2017-04-19 07:56:45 +00:00
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "jsfriendapi.h"
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#include "mozilla/PodOperations.h"
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#include <stdint.h>
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#include "jscntxt.h"
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#include "jscompartment.h"
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#include "jsgc.h"
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#include "jsobj.h"
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#include "jsprf.h"
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#include "jswatchpoint.h"
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#include "jsweakmap.h"
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#include "jswrapper.h"
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#include "builtin/TestingFunctions.h"
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#include "js/Proxy.h"
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#include "proxy/DeadObjectProxy.h"
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#include "vm/ArgumentsObject.h"
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#include "vm/Time.h"
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#include "vm/WrapperObject.h"
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#include "jsobjinlines.h"
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#include "jsscriptinlines.h"
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#include "vm/NativeObject-inl.h"
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#include "vm/ScopeObject-inl.h"
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using namespace js;
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using mozilla::Move;
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using mozilla::PodArrayZero;
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using mozilla::UniquePtr;
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// Required by PerThreadDataFriendFields::getMainThread()
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JS_STATIC_ASSERT(offsetof(JSRuntime, mainThread) ==
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PerThreadDataFriendFields::RuntimeMainThreadOffset);
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PerThreadDataFriendFields::PerThreadDataFriendFields()
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{
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PodArrayZero(nativeStackLimit);
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#if JS_STACK_GROWTH_DIRECTION > 0
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for (int i=0; i<StackKindCount; i++)
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nativeStackLimit[i] = UINTPTR_MAX;
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#endif
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}
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JS_FRIEND_API(void)
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js::SetSourceHook(JSRuntime* rt, UniquePtr<SourceHook> hook)
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{
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rt->sourceHook = Move(hook);
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}
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JS_FRIEND_API(UniquePtr<SourceHook>)
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js::ForgetSourceHook(JSRuntime* rt)
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{
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return Move(rt->sourceHook);
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}
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JS_FRIEND_API(void)
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JS_SetGrayGCRootsTracer(JSRuntime* rt, JSTraceDataOp traceOp, void* data)
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{
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rt->gc.setGrayRootsTracer(traceOp, data);
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}
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JS_FRIEND_API(JSObject*)
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JS_FindCompilationScope(JSContext* cx, HandleObject objArg)
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{
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RootedObject obj(cx, objArg);
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/*
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* We unwrap wrappers here. This is a little weird, but it's what's being
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* asked of us.
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*/
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if (obj->is<WrapperObject>())
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obj = UncheckedUnwrap(obj);
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/*
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* Get the Window if `obj` is a WindowProxy so that we compile in the
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* correct (global) scope.
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*/
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return ToWindowIfWindowProxy(obj);
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}
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JS_FRIEND_API(JSFunction*)
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JS_GetObjectFunction(JSObject* obj)
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{
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if (obj->is<JSFunction>())
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return &obj->as<JSFunction>();
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return nullptr;
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}
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JS_FRIEND_API(bool)
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JS_SplicePrototype(JSContext* cx, HandleObject obj, HandleObject proto)
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{
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/*
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* Change the prototype of an object which hasn't been used anywhere
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* and does not share its type with another object. Unlike JS_SetPrototype,
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* does not nuke type information for the object.
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*/
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CHECK_REQUEST(cx);
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if (!obj->isSingleton()) {
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/*
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* We can see non-singleton objects when trying to splice prototypes
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* due to mutable __proto__ (ugh).
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*/
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return JS_SetPrototype(cx, obj, proto);
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}
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Rooted<TaggedProto> tagged(cx, TaggedProto(proto));
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return obj->splicePrototype(cx, obj->getClass(), tagged);
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}
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JS_FRIEND_API(JSObject*)
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JS_NewObjectWithUniqueType(JSContext* cx, const JSClass* clasp, HandleObject proto)
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{
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/*
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* Create our object with a null proto and then splice in the correct proto
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* after we setSingleton, so that we don't pollute the default
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* ObjectGroup attached to our proto with information about our object, since
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* we're not going to be using that ObjectGroup anyway.
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*/
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RootedObject obj(cx, NewObjectWithGivenProto(cx, (const js::Class*)clasp, nullptr,
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SingletonObject));
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if (!obj)
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return nullptr;
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if (!JS_SplicePrototype(cx, obj, proto))
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return nullptr;
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return obj;
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}
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JS_FRIEND_API(JSObject*)
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JS_NewObjectWithoutMetadata(JSContext* cx, const JSClass* clasp, JS::Handle<JSObject*> proto)
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{
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// Use an AutoEnterAnalysis to suppress invocation of the metadata callback.
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AutoEnterAnalysis enter(cx);
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return JS_NewObjectWithGivenProto(cx, clasp, proto);
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}
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JS_FRIEND_API(JSPrincipals*)
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JS_GetCompartmentPrincipals(JSCompartment* compartment)
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{
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return compartment->principals();
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}
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JS_FRIEND_API(void)
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JS_SetCompartmentPrincipals(JSCompartment* compartment, JSPrincipals* principals)
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{
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// Short circuit if there's no change.
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if (principals == compartment->principals())
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return;
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// Any compartment with the trusted principals -- and there can be
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// multiple -- is a system compartment.
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const JSPrincipals* trusted = compartment->runtimeFromMainThread()->trustedPrincipals();
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bool isSystem = principals && principals == trusted;
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// Clear out the old principals, if any.
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if (compartment->principals()) {
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JS_DropPrincipals(compartment->runtimeFromMainThread(), compartment->principals());
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compartment->setPrincipals(nullptr);
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// We'd like to assert that our new principals is always same-origin
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// with the old one, but JSPrincipals doesn't give us a way to do that.
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// But we can at least assert that we're not switching between system
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// and non-system.
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MOZ_ASSERT(compartment->isSystem() == isSystem);
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}
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// Set up the new principals.
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if (principals) {
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JS_HoldPrincipals(principals);
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compartment->setPrincipals(principals);
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}
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// Update the system flag.
