mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 08:35:26 +00:00
345 lines
12 KiB
C
345 lines
12 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code, released
|
|
* March 31, 1998.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the
|
|
* terms of the GNU Public License (the "GPL"), in which case the
|
|
* provisions of the GPL are applicable instead of those above.
|
|
* If you wish to allow use of your version of this file only
|
|
* under the terms of the GPL and not to allow others to use your
|
|
* version of this file under the NPL, indicate your decision by
|
|
* deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this
|
|
* file under either the NPL or the GPL.
|
|
*/
|
|
|
|
#ifndef jsobj_h___
|
|
#define jsobj_h___
|
|
/*
|
|
* JS object definitions.
|
|
*
|
|
* A JS object consists of a possibly-shared object descriptor containing
|
|
* ordered property names, called the map; and a dense vector of property
|
|
* values, called slots. The map/slot pointer pair is GC'ed, while the map
|
|
* is reference counted and the slot vector is malloc'ed.
|
|
*/
|
|
#include "jshash.h" /* Added by JSIFY */
|
|
#include "jsprvtd.h"
|
|
#include "jspubtd.h"
|
|
|
|
JS_BEGIN_EXTERN_C
|
|
|
|
struct JSObjectMap {
|
|
jsrefcount nrefs; /* count of all referencing objects */
|
|
JSObjectOps *ops; /* high level object operation vtable */
|
|
uint32 nslots; /* length of obj->slots vector */
|
|
uint32 freeslot; /* index of next free obj->slots element */
|
|
};
|
|
|
|
/* Shorthand macros for frequently-made calls. */
|
|
#if defined JS_THREADSAFE && defined DEBUG
|
|
#define OBJ_LOOKUP_PROPERTY(cx,obj,id,objp,propp) \
|
|
(obj)->map->ops->lookupProperty(cx,obj,id,objp,propp,__FILE__,__LINE__)
|
|
#else
|
|
#define OBJ_LOOKUP_PROPERTY(cx,obj,id,objp,propp) \
|
|
(obj)->map->ops->lookupProperty(cx,obj,id,objp,propp)
|
|
#endif
|
|
#define OBJ_DEFINE_PROPERTY(cx,obj,id,value,getter,setter,attrs,propp) \
|
|
(obj)->map->ops->defineProperty(cx,obj,id,value,getter,setter,attrs,propp)
|
|
#define OBJ_GET_PROPERTY(cx,obj,id,vp) \
|
|
(obj)->map->ops->getProperty(cx,obj,id,vp)
|
|
#define OBJ_SET_PROPERTY(cx,obj,id,vp) \
|
|
(obj)->map->ops->setProperty(cx,obj,id,vp)
|
|
#define OBJ_GET_ATTRIBUTES(cx,obj,id,prop,attrsp) \
|
|
(obj)->map->ops->getAttributes(cx,obj,id,prop,attrsp)
|
|
#define OBJ_SET_ATTRIBUTES(cx,obj,id,prop,attrsp) \
|
|
(obj)->map->ops->setAttributes(cx,obj,id,prop,attrsp)
|
|
#define OBJ_DELETE_PROPERTY(cx,obj,id,rval) \
|
|
(obj)->map->ops->deleteProperty(cx,obj,id,rval)
|
|
#define OBJ_DEFAULT_VALUE(cx,obj,hint,vp) \
|
|
(obj)->map->ops->defaultValue(cx,obj,hint,vp)
|
|
#define OBJ_ENUMERATE(cx,obj,enum_op,statep,idp) \
|
|
