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Diffstat (limited to 'tools/node_modules/expresso/deps/jscoverage/js/jsobj.h')
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diff --git a/tools/node_modules/expresso/deps/jscoverage/js/jsobj.h b/tools/node_modules/expresso/deps/jscoverage/js/jsobj.h new file mode 100644 index 0000000..59a354f --- /dev/null +++ b/tools/node_modules/expresso/deps/jscoverage/js/jsobj.h @@ -0,0 +1,735 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * vim: set ts=8 sw=4 et tw=78: + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla 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/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or 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 the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#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 freeslot; /* index of next free slot in object */ +}; + +/* Shorthand macros for frequently-made calls. */ +#define OBJ_LOOKUP_PROPERTY(cx,obj,id,objp,propp) \ + (obj)->map->ops->lookupProperty(cx,obj,id,objp,propp) +#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 four 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) +#define OBJ_GET_REQUIRED_SLOT(cx,obj,slot) \ + ((obj)->map->ops->getRequiredSlot \ + ? (obj)->map->ops->getRequiredSlot(cx, obj, slot) \ + : JSVAL_VOID) +#define OBJ_SET_REQUIRED_SLOT(cx,obj,slot,v) \ + ((obj)->map->ops->setRequiredSlot \ + ? (obj)->map->ops->setRequiredSlot(cx, obj, slot, v) \ + : JS_TRUE) + +#define OBJ_TO_INNER_OBJECT(cx,obj) \ + JS_BEGIN_MACRO \ + JSClass *clasp_ = OBJ_GET_CLASS(cx, obj); \ + if (clasp_->flags & JSCLASS_IS_EXTENDED) { \ + JSExtendedClass *xclasp_ = (JSExtendedClass*)clasp_; \ + if (xclasp_->innerObject) \ + obj = xclasp_->innerObject(cx, obj); \ + } \ + JS_END_MACRO + +#define OBJ_TO_OUTER_OBJECT(cx,obj) \ + JS_BEGIN_MACRO \ + JSClass *clasp_ = OBJ_GET_CLASS(cx, obj); \ + if (clasp_->flags & JSCLASS_IS_EXTENDED) { \ + JSExtendedClass *xclasp_ = (JSExtendedClass*)clasp_; \ + if (xclasp_->outerObject) \ + obj = xclasp_->outerObject(cx, obj); \ + } \ + JS_END_MACRO + +#define JS_INITIAL_NSLOTS 5 + +/* + * When JSObject.dslots is not null, JSObject.dslots[-1] records the number of + * available slots. + */ +struct JSObject { + JSObjectMap *map; + jsuword classword; + jsval fslots[JS_INITIAL_NSLOTS]; + jsval *dslots; /* dynamically allocated slots */ +}; + +#define JSSLOT_PROTO 0 +#define JSSLOT_PARENT 1 +#define JSSLOT_PRIVATE 2 +#define JSSLOT_START(clasp) (((clasp)->flags & JSCLASS_HAS_PRIVATE) \ + ? JSSLOT_PRIVATE + 1 \ + : JSSLOT_PARENT + 1) + +#define JSSLOT_FREE(clasp) (JSSLOT_START(clasp) \ + + JSCLASS_RESERVED_SLOTS(clasp)) + +/* + * STOBJ prefix means Single Threaded Object. Use the following fast macros to + * directly manipulate slots in obj when only one thread can access obj and + * when obj->map->freeslot can be inconsistent with slots. + */ + +#define STOBJ_NSLOTS(obj) \ + ((obj)->dslots ? (uint32)(obj)->dslots[-1] : (uint32)JS_INITIAL_NSLOTS) + +#define STOBJ_GET_SLOT(obj,slot) \ + ((slot) < JS_INITIAL_NSLOTS \ + ? (obj)->fslots[(slot)] \ + : (JS_ASSERT((slot) < (uint32)(obj)->dslots[-1]), \ + (obj)->dslots[(slot) - JS_INITIAL_NSLOTS])) + +#define STOBJ_SET_SLOT(obj,slot,value) \ + ((slot) < JS_INITIAL_NSLOTS \ + ? (obj)->fslots[(slot)] = (value) \ + : (JS_ASSERT((slot) < (uint32)(obj)->dslots[-1]), \ + (obj)->dslots[(slot) - JS_INITIAL_NSLOTS] = (value))) + +#define STOBJ_GET_PROTO(obj) \ + JSVAL_TO_OBJECT((obj)->fslots[JSSLOT_PROTO]) +#define STOBJ_SET_PROTO(obj,proto) \ + (void)(STOBJ_NULLSAFE_SET_DELEGATE(proto), \ + (obj)->fslots[JSSLOT_PROTO] = OBJECT_TO_JSVAL(proto)) +#define STOBJ_CLEAR_PROTO(obj) \ + ((obj)->fslots[JSSLOT_PROTO] = JSVAL_NULL) + +#define STOBJ_GET_PARENT(obj) \ + JSVAL_TO_OBJECT((obj)->fslots[JSSLOT_PARENT]) +#define STOBJ_SET_PARENT(obj,parent) \ + (void)(STOBJ_NULLSAFE_SET_DELEGATE(parent), \ + (obj)->fslots[JSSLOT_PARENT] = OBJECT_TO_JSVAL(parent)) +#define STOBJ_CLEAR_PARENT(obj) \ + ((obj)->fslots[JSSLOT_PARENT] = JSVAL_NULL) + +/* + * We use JSObject.classword to store both JSClass* and the delegate and system + * flags in the two least significant bits. We do *not* synchronize updates of + * obj->classword -- API clients must take care. + */ +#define STOBJ_GET_CLASS(obj) ((JSClass *)((obj)->classword & ~3)) +#define STOBJ_IS_DELEGATE(obj) (((obj)->classword & 1) != 0) +#define STOBJ_SET_DELEGATE(obj) ((obj)->classword |= 1) +#define STOBJ_NULLSAFE_SET_DELEGATE(obj) \ + (!(obj) || STOBJ_SET_DELEGATE((JSObject*)obj)) +#define STOBJ_IS_SYSTEM(obj) (((obj)->classword & 2) != 0) +#define STOBJ_SET_SYSTEM(obj) ((obj)->classword |= 2) + +#define STOBJ_GET_PRIVATE(obj) \ + (JS_ASSERT(JSVAL_IS_INT(STOBJ_GET_SLOT(obj, JSSLOT_PRIVATE))), \ + JSVAL_TO_PRIVATE(STOBJ_GET_SLOT(obj, JSSLOT_PRIVATE))) + +#define OBJ_CHECK_SLOT(obj,slot) \ + JS_ASSERT(slot < (obj)->map->freeslot) + +#define LOCKED_OBJ_GET_SLOT(obj,slot) \ + (OBJ_CHECK_SLOT(obj, slot), STOBJ_GET_SLOT(obj, slot)) +#define LOCKED_OBJ_SET_SLOT(obj,slot,value) \ + (OBJ_CHECK_SLOT(obj, slot), STOBJ_SET_SLOT(obj, slot, value)) + +/* + * NB: Don't call LOCKED_OBJ_SET_SLOT or STOBJ_SET_SLOT for a write to a slot + * that may contain a function reference already, or where the new value is a + * function ref, and the object's scope may be branded with a property cache + * structural type capability that distinguishes versions of the object with + * and without the function property. Instead use LOCKED_OBJ_WRITE_BARRIER or + * a fast inline equivalent (JSOP_SETNAME/JSOP_SETPROP cases in jsinterp.c). + */ +#define LOCKED_OBJ_WRITE_BARRIER(cx,obj,slot,newval) \ + JS_BEGIN_MACRO \ + JSScope *scope_ = OBJ_SCOPE(obj); \ + JS_ASSERT(scope_->object == (obj)); \ + GC_WRITE_BARRIER(cx, scope_, LOCKED_OBJ_GET_SLOT(obj, slot), newval); \ + LOCKED_OBJ_SET_SLOT(obj, slot, newval); \ + JS_END_MACRO + +#define LOCKED_OBJ_GET_PROTO(obj) \ + (OBJ_CHECK_SLOT(obj, JSSLOT_PROTO), STOBJ_GET_PROTO(obj)) +#define LOCKED_OBJ_SET_PROTO(obj,proto) \ + (OBJ_CHECK_SLOT(obj, JSSLOT_PROTO), STOBJ_SET_PROTO(obj, proto)) + +#define LOCKED_OBJ_GET_PARENT(obj) \ + (OBJ_CHECK_SLOT(obj, JSSLOT_PARENT), STOBJ_GET_PARENT(obj)) +#define LOCKED_OBJ_SET_PARENT(obj,parent) \ + (OBJ_CHECK_SLOT(obj, JSSLOT_PARENT), STOBJ_SET_PARENT(obj, parent)) + +#define LOCKED_OBJ_GET_CLASS(obj) \ + STOBJ_GET_CLASS(obj) + +#define LOCKED_OBJ_GET_PRIVATE(obj) \ + (OBJ_CHECK_SLOT(obj, JSSLOT_PRIVATE), STOBJ_GET_PRIVATE(obj)) + +#ifdef JS_THREADSAFE + +/* Thread-safe functions and wrapper macros for accessing slots in obj. */ +#define OBJ_GET_SLOT(cx,obj,slot) \ + (OBJ_CHECK_SLOT(obj, slot), \ + (OBJ_IS_NATIVE(obj) && OBJ_SCOPE(obj)->title.ownercx == cx) \ + ? LOCKED_OBJ_GET_SLOT(obj, slot) \ + : js_GetSlotThreadSafe(cx, obj, slot)) + +#define OBJ_SET_SLOT(cx,obj,slot,value) \ + JS_BEGIN_MACRO \ + OBJ_CHECK_SLOT(obj, slot); \ + if (OBJ_IS_NATIVE(obj) && OBJ_SCOPE(obj)->title.ownercx == cx) \ + LOCKED_OBJ_WRITE_BARRIER(cx, obj, slot, value); \ + else \ + js_SetSlotThreadSafe(cx, obj, slot, value); \ + JS_END_MACRO + +/* + * If thread-safe, define an OBJ_GET_SLOT wrapper that bypasses, for a native + * object, the lock-free "fast path" test of (OBJ_SCOPE(obj)->ownercx == cx), + * to avoid needlessly switching from lock-free to lock-full scope when doing + * GC on a different context from the last one to own the scope. The caller + * in this case is probably a JSClass.mark function, e.g., fun_mark, or maybe + * a finalizer. + * + * The GC runs only when all threads except the one on which the GC is active + * are suspended at GC-safe points, so calling STOBJ_GET_SLOT from the GC's + * thread is safe when rt->gcRunning is set. See jsgc.c for details. + */ +#define THREAD_IS_RUNNING_GC(rt, thread) \ + ((rt)->gcRunning && (rt)->gcThread == (thread)) + +#define CX_THREAD_IS_RUNNING_GC(cx) \ + THREAD_IS_RUNNING_GC((cx)->runtime, (cx)->thread) + +#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_WRITE_BARRIER(cx,obj,slot, \ + value) + +#endif /* !JS_THREADSAFE */ + +/* Thread-safe delegate, proto, parent, and class access macros. */ +#define OBJ_IS_DELEGATE(cx,obj) STOBJ_IS_DELEGATE(obj) +#define OBJ_SET_DELEGATE(cx,obj) STOBJ_SET_DELEGATE(obj) + +#define OBJ_GET_PROTO(cx,obj) STOBJ_GET_PROTO(obj) +#define OBJ_SET_PROTO(cx,obj,proto) STOBJ_SET_PROTO(obj, proto) +#define OBJ_CLEAR_PROTO(cx,obj) STOBJ_CLEAR_PROTO(obj) + +#define OBJ_GET_PARENT(cx,obj) STOBJ_GET_PARENT(obj) +#define OBJ_SET_PARENT(cx,obj,parent) STOBJ_SET_PARENT(obj, parent) +#define OBJ_CLEAR_PARENT(cx,obj) STOBJ_CLEAR_PARENT(obj) + +/* + * Class is invariant and comes from the fixed clasp member. Thus no locking + * is necessary to read it. Same for the private slot. + */ +#define OBJ_GET_CLASS(cx,obj) STOBJ_GET_CLASS(obj) +#define OBJ_GET_PRIVATE(cx,obj) STOBJ_GET_PRIVATE(obj) + +/* Test whether a map or object is native. */ +#define MAP_IS_NATIVE(map) \ + JS_LIKELY((map)->ops == &js_ObjectOps || \ + (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; +extern JSClass js_BlockClass; + +/* + * Block scope object macros. The slots reserved by js_BlockClass are: + * + * JSSLOT_PRIVATE JSStackFrame * active frame pointer or null + * JSSLOT_BLOCK_DEPTH int depth of block slots in frame + * + * After JSSLOT_BLOCK_DEPTH come one or more slots for the block locals. + * + * A With object is like a Block object, in that both have one reserved slot + * telling the stack depth of the relevant slots (the slot whose value is the + * object named in the with statement, the slots containing the block's local + * variables); and both have a private slot referring to the JSStackFrame in + * whose activation they were created (or null if the with or block object + * outlives the frame). + */ +#define JSSLOT_BLOCK_DEPTH (JSSLOT_PRIVATE + 1) + +#define OBJ_IS_CLONED_BLOCK(obj) \ + (OBJ_SCOPE(obj)->object != (obj)) +#define OBJ_BLOCK_COUNT(cx,obj) \ + (OBJ_SCOPE(obj)->entryCount) +#define OBJ_BLOCK_DEPTH(cx,obj) \ + JSVAL_TO_INT(STOBJ_GET_SLOT(obj, JSSLOT_BLOCK_DEPTH)) +#define OBJ_SET_BLOCK_DEPTH(cx,obj,depth) \ + STOBJ_SET_SLOT(obj, JSSLOT_BLOCK_DEPTH, INT_TO_JSVAL(depth)) + +/* + * To make sure this slot is well-defined, always call js_NewWithObject to + * create a With object, don't call js_NewObject directly. When creating a + * With object that does not correspond to a stack slot, pass -1 for depth. + * + * When popping the stack across this object's "with" statement, client code + * must call JS_SetPrivate(cx, withobj, NULL). + */ +extern JSObject * +js_NewWithObject(JSContext *cx, JSObject *proto, JSObject *parent, jsint depth); + +/* + * Create a new block scope object not linked to any proto or parent object. + * Blocks are created by the compiler to reify let blocks and comprehensions. + * Only when dynamic scope is captured do they need to be cloned and spliced + * into an active scope chain. + */ +extern JSObject * +js_NewBlockObject(JSContext *cx); + +extern JSObject * +js_CloneBlockObject(JSContext *cx, JSObject *proto, JSObject *parent, + JSStackFrame *fp); + +extern JSBool +js_PutBlockObject(JSContext *cx, JSBool normalUnwind); + +struct JSSharpObjectMap { + jsrefcount depth; + jsatomid sharpgen; + JSHashTable *table; +}; + +#define SHARP_BIT ((jsatomid) 1) +#define BUSY_BIT ((jsatomid) 2) +#define SHARP_ID_SHIFT 2 +#define IS_SHARP(he) (JS_PTR_TO_UINT32((he)->value) & SHARP_BIT) +#define MAKE_SHARP(he) ((he)->value = JS_UINT32_TO_PTR(JS_PTR_TO_UINT32((he)->value)|SHARP_BIT)) +#define IS_BUSY(he) (JS_PTR_TO_UINT32((he)->value) & BUSY_BIT) +#define MAKE_BUSY(he) ((he)->value = JS_UINT32_TO_PTR(JS_PTR_TO_UINT32((he)->value)|BUSY_BIT)) +#define CLEAR_BUSY(he) ((he)->value = JS_UINT32_TO_PTR(JS_PTR_TO_UINT32((he)->value)&~BUSY_BIT)) + +extern JSHashEntry * +js_EnterSharpObject(JSContext *cx, JSObject *obj, JSIdArray **idap, + jschar **sp); + +extern void +js_LeaveSharpObject(JSContext *cx, JSIdArray **idap); + +/* + * Mark objects stored in map if GC happens between js_EnterSharpObject + * and js_LeaveSharpObject. GC calls this when map->depth > 0. + */ +extern void +js_TraceSharpMap(JSTracer *trc, JSSharpObjectMap *map); + +extern JSBool +js_HasOwnPropertyHelper(JSContext *cx, JSLookupPropOp lookup, uintN argc, + jsval *vp); + +extern JSBool +js_HasOwnProperty(JSContext *cx, JSLookupPropOp lookup, JSObject *obj, jsid id, + jsval *vp); + +extern JSBool +js_PropertyIsEnumerable(JSContext *cx, JSObject *obj, jsid id, jsval *vp); + +extern JSObject * +js_InitBlockClass(JSContext *cx, JSObject* obj); + +extern JSObject * +js_InitEval(JSContext *cx, JSObject *obj); + +extern JSObject * +js_InitObjectClass(JSContext *cx, JSObject *obj); + +/* Select Object.prototype method names shared between jsapi.c and jsobj.c. */ +extern const char js_watch_str[]; +extern const char js_unwatch_str[]; +extern const char js_hasOwnProperty_str[]; +extern const char js_isPrototypeOf_str[]; +extern const char js_propertyIsEnumerable_str[]; +extern const char js_defineGetter_str[]; +extern const char js_defineSetter_str[]; +extern const char js_lookupGetter_str[]; +extern const char js_lookupSetter_str[]; + +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 JSBool +js_GetClassId(JSContext *cx, JSClass *clasp, jsid *idp); + +extern JSObject * +js_NewObject(JSContext *cx, JSClass *clasp, JSObject *proto, JSObject *parent, + uintN