michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "jsfriendapi.h"
michael@0: 
michael@0: #include "mozilla/PodOperations.h"
michael@0: 
michael@0: #include <stdint.h>
michael@0: 
michael@0: #include "jscntxt.h"
michael@0: #include "jscompartment.h"
michael@0: #include "jsgc.h"
michael@0: #include "jsobj.h"
michael@0: #include "jsproxy.h"
michael@0: #include "jswatchpoint.h"
michael@0: #include "jsweakmap.h"
michael@0: #include "jswrapper.h"
michael@0: #include "prmjtime.h"
michael@0: 
michael@0: #include "builtin/TestingFunctions.h"
michael@0: #include "vm/WrapperObject.h"
michael@0: 
michael@0: #include "jsobjinlines.h"
michael@0: 
michael@0: #include "vm/ScopeObject-inl.h"
michael@0: 
michael@0: using namespace js;
michael@0: using namespace JS;
michael@0: 
michael@0: using mozilla::PodArrayZero;
michael@0: 
michael@0: // Required by PerThreadDataFriendFields::getMainThread()
michael@0: JS_STATIC_ASSERT(offsetof(JSRuntime, mainThread) ==
michael@0:                  PerThreadDataFriendFields::RuntimeMainThreadOffset);
michael@0: 
michael@0: PerThreadDataFriendFields::PerThreadDataFriendFields()
michael@0: {
michael@0:     PodArrayZero(nativeStackLimit);
michael@0: #if JS_STACK_GROWTH_DIRECTION > 0
michael@0:     for (int i=0; i<StackKindCount; i++)
michael@0:         nativeStackLimit[i] = UINTPTR_MAX;
michael@0: #endif
michael@0: #if defined(JSGC_USE_EXACT_ROOTING)
michael@0:     PodArrayZero(thingGCRooters);
michael@0: #endif
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetSourceHook(JSRuntime *rt, SourceHook *hook)
michael@0: {
michael@0:     rt->sourceHook = hook;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(SourceHook *)
michael@0: js::ForgetSourceHook(JSRuntime *rt)
michael@0: {
michael@0:     return rt->sourceHook.forget();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS_SetGrayGCRootsTracer(JSRuntime *rt, JSTraceDataOp traceOp, void *data)
michael@0: {
michael@0:     rt->gcGrayRootTracer.op = traceOp;
michael@0:     rt->gcGrayRootTracer.data = data;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSString *)
michael@0: JS_GetAnonymousString(JSRuntime *rt)
michael@0: {
michael@0:     JS_ASSERT(rt->hasContexts());
michael@0:     return rt->commonNames->anonymous;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS_SetIsWorkerRuntime(JSRuntime *rt)
michael@0: {
michael@0:     rt->setIsWorkerRuntime();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: JS_FindCompilationScope(JSContext *cx, HandleObject objArg)
michael@0: {
michael@0:     RootedObject obj(cx, objArg);
michael@0: 
michael@0:     /*
michael@0:      * We unwrap wrappers here. This is a little weird, but it's what's being
michael@0:      * asked of us.
michael@0:      */
michael@0:     if (obj->is<WrapperObject>())
michael@0:         obj = UncheckedUnwrap(obj);
michael@0: 
michael@0:     /*
michael@0:      * Innerize the target_obj so that we compile in the correct (inner)
michael@0:      * scope.
michael@0:      */
michael@0:     if (JSObjectOp op = obj->getClass()->ext.innerObject)
michael@0:         obj = op(cx, obj);
michael@0:     return obj;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSFunction *)
michael@0: JS_GetObjectFunction(JSObject *obj)
michael@0: {
michael@0:     if (obj->is<JSFunction>())
michael@0:         return &obj->as<JSFunction>();
michael@0:     return nullptr;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS_SplicePrototype(JSContext *cx, HandleObject obj, HandleObject proto)
michael@0: {
michael@0:     /*
michael@0:      * Change the prototype of an object which hasn't been used anywhere
michael@0:      * and does not share its type with another object. Unlike JS_SetPrototype,
michael@0:      * does not nuke type information for the object.
michael@0:      */
michael@0:     CHECK_REQUEST(cx);
michael@0: 
michael@0:     if (!obj->hasSingletonType()) {
michael@0:         /*
michael@0:          * We can see non-singleton objects when trying to splice prototypes
michael@0:          * due to mutable __proto__ (ugh).
michael@0:          */
michael@0:         return JS_SetPrototype(cx, obj, proto);
michael@0:     }
michael@0: 
michael@0:     Rooted<TaggedProto> tagged(cx, TaggedProto(proto));
michael@0:     return obj->splicePrototype(cx, obj->getClass(), tagged);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: JS_NewObjectWithUniqueType(JSContext *cx, const JSClass *clasp, HandleObject proto,
michael@0:                            HandleObject parent)
michael@0: {
michael@0:     /*
michael@0:      * Create our object with a null proto and then splice in the correct proto
michael@0:      * after we setSingletonType, so that we don't pollute the default
michael@0:      * TypeObject attached to our proto with information about our object, since
michael@0:      * we're not going to be using that TypeObject anyway.
