon outside any such
|
delimiters; absorb that too. If IMMEDIATE is true, it is an error
|
delimiters; absorb that too. If IMMEDIATE is true, it is an error
|
if the semicolon is not the first token encountered. */
|
if the semicolon is not the first token encountered. */
|
static void
|
static void
|
consume_until_semi (bool immediate)
|
consume_until_semi (bool immediate)
|
{
|
{
|
if (immediate && token () != ';')
|
if (immediate && token () != ';')
|
require (';');
|
require (';');
|
for (;;)
|
for (;;)
|
switch (token ())
|
switch (token ())
|
{
|
{
|
case ';': advance (); return;
|
case ';': advance (); return;
|
default: advance (); break;
|
default: advance (); break;
|
|
|
case '(': consume_balanced ('(',')'); break;
|
case '(': consume_balanced ('(',')'); break;
|
case '[': consume_balanced ('[',']'); break;
|
case '[': consume_balanced ('[',']'); break;
|
case '{': consume_balanced ('{','}'); break;
|
case '{': consume_balanced ('{','}'); break;
|
|
|
case '}':
|
case '}':
|
case ']':
|
case ']':
|
case ')':
|
case ')':
|
parse_error ("unmatched '%c' while scanning for ';'", token ());
|
parse_error ("unmatched '%c' while scanning for ';'", token ());
|
return;
|
return;
|
|
|
case EOF_TOKEN:
|
case EOF_TOKEN:
|
parse_error ("unexpected end of file while scanning for ';'");
|
parse_error ("unexpected end of file while scanning for ';'");
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
/* Absorb a sequence of tokens, possibly including ()[]{}-delimited
|
/* Absorb a sequence of tokens, possibly including ()[]{}-delimited
|
expressions, until we encounter a comma or semicolon outside any
|
expressions, until we encounter a comma or semicolon outside any
|
such delimiters; absorb that too. If IMMEDIATE is true, it is an
|
such delimiters; absorb that too. If IMMEDIATE is true, it is an
|
error if the comma or semicolon is not the first token encountered.
|
error if the comma or semicolon is not the first token encountered.
|
Returns true if the loop ended with a comma. */
|
Returns true if the loop ended with a comma. */
|
static bool
|
static bool
|
consume_until_comma_or_semi (bool immediate)
|
consume_until_comma_or_semi (bool immediate)
|
{
|
{
|
if (immediate && token () != ',' && token () != ';')
|
if (immediate && token () != ',' && token () != ';')
|
require2 (',', ';');
|
require2 (',', ';');
|
for (;;)
|
for (;;)
|
switch (token ())
|
switch (token ())
|
{
|
{
|
case ',': advance (); return true;
|
case ',': advance (); return true;
|
case ';': advance (); return false;
|
case ';': advance (); return false;
|
default: advance (); break;
|
default: advance (); break;
|
|
|
case '(': consume_balanced ('(',')'); break;
|
case '(': consume_balanced ('(',')'); break;
|
case '[': consume_balanced ('[',']'); break;
|
case '[': consume_balanced ('[',']'); break;
|
case '{': consume_balanced ('{','}'); break;
|
case '{': consume_balanced ('{','}'); break;
|
|
|
case '}':
|
case '}':
|
case ']':
|
case ']':
|
case ')':
|
case ')':
|
parse_error ("unmatched '%s' while scanning for ',' or ';'",
|
parse_error ("unmatched '%s' while scanning for ',' or ';'",
|
print_cur_token ());
|
print_cur_token ());
|
return false;
|
return false;
|
|
|
case EOF_TOKEN:
|
case EOF_TOKEN:
|
parse_error ("unexpected end of file while scanning for ',' or ';'");
|
parse_error ("unexpected end of file while scanning for ',' or ';'");
|
return false;
|
return false;
|
}
|
}
|
}
|
}
|
|
|
|
|
/* GTY(()) option handling. */
|
/* GTY(()) option handling. */
|
static type_p type (options_p *optsp, bool nested);
|
static type_p type (options_p *optsp, bool nested);
|
|
|
/* Optional parenthesized string: ('(' string_seq ')')? */
|
/* Optional parenthesized string: ('(' string_seq ')')? */
|
static options_p
|
static options_p
|
str_optvalue_opt (options_p prev)
|
str_optvalue_opt (options_p prev)
|
{
|
{
|
const char *name = advance ();
|
const char *name = advance ();
|
const char *value = "";
|
const char *value = "";
|
if (token () == '(')
|
if (token () == '(')
|
{
|
{
|
advance ();
|
advance ();
|
value = string_seq ();
|
value = string_seq ();
|
require (')');
|
require (')');
|
}
|
}
|
return create_option (prev, name, value);
|
return create_option (prev, name, value);
|
}
|
}
|
|
|
/* absdecl: type '*'*
|
/* absdecl: type '*'*
|
-- a vague approximation to what the C standard calls an abstract
|
-- a vague approximation to what the C standard calls an abstract
|
declarator. The only kinds that are actually used are those that
|
declarator. The only kinds that are actually used are those that
|
are just a bare type and those that have trailing pointer-stars.