(obj)->map->ops->enumerate(cx,obj,enum_op,statep,idp)
|
|
#define OBJ_CHECK_ACCESS(cx,obj,id,mode,vp,attrsp) \
|
|
(obj)->map->ops->checkAccess(cx,obj,id,mode,vp,attrsp)
|
|
|
|
/* These two are time-optimized to avoid stub calls. */
|
|
#define OBJ_THIS_OBJECT(cx,obj) \
|
|
((obj)->map->ops->thisObject \
|
|
? (obj)->map->ops->thisObject(cx,obj) \
|
|
: (obj))
|
|
#define OBJ_DROP_PROPERTY(cx,obj,prop) \
|
|
((obj)->map->ops->dropProperty \
|
|
? (obj)->map->ops->dropProperty(cx,obj,prop) \
|
|
: (void)0)
|
|
|
|
struct JSObject {
|
|
JSObjectMap *map;
|
|
jsval *slots;
|
|
};
|
|
|
|
#define JSSLOT_PROTO 0
|
|
#define JSSLOT_PARENT 1
|
|
#define JSSLOT_CLASS 2
|
|
#define JSSLOT_PRIVATE 3
|
|
#define JSSLOT_START 3
|
|
|
|
#define JSSLOT_FREE(clasp) (((clasp)->flags & JSCLASS_HAS_PRIVATE) \
|
|
? JSSLOT_PRIVATE + 1 \
|
|
: JSSLOT_START)
|
|
|
|
#define JS_INITIAL_NSLOTS 5
|
|
|
|
#ifdef DEBUG
|
|
#define MAP_CHECK_SLOT(map,slot) \
|
|
JS_ASSERT((uint32)slot < JS_MAX((map)->nslots, (map)->freeslot))
|
|
#define OBJ_CHECK_SLOT(obj,slot) \
|
|
MAP_CHECK_SLOT((obj)->map, slot)
|
|
#else
|
|
#define OBJ_CHECK_SLOT(obj,slot) ((void)0)
|
|
#endif
|
|
|
|
/* Fast macros for accessing obj->slots while obj is locked (if thread-safe). */
|
|
#define LOCKED_OBJ_GET_SLOT(obj,slot) \
|
|
(OBJ_CHECK_SLOT(obj, slot), (obj)->slots[slot])
|
|
#define LOCKED_OBJ_SET_SLOT(obj,slot,value) \
|
|
(OBJ_CHECK_SLOT(obj, slot), (obj)->slots[slot] = (value))
|
|
#define LOCKED_OBJ_GET_PROTO(obj) \
|
|
JSVAL_TO_OBJECT(LOCKED_OBJ_GET_SLOT(obj, JSSLOT_PROTO))
|
|
#define LOCKED_OBJ_GET_CLASS(obj) \
|
|
((JSClass *)JSVAL_TO_PRIVATE(LOCKED_OBJ_GET_SLOT(obj, JSSLOT_CLASS)))
|
|
|
|
#ifdef JS_THREADSAFE
|
|
|
|
/* Thread-safe functions and wrapper macros for accessing obj->slots. */
|
|
#define OBJ_GET_SLOT(cx,obj,slot) \
|
|
(OBJ_CHECK_SLOT(obj, slot), js_GetSlotWhileLocked(cx, obj, slot))
|
|
#define OBJ_SET_SLOT(cx,obj,slot,value) \
|
|
(OBJ_CHECK_SLOT(obj, slot), js_SetSlotWhileLocked(cx, obj, slot, value))
|
|
|
|
#else /* !JS_THREADSAFE */
|
|
|
|
#define OBJ_GET_SLOT(cx,obj,slot) LOCKED_OBJ_GET_SLOT(obj,slot)
|
|
#define OBJ_SET_SLOT(cx,obj,slot,value) LOCKED_OBJ_SET_SLOT(obj,slot,value)
|
|
|
|
#endif /* !JS_THREADSAFE */
|
|
|
|
/* Thread-safe proto, parent, and class access macros. */
|
|
#define OBJ_GET_PROTO(cx,obj) \
|
|
JSVAL_TO_OBJECT(OBJ_GET_SLOT(cx, obj, JSSLOT_PROTO))
|
|
#define OBJ_SET_PROTO(cx,obj,proto) \
|
|
OBJ_SET_SLOT(cx, obj, JSSLOT_PROTO, OBJECT_TO_JSVAL(proto))
|
|
|
|
#define OBJ_GET_PARENT(cx,obj) \
|
|
JSVAL_TO_OBJECT(OBJ_GET_SLOT(cx, obj, JSSLOT_PARENT))
|
|
#define OBJ_SET_PARENT(cx,obj,parent) \
|
|
OBJ_SET_SLOT(cx, obj, JSSLOT_PARENT, OBJECT_TO_JSVAL(parent))