michael@0:      */
michael@0:     RootedObject obj(cx, NewObjectWithGivenProto(cx, (const js::Class *)clasp, nullptr,
michael@0:                                                  parent, SingletonObject));
michael@0:     if (!obj)
michael@0:         return nullptr;
michael@0:     if (!JS_SplicePrototype(cx, obj, proto))
michael@0:         return nullptr;
michael@0:     return obj;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::PrepareZoneForGC(Zone *zone)
michael@0: {
michael@0:     zone->scheduleGC();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::PrepareForFullGC(JSRuntime *rt)
michael@0: {
michael@0:     for (ZonesIter zone(rt, WithAtoms); !zone.done(); zone.next())
michael@0:         zone->scheduleGC();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::PrepareForIncrementalGC(JSRuntime *rt)
michael@0: {
michael@0:     if (!JS::IsIncrementalGCInProgress(rt))
michael@0:         return;
michael@0: 
michael@0:     for (ZonesIter zone(rt, WithAtoms); !zone.done(); zone.next()) {
michael@0:         if (zone->wasGCStarted())
michael@0:             PrepareZoneForGC(zone);
michael@0:     }
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS::IsGCScheduled(JSRuntime *rt)
michael@0: {
michael@0:     for (ZonesIter zone(rt, WithAtoms); !zone.done(); zone.next()) {
michael@0:         if (zone->isGCScheduled())
michael@0:             return true;
michael@0:     }
michael@0: 
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::SkipZoneForGC(Zone *zone)
michael@0: {
michael@0:     zone->unscheduleGC();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::GCForReason(JSRuntime *rt, gcreason::Reason reason)
michael@0: {
michael@0:     GC(rt, GC_NORMAL, reason);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::ShrinkingGC(JSRuntime *rt, gcreason::Reason reason)
michael@0: {
michael@0:     GC(rt, GC_SHRINK, reason);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::IncrementalGC(JSRuntime *rt, gcreason::Reason reason, int64_t millis)
michael@0: {
michael@0:     GCSlice(rt, GC_NORMAL, reason, millis);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::FinishIncrementalGC(JSRuntime *rt, gcreason::Reason reason)
michael@0: {
michael@0:     GCFinalSlice(rt, GC_NORMAL, reason);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSPrincipals *)
michael@0: JS_GetCompartmentPrincipals(JSCompartment *compartment)
michael@0: {
michael@0:     return compartment->principals;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS_SetCompartmentPrincipals(JSCompartment *compartment, JSPrincipals *principals)
michael@0: {
michael@0:     // Short circuit if there's no change.
michael@0:     if (principals == compartment->principals)
michael@0:         return;
michael@0: 
michael@0:     // Any compartment with the trusted principals -- and there can be
michael@0:     // multiple -- is a system compartment.
michael@0:     const JSPrincipals *trusted = compartment->runtimeFromMainThread()->trustedPrincipals();
michael@0:     bool isSystem = principals && principals == trusted;
michael@0: 
michael@0:     // Clear out the old principals, if any.
michael@0:     if (compartment->principals) {
michael@0:         JS_DropPrincipals(compartment->runtimeFromMainThread(), compartment->principals);
michael@0:         compartment->principals = nullptr;
michael@0:         // We'd like to assert that our new principals is always same-origin
michael@0:         // with the old one, but JSPrincipals doesn't give us a way to do that.
michael@0:         // But we can at least assert that we're not switching between system
michael@0:         // and non-system.
michael@0:         JS_ASSERT(compartment->isSystem == isSystem);
michael@0:     }
michael@0: 
michael@0:     // Set up the new principals.
michael@0:     if (principals) {
michael@0:         JS_HoldPrincipals(principals);
michael@0:         compartment->principals = principals;
michael@0:     }
michael@0: 
michael@0:     // Update the system flag.
michael@0:     compartment->isSystem = isSystem;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS_WrapPropertyDescriptor(JSContext *cx, JS::MutableHandle<js::PropertyDescriptor> desc)
michael@0: {
michael@0:     return cx->compartment()->wrap(cx, desc);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS_WrapAutoIdVector(JSContext *cx, js::AutoIdVector &props)
michael@0: {
michael@0:     return cx->compartment()->wrap(cx, props);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS_TraceShapeCycleCollectorChildren(JSTracer *trc, void *shape)
michael@0: {
michael@0:     MarkCycleCollectorChildren(trc, static_cast<Shape *>(shape));
michael@0: }
michael@0: 
michael@0: static bool
michael@0: DefineHelpProperty(JSContext *cx, HandleObject obj, const char *prop, const char *value)
michael@0: {
michael@0:     RootedAtom atom(cx, Atomize(cx, value, strlen(value)));
michael@0:     if (!atom)
michael@0:         return false;
michael@0:     return JS_DefineProperty(cx, obj, prop, atom, JSPROP_READONLY | JSPROP_PERMANENT,
michael@0:                              JS_PropertyStub, JS_StrictPropertyStub);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS_DefineFunctionsWithHelp(JSContext *cx, HandleObject obj, const JSFunctionSpecWithHelp *fs)
michael@0: {
michael@0:     JS_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
michael@0: 
michael@0:     CHECK_REQUEST(cx);
michael@0:     assertSameCompartment(cx, obj);
michael@0:     for (; fs->name; fs++) {
michael@0:         JSAtom *atom = Atomize(cx, fs->name, strlen(fs->name));
michael@0:         if (!atom)
michael@0:             return false;
michael@0: 
michael@0:         Rooted<jsid> id(cx, AtomToId(atom));
michael@0:         RootedFunction fun(cx, DefineFunction(cx, obj, id, fs->call, fs->nargs, fs->flags));