|
are just a bare type and those that have trailing pointer-stars.
|
Further kinds should be implemented if and when they become
|
Further kinds should be implemented if and when they become
|
necessary. Used only within GTY(()) option values, therefore
|
necessary. Used only within GTY(()) option values, therefore
|
further GTY(()) tags within the type are invalid. Note that the
|
further GTY(()) tags within the type are invalid. Note that the
|
return value has already been run through adjust_field_type. */
|
return value has already been run through adjust_field_type. */
|
static type_p
|
static type_p
|
absdecl (void)
|
absdecl (void)
|
{
|
{
|
type_p ty;
|
type_p ty;
|
options_p opts;
|
options_p opts;
|
|
|
ty = type (&opts, true);
|
ty = type (&opts, true);
|
while (token () == '*')
|
while (token () == '*')
|
{
|
{
|
ty = create_pointer (ty);
|
ty = create_pointer (ty);
|
advance ();
|
advance ();
|
}
|
}
|
|
|
if (opts)
|
if (opts)
|
parse_error ("nested GTY(()) options are invalid");
|
parse_error ("nested GTY(()) options are invalid");
|
|
|
return adjust_field_type (ty, 0);
|
return adjust_field_type (ty, 0);
|
}
|
}
|
|
|
/* Type-option: '(' absdecl ')' */
|
/* Type-option: '(' absdecl ')' */
|
static options_p
|
static options_p
|
type_optvalue (options_p prev, const char *name)
|
type_optvalue (options_p prev, const char *name)
|
{
|
{
|
type_p ty;
|
type_p ty;
|
require ('(');
|
require ('(');
|
ty = absdecl ();
|
ty = absdecl ();
|
require (')');
|
require (')');
|
return create_option (prev, name, ty);
|
return create_option (prev, name, ty);
|
}
|
}
|
|
|
/* Nested pointer data: '(' type '*'* ',' string_seq ',' string_seq ')' */
|
/* Nested pointer data: '(' type '*'* ',' string_seq ',' string_seq ')' */
|
static options_p
|
static options_p
|
nestedptr_optvalue (options_p prev)
|
nestedptr_optvalue (options_p prev)
|
{
|
{
|
type_p ty;
|
type_p ty;
|
const char *from, *to;
|
const char *from, *to;
|
|
|
require ('(');
|
require ('(');
|
ty = absdecl ();
|
ty = absdecl ();
|
require (',');
|
require (',');
|
to = string_seq ();
|
to = string_seq ();
|
require (',');
|
require (',');
|
from = string_seq ();
|
from = string_seq ();
|
require (')');
|
require (')');
|
|
|
return create_nested_ptr_option (prev, ty, to, from);
|
return create_nested_ptr_option (prev, ty, to, from);
|
}
|
}
|
|
|
/* One GTY(()) option:
|
/* One GTY(()) option:
|
ID str_optvalue_opt
|
ID str_optvalue_opt
|
| PTR_ALIAS type_optvalue
|
| PTR_ALIAS type_optvalue
|
| PARAM_IS type_optvalue
|
| PARAM_IS type_optvalue
|
| NESTED_PTR nestedptr_optvalue
|
| NESTED_PTR nestedptr_optvalue
|
*/
|
*/
|
static options_p
|
static options_p
|
option (options_p prev)
|
option (options_p prev)
|
{
|
{
|
switch (token ())
|
switch (token ())
|
{
|
{
|
case ID:
|
case ID:
|
return str_optvalue_opt (prev);
|
return str_optvalue_opt (prev);
|
|
|
case PTR_ALIAS:
|
case PTR_ALIAS:
|
advance ();
|
advance ();
|
return type_optvalue (prev, "ptr_alias");
|
return type_optvalue (prev, "ptr_alias");
|
|
|
case PARAM_IS:
|
case PARAM_IS:
|
return type_optvalue (prev, advance ());
|
return type_optvalue (prev, advance ());
|
|
|
case NESTED_PTR:
|
case NESTED_PTR:
|
advance ();
|
advance ();
|
return nestedptr_optvalue (prev);
|
return nestedptr_optvalue (prev);
|
|
|
default:
|
default:
|
parse_error ("expected an option keyword, have %s",
|
parse_error ("expected an option keyword, have %s",
|
print_cur_token ());
|
print_cur_token ());
|
advance ();
|
advance ();
|
return create_option (prev, "", "");
|
return create_option (prev, "", "");
|
}
|
}
|
}
|
}
|
|
|
/* One comma-separated list of options. */
|
/* One comma-separated list of options. */
|
static options_p
|
static options_p
|
option_seq (void)
|
option_seq (void)
|
{
|
{
|
options_p o;
|
options_p o;
|
|
|
o = option (0);
|
o = option (0);
|
while (token () == ',')
|
while (token () == ',')
|
{
|
{
|
advance ();
|
advance ();
|
o = option (o);
|
o = option (o);
|
}
|
}
|
return o;
|
return o;
|
}
|
}
|
|
|
/* GTY marker: 'GTY' '(' '(' option_seq? ')' ')' */
|
/* GTY marker: 'GTY' '(' '(' option_seq? ')' ')' */
|
static options_p
|
static options_p
|
gtymarker (void)
|
gtymarker (void)
|
{
|
{
|
options_p result = 0;
|
options_p result = 0;
