binutils-gdb/gdb/c-lang.h
Jim Blandy 84f0252a03 Expand preprocessor macros in C expressions.
* c-lang.h: #include "macroexp.h", for macro_lookup_ftype.
(scan_macro_expansion, scanning_macro_expansion,
finished_macro_expansion): New function declarations.
(expression_macro_lookup_func, expression_macro_lookup_baton): New
variable declarations.
* parser-defs.h (expression_context_pc): New declaration.
* parse.c (expression_context_pc): New variable.
(parse_exp_1): Set expression_context_pc, as well as
expression_context_block.
* c-exp.y (yylex): If we're not already reading the result of a
macro expansion, try to macro-expand the next token.  When we're
done scanning a macro expansion, switch back to the mainline text.
Commas and `if's in a macro's expansion don't terminate the input.
* c-lang.c: #include "macroscope.h" and "gdb_assert.h".
(macro_original_text, macro_expanded_text,
expression_macro_lookup_func, expression_macro_lookup_baton): New
variables.
(scan_macro_expansion, scanning_macro_expansion,
finished_macro_expansion, scan_macro_cleanup, null_macro_lookup,
c_preprocess_and_parse): New functions.
(c_language_defn, cplus_language_defn, asm_language_defn): Call
c_preprocess_and_parse, instead of c_parse.
* Makefile.in (c_lang_h): Note that this #includes macroexp.h.
(c-lang.o): Note dependency on macroscope.h and gdb_assert.h.
2002-05-17 17:57:48 +00:00

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C

/* C language support definitions for GDB, the GNU debugger.
Copyright 1992, 1994, 1995, 1996, 1997, 1998, 2000, 2002
Free Software Foundation, Inc.
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 (C_LANG_H)
#define C_LANG_H 1
#include "value.h"
#include "macroexp.h"
extern int c_parse (void); /* Defined in c-exp.y */
extern void c_error (char *); /* Defined in c-exp.y */
/* Defined in c-typeprint.c */
extern void c_print_type (struct type *, char *, struct ui_file *, int,
int);
extern int c_val_print (struct type *, char *, int, CORE_ADDR,
struct ui_file *, int, int, int,
enum val_prettyprint);
extern int c_value_print (struct value *, struct ui_file *, int,
enum val_prettyprint);
/* These are in c-lang.c: */
extern void c_printchar (int, struct ui_file *);
extern void c_printstr (struct ui_file * stream, char *string,
unsigned int length, int width,
int force_ellipses);
extern void scan_macro_expansion (char *expansion);
extern int scanning_macro_expansion (void);
extern void finished_macro_expansion (void);
extern macro_lookup_ftype *expression_macro_lookup_func;
extern void *expression_macro_lookup_baton;
extern struct type *c_create_fundamental_type (struct objfile *, int);
extern struct type **const (c_builtin_types[]);
/* These are in c-typeprint.c: */
extern void c_type_print_base (struct type *, struct ui_file *, int, int);
extern void c_type_print_varspec_prefix (struct type *, struct ui_file *,
int, int);
/* These are in cp-valprint.c */
extern int vtblprint; /* Controls printing of vtbl's */
extern int static_field_print;
extern void cp_print_class_member (char *, struct type *, struct ui_file *,
char *);
extern void cp_print_class_method (char *, struct type *, struct ui_file *);
extern void cp_print_value_fields (struct type *, struct type *, char *,
int, CORE_ADDR, struct ui_file *, int,
int, enum val_prettyprint,
struct type **, int);
extern int cp_is_vtbl_ptr_type (struct type *);
extern int cp_is_vtbl_member (struct type *);
#endif /* !defined (C_LANG_H) */