87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/* macro.h - header file for macro support for gas and gasp
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Copyright (C) 1994, 95, 96, 97, 98, 2000 Free Software Foundation, Inc.
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Written by Steve and Judy Chamberlain of Cygnus Support,
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sac@cygnus.com
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This file is part of GAS, the GNU Assembler.
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GAS 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 2, or (at your option)
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any later version.
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GAS 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 GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef MACRO_H
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#define MACRO_H
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#include "ansidecl.h"
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#include "sb.h"
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/* Structures used to store macros.
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Each macro knows its name and included text. It gets built with a
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list of formal arguments, and also keeps a hash table which points
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into the list to speed up formal search. Each formal knows its
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name and its default value. Each time the macro is expanded, the
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formals get the actual values attatched to them. */
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/* describe the formal arguments to a macro */
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typedef struct formal_struct {
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struct formal_struct *next; /* next formal in list */
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sb name; /* name of the formal */
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sb def; /* the default value */
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sb actual; /* the actual argument (changed on each expansion) */
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int index; /* the index of the formal 0..formal_count-1 */
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} formal_entry;
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/* Other values found in the index field of a formal_entry. */
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#define QUAL_INDEX (-1)
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#define NARG_INDEX (-2)
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#define LOCAL_INDEX (-3)
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/* describe the macro. */
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typedef struct macro_struct {
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sb sub; /* substitution text. */
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int formal_count; /* number of formal args. */
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formal_entry *formals; /* pointer to list of formal_structs */
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struct hash_control *formal_hash; /* hash table of formals. */
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} macro_entry;
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/* Whether any macros have been defined. */
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extern int macro_defined;
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/* The macro nesting level. */
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extern int macro_nest;
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extern int buffer_and_nest
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PARAMS ((const char *, const char *, sb *, int (*) PARAMS ((sb *))));
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extern void macro_init
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PARAMS ((int alternate, int mri, int strip_at,
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int (*) PARAMS ((const char *, int, sb *, int *))));
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extern void macro_mri_mode PARAMS ((int));
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extern const char *define_macro
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PARAMS ((int idx, sb *in, sb *label, int (*get_line) PARAMS ((sb *)),
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const char **namep));
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extern int check_macro PARAMS ((const char *, sb *, int, const char **,
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macro_entry **));
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extern void delete_macro PARAMS ((const char *));
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extern const char *expand_irp
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PARAMS ((int, int, sb *, sb *, int (*) PARAMS ((sb *)), int));
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#endif
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