michael@0:         if (!fun)
michael@0:             return false;
michael@0: 
michael@0:         if (fs->usage) {
michael@0:             if (!DefineHelpProperty(cx, fun, "usage", fs->usage))
michael@0:                 return false;
michael@0:         }
michael@0: 
michael@0:         if (fs->help) {
michael@0:             if (!DefineHelpProperty(cx, fun, "help", fs->help))
michael@0:                 return false;
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js_ObjectClassIs(JSContext *cx, HandleObject obj, ESClassValue classValue)
michael@0: {
michael@0:     return ObjectClassIs(obj, classValue, cx);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(const char *)
michael@0: js_ObjectClassName(JSContext *cx, HandleObject obj)
michael@0: {
michael@0:     return JSObject::className(cx, obj);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JS::Zone *)
michael@0: js::GetCompartmentZone(JSCompartment *comp)
michael@0: {
michael@0:     return comp->zone();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsSystemCompartment(JSCompartment *comp)
michael@0: {
michael@0:     return comp->isSystem;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsSystemZone(Zone *zone)
michael@0: {
michael@0:     return zone->isSystem;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsAtomsCompartment(JSCompartment *comp)
michael@0: {
michael@0:     return comp->runtimeFromAnyThread()->isAtomsCompartment(comp);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsInNonStrictPropertySet(JSContext *cx)
michael@0: {
michael@0:     jsbytecode *pc;
michael@0:     JSScript *script = cx->currentScript(&pc, JSContext::ALLOW_CROSS_COMPARTMENT);
michael@0:     return script && !script->strict() && (js_CodeSpec[*pc].format & JOF_SET);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsFunctionObject(JSObject *obj)
michael@0: {
michael@0:     return obj->is<JSFunction>();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsScopeObject(JSObject *obj)
michael@0: {
michael@0:     return obj->is<ScopeObject>();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsCallObject(JSObject *obj)
michael@0: {
michael@0:     return obj->is<CallObject>();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: js::GetObjectParentMaybeScope(JSObject *obj)
michael@0: {
michael@0:     return obj->enclosingScope();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: js::GetGlobalForObjectCrossCompartment(JSObject *obj)
michael@0: {
michael@0:     return &obj->global();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetPendingExceptionCrossContext(JSContext *cx, JS::HandleValue v)
michael@0: {
michael@0:     cx->setPendingException(v);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::AssertSameCompartment(JSContext *cx, JSObject *obj)
michael@0: {
michael@0:     assertSameCompartment(cx, obj);
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG
michael@0: JS_FRIEND_API(void)
michael@0: js::AssertSameCompartment(JSObject *objA, JSObject *objB)
michael@0: {
michael@0:     JS_ASSERT(objA->compartment() == objB->compartment());
michael@0: }
michael@0: #endif
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: js::DefaultObjectForContextOrNull(JSContext *cx)
michael@0: {
michael@0:     if (cx->options().noDefaultCompartmentObject())
michael@0:         return nullptr;
michael@0:     return cx->maybeDefaultCompartmentObject();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetDefaultObjectForContext(JSContext *cx, JSObject *obj)
michael@0: {
michael@0:     cx->setDefaultCompartmentObject(obj);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::NotifyAnimationActivity(JSObject *obj)
michael@0: {
michael@0:     obj->compartment()->lastAnimationTime = PRMJ_Now();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(uint32_t)
michael@0: js::GetObjectSlotSpan(JSObject *obj)
michael@0: {
michael@0:     return obj->slotSpan();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsObjectInContextCompartment(JSObject *obj, const JSContext *cx)
michael@0: {
michael@0:     return obj->compartment() == cx->compartment();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::RunningWithTrustedPrincipals(JSContext *cx)
michael@0: {
michael@0:     return cx->runningWithTrustedPrincipals();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSScript *)
michael@0: js::GetOutermostEnclosingFunctionOfScriptedCaller(JSContext *cx)
michael@0: {
michael@0:     ScriptFrameIter iter(cx);
michael@0:     if (iter.done())
michael@0:         return nullptr;
michael@0: 
michael@0:     if (!iter.isFunctionFrame())
michael@0:         return nullptr;
michael@0: 
michael@0:     RootedFunction scriptedCaller(cx, iter.callee());
michael@0:     RootedScript outermost(cx, scriptedCaller->nonLazyScript());
michael@0:     for (StaticScopeIter<NoGC> i(scriptedCaller); !i.done(); i++) {
michael@0:         if (i.type() == StaticScopeIter<NoGC>::FUNCTION)
michael@0:             outermost = i.funScript();
michael@0:     }
michael@0:     return outermost;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSFunction *)
michael@0: js::DefineFunctionWithReserved(JSContext *cx, JSObject *objArg, const char *name, JSNative call,
michael@0:                                unsigned nargs, unsigned attrs)
michael@0: {
michael@0:     RootedObject obj(cx, objArg);
michael@0:     JS_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
michael@0:     CHECK_REQUEST(cx);
michael@0:     assertSameCompartment(cx, obj);
michael@0:     JSAtom *atom = Atomize(cx, name, strlen(name));
michael@0:     if (!atom)
michael@0:         return nullptr;
michael@0:     Rooted<jsid> id(cx, AtomToId(atom));
michael@0:     return DefineFunction(cx, obj, id, call, nargs, attrs, JSFunction::ExtendedFinalizeKind);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSFunction *)