|
require (GTY_TOKEN);
|
require (GTY_TOKEN);
|
require ('(');
|
require ('(');
|
require ('(');
|
require ('(');
|
if (token () != ')')
|
if (token () != ')')
|
result = option_seq ();
|
result = option_seq ();
|
require (')');
|
require (')');
|
require (')');
|
require (')');
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Optional GTY marker. */
|
/* Optional GTY marker. */
|
static options_p
|
static options_p
|
gtymarker_opt (void)
|
gtymarker_opt (void)
|
{
|
{
|
if (token () != GTY_TOKEN)
|
if (token () != GTY_TOKEN)
|
return 0;
|
return 0;
|
return gtymarker ();
|
return gtymarker ();
|
}
|
}
|
|
|
/* Declarators. The logic here is largely lifted from c-parser.c.
|
/* Declarators. The logic here is largely lifted from c-parser.c.
|
Note that we do not have to process abstract declarators, which can
|
Note that we do not have to process abstract declarators, which can
|
appear only in parameter type lists or casts (but see absdecl,
|
appear only in parameter type lists or casts (but see absdecl,
|
above). Also, type qualifiers are thrown out in gengtype-lex.l so
|
above). Also, type qualifiers are thrown out in gengtype-lex.l so
|
we don't have to do it. */
|
we don't have to do it. */
|
|
|
/* array_and_function_declarators_opt:
|
/* array_and_function_declarators_opt:
|
\epsilon
|
\epsilon
|
array_and_function_declarators_opt ARRAY
|
array_and_function_declarators_opt ARRAY
|
array_and_function_declarators_opt '(' ... ')'
|
array_and_function_declarators_opt '(' ... ')'
|
|
|
where '...' indicates stuff we ignore except insofar as grouping
|
where '...' indicates stuff we ignore except insofar as grouping
|
symbols ()[]{} must balance.
|
symbols ()[]{} must balance.
|
|
|
Subroutine of direct_declarator - do not use elsewhere. */
|
Subroutine of direct_declarator - do not use elsewhere. */
|
|
|
static type_p
|
static type_p
|
array_and_function_declarators_opt (type_p ty)
|
array_and_function_declarators_opt (type_p ty)
|
{
|
{
|
if (token () == ARRAY)
|
if (token () == ARRAY)
|
{
|
{
|
const char *array = advance ();
|
const char *array = advance ();
|
return create_array (array_and_function_declarators_opt (ty), array);
|
return create_array (array_and_function_declarators_opt (ty), array);
|
}
|
}
|
else if (token () == '(')
|
else if (token () == '(')
|
{
|
{
|
/* We don't need exact types for functions. */
|
/* We don't need exact types for functions. */
|
consume_balanced ('(', ')');
|
consume_balanced ('(', ')');
|
array_and_function_declarators_opt (ty);
|
array_and_function_declarators_opt (ty);
|
return create_scalar_type ("function type");
|
return create_scalar_type ("function type");
|
}
|
}
|
else
|
else
|
return ty;
|
return ty;
|
}
|
}
|
|
|
static type_p inner_declarator (type_p, const char **, options_p *);
|
static type_p inner_declarator (type_p, const char **, options_p *);
|
|
|
/* direct_declarator:
|
/* direct_declarator:
|
'(' inner_declarator ')'
|
'(' inner_declarator ')'
|
gtymarker_opt ID array_and_function_declarators_opt
|
gtymarker_opt ID array_and_function_declarators_opt
|
|
|
Subroutine of declarator, mutually recursive with inner_declarator;
|
Subroutine of declarator, mutually recursive with inner_declarator;
|
do not use elsewhere. */
|
do not use elsewhere. */
|
static type_p
|
static type_p
|
direct_declarator (type_p ty, const char **namep, options_p *optsp)
|
direct_declarator (type_p ty, const char **namep, options_p *optsp)
|
{
|
{
|
/* The first token in a direct-declarator must be an ID, a
|
/* The first token in a direct-declarator must be an ID, a
|
GTY marker, or an open parenthesis. */
|
GTY marker, or an open parenthesis. */
|
switch (token ())
|
switch (token ())
|
{
|
{
|
case GTY_TOKEN:
|
case GTY_TOKEN:
|
*optsp = gtymarker ();
|
*optsp = gtymarker ();
|
/* fall through */
|
/* fall through */
|
case ID:
|
case ID:
|
*namep = require (ID);
|
*namep = require (ID);
|
break;
|
break;
|
|
|
case '(':
|
case '(':
|
advance ();
|
advance ();
|
ty = inner_declarator (ty, namep, optsp);
|
ty = inner_declarator (ty, namep, optsp);
|
require (')');
|
require (')');
|
break;
|
break;
|
|
|
default:
|
default:
|
parse_error ("expected '(', 'GTY', or an identifier, have %s",
|
