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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/parser-defs.h
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
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-/* Parser definitions for GDB.
- Copyright (C) 1986, 1989, 1990, 1991 Free Software Foundation, Inc.
- Modified from expread.y by the Department of Computer Science at the
- State University of New York at Buffalo.
-
-This file is part of GDB.
-
-This program 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 Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#if !defined (PARSER_DEFS_H)
-#define PARSER_DEFS_H 1
-
-struct std_regs {
- char *name;
- int regnum;
-};
-
-extern struct std_regs std_regs[];
-extern unsigned num_std_regs;
-
-extern struct expression *expout;
-extern int expout_size;
-extern int expout_ptr;
-
-/* If this is nonzero, this block is used as the lexical context
- for symbol names. */
-
-extern struct block *expression_context_block;
-
-/* The innermost context required by the stack and register variables
- we've encountered so far. */
-extern struct block *innermost_block;
-
-/* The block in which the most recently discovered symbol was found.
- FIXME: Should be declared along with lookup_symbol in symtab.h; is not
- related specifically to parsing. */
-extern struct block *block_found;
-
-/* Number of arguments seen so far in innermost function call. */
-extern int arglist_len;
-
-/* A string token, either a char-string or bit-string. Char-strings are
- used, for example, for the names of symbols. */
-
-struct stoken
- {
- /* Pointer to first byte of char-string or first bit of bit-string */
- char *ptr;
- /* Length of string in bytes for char-string or bits for bit-string */
- int length;
- };
-
-struct ttype
- {
- struct stoken stoken;
- struct type *type;
- };
-
-struct symtoken
- {
- struct stoken stoken;
- struct symbol *sym;
- int is_a_field_of_this;
- };
-
-/* For parsing of complicated types.
- An array should be preceded in the list by the size of the array. */
-enum type_pieces
- {tp_end = -1, tp_pointer, tp_reference, tp_array, tp_function};
-/* The stack can contain either an enum type_pieces or an int. */
-union type_stack_elt {
- enum type_pieces piece;
- int int_val;
-};
-extern union type_stack_elt *type_stack;
-extern int type_stack_depth, type_stack_size;
-
-extern void write_exp_elt PARAMS ((union exp_element));
-
-extern void write_exp_elt_opcode PARAMS ((enum exp_opcode));
-
-extern void write_exp_elt_sym PARAMS ((struct symbol *));
-
-extern void write_exp_elt_longcst PARAMS ((LONGEST));
-
-extern void write_exp_elt_dblcst PARAMS ((DOUBLEST));
-
-extern void write_exp_elt_type PARAMS ((struct type *));
-
-extern void write_exp_elt_intern PARAMS ((struct internalvar *));
-
-extern void write_exp_string PARAMS ((struct stoken));
-
-extern void write_exp_bitstring PARAMS ((struct stoken));
-
-extern void write_exp_elt_block PARAMS ((struct block *));
-
-extern void write_exp_msymbol PARAMS ((struct minimal_symbol *,
- struct type *, struct type *));
-
-extern void write_dollar_variable PARAMS ((struct stoken str));
-
-extern struct symbol * parse_nested_classes_for_hpacc PARAMS ((char *, int, char **, int *, char **));
-
-extern char * find_template_name_end PARAMS ((char *));
-
-extern void
-start_arglist PARAMS ((void));
-
-extern int
-end_arglist PARAMS ((void));
-
-extern char *
-copy_name PARAMS ((struct stoken));
-
-extern void
-push_type PARAMS ((enum type_pieces));
-
-extern void
-push_type_int PARAMS ((int));
-
-extern enum type_pieces
-pop_type PARAMS ((void));
-
-extern int
-pop_type_int PARAMS ((void));
-
-extern int
-length_of_subexp PARAMS ((struct expression *, int));
-
-extern struct type *follow_types PARAMS ((struct type *));
-
-/* During parsing of a C expression, the pointer to the next character
- is in this variable. */
-
-extern char *lexptr;
-
-/* Tokens that refer to names do so with explicit pointer and length,
- so they can share the storage that lexptr is parsing.
-
- When it is necessary to pass a name to a function that expects
- a null-terminated string, the substring is copied out
- into a block of storage that namecopy points to.
-
- namecopy is allocated once, guaranteed big enough, for each parsing. */
-
-extern char *namecopy;
-
-/* Current depth in parentheses within the expression. */
-
-extern int paren_depth;
-
-/* Nonzero means stop parsing on first comma (if not within parentheses). */
-
-extern int comma_terminates;
-
-/* These codes indicate operator precedences for expression printing,
- least tightly binding first. */
-/* Adding 1 to a precedence value is done for binary operators,
- on the operand which is more tightly bound, so that operators
- of equal precedence within that operand will get parentheses. */
-/* PREC_HYPER and PREC_ABOVE_COMMA are not the precedence of any operator;
- they are used as the "surrounding precedence" to force
- various kinds of things to be parenthesized. */
-enum precedence
-{ PREC_NULL, PREC_COMMA, PREC_ABOVE_COMMA, PREC_ASSIGN, PREC_LOGICAL_OR,
- PREC_LOGICAL_AND, PREC_BITWISE_IOR, PREC_BITWISE_AND, PREC_BITWISE_XOR,
- PREC_EQUAL, PREC_ORDER, PREC_SHIFT, PREC_ADD, PREC_MUL, PREC_REPEAT,
- PREC_HYPER, PREC_PREFIX, PREC_SUFFIX, PREC_BUILTIN_FUNCTION };
-
-/* Table mapping opcodes into strings for printing operators
- and precedences of the operators. */
-
-struct op_print
-{
- char *string;
- enum exp_opcode opcode;
- /* Precedence of operator. These values are used only by comparisons. */
- enum precedence precedence;
-
- /* For a binary operator: 1 iff right associate.
- For a unary operator: 1 iff postfix. */
- int right_assoc;
-};
-
-#endif /* PARSER_DEFS_H */