michael@0: js::NewFunctionWithReserved(JSContext *cx, JSNative native, unsigned nargs, unsigned flags,
michael@0:                             JSObject *parentArg, const char *name)
michael@0: {
michael@0:     RootedObject parent(cx, parentArg);
michael@0:     JS_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
michael@0: 
michael@0:     CHECK_REQUEST(cx);
michael@0:     assertSameCompartment(cx, parent);
michael@0: 
michael@0:     RootedAtom atom(cx);
michael@0:     if (name) {
michael@0:         atom = Atomize(cx, name, strlen(name));
michael@0:         if (!atom)
michael@0:             return nullptr;
michael@0:     }
michael@0: 
michael@0:     JSFunction::Flags funFlags = JSAPIToJSFunctionFlags(flags);
michael@0:     return NewFunction(cx, NullPtr(), native, nargs, funFlags, parent, atom,
michael@0:                        JSFunction::ExtendedFinalizeKind);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSFunction *)
michael@0: js::NewFunctionByIdWithReserved(JSContext *cx, JSNative native, unsigned nargs, unsigned flags, JSObject *parentArg,
michael@0:                                 jsid id)
michael@0: {
michael@0:     RootedObject parent(cx, parentArg);
michael@0:     JS_ASSERT(JSID_IS_STRING(id));
michael@0:     JS_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
michael@0:     CHECK_REQUEST(cx);
michael@0:     assertSameCompartment(cx, parent);
michael@0: 
michael@0:     RootedAtom atom(cx, JSID_TO_ATOM(id));
michael@0:     JSFunction::Flags funFlags = JSAPIToJSFunctionFlags(flags);
michael@0:     return NewFunction(cx, NullPtr(), native, nargs, funFlags, parent, atom,
michael@0:                        JSFunction::ExtendedFinalizeKind);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: js::InitClassWithReserved(JSContext *cx, JSObject *objArg, JSObject *parent_protoArg,
michael@0:                           const JSClass *clasp, JSNative constructor, unsigned nargs,
michael@0:                           const JSPropertySpec *ps, const JSFunctionSpec *fs,
michael@0:                           const JSPropertySpec *static_ps, const JSFunctionSpec *static_fs)
michael@0: {
michael@0:     RootedObject obj(cx, objArg);
michael@0:     RootedObject parent_proto(cx, parent_protoArg);
michael@0:     CHECK_REQUEST(cx);
michael@0:     assertSameCompartment(cx, obj, parent_proto);
michael@0:     return js_InitClass(cx, obj, parent_proto, Valueify(clasp), constructor,
michael@0:                         nargs, ps, fs, static_ps, static_fs, nullptr,
michael@0:                         JSFunction::ExtendedFinalizeKind);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(const Value &)
michael@0: js::GetFunctionNativeReserved(JSObject *fun, size_t which)
michael@0: {
michael@0:     JS_ASSERT(fun->as<JSFunction>().isNative());
michael@0:     return fun->as<JSFunction>().getExtendedSlot(which);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetFunctionNativeReserved(JSObject *fun, size_t which, const Value &val)
michael@0: {
michael@0:     JS_ASSERT(fun->as<JSFunction>().isNative());
michael@0:     MOZ_ASSERT_IF(val.isObject(), val.toObject().compartment() == fun->compartment());
michael@0:     fun->as<JSFunction>().setExtendedSlot(which, val);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::GetObjectProto(JSContext *cx, JS::Handle<JSObject*> obj, JS::MutableHandle<JSObject*> proto)
michael@0: {
michael@0:     if (IsProxy(obj))
michael@0:         return JS_GetPrototype(cx, obj, proto);
michael@0: 
michael@0:     proto.set(reinterpret_cast<const shadow::Object*>(obj.get())->type->proto);
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::GetOriginalEval(JSContext *cx, HandleObject scope, MutableHandleObject eval)
michael@0: {
michael@0:     assertSameCompartment(cx, scope);
michael@0:     Rooted<GlobalObject *> global(cx, &scope->global());
michael@0:     return GlobalObject::getOrCreateEval(cx, global, eval);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetReservedSlotWithBarrier(JSObject *obj, size_t slot, const js::Value &value)
michael@0: {
michael@0:     obj->setSlot(slot, value);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::GetGeneric(JSContext *cx, JSObject *objArg, JSObject *receiverArg, jsid idArg,
michael@0:                Value *vp)
michael@0: {
michael@0:     RootedObject obj(cx, objArg), receiver(cx, receiverArg);
michael@0:     RootedId id(cx, idArg);
michael@0:     RootedValue value(cx);
michael@0:     if (!JSObject::getGeneric(cx, obj, receiver, id, &value))
michael@0:         return false;
michael@0:     *vp = value;
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: void
michael@0: js::SetPreserveWrapperCallback(JSRuntime *rt, PreserveWrapperCallback callback)
michael@0: {
michael@0:     rt->preserveWrapperCallback = callback;
michael@0: }
michael@0: 
michael@0: /*
michael@0:  * The below code is for temporary telemetry use. It can be removed when
michael@0:  * sufficient data has been harvested.
michael@0:  */
michael@0: 
michael@0: namespace js {
michael@0: // Defined in vm/GlobalObject.cpp.
michael@0: extern size_t sSetProtoCalled;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(size_t)
michael@0: JS_SetProtoCalled(JSContext *)
michael@0: {
michael@0:     return sSetProtoCalled;
michael@0: }
michael@0: 
michael@0: // Defined in jsiter.cpp.
michael@0: extern size_t sCustomIteratorCount;
michael@0: 
michael@0: JS_FRIEND_API(size_t)
michael@0: JS_GetCustomIteratorCount(JSContext *cx)
michael@0: {
michael@0:     return sCustomIteratorCount;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS_IsDeadWrapper(JSObject *obj)
michael@0: {
michael@0:     if (!obj->is<ProxyObject>()) {