objectSize); + +/* + * See jsapi.h, JS_NewObjectWithGivenProto. + * + * objectSize is either the explicit size for the allocated object or 0 + * indicating to use the default size based on object's class. + */ +extern JSObject * +js_NewObjectWithGivenProto(JSContext *cx, JSClass *clasp, JSObject *proto, + JSObject *parent, uintN objectSize); + +/* + * Fast access to immutable standard objects (constructors and prototypes). + */ +extern JSBool +js_GetClassObject(JSContext *cx, JSObject *obj, JSProtoKey key, + JSObject **objp); + +extern JSBool +js_SetClassObject(JSContext *cx, JSObject *obj, JSProtoKey key, JSObject *cobj); + +extern JSBool +js_FindClassObject(JSContext *cx, JSObject *start, jsid id, jsval *vp); + +extern JSObject * +js_ConstructObject(JSContext *cx, JSClass *clasp, JSObject *proto, + JSObject *parent, uintN argc, jsval *argv); + +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); + +/* JSVAL_INT_MAX as a string */ +#define JSVAL_INT_MAX_STRING "1073741823" + +#define CHECK_FOR_STRING_INDEX(id) \ + JS_BEGIN_MACRO \ + if (JSID_IS_ATOM(id)) { \ + JSAtom *atom_ = JSID_TO_ATOM(id); \ + JSString *str_ = ATOM_TO_STRING(atom_); \ + const jschar *s_ = JSFLATSTR_CHARS(str_); \ + JSBool negative_ = (*s_ == '-'); \ + if (negative_) s_++; \ + if (JS7_ISDEC(*s_)) { \ + size_t n_ = JSFLATSTR_LENGTH(str_) - negative_; \ + if (n_ <= sizeof(JSVAL_INT_MAX_STRING) - 1) \ + id = js_CheckForStringIndex(id, s_, s_ + n_, negative_); \ + } \ + } \ + JS_END_MACRO + +extern jsid +js_CheckForStringIndex(jsid id, const jschar *cp, const jschar *end, + JSBool negative); + +/* + * Find or create a property named by id in obj's scope, with the given getter + * and setter, slot, attributes, and other members. + */ +extern JSScopeProperty * +js_AddNativeProperty(JSContext *cx, JSObject *obj, jsid id, + JSPropertyOp getter, JSPropertyOp setter, uint32 slot, + uintN attrs, uintN flags, intN shortid); + +/* + * Change sprop to have the given attrs, getter, and setter in scope, morphing + * it into a potentially new JSScopeProperty. Return a pointer to the changed + * or identical property. + */ +extern JSScopeProperty * +js_ChangeNativePropertyAttrs(JSContext *cx, JSObject *obj, + JSScopeProperty *sprop, uintN attrs, uintN mask, + JSPropertyOp getter, JSPropertyOp setter); + +/* + * 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); + +extern JSBool +js_DefineNativeProperty(JSContext *cx, JSObject *obj, jsid id, jsval value, + JSPropertyOp getter, JSPropertyOp setter, uintN attrs, + uintN flags, intN shortid, 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). + */ +extern JS_FRIEND_API(JSBool) +js_LookupProperty(JSContext *cx, JSObject *obj, jsid id, JSObject **objp, + JSProperty **propp); + +/* + * Specialized subroutine that allows caller to preset JSRESOLVE_* flags and + * returns the index along the prototype chain in which *propp was found, or + * the last index if not found, or -1 on error. + */ +extern int +js_LookupPropertyWithFlags(JSContext *cx, JSObject *obj, jsid id, uintN flags, + JSObject **objp, JSProperty **propp); + +extern int +js_FindPropertyHelper(JSContext *cx, jsid id, JSObject **objp, + JSObject **pobjp, JSProperty **propp, + JSPropCacheEntry **entryp); + +/* + * Return the index along the scope chain in which id was found, or the last + * index if not