parse_error ("expected '(', 'GTY', or an identifier, have %s",
|
print_cur_token ());
|
print_cur_token ());
|
/* Do _not_ advance if what we have is a close squiggle brace, as
|
/* Do _not_ advance if what we have is a close squiggle brace, as
|
we will get much better error recovery that way. */
|
we will get much better error recovery that way. */
|
if (token () != '}')
|
if (token () != '}')
|
advance ();
|
advance ();
|
return 0;
|
return 0;
|
}
|
}
|
return array_and_function_declarators_opt (ty);
|
return array_and_function_declarators_opt (ty);
|
}
|
}
|
|
|
/* The difference between inner_declarator and declarator is in the
|
/* The difference between inner_declarator and declarator is in the
|
handling of stars. Consider this declaration:
|
handling of stars. Consider this declaration:
|
|
|
char * (*pfc) (void)
|
char * (*pfc) (void)
|
|
|
It declares a pointer to a function that takes no arguments and
|
It declares a pointer to a function that takes no arguments and
|
returns a char*. To construct the correct type for this
|
returns a char*. To construct the correct type for this
|
declaration, the star outside the parentheses must be processed
|
declaration, the star outside the parentheses must be processed
|
_before_ the function type, the star inside the parentheses must
|
_before_ the function type, the star inside the parentheses must
|
be processed _after_ the function type. To accomplish this,
|
be processed _after_ the function type. To accomplish this,
|
declarator() creates pointers before recursing (it is actually
|
declarator() creates pointers before recursing (it is actually
|
coded as a while loop), whereas inner_declarator() recurses before
|
coded as a while loop), whereas inner_declarator() recurses before
|
creating pointers. */
|
creating pointers. */
|
|
|
/* inner_declarator:
|
/* inner_declarator:
|
'*' inner_declarator
|
'*' inner_declarator
|
direct_declarator
|
direct_declarator
|
|
|
Mutually recursive subroutine of direct_declarator; do not use
|
Mutually recursive subroutine of direct_declarator; do not use
|
elsewhere. */
|
elsewhere. */
|
|
|
static type_p
|
static type_p
|
inner_declarator (type_p ty, const char **namep, options_p *optsp)
|
inner_declarator (type_p ty, const char **namep, options_p *optsp)
|
{
|
{
|
if (token () == '*')
|
if (token () == '*')
|
{
|
{
|
type_p inner;
|
type_p inner;
|
advance ();
|
advance ();
|
inner = inner_declarator (ty, namep, optsp);
|
inner = inner_declarator (ty, namep, optsp);
|
if (inner == 0)
|
if (inner == 0)
|
return 0;
|
return 0;
|
else
|
else
|
return create_pointer (ty);
|
return create_pointer (ty);
|
}
|
}
|
else
|
else
|
return direct_declarator (ty, namep, optsp);
|
return direct_declarator (ty, namep, optsp);
|
}
|
}
|
|
|
/* declarator: '*'+ direct_declarator
|
/* declarator: '*'+ direct_declarator
|
|
|
This is the sole public interface to this part of the grammar.
|
This is the sole public interface to this part of the grammar.
|
Arguments are the type known so far, a pointer to where the name
|
Arguments are the type known so far, a pointer to where the name
|
may be stored, and a pointer to where GTY options may be stored.
|
may be stored, and a pointer to where GTY options may be stored.
|
Returns the final type. */
|
Returns the final type. */
|
|
|
static type_p
|
static type_p
|
declarator (type_p ty, const char **namep, options_p *optsp)
|
declarator (type_p ty, const char **namep, options_p *optsp)
|
{
|
{
|
*namep = 0;
|
*namep = 0;
|
*optsp = 0;
|
*optsp = 0;
|
while (token () == '*')
|
while (token () == '*')
|
{
|
{
|
advance ();
|
advance ();
|
ty = create_pointer (ty);
|
ty = create_pointer (ty);
|
}
|
}
|
return direct_declarator (ty, namep, optsp);
|
return direct_declarator (ty, namep, optsp);
|
}
|
}
|
|
|
/* Types and declarations. */
|
/* Types and declarations. */
|
|
|
/* Structure field(s) declaration:
|
/* Structure field(s) declaration:
|
(
|
(
|
type bitfield ';'
|
type bitfield ';'
|
| type declarator bitfield? ( ',' declarator bitfield? )+ ';'
|
| type declarator bitfield? ( ',' declarator bitfield? )+ ';'
|
)+
|
)+
|
|
|
Knows that such declarations must end with a close brace (or,
|
Knows that such declarations must end with a close brace (or,
|
erroneously, at EOF).