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compartment->setIsSystem(isSystem);
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}
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JS_FRIEND_API(JSPrincipals*)
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JS_GetScriptPrincipals(JSScript* script)
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{
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return script->principals();
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}
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JS_FRIEND_API(bool)
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JS_ScriptHasMutedErrors(JSScript* script)
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{
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return script->mutedErrors();
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}
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JS_FRIEND_API(bool)
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JS_WrapPropertyDescriptor(JSContext* cx, JS::MutableHandle<js::PropertyDescriptor> desc)
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{
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return cx->compartment()->wrap(cx, desc);
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}
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JS_FRIEND_API(void)
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JS_TraceShapeCycleCollectorChildren(JS::CallbackTracer* trc, JS::GCCellPtr shape)
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{
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MOZ_ASSERT(shape.is<Shape>());
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TraceCycleCollectorChildren(trc, &shape.as<Shape>());
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}
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JS_FRIEND_API(void)
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JS_TraceObjectGroupCycleCollectorChildren(JS::CallbackTracer* trc, JS::GCCellPtr group)
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{
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MOZ_ASSERT(group.is<ObjectGroup>());
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TraceCycleCollectorChildren(trc, &group.as<ObjectGroup>());
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}
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static bool
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DefineHelpProperty(JSContext* cx, HandleObject obj, const char* prop, const char* value)
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{
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RootedAtom atom(cx, Atomize(cx, value, strlen(value)));
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if (!atom)
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return false;
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return JS_DefineProperty(cx, obj, prop, atom,
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JSPROP_READONLY | JSPROP_PERMANENT,
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JS_STUBGETTER, JS_STUBSETTER);
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}
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JS_FRIEND_API(bool)
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JS_DefineFunctionsWithHelp(JSContext* cx, HandleObject obj, const JSFunctionSpecWithHelp* fs)
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{
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MOZ_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
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CHECK_REQUEST(cx);
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assertSameCompartment(cx, obj);
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for (; fs->name; fs++) {
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JSAtom* atom = Atomize(cx, fs->name, strlen(fs->name));
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if (!atom)
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return false;
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Rooted<jsid> id(cx, AtomToId(atom));
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RootedFunction fun(cx, DefineFunction(cx, obj, id, fs->call, fs->nargs, fs->flags));
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if (!fun)
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return false;
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if (fs->jitInfo)
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fun->setJitInfo(fs->jitInfo);
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if (fs->usage) {
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if (!DefineHelpProperty(cx, fun, "usage", fs->usage))
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return false;
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}
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if (fs->help) {
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if (!DefineHelpProperty(cx, fun, "help", fs->help))
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return false;
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}
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}
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return true;
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}
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JS_FRIEND_API(bool)
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js::GetBuiltinClass(JSContext* cx, HandleObject obj, ESClassValue* classValue)
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{
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if (MOZ_UNLIKELY(obj->is<ProxyObject>()))
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return Proxy::getBuiltinClass(cx, obj, classValue);
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if (obj->is<PlainObject>() || obj->is<UnboxedPlainObject>())
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*classValue = ESClass_Object;
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else if (obj->is<ArrayObject>() || obj->is<UnboxedArrayObject>())
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*classValue = ESClass_Array;
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else if (obj->is<NumberObject>())
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*classValue = ESClass_Number;
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else if (obj->is<StringObject>())
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*classValue = ESClass_String;
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else if (obj->is<BooleanObject>())
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*classValue = ESClass_Boolean;
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else if (obj->is<RegExpObject>())
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*classValue = ESClass_RegExp;
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else if (obj->is<ArrayBufferObject>())
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*classValue = ESClass_ArrayBuffer;
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else if (obj->is<SharedArrayBufferObject>())
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*classValue = ESClass_SharedArrayBuffer;
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else if (obj->is<DateObject>())
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*classValue = ESClass_Date;
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else if (obj->is<SetObject>())
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*classValue = ESClass_Set;
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else if (obj->is<MapObject>())
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*classValue = ESClass_Map;
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else
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*classValue = ESClass_Other;
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return true;
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}
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JS_FRIEND_API(const char*)
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js::ObjectClassName(JSContext* cx, HandleObject obj)
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{
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return GetObjectClassName(cx, obj);
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}
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JS_FRIEND_API(JS::Zone*)
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js::GetCompartmentZone(JSCompartment* comp)
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{
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return comp->zone();
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}
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JS_FRIEND_API(bool)
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js::IsSystemCompartment(JSCompartment* comp)
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{
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return comp->isSystem();
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}
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JS_FRIEND_API(bool)
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js::IsSystemZone(Zone* zone)
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{
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return zone->isSystem;
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}
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JS_FRIEND_API(bool)
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js::IsAtomsCompartment(JSCompartment* comp)
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{
