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jeremybenn |
/* Interface to functions for deciding which macros are currently in scope.
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Copyright (C) 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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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 3 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, see <http://www.gnu.org/licenses/>. */
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#ifndef MACROSCOPE_H
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#define MACROSCOPE_H
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#include "macrotab.h"
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#include "symtab.h"
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/* The table of macros defined by the user. */
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extern struct macro_table *macro_user_macros;
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/* All the information we need to decide which macro definitions are
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in scope: a source file (either a main source file or an
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#inclusion), and a line number in that file. */
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struct macro_scope {
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struct macro_source_file *file;
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int line;
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};
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/* Return a `struct macro_scope' object corresponding to the symtab
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and line given in SAL. If we have no macro information for that
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location, or if SAL's pc is zero, return zero. */
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struct macro_scope *sal_macro_scope (struct symtab_and_line sal);
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/* Return a `struct macro_scope' object representing just the
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user-defined macros. The result is allocated using xmalloc; the
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caller is responsible for freeing it. */
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struct macro_scope *user_macro_scope (void);
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/* Return a `struct macro_scope' object describing the scope the `macro
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expand' and `macro expand-once' commands should use for looking up
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macros. If we have a selected frame, this is the source location of
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its PC; otherwise, this is the last listing position.
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If we have no macro information for the current location, return
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the user macro scope.
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The object returned is allocated using xmalloc; the caller is
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responsible for freeing it. */
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struct macro_scope *default_macro_scope (void);
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/* Look up the definition of the macro named NAME in scope at the source
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location given by BATON, which must be a pointer to a `struct
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macro_scope' structure. This function is suitable for use as
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a macro_lookup_ftype function. */
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struct macro_definition *standard_macro_lookup (const char *name, void *baton);
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#endif /* MACROSCOPE_H */
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