|
erroneously, at EOF).
|
*/
|
*/
|
static pair_p
|
static pair_p
|
struct_field_seq (void)
|
struct_field_seq (void)
|
{
|
{
|
pair_p f = 0;
|
pair_p f = 0;
|
type_p ty, dty;
|
type_p ty, dty;
|
options_p opts, dopts;
|
options_p opts, dopts;
|
const char *name;
|
const char *name;
|
bool another;
|
bool another;
|
|
|
do
|
do
|
{
|
{
|
ty = type (&opts, true);
|
ty = type (&opts, true);
|
/* Another piece of the IFCVT_EXTRA_FIELDS special case, see type(). */
|
/* Another piece of the IFCVT_EXTRA_FIELDS special case, see type(). */
|
if (!ty && token () == '}')
|
if (!ty && token () == '}')
|
break;
|
break;
|
|
|
if (!ty || token () == ':')
|
if (!ty || token () == ':')
|
{
|
{
|
consume_until_semi (false);
|
consume_until_semi (false);
|
continue;
|
continue;
|
}
|
}
|
|
|
do
|
do
|
{
|
{
|
dty = declarator (ty, &name, &dopts);
|
dty = declarator (ty, &name, &dopts);
|
/* There could be any number of weird things after the declarator,
|
/* There could be any number of weird things after the declarator,
|
notably bitfield declarations and __attribute__s. If this
|
notably bitfield declarations and __attribute__s. If this
|
function returns true, the last thing was a comma, so we have
|
function returns true, the last thing was a comma, so we have
|
more than one declarator paired with the current type. */
|
more than one declarator paired with the current type. */
|
another = consume_until_comma_or_semi (false);
|
another = consume_until_comma_or_semi (false);
|
|
|
if (!dty)
|
if (!dty)
|
continue;
|
continue;
|
|
|
if (opts && dopts)
|
if (opts && dopts)
|
parse_error ("two GTY(()) options for field %s", name);
|
parse_error ("two GTY(()) options for field %s", name);
|
if (opts && !dopts)
|
if (opts && !dopts)
|
dopts = opts;
|
dopts = opts;
|
|
|
f = create_field_at (f, dty, name, dopts, &lexer_line);
|
f = create_field_at (f, dty, name, dopts, &lexer_line);
|
}
|
}
|
while (another);
|
while (another);
|
}
|
}
|
while (token () != '}' && token () != EOF_TOKEN);
|
while (token () != '}' && token () != EOF_TOKEN);
|
return nreverse_pairs (f);
|
return nreverse_pairs (f);
|
}
|
}
|
|
|
/* This is called type(), but what it parses (sort of) is what C calls
|
/* This is called type(), but what it parses (sort of) is what C calls
|
declaration-specifiers and specifier-qualifier-list:
|
declaration-specifiers and specifier-qualifier-list:
|
|
|
SCALAR
|
SCALAR
|
| ID // typedef
|
| ID // typedef
|
| (STRUCT|UNION) ID? gtymarker? ( '{' gtymarker? struct_field_seq '}' )?
|
| (STRUCT|UNION) ID? gtymarker? ( '{' gtymarker? struct_field_seq '}' )?
|
| ENUM ID ( '{' ... '}' )?
|
| ENUM ID ( '{' ... '}' )?
|
|
|
Returns a partial type; under some conditions (notably
|
Returns a partial type; under some conditions (notably
|
"struct foo GTY((...)) thing;") it may write an options
|
"struct foo GTY((...)) thing;") it may write an options
|
structure to *OPTSP.
|
structure to *OPTSP.