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return comp->runtimeFromAnyThread()->isAtomsCompartment(comp);
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}
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JS_FRIEND_API(bool)
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js::IsAtomsZone(JS::Zone* zone)
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{
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return zone->runtimeFromAnyThread()->isAtomsZone(zone);
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}
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JS_FRIEND_API(bool)
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js::IsFunctionObject(JSObject* obj)
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{
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return obj->is<JSFunction>();
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}
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JS_FRIEND_API(JSObject*)
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js::GetGlobalForObjectCrossCompartment(JSObject* obj)
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{
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return &obj->global();
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}
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JS_FRIEND_API(JSObject*)
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js::GetPrototypeNoProxy(JSObject* obj)
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{
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MOZ_ASSERT(!obj->is<js::ProxyObject>());
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MOZ_ASSERT(!obj->getTaggedProto().isLazy());
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return obj->getTaggedProto().toObjectOrNull();
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}
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JS_FRIEND_API(void)
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js::AssertSameCompartment(JSContext* cx, JSObject* obj)
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{
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assertSameCompartment(cx, obj);
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}
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#ifdef DEBUG
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JS_FRIEND_API(void)
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js::AssertSameCompartment(JSObject* objA, JSObject* objB)
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{
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MOZ_ASSERT(objA->compartment() == objB->compartment());
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}
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#endif
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JS_FRIEND_API(void)
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js::NotifyAnimationActivity(JSObject* obj)
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{
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int64_t timeNow = PRMJ_Now();
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obj->compartment()->lastAnimationTime = timeNow;
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obj->runtimeFromMainThread()->lastAnimationTime = timeNow;
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}
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JS_FRIEND_API(uint32_t)
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js::GetObjectSlotSpan(JSObject* obj)
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{
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return obj->as<NativeObject>().slotSpan();
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}
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|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::IsObjectInContextCompartment(JSObject* obj, const JSContext* cx)
|
|
|
|
{
|
|
|
|
return obj->compartment() == cx->compartment();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
2017-12-13 18:42:53 +00:00
|
|
|
js::CheckRecursion(JSContext* cx)
|
2017-04-19 07:56:45 +00:00
|
|
|
{
|
2017-12-13 18:42:53 +00:00
|
|
|
JS_CHECK_RECURSION(cx, return false);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::CheckRecursionConservative(JSContext* cx)
|
|
|
|
{
|
|
|
|
JS_CHECK_RECURSION_CONSERVATIVE(cx, return false);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::CheckRecursionConservativeDontReport(JSContext* cx)
|
|
|
|
{
|
|
|
|
JS_CHECK_RECURSION_CONSERVATIVE_DONT_REPORT(cx, return false);
|
|
|
|
return true;
|
2017-04-19 07:56:45 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSFunction*)
|
|
|
|
js::GetOutermostEnclosingFunctionOfScriptedCaller(JSContext* cx)
|
|
|
|
{
|
|
|
|
ScriptFrameIter iter(cx);
|
|
|
|
if (iter.done())
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
if (!iter.isFunctionFrame())
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
RootedFunction curr(cx, iter.callee(cx));
|
|
|
|
for (StaticScopeIter<NoGC> i(curr); !i.done(); i++) {
|
|
|
|
if (i.type() == StaticScopeIter<NoGC>::Function)
|
|
|
|
curr = &i.fun();
|
|
|
|
}
|
|
|
|
return curr;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSFunction*)
|
|
|
|
js::DefineFunctionWithReserved(JSContext* cx, JSObject* objArg, const char* name, JSNative call,
|
|
|
|
unsigned nargs, unsigned attrs)
|
|
|
|
{
|
|
|
|
RootedObject obj(cx, objArg);
|
|
|
|
MOZ_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
|
|
|
|
CHECK_REQUEST(cx);
|
|
|
|
assertSameCompartment(cx, obj);
|
|
|
|
JSAtom* atom = Atomize(cx, name, strlen(name));
|
|
|
|
if (!atom)
|
|
|
|
return nullptr;
|
|
|
|
Rooted<jsid> id(cx, AtomToId(atom));
|
|
|
|
return DefineFunction(cx, obj, id, call, nargs, attrs, gc::AllocKind::FUNCTION_EXTENDED);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSFunction*)
|
|
|
|
js::NewFunctionWithReserved(JSContext* cx, JSNative native, unsigned nargs, unsigned flags,
|
|
|
|
const char* name)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
|
|
|
|
|
|
|
|
CHECK_REQUEST(cx);
|
|
|
|
|
|
|
|
RootedAtom atom(cx);
|
|
|
|
if (name) {
|
|
|
|
atom = Atomize(cx, name, strlen(name));
|
|
|
|
if (!atom)
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (flags & JSFUN_CONSTRUCTOR) ?
|
|
|
|
NewNativeConstructor(cx, native, nargs, atom, gc::AllocKind::FUNCTION_EXTENDED) :
|
|
|
|
NewNativeFunction(cx, native, nargs, atom, gc::AllocKind::FUNCTION_EXTENDED);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSFunction*)
|
|
|
|
js::NewFunctionByIdWithReserved(JSContext* cx, JSNative native, unsigned nargs, unsigned flags,
|
|
|
|
jsid id)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(JSID_IS_STRING(id));
|
|
|
|
MOZ_ASSERT(!cx->runtime()->isAtomsCompartment(cx->compartment()));
|
|
|
|
CHECK_REQUEST(cx);
|
|
|
|
|
|
|
|
RootedAtom atom(cx, JSID_TO_ATOM(id));
|
|
|
|
return (flags & JSFUN_CONSTRUCTOR) ?
|
|
|
|
NewNativeConstructor(cx, native, nargs, atom, gc::AllocKind::FUNCTION_EXTENDED) :
|
|
|
|
NewNativeFunction(cx, native, nargs, atom, gc::AllocKind::FUNCTION_EXTENDED);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(const Value&)
|
|
|
|
js::GetFunctionNativeReserved(JSObject* fun, size_t which)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(fun->as<JSFunction>().isNative());
|
|
|
|
return fun->as<JSFunction>().getExtendedSlot(which);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetFunctionNativeReserved(JSObject* fun, size_t which, const Value& val)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(fun->as<JSFunction>().isNative());
|
|
|
|
MOZ_ASSERT_IF(val.isObject(), val.toObject().compartment() == fun->compartment());
|
|
|
|
fun->as<JSFunction>().setExtendedSlot(which, val);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::FunctionHasNativeReserved(JSObject* fun)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(fun->as<JSFunction>().isNative());
|
|
|
|
return fun->as<JSFunction>().isExtended();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::GetObjectProto(JSContext* cx, JS::Handle<JSObject*> obj, JS::MutableHandle<JSObject*> proto)
|
|
|
|
{
|
|
|
|
if (IsProxy(obj))
|
|
|
|
return JS_GetPrototype(cx, obj, proto);
|
|
|
|
|
|
|
|
proto.set(reinterpret_cast<const shadow::Object*>(obj.get())->group->proto);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::GetOriginalEval(JSContext* cx, HandleObject scope, MutableHandleObject eval)
|
|
|
|
{
|
|
|
|
assertSameCompartment(cx, scope);
|
|
|
|
Rooted<GlobalObject*> global(cx, &scope->global());
|
|
|
|
return GlobalObject::getOrCreateEval(cx, global, eval);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetReservedOrProxyPrivateSlotWithBarrier(JSObject* obj, size_t slot, const js::Value& value)
|
|
|
|
{
|
|
|
|
if (IsProxy(obj)) {
|
|
|
|
MOZ_ASSERT(slot == 0);
|
|
|
|
obj->as<ProxyObject>().setSameCompartmentPrivate(value);
|
|
|
|
} else {
|
|
|
|
obj->as<NativeObject>().setSlot(slot, value);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
js::SetPreserveWrapperCallback(JSRuntime* rt, PreserveWrapperCallback callback)
|
|
|
|
{
|
|
|
|
rt->preserveWrapperCallback = callback;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The below code is for temporary telemetry use. It can be removed when
|
|
|
|
* sufficient data has been harvested.
|
|
|
|
*/
|
|
|
|
|
|
|
|
namespace js {
|
|
|
|
// Defined in vm/GlobalObject.cpp.
|
|
|
|
extern size_t sSetProtoCalled;
|
|
|
|
} // namespace js
|
|
|
|
|
|
|
|
JS_FRIEND_API(size_t)
|
|
|
|
JS_SetProtoCalled(JSContext*)
|
|
|
|
{
|
|
|
|
return sSetProtoCalled;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Defined in jsiter.cpp.
