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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [parser-defs.h] - Blame information for rev 1765

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1 104 markom
/* Parser definitions for GDB.
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   Copyright (C) 1986, 1989, 1990, 1991 Free Software Foundation, Inc.
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   Modified from expread.y by the Department of Computer Science at the
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   State University of New York at Buffalo.
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   This file is part of GDB.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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#if !defined (PARSER_DEFS_H)
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#define PARSER_DEFS_H 1
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struct std_regs
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  {
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    char *name;
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    int regnum;
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  };
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extern struct std_regs *std_regs;
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extern unsigned num_std_regs;
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extern struct expression *expout;
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extern int expout_size;
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extern int expout_ptr;
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/* If this is nonzero, this block is used as the lexical context
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   for symbol names.  */
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extern struct block *expression_context_block;
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/* The innermost context required by the stack and register variables
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   we've encountered so far. */
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extern struct block *innermost_block;
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/* The block in which the most recently discovered symbol was found.
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   FIXME: Should be declared along with lookup_symbol in symtab.h; is not
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   related specifically to parsing.  */
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extern struct block *block_found;
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/* Number of arguments seen so far in innermost function call.  */
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extern int arglist_len;
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/* A string token, either a char-string or bit-string.  Char-strings are
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   used, for example, for the names of symbols. */
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struct stoken
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  {
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    /* Pointer to first byte of char-string or first bit of bit-string */
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    char *ptr;
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    /* Length of string in bytes for char-string or bits for bit-string */
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    int length;
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  };
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struct ttype
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  {
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    struct stoken stoken;
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    struct type *type;
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  };
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struct symtoken
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  {
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    struct stoken stoken;
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    struct symbol *sym;
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    int is_a_field_of_this;
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  };
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/* For parsing of complicated types.
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   An array should be preceded in the list by the size of the array.  */
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enum type_pieces
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  {
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    tp_end = -1, tp_pointer, tp_reference, tp_array, tp_function
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  };
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/* The stack can contain either an enum type_pieces or an int.  */
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union type_stack_elt
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  {
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    enum type_pieces piece;
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    int int_val;
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  };
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extern union type_stack_elt *type_stack;
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extern int type_stack_depth, type_stack_size;
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extern void write_exp_elt PARAMS ((union exp_element));
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extern void write_exp_elt_opcode PARAMS ((enum exp_opcode));
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extern void write_exp_elt_sym PARAMS ((struct symbol *));
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extern void write_exp_elt_longcst PARAMS ((LONGEST));
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extern void write_exp_elt_dblcst PARAMS ((DOUBLEST));
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extern void write_exp_elt_type PARAMS ((struct type *));
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extern void write_exp_elt_intern PARAMS ((struct internalvar *));
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extern void write_exp_string PARAMS ((struct stoken));
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extern void write_exp_bitstring PARAMS ((struct stoken));
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extern void write_exp_elt_block PARAMS ((struct block *));
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extern void write_exp_msymbol PARAMS ((struct minimal_symbol *,
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                                       struct type *, struct type *));
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extern void write_dollar_variable PARAMS ((struct stoken str));
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extern struct symbol *parse_nested_classes_for_hpacc PARAMS ((char *, int, char **, int *, char **));
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extern char *find_template_name_end PARAMS ((char *));
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extern void
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start_arglist PARAMS ((void));
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extern int
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end_arglist PARAMS ((void));
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extern char *
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  copy_name PARAMS ((struct stoken));
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extern void
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push_type PARAMS ((enum type_pieces));
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extern void
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push_type_int PARAMS ((int));
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extern enum type_pieces
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pop_type PARAMS ((void));
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extern int
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pop_type_int PARAMS ((void));
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extern int
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length_of_subexp PARAMS ((struct expression *, int));
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extern struct type *follow_types PARAMS ((struct type *));
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/* During parsing of a C expression, the pointer to the next character
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   is in this variable.  */
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extern char *lexptr;
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/* Tokens that refer to names do so with explicit pointer and length,
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   so they can share the storage that lexptr is parsing.
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   When it is necessary to pass a name to a function that expects
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   a null-terminated string, the substring is copied out
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   into a block of storage that namecopy points to.
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   namecopy is allocated once, guaranteed big enough, for each parsing.  */
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extern char *namecopy;
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/* Current depth in parentheses within the expression.  */
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extern int paren_depth;
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/* Nonzero means stop parsing on first comma (if not within parentheses).  */
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extern int comma_terminates;
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/* These codes indicate operator precedences for expression printing,
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   least tightly binding first.  */
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/* Adding 1 to a precedence value is done for binary operators,
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   on the operand which is more tightly bound, so that operators
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   of equal precedence within that operand will get parentheses.  */
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/* PREC_HYPER and PREC_ABOVE_COMMA are not the precedence of any operator;
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   they are used as the "surrounding precedence" to force
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   various kinds of things to be parenthesized.  */
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enum precedence
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  {
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    PREC_NULL, PREC_COMMA, PREC_ABOVE_COMMA, PREC_ASSIGN, PREC_LOGICAL_OR,
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    PREC_LOGICAL_AND, PREC_BITWISE_IOR, PREC_BITWISE_AND, PREC_BITWISE_XOR,
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    PREC_EQUAL, PREC_ORDER, PREC_SHIFT, PREC_ADD, PREC_MUL, PREC_REPEAT,
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    PREC_HYPER, PREC_PREFIX, PREC_SUFFIX, PREC_BUILTIN_FUNCTION
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  };
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/* Table mapping opcodes into strings for printing operators
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   and precedences of the operators.  */
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struct op_print
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  {
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    char *string;
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    enum exp_opcode opcode;
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    /* Precedence of operator.  These values are used only by comparisons.  */
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    enum precedence precedence;
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    /* For a binary operator:  1 iff right associate.
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       For a unary operator:  1 iff postfix. */
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    int right_assoc;
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  };
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/* The generic method for targets to specify how their registers are
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   named.  The mapping can be derived from three sources:
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   REGISTER_NAME; std_regs; or a target specific alias hook. */
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extern int target_map_name_to_register PARAMS ((char *, int));
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#endif /* PARSER_DEFS_H */

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