|
|
|
|
#define OBJ_GET_CLASS(cx,obj) \
|
|
((JSClass *)JSVAL_TO_PRIVATE(OBJ_GET_SLOT(cx, obj, JSSLOT_CLASS)))
|
|
|
|
/* Test whether a map or object is native. */
|
|
#define MAP_IS_NATIVE(map) \
|
|
((map)->ops == &js_ObjectOps || \
|
|
((map)->ops && (map)->ops->newObjectMap == js_ObjectOps.newObjectMap))
|
|
#define OBJ_IS_NATIVE(obj) MAP_IS_NATIVE((obj)->map)
|
|
|
|
extern JS_FRIEND_DATA(JSObjectOps) js_ObjectOps;
|
|
extern JS_FRIEND_DATA(JSObjectOps) js_WithObjectOps;
|
|
extern JSClass js_ObjectClass;
|
|
extern JSClass js_WithClass;
|
|
|
|
struct JSSharpObjectMap {
|
|
jsrefcount depth;
|
|
jsatomid sharpgen;
|
|
JSHashTable *table;
|
|
};
|
|
|
|
#define SHARP_BIT 1
|
|
#define IS_SHARP(he) ((jsatomid)(he)->value & SHARP_BIT)
|
|
#define MAKE_SHARP(he) ((he)->value = (void*)((jsatomid)(he)->value|SHARP_BIT))
|
|
|
|
extern JSHashEntry *
|
|
js_EnterSharpObject(JSContext *cx, JSObject *obj, JSIdArray **idap,
|
|
jschar **sp);
|
|
|
|
extern void
|
|
js_LeaveSharpObject(JSContext *cx, JSIdArray **idap);
|
|
|
|
extern JSBool
|
|
js_obj_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
|
|
jsval *rval);
|
|
|
|
extern JSBool
|
|
js_obj_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
|
|
jsval *rval);
|
|
|
|
extern JSObject *
|
|
js_InitObjectClass(JSContext *cx, JSObject *obj);
|
|
|
|
extern void
|
|
js_InitObjectMap(JSObjectMap *map, jsrefcount nrefs, JSObjectOps *ops,
|
|
JSClass *clasp);
|
|
|
|
extern JSObjectMap *
|
|
js_NewObjectMap(JSContext *cx, jsrefcount nrefs, JSObjectOps *ops,
|
|
JSClass *clasp, JSObject *obj);
|
|
|
|
extern void
|
|
js_DestroyObjectMap(JSContext *cx, JSObjectMap *map);
|
|
|
|
extern JSObjectMap *
|
|
js_HoldObjectMap(JSContext *cx, JSObjectMap *map);
|
|
|
|
extern JSObjectMap *
|
|
js_DropObjectMap(JSContext *cx, JSObjectMap *map, JSObject *obj);
|
|
|
|
extern JSObject *
|
|
js_NewObject(JSContext *cx, JSClass *clasp, JSObject *proto, JSObject *parent);
|
|
|
|
extern JSObject *
|
|
js_ConstructObject(JSContext *cx, JSClass *clasp, JSObject *proto,
|
|
JSObject *parent);
|
|
|
|
extern void
|
|
js_FinalizeObject(JSContext *cx, JSObject *obj);
|
|
|
|
extern JSBool
|
|
js_AllocSlot(JSContext *cx, JSObject *obj, uint32 *slotp);
|
|
|
|
extern void
|
|
js_FreeSlot(JSContext *cx, JSObject *obj, uint32 slot);
|
|
|
|
/*
|
|
* On error, return false. On success, if propp is non-null, return true with
|
|
* obj locked and with a held property in *propp; if propp is null, return true
|
|
* but release obj's lock first. Therefore all callers who pass non-null propp
|
|
* result parameters must later call OBJ_DROP_PROPERTY(cx, obj, *propp) both to
|
|
* drop the held property, and to release the lock on obj.