|
|
|
|
extern size_t sCustomIteratorCount;
|
|
|
|
|
|
|
|
JS_FRIEND_API(size_t)
|
|
|
|
JS_GetCustomIteratorCount(JSContext* cx)
|
|
|
|
{
|
|
|
|
return sCustomIteratorCount;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(unsigned)
|
|
|
|
JS_PCToLineNumber(JSScript* script, jsbytecode* pc, unsigned* columnp)
|
|
|
|
{
|
|
|
|
return PCToLineNumber(script, pc, columnp);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
JS_IsDeadWrapper(JSObject* obj)
|
|
|
|
{
|
|
|
|
return IsDeadProxyObject(obj);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
js::TraceWeakMaps(WeakMapTracer* trc)
|
|
|
|
{
|
|
|
|
WeakMapBase::traceAllMappings(trc);
|
|
|
|
WatchpointMap::traceAll(trc);
|
|
|
|
}
|
|
|
|
|
|
|
|
extern JS_FRIEND_API(bool)
|
|
|
|
js::AreGCGrayBitsValid(JSRuntime* rt)
|
|
|
|
{
|
|
|
|
return rt->gc.areGrayBitsValid();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::ZoneGlobalsAreAllGray(JS::Zone* zone)
|
|
|
|
{
|
|
|
|
for (CompartmentsInZoneIter comp(zone); !comp.done(); comp.next()) {
|
|
|
|
JSObject* obj = comp->maybeGlobal();
|
|
|
|
if (!obj || !JS::ObjectIsMarkedGray(obj))
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JS::TraceKind)
|
|
|
|
js::GCThingTraceKind(void* thing)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(thing);
|
|
|
|
return static_cast<js::gc::Cell*>(thing)->getTraceKind();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::VisitGrayWrapperTargets(Zone* zone, GCThingCallback callback, void* closure)
|
|
|
|
{
|
|
|
|
for (CompartmentsInZoneIter comp(zone); !comp.done(); comp.next()) {
|
|
|
|
for (JSCompartment::WrapperEnum e(comp); !e.empty(); e.popFront()) {
|
|
|
|
gc::Cell* thing = e.front().key().wrapped;
|
|
|
|
if (thing->isTenured() && thing->asTenured().isMarked(gc::GRAY))
|
|
|
|
callback(closure, JS::GCCellPtr(thing, thing->asTenured().getTraceKind()));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSObject*)
|
|
|
|
js::GetWeakmapKeyDelegate(JSObject* key)
|
|
|
|
{
|
|
|
|
if (JSWeakmapKeyDelegateOp op = key->getClass()->ext.weakmapKeyDelegateOp)
|
|
|
|
return op(key);
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSLinearString*)
|
|
|
|
js::StringToLinearStringSlow(JSContext* cx, JSString* str)
|
|
|
|
{
|
|
|
|
return str->ensureLinear(cx);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
JS_SetAccumulateTelemetryCallback(JSRuntime* rt, JSAccumulateTelemetryDataCallback callback)
|
|
|
|
{
|
|
|
|
rt->setTelemetryCallback(rt, callback);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSObject*)
|
|
|
|
JS_CloneObject(JSContext* cx, HandleObject obj, HandleObject protoArg)
|
|
|
|
{
|
|
|
|
Rooted<TaggedProto> proto(cx, TaggedProto(protoArg.get()));
|
|
|
|
return CloneObject(cx, obj, proto);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::DumpString(JSString* str)
|
|
|
|
{
|
|
|
|
str->dump();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::DumpAtom(JSAtom* atom)
|
|
|
|
{
|
|
|
|
atom->dump();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::DumpChars(const char16_t* s, size_t n)
|
|
|
|
{
|
|
|
|
fprintf(stderr, "char16_t * (%p) = ", (void*) s);
|
|
|
|
JSString::dumpChars(s, n);
|
|
|
|
fputc('\n', stderr);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::DumpObject(JSObject* obj)
|
|
|
|
{
|
|
|
|
if (!obj) {
|
|
|
|
fprintf(stderr, "NULL\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
obj->dump();
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static const char*
|
|
|
|
FormatValue(JSContext* cx, const Value& vArg, JSAutoByteString& bytes)
|
|
|
|
{
|
|
|
|
RootedValue v(cx, vArg);
|
|
|
|
|
|
|
|
if (v.isMagic(JS_OPTIMIZED_OUT))
|
|
|
|
return "[unavailable]";
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We could use Maybe<AutoCompartment> here, but G++ can't quite follow
|
|
|
|
* that, and warns about uninitialized members being used in the
|
|
|
|
* destructor.
|
|
|
|
*/
|
|
|
|
RootedString str(cx);
|
|
|
|
if (v.isObject()) {
|
|
|
|
AutoCompartment ac(cx, &v.toObject());
|
|
|
|
str = ToString<CanGC>(cx, v);
|
|
|
|
} else {
|
|
|
|
str = ToString<CanGC>(cx, v);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!str)
|
|
|
|
return nullptr;
|
|
|
|
const char* buf = bytes.encodeLatin1(cx, str);
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
const char* found = strstr(buf, "function ");
|
|
|
|
if (found && (found - buf <= 2))
|
|
|
|
return "[function]";
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Wrapper for JS_sprintf_append() that reports allocation failure to the
|
|
|
|
// context.
