| /* 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; |
| }; |
| |
| /* The generic method for targets to specify how their registers are |
| named. The mapping can be derived from three sources: |
| REGISTER_NAME; std_regs; or a target specific alias hook. */ |
| |
| extern int target_map_name_to_register PARAMS ((char *, int)); |
| |
| #endif /* PARSER_DEFS_H */ |