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0:     return obj->as<ProxyObject>().handler()->family() == &DeadObjectProxy::sDeadObjectFamily;
michael@0: }
michael@0: 
michael@0: void
michael@0: js::TraceWeakMaps(WeakMapTracer *trc)
michael@0: {
michael@0:     WeakMapBase::traceAllMappings(trc);
michael@0:     WatchpointMap::traceAll(trc);
michael@0: }
michael@0: 
michael@0: extern JS_FRIEND_API(bool)
michael@0: js::AreGCGrayBitsValid(JSRuntime *rt)
michael@0: {
michael@0:     return rt->gcGrayBitsValid;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::ZoneGlobalsAreAllGray(JS::Zone *zone)
michael@0: {
michael@0:     for (CompartmentsInZoneIter comp(zone); !comp.done(); comp.next()) {
michael@0:         JSObject *obj = comp->maybeGlobal();
michael@0:         if (!obj || !JS::GCThingIsMarkedGray(obj))
michael@0:             return false;
michael@0:     }
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSGCTraceKind)
michael@0: js::GCThingTraceKind(void *thing)
michael@0: {
michael@0:     JS_ASSERT(thing);
michael@0:     return gc::GetGCThingTraceKind(thing);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::VisitGrayWrapperTargets(Zone *zone, GCThingCallback callback, void *closure)
michael@0: {
michael@0:     JSRuntime *rt = zone->runtimeFromMainThread();
michael@0:     for (CompartmentsInZoneIter comp(zone); !comp.done(); comp.next()) {
michael@0:         for (JSCompartment::WrapperEnum e(comp); !e.empty(); e.popFront()) {
michael@0:             gc::Cell *thing = e.front().key().wrapped;
michael@0:             if (!IsInsideNursery(rt, thing) && thing->isMarked(gc::GRAY))
michael@0:                 callback(closure, thing);
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: js::GetWeakmapKeyDelegate(JSObject *key)
michael@0: {
michael@0:     if (JSWeakmapKeyDelegateOp op = key->getClass()->ext.weakmapKeyDelegateOp)
michael@0:         return op(key);
michael@0:     return nullptr;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS_SetAccumulateTelemetryCallback(JSRuntime *rt, JSAccumulateTelemetryDataCallback callback)
michael@0: {
michael@0:     rt->telemetryCallback = callback;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: JS_CloneObject(JSContext *cx, HandleObject obj, HandleObject protoArg, HandleObject parent)
michael@0: {
michael@0:     Rooted<js::TaggedProto> proto(cx, protoArg.get());
michael@0:     return CloneObject(cx, obj, proto, parent);
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG
michael@0: JS_FRIEND_API(void)
michael@0: js_DumpString(JSString *str)
michael@0: {
michael@0:     str->dump();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js_DumpAtom(JSAtom *atom)
michael@0: {
michael@0:     atom->dump();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js_DumpChars(const jschar *s, size_t n)
michael@0: {
michael@0:     fprintf(stderr, "jschar * (%p) = ", (void *) s);
michael@0:     JSString::dumpChars(s, n);
michael@0:     fputc('\n', stderr);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js_DumpObject(JSObject *obj)
michael@0: {
michael@0:     if (!obj) {
michael@0:         fprintf(stderr, "NULL\n");
michael@0:         return;
michael@0:     }
michael@0:     obj->dump();
michael@0: }
michael@0: 
michael@0: #endif
michael@0: 
michael@0: struct DumpHeapTracer : public JSTracer
michael@0: {
michael@0:     FILE   *output;
michael@0: 
michael@0:     DumpHeapTracer(FILE *fp, JSRuntime *rt, JSTraceCallback callback,
michael@0:                    WeakMapTraceKind weakTraceKind)
michael@0:       : JSTracer(rt, callback, weakTraceKind), output(fp)
michael@0:     {}
michael@0: };
michael@0: 
michael@0: static char
michael@0: MarkDescriptor(void *thing)
michael@0: {
michael@0:     gc::Cell *cell = static_cast<gc::Cell*>(thing);
michael@0:     if (cell->isMarked(gc::BLACK))
michael@0:         return cell->isMarked(gc::GRAY) ? 'G' : 'B';
michael@0:     else
michael@0:         return cell->isMarked(gc::GRAY) ? 'X' : 'W';
michael@0: }
michael@0: 
michael@0: static void
michael@0: DumpHeapVisitZone(JSRuntime *rt, void *data, Zone *zone)
michael@0: {
michael@0:     DumpHeapTracer *dtrc = static_cast<DumpHeapTracer *>(data);
michael@0:     fprintf(dtrc->output, "# zone %p\n", (void *)zone);
michael@0: }
michael@0: 
michael@0: static void
michael@0: DumpHeapVisitCompartment(JSRuntime *rt, void *data, JSCompartment *comp)
michael@0: {
michael@0:     char name[1024];
michael@0:     if (rt->compartmentNameCallback)
michael@0:         (*rt->compartmentNameCallback)(rt, comp, name, sizeof(name));
michael@0:     else
michael@0:         strcpy(name, "<unknown>");
michael@0: 
michael@0:     DumpHeapTracer *dtrc = static_cast<DumpHeapTracer *>(data);
michael@0:     fprintf(dtrc->output, "# compartment %s [in zone %p]\n", name, (void *)comp->zone());
michael@0: }
michael@0: 
michael@0: static void
michael@0: DumpHeapVisitArena(JSRuntime *rt, void *data, gc::Arena *arena,
michael@0:                    JSGCTraceKind traceKind, size_t thingSize)
michael@0: {
michael@0:     DumpHeapTracer *dtrc = static_cast<DumpHeapTracer *>(data);
michael@0:     fprintf(dtrc->output, "# arena allockind=%u size=%u\n",
michael@0:             unsigned(arena->aheader.getAllocKind()), unsigned(thingSize));
michael@0: }
michael@0: 
michael@0: static void
michael@0: DumpHeapVisitCell(JSRuntime *rt, void *data, void *thing,
michael@0:                   JSGCTraceKind traceKind, size_t thingSize)
michael@0: {
michael@0:     DumpHeapTracer *dtrc = static_cast<DumpHeapTracer *>(data);
michael@0:     char cellDesc[1024 * 32];
michael@0:     JS_GetTraceThingInfo(cellDesc, sizeof(cellDesc), dtrc, thing, traceKind, true);
michael@0:     fprintf(dtrc->output, "%p %c %s\n", thing, MarkDescriptor(thing), cellDesc);
michael@0:     JS_TraceChildren(dtrc, thing, traceKind);
michael@0: }