|
|
|
|
template <typename... Args>
|
|
|
|
static char*
|
|
|
|
sprintf_append(JSContext* cx, char* buf, Args&&... args)
|
|
|
|
{
|
|
|
|
char* result = JS_sprintf_append(buf, mozilla::Forward<Args>(args)...);
|
|
|
|
if (!result) {
|
|
|
|
ReportOutOfMemory(cx);
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static char*
|
|
|
|
FormatFrame(JSContext* cx, const ScriptFrameIter& iter, char* buf, int num,
|
|
|
|
bool showArgs, bool showLocals, bool showThisProps)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(!cx->isExceptionPending());
|
|
|
|
RootedScript script(cx, iter.script());
|
|
|
|
jsbytecode* pc = iter.pc();
|
|
|
|
|
|
|
|
RootedObject scopeChain(cx, iter.scopeChain(cx));
|
|
|
|
JSAutoCompartment ac(cx, scopeChain);
|
|
|
|
|
|
|
|
const char* filename = script->filename();
|
|
|
|
unsigned lineno = PCToLineNumber(script, pc);
|
|
|
|
RootedFunction fun(cx, iter.maybeCallee(cx));
|
|
|
|
RootedString funname(cx);
|
|
|
|
if (fun)
|
|
|
|
funname = fun->displayAtom();
|
|
|
|
|
|
|
|
RootedValue thisVal(cx);
|
|
|
|
if (iter.hasUsableAbstractFramePtr() &&
|
|
|
|
iter.isNonEvalFunctionFrame() &&
|
|
|
|
fun && !fun->isArrow() && !fun->isDerivedClassConstructor())
|
|
|
|
{
|
|
|
|
if (!GetFunctionThis(cx, iter.abstractFramePtr(), &thisVal))
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
// print the frame number and function name
|
|
|
|
if (funname) {
|
|
|
|
JSAutoByteString funbytes;
|
|
|
|
char* str = funbytes.encodeLatin1(cx, funname);
|
|
|
|
if (!str)
|
|
|
|
return nullptr;
|
|
|
|
buf = sprintf_append(cx, buf, "%d %s(", num, str);
|
|
|
|
} else if (fun) {
|
|
|
|
buf = sprintf_append(cx, buf, "%d anonymous(", num);
|
|
|
|
} else {
|
|
|
|
buf = sprintf_append(cx, buf, "%d <TOP LEVEL>", num);
|
|
|
|
}
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
if (showArgs && iter.hasArgs()) {
|
|
|
|
BindingIter bi(script);
|
|
|
|
bool first = true;
|
|
|
|
for (unsigned i = 0; i < iter.numActualArgs(); i++) {
|
|
|
|
RootedValue arg(cx);
|
|
|
|
if (i < iter.numFormalArgs() && script->formalIsAliased(i)) {
|
|
|
|
for (AliasedFormalIter fi(script); ; fi++) {
|
|
|
|
if (fi.frameIndex() == i) {
|
|
|
|
arg = iter.callObj(cx).aliasedVar(fi);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else if (script->argsObjAliasesFormals() && iter.hasArgsObj()) {
|
|
|
|
arg = iter.argsObj().arg(i);
|
|
|
|
} else {
|
|
|
|
if (iter.hasUsableAbstractFramePtr())
|
|
|
|
arg = iter.unaliasedActual(i, DONT_CHECK_ALIASING);
|
|
|
|
else
|
|
|
|
arg = MagicValue(JS_OPTIMIZED_OUT);
|
|
|
|
}
|
|
|
|
|
|
|
|
JSAutoByteString valueBytes;
|
|
|
|
const char* value = FormatValue(cx, arg, valueBytes);
|
|
|
|
if (!value) {
|
|
|
|
if (cx->isThrowingOutOfMemory())
|
|
|
|
return nullptr;
|
|
|
|
cx->clearPendingException();
|
|
|
|
}
|
|
|
|
|
|
|
|
JSAutoByteString nameBytes;
|
|
|
|
const char* name = nullptr;
|
|
|
|
|
|
|
|
if (i < iter.numFormalArgs()) {
|
|
|
|
MOZ_ASSERT(i == bi.argIndex());
|
|
|
|
name = nameBytes.encodeLatin1(cx, bi->name());
|
|
|
|
if (!name)
|
|
|
|
return nullptr;
|
|
|
|
bi++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (value) {
|
|
|
|
buf = sprintf_append(cx, buf, "%s%s%s%s%s%s",
|
|
|
|
!first ? ", " : "",
|
|
|
|
name ? name :"",
|
|
|
|
name ? " = " : "",
|
|
|
|
arg.isString() ? "\"" : "",
|
|
|
|
value,
|
|
|
|
arg.isString() ? "\"" : "");
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
first = false;
|
|
|
|
} else {
|
|
|
|
buf = sprintf_append(cx, buf,
|
|
|
|
" <Failed to get argument while inspecting stack frame>\n");
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// print filename and line number
|
|
|
|
buf = sprintf_append(cx, buf, "%s [\"%s\":%d]\n",
|
|
|
|
fun ? ")" : "",
|
|
|
|
filename ? filename : "<unknown>",
|
|
|
|
lineno);
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
|
|
|
|
// Note: Right now we don't dump the local variables anymore, because
|
|
|
|
// that is hard to support across all the JITs etc.
|
|
|
|
|
|
|
|
// print the value of 'this'
|
|
|
|
if (showLocals) {
|
|
|
|
if (!thisVal.isUndefined()) {
|
|
|
|
JSAutoByteString thisValBytes;
|
|
|
|
RootedString thisValStr(cx, ToString<CanGC>(cx, thisVal));
|
|
|
|
if (!thisValStr) {
|
|
|
|
if (cx->isThrowingOutOfMemory())
|
|
|
|
return nullptr;
|
|
|
|
cx->clearPendingException();
|
|
|
|
}
|
|
|
|
if (thisValStr) {
|
|
|
|
const char* str = thisValBytes.encodeLatin1(cx, thisValStr);
|
|
|
|
if (!str)
|
|
|
|
return nullptr;
|
|
|
|
buf = sprintf_append(cx, buf, " this = %s\n", str);
|
|
|
|
} else {
|
|
|
|
buf = sprintf_append(cx, buf, " <failed to get 'this' value>\n");
|
|
|
|
}
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (showThisProps && thisVal.isObject()) {
|
|
|
|
RootedObject obj(cx, &thisVal.toObject());
|
|
|
|
|
|
|
|
AutoIdVector keys(cx);
|
|
|
|
if (!GetPropertyKeys(cx, obj, JSITER_OWNONLY, &keys)) {
|
|
|
|
