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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [gas/] [macro.h] - Blame information for rev 816

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/* macro.h - header file for macro support for gas
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   Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2006,
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   2007 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
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   02110-1301, USA.  */
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#ifndef MACRO_H
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#define MACRO_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 attached 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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  enum formal_type
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    {
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      FORMAL_OPTIONAL,
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      FORMAL_REQUIRED,
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      FORMAL_VARARG
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    } type;                     /* The kind of the formal.  */
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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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{
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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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  const char *name;                     /* Macro name.  */
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  char *file;                           /* File the macro was defined in.  */
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  unsigned int line;                    /* Line number of definition.  */
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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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/* The macro hash table.  */
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extern struct hash_control *macro_hash;
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extern int buffer_and_nest (const char *, const char *, sb *, int (*) (sb *));
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extern void macro_init
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  (int, int, int, int (*) (const char *, int, sb *, int *));
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extern void macro_set_alternate (int);
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extern void macro_mri_mode (int);
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extern const char *define_macro
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  (int, sb *, sb *, int (*) (sb *), char *, unsigned int, const char **);
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extern int check_macro (const char *, sb *, const char **, macro_entry **);
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extern void delete_macro (const char *);
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extern const char *expand_irp (int, int, sb *, sb *, int (*) (sb *));
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#endif

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