michael@0: 
michael@0: static void
michael@0: DumpHeapVisitChild(JSTracer *trc, void **thingp, JSGCTraceKind kind)
michael@0: {
michael@0:     if (gc::IsInsideNursery(trc->runtime(), *thingp))
michael@0:         return;
michael@0: 
michael@0:     DumpHeapTracer *dtrc = static_cast<DumpHeapTracer *>(trc);
michael@0:     char buffer[1024];
michael@0:     fprintf(dtrc->output, "> %p %c %s\n", *thingp, MarkDescriptor(*thingp),
michael@0:             dtrc->getTracingEdgeName(buffer, sizeof(buffer)));
michael@0: }
michael@0: 
michael@0: static void
michael@0: DumpHeapVisitRoot(JSTracer *trc, void **thingp, JSGCTraceKind kind)
michael@0: {
michael@0:     if (gc::IsInsideNursery(trc->runtime(), *thingp))
michael@0:         return;
michael@0: 
michael@0:     DumpHeapTracer *dtrc = static_cast<DumpHeapTracer *>(trc);
michael@0:     char buffer[1024];
michael@0:     fprintf(dtrc->output, "%p %c %s\n", *thingp, MarkDescriptor(*thingp),
michael@0:             dtrc->getTracingEdgeName(buffer, sizeof(buffer)));
michael@0: }
michael@0: 
michael@0: void
michael@0: js::DumpHeapComplete(JSRuntime *rt, FILE *fp, js::DumpHeapNurseryBehaviour nurseryBehaviour)
michael@0: {
michael@0: #ifdef JSGC_GENERATIONAL
michael@0:     if (nurseryBehaviour == js::CollectNurseryBeforeDump)
michael@0:         MinorGC(rt, JS::gcreason::API);
michael@0: #endif
michael@0: 
michael@0:     DumpHeapTracer dtrc(fp, rt, DumpHeapVisitRoot, TraceWeakMapKeysValues);
michael@0:     TraceRuntime(&dtrc);
michael@0: 
michael@0:     fprintf(dtrc.output, "==========\n");
michael@0: 
michael@0:     dtrc.setTraceCallback(DumpHeapVisitChild);
michael@0:     IterateZonesCompartmentsArenasCells(rt, &dtrc,
michael@0:                                         DumpHeapVisitZone,
michael@0:                                         DumpHeapVisitCompartment,
michael@0:                                         DumpHeapVisitArena,
michael@0:                                         DumpHeapVisitCell);
michael@0: 
michael@0:     fflush(dtrc.output);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(const JSStructuredCloneCallbacks *)
michael@0: js::GetContextStructuredCloneCallbacks(JSContext *cx)
michael@0: {
michael@0:     return cx->runtime()->structuredCloneCallbacks;
michael@0: }
michael@0: 
michael@0: #ifdef JS_THREADSAFE
michael@0: JS_FRIEND_API(bool)
michael@0: js::ContextHasOutstandingRequests(const JSContext *cx)
michael@0: {
michael@0:     return cx->outstandingRequests > 0;
michael@0: }
michael@0: #endif
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetActivityCallback(JSRuntime *rt, ActivityCallback cb, void *arg)
michael@0: {
michael@0:     rt->activityCallback = cb;
michael@0:     rt->activityCallbackArg = arg;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::IsContextRunningJS(JSContext *cx)
michael@0: {
michael@0:     return cx->currentlyRunning();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JS::GCSliceCallback)
michael@0: JS::SetGCSliceCallback(JSRuntime *rt, GCSliceCallback callback)
michael@0: {
michael@0:     JS::GCSliceCallback old = rt->gcSliceCallback;
michael@0:     rt->gcSliceCallback = callback;
michael@0:     return old;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS::WasIncrementalGC(JSRuntime *rt)
michael@0: {
michael@0:     return rt->gcIsIncremental;
michael@0: }
michael@0: 
michael@0: jschar *
michael@0: GCDescription::formatMessage(JSRuntime *rt) const
michael@0: {
michael@0:     return rt->gcStats.formatMessage();
michael@0: }
michael@0: 
michael@0: jschar *
michael@0: GCDescription::formatJSON(JSRuntime *rt, uint64_t timestamp) const
michael@0: {
michael@0:     return rt->gcStats.formatJSON(timestamp);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::NotifyDidPaint(JSRuntime *rt)
michael@0: {
michael@0:     if (rt->gcZeal() == gc::ZealFrameVerifierPreValue) {
michael@0:         gc::VerifyBarriers(rt, gc::PreBarrierVerifier);
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     if (rt->gcZeal() == gc::ZealFrameVerifierPostValue) {
michael@0:         gc::VerifyBarriers(rt, gc::PostBarrierVerifier);
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     if (rt->gcZeal() == gc::ZealFrameGCValue) {
michael@0:         PrepareForFullGC(rt);
michael@0:         GCSlice(rt, GC_NORMAL, gcreason::REFRESH_FRAME);
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     if (JS::IsIncrementalGCInProgress(rt) && !rt->gcInterFrameGC) {
michael@0:         JS::PrepareForIncrementalGC(rt);
michael@0:         GCSlice(rt, GC_NORMAL, gcreason::REFRESH_FRAME);
michael@0:     }
michael@0: 
michael@0:     rt->gcInterFrameGC = false;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS::IsIncrementalGCEnabled(JSRuntime *rt)
michael@0: {
michael@0:     return rt->gcIncrementalEnabled && rt->gcMode() == JSGC_MODE_INCREMENTAL;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS::IsIncrementalGCInProgress(JSRuntime *rt)
michael@0: {
michael@0:     return rt->gcIncrementalState != gc::NO_INCREMENTAL && !rt->gcVerifyPreData;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::DisableIncrementalGC(JSRuntime *rt)
michael@0: {
michael@0:     rt->gcIncrementalEnabled = false;
michael@0: }
michael@0: 
michael@0: JS::AutoDisableGenerationalGC::AutoDisableGenerationalGC(JSRuntime *rt)
michael@0:   : runtime(rt)
michael@0: #if defined(JSGC_GENERATIONAL) && defined(JS_GC_ZEAL)
michael@0:   , restartVerifier(rt->gcVerifyPostData)
michael@0: #endif
michael@0: {
michael@0: #ifdef JSGC_GENERATIONAL
michael@0:     if (IsGenerationalGCEnabled(rt)) {
michael@0: #ifdef JS_GC_ZEAL
michael@0:         if (restartVerifier)
michael@0:             gc::EndVerifyPostBarriers(rt);
michael@0: #endif
michael@0:         MinorGC(rt, JS::gcreason::API);
michael@0:         rt->gcNursery.disable();