if (cx->isThrowingOutOfMemory())
|
|
|
|
return nullptr;
|
|
|
|
cx->clearPendingException();
|
|
|
|
}
|
|
|
|
|
|
|
|
RootedId id(cx);
|
|
|
|
for (size_t i = 0; i < keys.length(); i++) {
|
|
|
|
RootedId id(cx, keys[i]);
|
|
|
|
RootedValue key(cx, IdToValue(id));
|
|
|
|
RootedValue v(cx);
|
|
|
|
|
|
|
|
if (!GetProperty(cx, obj, obj, id, &v)) {
|
|
|
|
if (cx->isThrowingOutOfMemory())
|
|
|
|
return nullptr;
|
|
|
|
cx->clearPendingException();
|
|
|
|
buf = sprintf_append(cx, buf,
|
|
|
|
" <Failed to fetch property while inspecting stack frame>\n");
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
JSAutoByteString nameBytes;
|
|
|
|
const char* name = FormatValue(cx, key, nameBytes);
|
|
|
|
if (!name) {
|
|
|
|
if (cx->isThrowingOutOfMemory())
|
|
|
|
return nullptr;
|
|
|
|
cx->clearPendingException();
|
|
|
|
}
|
|
|
|
|
|
|
|
JSAutoByteString valueBytes;
|
|
|
|
const char* value = FormatValue(cx, v, valueBytes);
|
|
|
|
if (!value) {
|
|
|
|
if (cx->isThrowingOutOfMemory())
|
|
|
|
return nullptr;
|
|
|
|
cx->clearPendingException();
|
|
|
|
}
|
|
|
|
|
|
|
|
if (name && value) {
|
|
|
|
buf = sprintf_append(cx, buf, " this.%s = %s%s%s\n",
|
|
|
|
name,
|
|
|
|
v.isString() ? "\"" : "",
|
|
|
|
value,
|
|
|
|
v.isString() ? "\"" : "");
|
|
|
|
} else {
|
|
|
|
buf = sprintf_append(cx, buf,
|
|
|
|
" <Failed to format values while inspecting stack frame>\n");
|
|
|
|
}
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
MOZ_ASSERT(!cx->isExceptionPending());
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(char*)
|
|
|
|
JS::FormatStackDump(JSContext* cx, char* buf, bool showArgs, bool showLocals, bool showThisProps)
|
|
|
|
{
|
|
|
|
int num = 0;
|
|
|
|
|
|
|
|
for (AllFramesIter i(cx); !i.done(); ++i) {
|
|
|
|
buf = FormatFrame(cx, i, buf, num, showArgs, showLocals, showThisProps);
|
|
|
|
if (!buf)
|
|
|
|
return nullptr;
|
|
|
|
num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!num)
|
|
|
|
buf = JS_sprintf_append(buf, "JavaScript stack is empty\n");
|
|
|
|
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct DumpHeapTracer : public JS::CallbackTracer, public WeakMapTracer
|
|
|
|
{
|
|
|
|
const char* prefix;
|
|
|
|
FILE* output;
|
|
|
|
|
|
|
|
DumpHeapTracer(FILE* fp, JSRuntime* rt)
|
|
|
|
: JS::CallbackTracer(rt, DoNotTraceWeakMaps),
|
|
|
|
js::WeakMapTracer(rt), prefix(""), output(fp)
|
|
|
|
{}
|
|
|
|
|
|
|
|
private:
|
|
|
|
void trace(JSObject* map, JS::GCCellPtr key, JS::GCCellPtr value) override {
|
|
|
|
JSObject* kdelegate = nullptr;
|
|
|
|
if (key.is<JSObject>())
|
|
|
|
kdelegate = js::GetWeakmapKeyDelegate(&key.as<JSObject>());
|
|
|
|
|
|
|
|
fprintf(output, "WeakMapEntry map=%p key=%p keyDelegate=%p value=%p\n",
|
|
|
|
map, key.asCell(), kdelegate, value.asCell());
|
|
|
|
}
|
|
|
|
|
|
|
|
void onChild(const JS::GCCellPtr& thing) override;
|
|
|
|
};
|
|
|
|
|
|
|
|
static char
|
|
|
|
MarkDescriptor(void* thing)
|
|
|
|
{
|
|
|
|
gc::TenuredCell* cell = gc::TenuredCell::fromPointer(thing);
|
|
|
|
if (cell->isMarked(gc::BLACK))
|
|
|
|
return cell->isMarked(gc::GRAY) ? 'G' : 'B';
|
|
|
|
else
|
|
|
|
return cell->isMarked(gc::GRAY) ? 'X' : 'W';
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
DumpHeapVisitZone(JSRuntime* rt, void* data, Zone* zone)
|
|
|
|
{
|
|
|
|
DumpHeapTracer* dtrc = static_cast<DumpHeapTracer*>(data);
|
|
|
|
fprintf(dtrc->output, "# zone %p\n", (void*)zone);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
DumpHeapVisitCompartment(JSRuntime* rt, void* data, JSCompartment* comp)
|
|
|
|
{
|
|
|
|
char name[1024];
|
|
|
|
if (rt->compartmentNameCallback)
|
|
|
|
(*rt->compartmentNameCallback)(rt, comp, name, sizeof(name));
|
|
|
|
else
|
|
|
|
strcpy(name, "<unknown>");
|
|
|
|
|
|
|
|
DumpHeapTracer* dtrc = static_cast<DumpHeapTracer*>(data);
|
|
|
|
fprintf(dtrc->output, "# compartment %s [in zone %p]\n", name, (void*)comp->zone());
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
DumpHeapVisitArena(JSRuntime* rt, void* data, gc::Arena* arena,
|
|
|
|
JS::TraceKind traceKind, size_t thingSize)
|
|
|
|
{
|
|
|
|
DumpHeapTracer* dtrc = static_cast<DumpHeapTracer*>(data);
|
|
|
|
fprintf(dtrc->output, "# arena allockind=%u size=%u\n",
|
|
|
|
unsigned(arena->aheader.getAllocKind()), unsigned(thingSize));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
DumpHeapVisitCell(JSRuntime* rt, void* data, void* thing,
|
|
|
|
JS::TraceKind traceKind, size_t thingSize)
|
|
|
|
{
|
|
|
|
DumpHeapTracer* dtrc = static_cast<DumpHeapTracer*>(data);
|
|
|
|
char cellDesc[1024 * 32];
|
|
|
|
JS_GetTraceThingInfo(cellDesc, sizeof(cellDesc), dtrc, thing, traceKind, true);
|
|
|
|
fprintf(dtrc->output, "%p %c %s\n", thing, MarkDescriptor(thing), cellDesc);
|
|
|
|
js::TraceChildren(dtrc, thing, traceKind);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
DumpHeapTracer::onChild(const JS::GCCellPtr& thing)
|
|
|
|
{
