-/* macro.h - header file for macro support for gas and gasp
- Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+/* macro.h - header file for macro support for gas
+ Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2003, 2004
+ Free Software Foundation, Inc.
Written by Steve and Judy Chamberlain of Cygnus Support,
sac@cygnus.com
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#ifndef MACRO_H
#include "ansidecl.h"
#include "sb.h"
+/* Structures used to store macros.
+
+ Each macro knows its name and included text. It gets built with a
+ list of formal arguments, and also keeps a hash table which points
+ into the list to speed up formal search. Each formal knows its
+ name and its default value. Each time the macro is expanded, the
+ formals get the actual values attached to them. */
+
+/* Describe the formal arguments to a macro. */
+
+typedef struct formal_struct {
+ struct formal_struct *next; /* Next formal in list. */
+ sb name; /* Name of the formal. */
+ sb def; /* The default value. */
+ sb actual; /* The actual argument (changed on each expansion). */
+ int index; /* The index of the formal 0..formal_count - 1. */
+ enum formal_type
+ {
+ FORMAL_OPTIONAL,
+ FORMAL_REQUIRED,
+ FORMAL_VARARG
+ } type; /* The kind of the formal. */
+} formal_entry;
+
+/* Other values found in the index field of a formal_entry. */
+#define QUAL_INDEX (-1)
+#define NARG_INDEX (-2)
+#define LOCAL_INDEX (-3)
+
+/* Describe the macro. */
+
+typedef struct macro_struct
+{
+ sb sub; /* Substitution text. */
+ int formal_count; /* Number of formal args. */
+ formal_entry *formals; /* Pointer to list of formal_structs. */
+ struct hash_control *formal_hash; /* Hash table of formals. */
+ const char *name; /* Macro name. */
+ char *file; /* File the macro was defined in. */
+ unsigned int line; /* Line number of definition. */
+} macro_entry;
+
/* Whether any macros have been defined. */
extern int macro_defined;
-extern int buffer_and_nest
- PARAMS ((const char *, const char *, sb *, int (*) PARAMS ((sb *))));
+/* The macro nesting level. */
+
+extern int macro_nest;
+
+/* The macro hash table. */
+
+extern struct hash_control *macro_hash;
+
+extern int buffer_and_nest (const char *, const char *, sb *, int (*) (sb *));
extern void macro_init
- PARAMS ((int alternate, int mri,
- int (*) PARAMS ((const char *, int, sb *, int *))));
+ (int, int, int, int (*) (const char *, int, sb *, int *));
+extern void macro_set_alternate (int);
+extern void macro_mri_mode (int);
extern const char *define_macro
- PARAMS ((int idx, sb *in, sb *label, int (*get_line) PARAMS ((sb *))));
-extern int check_macro PARAMS ((const char *, sb *, int, const char **));
-extern const char *expand_irp
- PARAMS ((int, int, sb *, sb *, int (*) PARAMS ((sb *)), int));
+ (int, sb *, sb *, int (*) (sb *), char *, unsigned int, const char **);
+extern int check_macro (const char *, sb *, const char **, macro_entry **);
+extern void delete_macro (const char *);
+extern const char *expand_irp (int, int, sb *, sb *, int (*) (sb *));
#endif