found, or -1 on error. + */ +extern JS_FRIEND_API(JSBool) +js_FindProperty(JSContext *cx, jsid id, JSObject **objp, JSObject **pobjp, + JSProperty **propp); + +extern JSObject * +js_FindIdentifierBase(JSContext *cx, jsid id, JSPropCacheEntry *entry); + +extern JSObject * +js_FindVariableScope(JSContext *cx, JSFunction **funp); + +/* + * NB: js_NativeGet and js_NativeSet are called with the scope containing sprop + * (pobj's scope for Get, obj's for Set) locked, and on successful return, that + * scope is again locked. But on failure, both functions return false with the + * scope containing sprop unlocked. + */ +extern JSBool +js_NativeGet(JSContext *cx, JSObject *obj, JSObject *pobj, + JSScopeProperty *sprop, jsval *vp); + +extern JSBool +js_NativeSet(JSContext *cx, JSObject *obj, JSScopeProperty *sprop, jsval *vp); + +extern JSBool +js_GetPropertyHelper(JSContext *cx, JSObject *obj, jsid id, jsval *vp, + JSPropCacheEntry **entryp); + +extern JSBool +js_GetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp); + +extern JSBool +js_SetPropertyHelper(JSContext *cx, JSObject *obj, jsid id, jsval *vp, + JSPropCacheEntry **entryp); + +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 void +js_TraceNativeEnumerators(JSTracer *trc); + +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_SetProtoOrParent(JSContext *cx, JSObject *obj, uint32 slot, JSObject *pobj); + +extern JSBool +js_IsDelegate(JSContext *cx, JSObject *obj, jsval v, JSBool *bp); + +extern JSBool +js_GetClassPrototype(JSContext *cx, JSObject *scope, jsid id, + JSObject **protop); + +extern JSBool +js_SetClassPrototype(JSContext *cx, JSObject *ctor, JSObject *proto, + uintN attrs); + +/* + * Wrap boolean, number or string as Boolean, Number or String object. + * *vp must not be an object, null or undefined. + */ +extern JSBool +js_PrimitiveToObject(JSContext *cx, jsval *vp); + +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 void +js_TraceObject(JSTracer *trc, JSObject *obj); + +extern void +js_PrintObjectSlotName(JSTracer *trc, char *buf, size_t bufsize); + +extern void +js_Clear(JSContext *cx, JSObject *obj); + +extern jsval +js_GetRequiredSlot(JSContext *cx, JSObject *obj, uint32 slot); + +extern JSBool +js_SetRequiredSlot(JSContext *cx, JSObject *obj, uint32 slot, jsval v); + +/* + * Precondition: obj must be locked. + */ +extern JSBool +js_ReallocSlots(JSContext *cx, JSObject *obj, uint32 nslots, + JSBool exactAllocation); + +extern JSObject * +js_CheckScopeChainValidity(JSContext *cx, JSObject *scopeobj, const char *caller); + +extern JSBool +js_CheckPrincipalsAccess(JSContext *cx, JSObject *scopeobj, + JSPrincipals *principals, JSAtom *caller); + +/* Infallible -- returns its argument if there is no wrapped object. */ +extern JSObject * +js_GetWrappedObject(JSContext *cx, JSObject *obj); + +/* NB: Infallible. */ +extern const char * +js_ComputeFilename(JSContext *cx, JSStackFrame *caller, + JSPrincipals *principals, uintN *linenop); + +#ifdef DEBUG +JS_FRIEND_API(void) js_DumpChars(const jschar *s, size_t n); +JS_FRIEND_API(void) js_DumpString(JSString *str); +JS_FRIEND_API(void) js_DumpAtom(JSAtom *atom); +JS_FRIEND_API(void) js_DumpValue(jsval val); +JS_FRIEND_API(void) js_DumpId(jsid id); +JS_FRIEND_API(void) js_DumpObject(JSObject *obj); +#endif + +JS_END_EXTERN_C + +#endif /* jsobj_h___ */ |