|
|
|
|
if (gc::IsInsideNursery(thing.asCell()))
|
|
|
|
return;
|
|
|
|
|
|
|
|
char buffer[1024];
|
|
|
|
getTracingEdgeName(buffer, sizeof(buffer));
|
|
|
|
fprintf(output, "%s%p %c %s\n", prefix, thing.asCell(), MarkDescriptor(thing.asCell()), buffer);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
js::DumpHeap(JSRuntime* rt, FILE* fp, js::DumpHeapNurseryBehaviour nurseryBehaviour)
|
|
|
|
{
|
|
|
|
if (nurseryBehaviour == js::CollectNurseryBeforeDump)
|
|
|
|
rt->gc.evictNursery(JS::gcreason::API);
|
|
|
|
|
|
|
|
DumpHeapTracer dtrc(fp, rt);
|
|
|
|
fprintf(dtrc.output, "# Roots.\n");
|
|
|
|
TraceRuntime(&dtrc);
|
|
|
|
|
|
|
|
fprintf(dtrc.output, "# Weak maps.\n");
|
|
|
|
WeakMapBase::traceAllMappings(&dtrc);
|
|
|
|
|
|
|
|
fprintf(dtrc.output, "==========\n");
|
|
|
|
|
|
|
|
dtrc.prefix = "> ";
|
|
|
|
IterateZonesCompartmentsArenasCells(rt, &dtrc,
|
|
|
|
DumpHeapVisitZone,
|
|
|
|
DumpHeapVisitCompartment,
|
|
|
|
DumpHeapVisitArena,
|
|
|
|
DumpHeapVisitCell);
|
|
|
|
|
|
|
|
fflush(dtrc.output);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::ContextHasOutstandingRequests(const JSContext* cx)
|
|
|
|
{
|
|
|
|
return cx->outstandingRequests > 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetActivityCallback(JSRuntime* rt, ActivityCallback cb, void* arg)
|
|
|
|
{
|
|
|
|
rt->activityCallback = cb;
|
|
|
|
rt->activityCallbackArg = arg;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
JS::NotifyDidPaint(JSRuntime* rt)
|
|
|
|
{
|
|
|
|
rt->gc.notifyDidPaint();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
JS::PokeGC(JSRuntime* rt)
|
|
|
|
{
|
|
|
|
rt->gc.poke();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSCompartment*)
|
|
|
|
js::GetAnyCompartmentInZone(JS::Zone* zone)
|
|
|
|
{
|
|
|
|
CompartmentsInZoneIter comp(zone);
|
|
|
|
MOZ_ASSERT(!comp.done());
|
|
|
|
return comp.get();
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
JS::ObjectPtr::updateWeakPointerAfterGC()
|
|
|
|
{
|
|
|
|
if (js::gc::IsAboutToBeFinalizedUnbarriered(value.unsafeGet()))
|
|
|
|
value = nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
JS::ObjectPtr::trace(JSTracer* trc, const char* name)
|
|
|
|
{
|
|
|
|
JS_CallObjectTracer(trc, &value, name);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSObject*)
|
|
|
|
js::GetTestingFunctions(JSContext* cx)
|
|
|
|
{
|
|
|
|
RootedObject obj(cx, JS_NewPlainObject(cx));
|
|
|
|
if (!obj)
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
if (!DefineTestingFunctions(cx, obj, false, false))
|
|
|
|
return nullptr;
|
|
|
|
|
|
|
|
return obj;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
JS_FRIEND_API(unsigned)
|
|
|
|
js::GetEnterCompartmentDepth(JSContext* cx)
|
|
|
|
{
|
|
|
|
return cx->getEnterCompartmentDepth();
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetDOMCallbacks(JSRuntime* rt, const DOMCallbacks* callbacks)
|
|
|
|
{
|
|
|
|
rt->DOMcallbacks = callbacks;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(const DOMCallbacks*)
|
|
|
|
js::GetDOMCallbacks(JSRuntime* rt)
|
|
|
|
{
|
|
|
|
return rt->DOMcallbacks;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const void* gDOMProxyHandlerFamily = nullptr;
|
|
|
|
static uint32_t gDOMProxyExpandoSlot = 0;
|
|
|
|
static DOMProxyShadowsCheck gDOMProxyShadowsCheck;
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetDOMProxyInformation(const void* domProxyHandlerFamily, uint32_t domProxyExpandoSlot,
|
|
|
|
DOMProxyShadowsCheck domProxyShadowsCheck)
|
|
|
|
{
|
|
|
|
gDOMProxyHandlerFamily = domProxyHandlerFamily;
|
|
|
|
gDOMProxyExpandoSlot = domProxyExpandoSlot;
|
|
|
|
gDOMProxyShadowsCheck = domProxyShadowsCheck;
|
|
|
|
}
|
|
|
|
|
|
|
|
const void*
|
|
|
|
js::GetDOMProxyHandlerFamily()
|
|
|
|
{
|
|
|
|
return gDOMProxyHandlerFamily;
|
|
|
|
}
|
|
|
|
|
|
|
|
uint32_t
|
|
|
|
js::GetDOMProxyExpandoSlot()
|
|
|
|
{
|
|
|
|
return gDOMProxyExpandoSlot;
|
|
|
|
}
|
|
|
|
|
|
|
|
DOMProxyShadowsCheck
|
|
|
|
js::GetDOMProxyShadowsCheck()
|
|
|
|
{
|
|
|
|
return gDOMProxyShadowsCheck;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool
|
|
|
|
js::detail::IdMatchesAtom(jsid id, JSAtom* atom)
|
|
|
|
{
|
|
|
|
return id == INTERNED_STRING_TO_JSID(nullptr, atom);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::PrepareScriptEnvironmentAndInvoke(JSContext* cx, HandleObject scope, ScriptEnvironmentPreparer::Closure& closure)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(!cx->isExceptionPending());
|
|
|
|
|
|
|
|
if (cx->runtime()->scriptEnvironmentPreparer) {
|
|
|
|
cx->runtime()->scriptEnvironmentPreparer->invoke(scope, closure);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
JSAutoCompartment ac(cx, scope);
|
|
|
|
bool ok = closure(cx);
|
|
|
|
|
|
|
|
MOZ_ASSERT_IF(ok, !cx->isExceptionPending());
|
|
|
|
|
|
|
|
// NB: This does not affect Gecko, which has a prepareScriptEnvironment
|
|
|
|
// callback.
