736fdc62cf
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@955 626c5289-ae23-0410-ae9c-e8d60b6d4f22
132 lines
5.2 KiB
C
132 lines
5.2 KiB
C
/* -----------------------------------------------------------------------------
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* dohobj.h
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*
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* This file describes internally managed objects.
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*
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* Author(s) : David Beazley (beazley@cs.uchicago.edu)
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*
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* Copyright (C) 1999-2000. The University of Chicago
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* See the file LICENSE for information on usage and redistribution.
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*
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* $Header$
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* ----------------------------------------------------------------------------- */
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#ifndef _DOHOBJ_H
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#define _DOHOBJ_H
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#include "doh.h"
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/* Hash objects */
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typedef struct {
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DOH *(*doh_getattr)(DOH *obj, DOH *name); /* Get attribute */
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int (*doh_setattr)(DOH *obj, DOH *name, DOH *value); /* Set attribute */
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int (*doh_delattr)(DOH *obj, DOH *name); /* Del attribute */
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DOH *(*doh_firstkey)(DOH *obj); /* First key */
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DOH *(*doh_nextkey)(DOH *obj); /* Next key */
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} DohHashMethods;
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/* List objects */
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typedef struct {
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DOH *(*doh_getitem)(DOH *obj, int index); /* Get item */
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int (*doh_setitem)(DOH *obj, int index, DOH *value); /* Set item */
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int (*doh_delitem)(DOH *obj, int index); /* Delete item */
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int (*doh_insitem)(DOH *obj, int index, DOH *value); /* Insert item */
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DOH *(*doh_firstitem)(DOH *obj); /* Iterators */
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DOH *(*doh_nextitem)(DOH *obj);
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void (*doh_sort)(DOH *obj, int opt); /* Sort */
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} DohListMethods;
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/* File methods */
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typedef struct {
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int (*doh_read)(DOH *obj, void *buffer, int nbytes); /* Read bytes */
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int (*doh_write)(DOH *obj, void *buffer, int nbytes); /* Write bytes */
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int (*doh_putc)(DOH *obj, int ch); /* Put character */
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int (*doh_getc)(DOH *obj); /* Get character */
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int (*doh_ungetc)(DOH *obj, int ch); /* Unget character */
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int (*doh_seek)(DOH *obj, long offset, int whence); /* Seek */
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long (*doh_tell)(DOH *obj); /* Tell */
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int (*doh_close)(DOH *obj); /* Close */
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} DohFileMethods;
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/* String methods */
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typedef struct {
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int (*doh_replace)(DOH *obj, DOH *old, DOH *rep, int flags);
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void (*doh_chop)(DOH *obj);
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} DohStringMethods;
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/* -----------------------------------------------------------------------------
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* DohObjInfo
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* ----------------------------------------------------------------------------- */
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typedef struct DohObjInfo {
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char *objname; /* Object name */
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/* Basic object methods */
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void (*doh_del)(DOH *obj); /* Delete object */
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DOH *(*doh_copy)(DOH *obj); /* Copy and object */
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void (*doh_clear)(DOH *obj); /* Clear an object */
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/* I/O methods */
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DOH *(*doh_str)(DOH *obj); /* Make a full string */
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void *(*doh_data)(DOH *obj); /* Return raw data */
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int (*doh_dump)(DOH *obj, DOH *out); /* Serialize on out */
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/* Length and hash values */
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int (*doh_len)(DOH *obj);
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int (*doh_hashval)(DOH *obj);
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/* Compare */
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int (*doh_cmp)(DOH *obj1, DOH *obj2);
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/* Positional */
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void (*doh_setfile)(DOH *obj, DOHString_or_char *file);
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DOH *(*doh_getfile)(DOH *obj);
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void (*doh_setline)(DOH *obj, int line);
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int (*doh_getline)(DOH *obj);
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DohHashMethods *doh_hash; /* Hash methods */
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DohListMethods *doh_list; /* List methods */
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DohFileMethods *doh_file; /* File methods */
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DohStringMethods *doh_string; /* String methods */
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void *doh_reserved; /* Reserved */
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void *clientdata; /* User data */
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} DohObjInfo;
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typedef struct {
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void *data; /* Data pointer */
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unsigned int type : 4; /* Object type (max 16 -- deal with it) */
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int flag_intern : 1; /* Interned object */
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int flag_marked : 1; /* Mark flag. Used to avoid recursive loops in places */
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int flag_user : 1; /* User flag */
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int flag_reserved : 1; /* Reserved flag */
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int refcount : 24; /* Reference count (max 16 million) */
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} DohBase;
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/* Macros for decrefing and increfing (safe for null objects). */
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#define Decref(a) if (a) ((DohBase *) a)->refcount--
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#define Incref(a) if (a) ((DohBase *) a)->refcount++
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#define Refcount(a) ((DohBase *) a)->refcount
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/* Macros for manipulating objects in a safe manner */
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#define ObjData(a) ((DohBase *)a)->data
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#define ObjSetMark(a,x) ((DohBase *)a)->flag_marked = x
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#define ObjGetMark(a) ((DohBase *)a)->flag_marked
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#define ObjType(a) ((DohBase *)a)->type
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extern DOH *DohObjMalloc(int type, void *data); /* Allocate a DOH object */
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extern void DohObjFree(DOH *ptr); /* Free a DOH object */
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extern void DohRegisterType(int type, DohObjInfo *objinfo);
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#define MAX_DOHTYPE 16
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#define DOHTYPE_STRING 1
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#define DOHTYPE_LIST 2
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#define DOHTYPE_HASH 3
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#define DOHTYPE_VOID 4
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#define DOHTYPE_FILE 5
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#endif /* DOHOBJ_H */
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