michael@0:         rt->gcStoreBuffer.disable();
michael@0:     }
michael@0: #endif
michael@0:     ++rt->gcGenerationalDisabled;
michael@0: }
michael@0: 
michael@0: JS::AutoDisableGenerationalGC::~AutoDisableGenerationalGC()
michael@0: {
michael@0:     JS_ASSERT(runtime->gcGenerationalDisabled > 0);
michael@0:     --runtime->gcGenerationalDisabled;
michael@0: #ifdef JSGC_GENERATIONAL
michael@0:     if (runtime->gcGenerationalDisabled == 0) {
michael@0:         runtime->gcNursery.enable();
michael@0:         runtime->gcStoreBuffer.enable();
michael@0: #ifdef JS_GC_ZEAL
michael@0:         if (restartVerifier)
michael@0:             gc::StartVerifyPostBarriers(runtime);
michael@0: #endif
michael@0:     }
michael@0: #endif
michael@0: }
michael@0: 
michael@0: extern JS_FRIEND_API(bool)
michael@0: JS::IsGenerationalGCEnabled(JSRuntime *rt)
michael@0: {
michael@0:     return rt->gcGenerationalDisabled == 0;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS::IsIncrementalBarrierNeeded(JSRuntime *rt)
michael@0: {
michael@0:     return rt->gcIncrementalState == gc::MARK && !rt->isHeapBusy();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: JS::IsIncrementalBarrierNeeded(JSContext *cx)
michael@0: {
michael@0:     return IsIncrementalBarrierNeeded(cx->runtime());
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::IncrementalObjectBarrier(JSObject *obj)
michael@0: {
michael@0:     if (!obj)
michael@0:         return;
michael@0: 
michael@0:     JS_ASSERT(!obj->zone()->runtimeFromMainThread()->isHeapMajorCollecting());
michael@0: 
michael@0:     AutoMarkInDeadZone amn(obj->zone());
michael@0: 
michael@0:     JSObject::writeBarrierPre(obj);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::IncrementalReferenceBarrier(void *ptr, JSGCTraceKind kind)
michael@0: {
michael@0:     if (!ptr)
michael@0:         return;
michael@0: 
michael@0:     if (kind == JSTRACE_STRING && StringIsPermanentAtom(static_cast<JSString *>(ptr)))
michael@0:         return;
michael@0: 
michael@0:     gc::Cell *cell = static_cast<gc::Cell *>(ptr);
michael@0:     Zone *zone = kind == JSTRACE_OBJECT
michael@0:                  ? static_cast<JSObject *>(cell)->zone()
michael@0:                  : cell->tenuredZone();
michael@0: 
michael@0:     JS_ASSERT(!zone->runtimeFromMainThread()->isHeapMajorCollecting());
michael@0: 
michael@0:     AutoMarkInDeadZone amn(zone);
michael@0: 
michael@0:     if (kind == JSTRACE_OBJECT)
michael@0:         JSObject::writeBarrierPre(static_cast<JSObject*>(cell));
michael@0:     else if (kind == JSTRACE_STRING)
michael@0:         JSString::writeBarrierPre(static_cast<JSString*>(cell));
michael@0:     else if (kind == JSTRACE_SCRIPT)
michael@0:         JSScript::writeBarrierPre(static_cast<JSScript*>(cell));
michael@0:     else if (kind == JSTRACE_LAZY_SCRIPT)
michael@0:         LazyScript::writeBarrierPre(static_cast<LazyScript*>(cell));
michael@0:     else if (kind == JSTRACE_SHAPE)
michael@0:         Shape::writeBarrierPre(static_cast<Shape*>(cell));
michael@0:     else if (kind == JSTRACE_BASE_SHAPE)
michael@0:         BaseShape::writeBarrierPre(static_cast<BaseShape*>(cell));
michael@0:     else if (kind == JSTRACE_TYPE_OBJECT)
michael@0:         types::TypeObject::writeBarrierPre((types::TypeObject *) ptr);
michael@0:     else
michael@0:         MOZ_ASSUME_UNREACHABLE("invalid trace kind");
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::IncrementalValueBarrier(const Value &v)
michael@0: {
michael@0:     js::HeapValue::writeBarrierPre(v);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: JS::PokeGC(JSRuntime *rt)
michael@0: {
michael@0:     rt->gcPoke = true;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSCompartment *)
michael@0: js::GetAnyCompartmentInZone(JS::Zone *zone)
michael@0: {
michael@0:     CompartmentsInZoneIter comp(zone);
michael@0:     JS_ASSERT(!comp.done());
michael@0:     return comp.get();
michael@0: }
michael@0: 
michael@0: bool
michael@0: JS::ObjectPtr::isAboutToBeFinalized()
michael@0: {
michael@0:     return JS_IsAboutToBeFinalized(&value);
michael@0: }
michael@0: 
michael@0: void
michael@0: JS::ObjectPtr::trace(JSTracer *trc, const char *name)
michael@0: {
michael@0:     JS_CallHeapObjectTracer(trc, &value, name);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: js::GetTestingFunctions(JSContext *cx)
michael@0: {
michael@0:     RootedObject obj(cx, JS_NewObject(cx, nullptr, NullPtr(), NullPtr()));
michael@0:     if (!obj)
michael@0:         return nullptr;
michael@0: 
michael@0:     if (!DefineTestingFunctions(cx, obj, false))
michael@0:         return nullptr;
michael@0: 
michael@0:     return obj;
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG
michael@0: JS_FRIEND_API(unsigned)
michael@0: js::GetEnterCompartmentDepth(JSContext *cx)
michael@0: {
michael@0:   return cx->getEnterCompartmentDepth();
michael@0: }
michael@0: #endif
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetDOMCallbacks(JSRuntime *rt, const DOMCallbacks *callbacks)
michael@0: {
michael@0:     rt->DOMcallbacks = callbacks;
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(const DOMCallbacks *)
michael@0: js::GetDOMCallbacks(JSRuntime *rt)
michael@0: {
michael@0:     return rt->DOMcallbacks;
michael@0: }
michael@0: 
michael@0: static const void *gDOMProxyHandlerFamily = nullptr;
michael@0: static uint32_t gDOMProxyExpandoSlot = 0;
michael@0: static DOMProxyShadowsCheck gDOMProxyShadowsCheck;
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetDOMProxyInformation(const void *domProxyHandlerFamily, uint32_t domProxyExpandoSlot,
michael@0:                            DOMProxyShadowsCheck domProxyShadowsCheck)
michael@0: {
michael@0:     gDOMProxyHandlerFamily = domProxyHandlerFamily;