|
*/
|
*/
|
static type_p
|
static type_p
|
type (options_p *optsp, bool nested)
|
type (options_p *optsp, bool nested)
|
{
|
{
|
const char *s;
|
const char *s;
|
*optsp = 0;
|
*optsp = 0;
|
switch (token ())
|
switch (token ())
|
{
|
{
|
case SCALAR:
|
case SCALAR:
|
s = advance ();
|
s = advance ();
|
return create_scalar_type (s);
|
return create_scalar_type (s);
|
|
|
case ID:
|
case ID:
|
case VEC_TOKEN:
|
case VEC_TOKEN:
|
s = typedef_name ();
|
s = typedef_name ();
|
return resolve_typedef (s, &lexer_line);
|
return resolve_typedef (s, &lexer_line);
|
|
|
case STRUCT:
|
case STRUCT:
|
case UNION:
|
case UNION:
|
{
|
{
|
options_p opts = 0;
|
options_p opts = 0;
|
/* GTY annotations follow attribute syntax
|
/* GTY annotations follow attribute syntax
|
GTY_BEFORE_ID is for union/struct declarations
|
GTY_BEFORE_ID is for union/struct declarations
|
GTY_AFTER_ID is for variable declarations. */
|
GTY_AFTER_ID is for variable declarations. */
|
enum {
|
enum {
|
NO_GTY,
|
NO_GTY,
|
GTY_BEFORE_ID,
|
GTY_BEFORE_ID,
|
GTY_AFTER_ID
|
GTY_AFTER_ID
|
} is_gty = NO_GTY;
|
} is_gty = NO_GTY;
|
bool is_union = (token () == UNION);
|
bool is_union = (token () == UNION);
|
advance ();
|
advance ();
|
|
|
/* Top-level structures that are not explicitly tagged GTY(())
|
/* Top-level structures that are not explicitly tagged GTY(())
|
are treated as mere forward declarations. This is because
|
are treated as mere forward declarations. This is because
|
there are a lot of structures that we don't need to know
|
there are a lot of structures that we don't need to know
|
about, and some of those have weird macro stuff in them
|
about, and some of those have weird macro stuff in them
|
that we can't handle. */
|
that we can't handle. */
|
if (nested || token () == GTY_TOKEN)
|
if (nested || token () == GTY_TOKEN)
|
{
|
{
|
is_gty = GTY_BEFORE_ID;
|
is_gty = GTY_BEFORE_ID;
|
opts = gtymarker_opt ();
|
opts = gtymarker_opt ();
|
}
|
}
|
|
|
if (token () == ID)
|
if (token () == ID)
|
s = advance ();
|
s = advance ();
|
else
|
else
|
s = xasprintf ("anonymous:%s:%d", lexer_line.file, lexer_line.line);
|
s = xasprintf ("anonymous:%s:%d", lexer_line.file, lexer_line.line);
|
|
|
/* Unfortunately above GTY_TOKEN check does not capture the
|
/* Unfortunately above GTY_TOKEN check does not capture the
|
typedef struct_type GTY case. */
|
typedef struct_type GTY case. */
|
if (token () == GTY_TOKEN)
|
if (token () == GTY_TOKEN)
|
{
|
{
|
is_gty = GTY_AFTER_ID;
|
is_gty = GTY_AFTER_ID;
|
opts = gtymarker_opt ();
|
opts = gtymarker_opt ();
|
}
|
}
|
|
|
if (is_gty)
|
if (is_gty)
|
{
|
{
|
if (token () == '{')
|
if (token () == '{')
|
{
|
{
|
pair_p fields;
|
pair_p fields;
|
|
|
if (is_gty == GTY_AFTER_ID)
|
if (is_gty == GTY_AFTER_ID)
|
parse_error ("GTY must be specified before identifier");
|
parse_error ("GTY must be specified before identifier");
|
|
|
advance ();
|
advance ();
|
fields = struct_field_seq ();
|
fields = struct_field_seq ();
|
require ('}');
|
require ('}');
|
return new_structure (s, is_union, &lexer_line, fields, opts);
|
return new_structure (s, is_union, &lexer_line, fields, opts);
|
}
|
}
|
}
|
}
|
else if (token () == '{')
|
else if (token () == '{')
|
consume_balanced ('{', '}');
|
consume_balanced ('{', '}');
|
if (opts)
|
if (opts)
|
*optsp = opts;
|
*optsp = opts;
|
return find_structure (s, is_union);
|
return find_structure (s, is_union);
|
}
|
}
|
|
|
case ENUM:
|
case ENUM:
|
advance ();
|
advance ();
|
if (token () == ID)
|
if (token () == ID)
|
s = advance ();
|
s = advance ();
|
else
|
else
|
s = xasprintf ("anonymous:%s:%d", lexer_line.file, lexer_line.line);
|
s = xasprintf ("anonymous:%s:%d", lexer_line.file, lexer_line.line);
|
|
|
if (token () == '{')
|
if (token () == '{')
|
consume_balanced ('{','}');
|
consume_balanced ('{','}');
|
return create_scalar_type (s);
|
return create_scalar_type (s);
|
|
|
default:
|
default:
|