|
|
|
|
if (!ok) {
|
|
|
|
JS_ReportPendingException(cx);
|
|
|
|
}
|
|
|
|
|
|
|
|
MOZ_ASSERT(!cx->isExceptionPending());
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetScriptEnvironmentPreparer(JSRuntime* rt, ScriptEnvironmentPreparer* preparer)
|
|
|
|
{
|
|
|
|
rt->scriptEnvironmentPreparer = preparer;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::Debug_SetActiveJSContext(JSRuntime* rt, JSContext* cx)
|
|
|
|
{
|
|
|
|
rt->activeContext = cx;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetCTypesActivityCallback(JSRuntime* rt, CTypesActivityCallback cb)
|
|
|
|
{
|
|
|
|
rt->ctypesActivityCallback = cb;
|
|
|
|
}
|
|
|
|
|
|
|
|
js::AutoCTypesActivityCallback::AutoCTypesActivityCallback(JSContext* cx,
|
|
|
|
js::CTypesActivityType beginType,
|
|
|
|
js::CTypesActivityType endType
|
|
|
|
MOZ_GUARD_OBJECT_NOTIFIER_PARAM_IN_IMPL)
|
|
|
|
: cx(cx), callback(cx->runtime()->ctypesActivityCallback), endType(endType)
|
|
|
|
{
|
|
|
|
MOZ_GUARD_OBJECT_NOTIFIER_INIT;
|
|
|
|
|
|
|
|
if (callback)
|
|
|
|
callback(cx, beginType);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetObjectMetadataCallback(JSContext* cx, ObjectMetadataCallback callback)
|
|
|
|
{
|
|
|
|
cx->compartment()->setObjectMetadataCallback(callback);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSObject*)
|
|
|
|
js::GetObjectMetadata(JSObject* obj)
|
|
|
|
{
|
|
|
|
ObjectWeakMap* map = obj->compartment()->objectMetadataTable;
|
|
|
|
if (map)
|
|
|
|
return map->lookup(obj);
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::ReportIsNotFunction(JSContext* cx, HandleValue v)
|
|
|
|
{
|
|
|
|
return ReportIsNotFunction(cx, v, -1);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::ReportErrorWithId(JSContext* cx, const char* msg, HandleId id)
|
|
|
|
{
|
|
|
|
RootedValue idv(cx);
|
|
|
|
if (!JS_IdToValue(cx, id, &idv))
|
|
|
|
return;
|
|
|
|
JSString* idstr = JS::ToString(cx, idv);
|
|
|
|
if (!idstr)
|
|
|
|
return;
|
|
|
|
JSAutoByteString bytes(cx, idstr);
|
|
|
|
if (!bytes)
|
|
|
|
return;
|
|
|
|
JS_ReportError(cx, msg, bytes.ptr());
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
bool
|
|
|
|
js::HasObjectMovedOp(JSObject* obj) {
|
|
|
|
return !!GetObjectClass(obj)->ext.objectMovedOp;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
JS_StoreObjectPostBarrierCallback(JSContext* cx,
|
|
|
|
void (*callback)(JSTracer* trc, JSObject* key, void* data),
|
|
|
|
JSObject* key, void* data)
|
|
|
|
{
|
|
|
|
JSRuntime* rt = cx->runtime();
|
|
|
|
if (IsInsideNursery(key))
|
|
|
|
rt->gc.storeBuffer.putCallback(callback, key, data);
|
|
|
|
}
|
|
|
|
|
|
|
|
extern JS_FRIEND_API(void)
|
|
|
|
JS_StoreStringPostBarrierCallback(JSContext* cx,
|
|
|
|
void (*callback)(JSTracer* trc, JSString* key, void* data),
|
|
|
|
JSString* key, void* data)
|
|
|
|
{
|
|
|
|
JSRuntime* rt = cx->runtime();
|
|
|
|
if (IsInsideNursery(key))
|
|
|
|
rt->gc.storeBuffer.putCallback(callback, key, data);
|
|
|
|
}
|
|
|
|
|
|
|
|
extern JS_FRIEND_API(void)
|
|
|
|
JS_ClearAllPostBarrierCallbacks(JSRuntime* rt)
|
|
|
|
{
|
|
|
|
rt->gc.clearPostBarrierCallbacks();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::ForwardToNative(JSContext* cx, JSNative native, const CallArgs& args)
|
|
|
|
{
|
|
|
|
return native(cx, args.length(), args.base());
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSObject*)
|
|
|
|
js::ConvertArgsToArray(JSContext* cx, const CallArgs& args)
|
|
|
|
{
|
|
|
|
RootedObject argsArray(cx, NewDenseCopiedArray(cx, args.length(), args.array()));
|
|
|
|
return argsArray;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSAtom*)
|
|
|
|
js::GetPropertyNameFromPC(JSScript* script, jsbytecode* pc)
|
|
|
|
{
|
|
|
|
if (!IsGetPropPC(pc) && !IsSetPropPC(pc))
|
|
|
|
return nullptr;
|
|
|
|
return script->getName(pc);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetWindowProxyClass(JSRuntime* rt, const js::Class* clasp)
|
|
|
|
{
|
|
|
|
MOZ_ASSERT(!rt->maybeWindowProxyClass());
|
|
|
|
rt->setWindowProxyClass(clasp);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(void)
|
|
|
|
js::SetWindowProxy(JSContext* cx, HandleObject global, HandleObject windowProxy)
|
|
|
|
{
|
|
|
|
AssertHeapIsIdle(cx);
|
|
|
|
CHECK_REQUEST(cx);
|
|
|
|
|
|
|
|
assertSameCompartment(cx, global, windowProxy);
|
|
|
|
|
|
|
|
MOZ_ASSERT(IsWindowProxy(windowProxy));
|
|
|
|
global->as<GlobalObject>().setWindowProxy(windowProxy);
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSObject*)
|
|
|
|
js::ToWindowIfWindowProxy(JSObject* obj)
|
|
|
|
{
|
|
|
|
if (IsWindowProxy(obj))
|
|
|
|
return &obj->global();
|
|
|
|
return obj;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(JSObject*)
|
|
|
|
js::ToWindowProxyIfWindow(JSObject* obj)
|
|
|
|
{
|
|
|
|
if (IsWindow(obj))
|
|
|
|
return obj->as<GlobalObject>().windowProxy();
|
|
|
|
return obj;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::IsWindowProxy(JSObject* obj)
|
|
|
|
{
|
|
|
|
// Note: simply checking `obj == obj->global().windowProxy()` is not
|
|
|
|
// sufficient: we may have transplanted the window proxy with a CCW.
|
|
|
|
// Check the Class to ensure we really have a window proxy.
|
|
|
|
return obj->getClass() == obj->runtimeFromAnyThread()->maybeWindowProxyClass();
|
|
|
|
}
|
|
|
|
|
|
|
|
JS_FRIEND_API(bool)
|
|
|
|
js::detail::IsWindowSlow(JSObject* obj)
|
|
|
|
{
|
|
|
|
return obj->as<GlobalObject>().maybeWindowProxy();
|
|
|
|
}
|