michael@0:     gDOMProxyExpandoSlot = domProxyExpandoSlot;
michael@0:     gDOMProxyShadowsCheck = domProxyShadowsCheck;
michael@0: }
michael@0: 
michael@0: const void *
michael@0: js::GetDOMProxyHandlerFamily()
michael@0: {
michael@0:     return gDOMProxyHandlerFamily;
michael@0: }
michael@0: 
michael@0: uint32_t
michael@0: js::GetDOMProxyExpandoSlot()
michael@0: {
michael@0:     return gDOMProxyExpandoSlot;
michael@0: }
michael@0: 
michael@0: DOMProxyShadowsCheck
michael@0: js::GetDOMProxyShadowsCheck()
michael@0: {
michael@0:     return gDOMProxyShadowsCheck;
michael@0: }
michael@0: 
michael@0: bool
michael@0: js::detail::IdMatchesAtom(jsid id, JSAtom *atom)
michael@0: {
michael@0:     return id == INTERNED_STRING_TO_JSID(nullptr, atom);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSContext *)
michael@0: js::DefaultJSContext(JSRuntime *rt)
michael@0: {
michael@0:     if (rt->defaultJSContextCallback) {
michael@0:         JSContext *cx = rt->defaultJSContextCallback(rt);
michael@0:         JS_ASSERT(cx);
michael@0:         return cx;
michael@0:     }
michael@0:     JS_ASSERT(rt->contextList.getFirst() == rt->contextList.getLast());
michael@0:     return rt->contextList.getFirst();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetDefaultJSContextCallback(JSRuntime *rt, DefaultJSContextCallback cb)
michael@0: {
michael@0:     rt->defaultJSContextCallback = cb;
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG
michael@0: JS_FRIEND_API(void)
michael@0: js::Debug_SetActiveJSContext(JSRuntime *rt, JSContext *cx)
michael@0: {
michael@0:     rt->activeContext = cx;
michael@0: }
michael@0: #endif
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetCTypesActivityCallback(JSRuntime *rt, CTypesActivityCallback cb)
michael@0: {
michael@0:     rt->ctypesActivityCallback = cb;
michael@0: }
michael@0: 
michael@0: js::AutoCTypesActivityCallback::AutoCTypesActivityCallback(JSContext *cx,
michael@0:                                                            js::CTypesActivityType beginType,
michael@0:                                                            js::CTypesActivityType endType
michael@0:                                                            MOZ_GUARD_OBJECT_NOTIFIER_PARAM_IN_IMPL)
michael@0:   : cx(cx), callback(cx->runtime()->ctypesActivityCallback), endType(endType)
michael@0: {
michael@0:     MOZ_GUARD_OBJECT_NOTIFIER_INIT;
michael@0: 
michael@0:     if (callback)
michael@0:         callback(cx, beginType);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::SetObjectMetadataCallback(JSContext *cx, ObjectMetadataCallback callback)
michael@0: {
michael@0:     cx->compartment()->setObjectMetadataCallback(callback);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js::SetObjectMetadata(JSContext *cx, HandleObject obj, HandleObject metadata)
michael@0: {
michael@0:     return JSObject::setMetadata(cx, obj, metadata);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(JSObject *)
michael@0: js::GetObjectMetadata(JSObject *obj)
michael@0: {
michael@0:     return obj->getMetadata();
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(void)
michael@0: js::UnsafeDefineElement(JSContext *cx, JS::HandleObject obj, uint32_t index, JS::HandleValue value)
michael@0: {
michael@0:     JS_ASSERT(obj->isNative());
michael@0:     JS_ASSERT(index < obj->getDenseInitializedLength());
michael@0:     obj->setDenseElementWithType(cx, index, value);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js_DefineOwnProperty(JSContext *cx, JSObject *objArg, jsid idArg,
michael@0:                      JS::Handle<js::PropertyDescriptor> descriptor, bool *bp)
michael@0: {
michael@0:     RootedObject obj(cx, objArg);
michael@0:     RootedId id(cx, idArg);
michael@0:     JS_ASSERT(cx->runtime()->heapState == js::Idle);
michael@0:     CHECK_REQUEST(cx);
michael@0:     assertSameCompartment(cx, obj, id, descriptor.value());
michael@0:     if (descriptor.hasGetterObject())
michael@0:         assertSameCompartment(cx, descriptor.getterObject());
michael@0:     if (descriptor.hasSetterObject())
michael@0:         assertSameCompartment(cx, descriptor.setterObject());
michael@0: 
michael@0:     return DefineOwnProperty(cx, HandleObject(obj), id, descriptor, bp);
michael@0: }
michael@0: 
michael@0: JS_FRIEND_API(bool)
michael@0: js_ReportIsNotFunction(JSContext *cx, JS::HandleValue v)
michael@0: {
michael@0:     return ReportIsNotFunction(cx, v);
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG
michael@0: JS_PUBLIC_API(bool)
michael@0: js::IsInRequest(JSContext *cx)
michael@0: {
michael@0: #ifdef JS_THREADSAFE
michael@0:     return !!cx->runtime()->requestDepth;
michael@0: #else
michael@0:     return true;
michael@0: #endif
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef JSGC_GENERATIONAL
michael@0: JS_FRIEND_API(void)
michael@0: JS_StoreObjectPostBarrierCallback(JSContext* cx,
michael@0:                                   void (*callback)(JSTracer *trc, JSObject *key, void *data),
michael@0:                                   JSObject *key, void *data)
michael@0: {
michael@0:     JSRuntime *rt = cx->runtime();
michael@0:     if (IsInsideNursery(rt, key))
michael@0:         rt->gcStoreBuffer.putCallback(callback, key, data);
michael@0: }
michael@0: 
michael@0: extern JS_FRIEND_API(void)
michael@0: JS_StoreStringPostBarrierCallback(JSContext* cx,
michael@0:                                   void (*callback)(JSTracer *trc, JSString *key, void *data),
michael@0:                                   JSString *key, void *data)
michael@0: {
michael@0:     JSRuntime *rt = cx->runtime();
michael@0:     if (IsInsideNursery(rt, key))
michael@0:         rt->gcStoreBuffer.putCallback(callback, key, data);
michael@0: }
michael@0: #endif /* JSGC_GENERATIONAL */