|
|
*/
|
|
extern JSBool
|
|
js_DefineProperty(JSContext *cx, JSObject *obj, jsid id, jsval value,
|
|
JSPropertyOp getter, JSPropertyOp setter, uintN attrs,
|
|
JSProperty **propp);
|
|
|
|
/*
|
|
* Unlike js_DefineProperty, propp must be non-null. On success, and if id was
|
|
* found, return true with *objp non-null and locked, and with a held property
|
|
* stored in *propp. If successful but id was not found, return true with both
|
|
* *objp and *propp null. Therefore all callers who receive a non-null *propp
|
|
* must later call OBJ_DROP_PROPERTY(cx, *objp, *propp).
|
|
*/
|
|
#if defined JS_THREADSAFE && defined DEBUG
|
|
extern JS_FRIEND_API(JSBool)
|
|
_js_LookupProperty(JSContext *cx, JSObject *obj, jsid id, JSObject **objp,
|
|
JSProperty **propp, const char *file, uintN line);
|
|
|
|
#define js_LookupProperty(cx,obj,id,objp,propp) \
|
|
_js_LookupProperty(cx,obj,id,objp,propp,__FILE__,__LINE__)
|
|
#else
|
|
extern JS_FRIEND_API(JSBool)
|
|
js_LookupProperty(JSContext *cx, JSObject *obj, jsid id, JSObject **objp,
|
|
JSProperty **propp);
|
|
#endif
|
|
|
|
extern JS_FRIEND_API(JSBool)
|
|
js_FindProperty(JSContext *cx, jsid id, JSObject **objp, JSObject **pobjp,
|
|
JSProperty **propp);
|
|
|
|
extern JSBool
|
|
js_FindVariable(JSContext *cx, jsid id, JSObject **objp, JSObject **pobjp,
|
|
JSProperty **propp);
|
|
|
|
extern JSObject *
|
|
js_FindVariableScope(JSContext *cx, JSFunction **funp);
|
|
|
|
extern JSBool
|
|
js_GetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
|
|
|
|
extern JSBool
|
|
js_SetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
|
|
|
|
extern JSBool
|
|
js_GetAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
|
|
uintN *attrsp);
|
|
|
|
extern JSBool
|
|
js_SetAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
|
|
uintN *attrsp);
|
|
|
|
extern JSBool
|
|
js_DeleteProperty(JSContext *cx, JSObject *obj, jsid id, jsval *rval);
|
|
|
|
extern JSBool
|
|
js_DefaultValue(JSContext *cx, JSObject *obj, JSType hint, jsval *vp);
|
|
|
|
extern JSBool
|
|
js_Enumerate(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
|
|
jsval *statep, jsid *idp);
|
|
|
|
extern JSBool
|
|
js_CheckAccess(JSContext *cx, JSObject *obj, jsid id, JSAccessMode mode,
|
|
jsval *vp, uintN *attrsp);
|
|
|
|
extern JSBool
|
|
js_Call(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
|
|
|
|
extern JSBool
|
|
js_Construct(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
|
|
jsval *rval);
|
|
|
|
extern JSBool
|
|
js_HasInstance(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
|
|
|
|
extern JSBool
|
|
js_IsDelegate(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
|
|
|
|
extern JSBool
|
|
js_GetClassPrototype(JSContext *cx, const char *name, JSObject **protop);
|
|
|
|
extern JSBool
|
|
js_SetClassPrototype(JSContext *cx, JSObject *ctor, JSObject *proto,
|
|
uintN attrs);
|
|
|
|
extern JSBool
|
|
js_ValueToObject(JSContext *cx, jsval v, JSObject **objp);
|
|
|
|
extern JSObject *
|
|
js_ValueToNonNullObject(JSContext *cx, jsval v);
|
|
|
|
extern JSBool
|
|
js_TryValueOf(JSContext *cx, JSObject *obj, JSType type, jsval *rval);
|
|
|
|
extern JSBool
|
|
js_TryMethod(JSContext *cx, JSObject *obj, JSAtom *atom,
|
|
uintN argc, jsval *argv, jsval *rval);
|
|
|
|
extern JSBool
|
|
js_XDRObject(JSXDRState *xdr, JSObject **objp);
|
|
|
|
extern JSIdArray *
|
|
js_NewIdArray(JSContext *cx, jsint length);
|
|
|
|
JS_END_EXTERN_C
|
|
|
|
#endif /* jsobj_h___ */
|