parse_error ("expected a type specifier, have %s", print_cur_token ());
|
parse_error ("expected a type specifier, have %s", print_cur_token ());
|
advance ();
|
advance ();
|
return create_scalar_type ("erroneous type");
|
return create_scalar_type ("erroneous type");
|
}
|
}
|
}
|
}
|
|
|
/* Top level constructs. */
|
/* Top level constructs. */
|
|
|
/* Dispatch declarations beginning with 'typedef'. */
|
/* Dispatch declarations beginning with 'typedef'. */
|
|
|
static void
|
static void
|
typedef_decl (void)
|
typedef_decl (void)
|
{
|
{
|
type_p ty, dty;
|
type_p ty, dty;
|
const char *name;
|
const char *name;
|
options_p opts;
|
options_p opts;
|
bool another;
|
bool another;
|
|
|
gcc_assert (token () == TYPEDEF);
|
gcc_assert (token () == TYPEDEF);
|
advance ();
|
advance ();
|
|
|
ty = type (&opts, false);
|
ty = type (&opts, false);
|
if (!ty)
|
if (!ty)
|
return;
|
return;
|
if (opts)
|
if (opts)
|
parse_error ("GTY((...)) cannot be applied to a typedef");
|
parse_error ("GTY((...)) cannot be applied to a typedef");
|
do
|
do
|
{
|
{
|
dty = declarator (ty, &name, &opts);
|
dty = declarator (ty, &name, &opts);
|
if (opts)
|
if (opts)
|
parse_error ("GTY((...)) cannot be applied to a typedef");
|
parse_error ("GTY((...)) cannot be applied to a typedef");
|
|
|
/* Yet another place where we could have junk (notably attributes)
|
/* Yet another place where we could have junk (notably attributes)
|
after the declarator. */
|
after the declarator. */
|
another = consume_until_comma_or_semi (false);
|
another = consume_until_comma_or_semi (false);
|
if (dty)
|
if (dty)
|
do_typedef (name, dty, &lexer_line);
|
do_typedef (name, dty, &lexer_line);
|
}
|
}
|
while (another);
|
while (another);
|
}
|
}
|
|
|
/* Structure definition: type() does all the work. */
|
/* Structure definition: type() does all the work. */
|
|
|
static void
|
static void
|
struct_or_union (void)
|
struct_or_union (void)
|
{
|
{
|
options_p dummy;
|
options_p dummy;
|
type (&dummy, false);
|
type (&dummy, false);
|
/* There may be junk after the type: notably, we cannot currently
|
/* There may be junk after the type: notably, we cannot currently
|
distinguish 'struct foo *function(prototype);' from 'struct foo;'
|
distinguish 'struct foo *function(prototype);' from 'struct foo;'
|
... we could call declarator(), but it's a waste of time at
|
... we could call declarator(), but it's a waste of time at
|
present. Instead, just eat whatever token is currently lookahead
|
present. Instead, just eat whatever token is currently lookahead
|
and go back to lexical skipping mode. */
|
and go back to lexical skipping mode. */
|
advance ();
|
advance ();
|
}
|
}
|
|
|
/* GC root declaration:
|
/* GC root declaration:
|
(extern|static) gtymarker? type ID array_declarators_opt (';'|'=')
|
(extern|static) gtymarker? type ID array_declarators_opt (';'|'=')
|
If the gtymarker is not present, we ignore the rest of the declaration. */
|
If the gtymarker is not present, we ignore the rest of the declaration. */
|
static void
|
static void
|
extern_or_static (void)
|
extern_or_static (void)
|
{
|
{
|
options_p opts, opts2, dopts;
|
options_p opts, opts2, dopts;
|
type_p ty, dty;
|
type_p ty, dty;
|
const char *name;
|
const char *name;
|
require2 (EXTERN, STATIC);
|
require2 (EXTERN, STATIC);
|
|
|
if (token () != GTY_TOKEN)
|
if (token () != GTY_TOKEN)
|
{
|
{
|
advance ();
|
advance ();
|
return;
|
return;
|
}
|
}
|
|
|
opts = gtymarker ();
|
opts = gtymarker ();
|
ty = type (&opts2, true); /* if we get here, it's got a GTY(()) */
|
ty = type (&opts2, true); /* if we get here, it's got a GTY(()) */
|
dty = declarator (ty, &name, &dopts);
|
dty = declarator (ty, &name, &dopts);
|
|
|
if ((opts && dopts) || (opts && opts2) || (opts2 && dopts))
|
if ((opts && dopts) || (opts && opts2) || (opts2 && dopts))
|
parse_error ("GTY((...)) specified more than once for %s", name);
|
parse_error ("GTY((...)) specified more than once for %s", name);
