1144513Simp/* Interface to functions for deciding which macros are currently in scope. 2144513Simp Copyright 2002 Free Software Foundation, Inc. 3144513Simp Contributed by Red Hat, Inc. 4144513Simp 5144513Simp This file is part of GDB. 6144513Simp 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. */ 21 22#ifndef MACROSCOPE_H 23#define MACROSCOPE_H 24 25#include "macrotab.h" 26#include "symtab.h" 27 28 29/* All the information we need to decide which macro definitions are 30 in scope: a source file (either a main source file or an 31 #inclusion), and a line number in that file. */ 32struct macro_scope { 33 struct macro_source_file *file; 34 int line; 35}; 36 37 38/* Return a `struct macro_scope' object corresponding to the symtab 39 and line given in SAL. If we have no macro information for that 40 location, or if SAL's pc is zero, return zero. */ 41struct macro_scope *sal_macro_scope (struct symtab_and_line sal); 42 43 44/* Return a `struct macro_scope' object describing the scope the `macro 45 expand' and `macro expand-once' commands should use for looking up 46 macros. If we have a selected frame, this is the source location of 47 its PC; otherwise, this is the last listing position. 48 49 If we have no macro information for the current location, return zero. 50 51 The object returned is allocated using xmalloc; the caller is 52 responsible for freeing it. */ 53struct macro_scope *default_macro_scope (void); 54 55 56/* Look up the definition of the macro named NAME in scope at the source 57 location given by BATON, which must be a pointer to a `struct 58 macro_scope' structure. This function is suitable for use as 59 a macro_lookup_ftype function. */ 60struct macro_definition *standard_macro_lookup (const char *name, void *baton); 61 62 63#endif /* MACROSCOPE_H */ 64