|
else if (opts2)
|
else if (opts2)
|
opts = opts2;
|
opts = opts2;
|
else if (dopts)
|
else if (dopts)
|
opts = dopts;
|
opts = dopts;
|
|
|
if (dty)
|
if (dty)
|
{
|
{
|
note_variable (name, adjust_field_type (dty, opts), opts, &lexer_line);
|
note_variable (name, adjust_field_type (dty, opts), opts, &lexer_line);
|
require2 (';', '=');
|
require2 (';', '=');
|
}
|
}
|
}
|
}
|
|
|
/* Definition of a generic VEC structure:
|
/* Definition of a generic VEC structure:
|
|
|
'DEF_VEC_[IPO]' '(' id ')' ';'
|
'DEF_VEC_[IPO]' '(' id ')' ';'
|
|
|
Scalar VECs require slightly different treatment than otherwise -
|
Scalar VECs require slightly different treatment than otherwise -
|
that's handled in note_def_vec, we just pass it along.*/
|
that's handled in note_def_vec, we just pass it along.*/
|
static void
|
static void
|
def_vec (void)
|
def_vec (void)
|
{
|
{
|
bool is_scalar = (token() == DEFVEC_I);
|
bool is_scalar = (token() == DEFVEC_I);
|
const char *type;
|
const char *type;
|
|
|
require2 (DEFVEC_OP, DEFVEC_I);
|
require2 (DEFVEC_OP, DEFVEC_I);
|
require ('(');
|
require ('(');
|
type = require2 (ID, SCALAR);
|
type = require2 (ID, SCALAR);
|
require (')');
|
require (')');
|
require (';');
|
require (';');
|
|
|
if (!type)
|
if (!type)
|
return;
|
return;
|
|
|
note_def_vec (type, is_scalar, &lexer_line);
|
note_def_vec (type, is_scalar, &lexer_line);
|
note_def_vec_alloc (type, "none", &lexer_line);
|
note_def_vec_alloc (type, "none", &lexer_line);
|
}
|
}
|
|
|
/* Definition of an allocation strategy for a VEC structure:
|
/* Definition of an allocation strategy for a VEC structure:
|
|
|
'DEF_VEC_ALLOC_[IPO]' '(' id ',' id ')' ';'
|
'DEF_VEC_ALLOC_[IPO]' '(' id ',' id ')' ';'
|
|
|
For purposes of gengtype, this just declares a wrapper structure. */
|
For purposes of gengtype, this just declares a wrapper structure. */
|
static void
|
static void
|
def_vec_alloc (void)
|
def_vec_alloc (void)
|
{
|
{
|
const char *type, *astrat;
|
const char *type, *astrat;
|
|
|
require (DEFVEC_ALLOC);
|
require (DEFVEC_ALLOC);
|
require ('(');
|
require ('(');
|
type = require2 (ID, SCALAR);
|
type = require2 (ID, SCALAR);
|
require (',');
|
require (',');
|
astrat = require (ID);
|
astrat = require (ID);
|
require (')');
|
require (')');
|
require (';');
|
require (';');
|
|
|
if (!type || !astrat)
|
if (!type || !astrat)
|
return;
|
return;
|
|
|
note_def_vec_alloc (type, astrat, &lexer_line);
|
note_def_vec_alloc (type, astrat, &lexer_line);
|
}
|
}
|
|
|
/* Parse the file FNAME for GC-relevant declarations and definitions.
|
/* Parse the file FNAME for GC-relevant declarations and definitions.
|
This is the only entry point to this file. */
|
This is the only entry point to this file. */
|
void
|
void
|
parse_file (const char *fname)
|
parse_file (const char *fname)
|
{
|
{
|
yybegin (fname);
|
yybegin (fname);
|
for (;;)
|
for (;;)
|
{
|
{
|
switch (token ())
|
switch (token ())
|
{
|
{
|
case EXTERN:
|
case EXTERN:
|
case STATIC:
|
case STATIC:
|
extern_or_static ();
|
extern_or_static ();
|
break;
|
break;
|
|
|
case STRUCT:
|
case STRUCT:
|
case UNION:
|
case UNION:
|
struct_or_union ();
|
struct_or_union ();
|
break;
|
break;
|
|
|
case TYPEDEF:
|
case TYPEDEF:
|
typedef_decl ();
|
typedef_decl ();
|
break;
|
break;
|
|
|
case DEFVEC_OP:
|
case DEFVEC_OP:
|
case DEFVEC_I:
|
case DEFVEC_I:
|
def_vec ();
|
def_vec ();
|
break;
|
break;
|
|
|
case DEFVEC_ALLOC:
|
case DEFVEC_ALLOC:
|
def_vec_alloc ();
|
def_vec_alloc ();
|
break;
|
break;
|
|
|
case EOF_TOKEN:
|
case EOF_TOKEN:
|
goto eof;
|
goto eof;
|
|
|
default:
|
default:
|
parse_error ("unexpected top level token, %s", print_cur_token ());
|
parse_error ("unexpected top level token, %s", print_cur_token ());
|
goto eof;
|
goto eof;
|
}
|
}
|
lexer_toplevel_done = 1;
|
lexer_toplevel_done = 1;
|
}
|
}
|
|
|
eof:
|
eof:
|
advance ();
|
advance ();
|
yyend ();
|
yyend ();
|
}
|
}
|
|
|
