1/*
2 This file is part of the WebKit open source project.
3 This file has been generated by generate-bindings.pl. DO NOT MODIFY!
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public License
16 along with this library; see the file COPYING.LIB. If not, write to
17 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
19*/
20
21#include "config.h"
22#include "JSWorker.h"
23
24#include "EventNames.h"
25#include "JSDOMAttribute.h"
26#include "JSDOMBinding.h"
27#include "JSDOMConstructor.h"
28#include "JSDOMConvertAny.h"
29#include "JSDOMConvertInterface.h"
30#include "JSDOMConvertObject.h"
31#include "JSDOMConvertSequences.h"
32#include "JSDOMConvertStrings.h"
33#include "JSDOMExceptionHandling.h"
34#include "JSDOMOperation.h"
35#include "JSDOMWrapperCache.h"
36#include "JSEventListener.h"
37#include "ScriptExecutionContext.h"
38#include <JavaScriptCore/HeapSnapshotBuilder.h>
39#include <JavaScriptCore/JSArray.h>
40#include <JavaScriptCore/JSCInlines.h>
41#include <wtf/GetPtr.h>
42#include <wtf/PointerPreparations.h>
43#include <wtf/URL.h>
44
45
46namespace WebCore {
47using namespace JSC;
48
49template<> Worker::Options convertDictionary<Worker::Options>(ExecState& state, JSValue value)
50{
51 VM& vm = state.vm();
52 auto throwScope = DECLARE_THROW_SCOPE(vm);
53 bool isNullOrUndefined = value.isUndefinedOrNull();
54 auto* object = isNullOrUndefined ? nullptr : value.getObject();
55 if (UNLIKELY(!isNullOrUndefined && !object)) {
56 throwTypeError(&state, throwScope);
57 return { };
58 }
59 Worker::Options result;
60 JSValue nameValue;
61 if (isNullOrUndefined)
62 nameValue = jsUndefined();
63 else {
64 nameValue = object->get(&state, Identifier::fromString(&state, "name"));
65 RETURN_IF_EXCEPTION(throwScope, { });
66 }
67 if (!nameValue.isUndefined()) {
68 result.name = convert<IDLDOMString>(state, nameValue);
69 RETURN_IF_EXCEPTION(throwScope, { });
70 } else
71 result.name = emptyString();
72 return result;
73}
74
75// Functions
76
77JSC::EncodedJSValue JSC_HOST_CALL jsWorkerPrototypeFunctionTerminate(JSC::ExecState*);
78JSC::EncodedJSValue JSC_HOST_CALL jsWorkerPrototypeFunctionPostMessage(JSC::ExecState*);
79
80// Attributes
81
82JSC::EncodedJSValue jsWorkerConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
83bool setJSWorkerConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
84JSC::EncodedJSValue jsWorkerOnmessage(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
85bool setJSWorkerOnmessage(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
86JSC::EncodedJSValue jsWorkerOnerror(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
87bool setJSWorkerOnerror(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
88
89class JSWorkerPrototype : public JSC::JSNonFinalObject {
90public:
91 using Base = JSC::JSNonFinalObject;
92 static JSWorkerPrototype* create(JSC::VM& vm, JSDOMGlobalObject* globalObject, JSC::Structure* structure)
93 {
94 JSWorkerPrototype* ptr = new (NotNull, JSC::allocateCell<JSWorkerPrototype>(vm.heap)) JSWorkerPrototype(vm, globalObject, structure);
95 ptr->finishCreation(vm);
96 return ptr;
97 }
98
99 DECLARE_INFO;
100 static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
101 {
102 return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
103 }
104
105private:
106 JSWorkerPrototype(JSC::VM& vm, JSC::JSGlobalObject*, JSC::Structure* structure)
107 : JSC::JSNonFinalObject(vm, structure)
108 {
109 }
110
111 void finishCreation(JSC::VM&);
112};
113
114using JSWorkerConstructor = JSDOMConstructor<JSWorker>;
115
116template<> EncodedJSValue JSC_HOST_CALL JSWorkerConstructor::construct(ExecState* state)
117{
118 VM& vm = state->vm();
119 auto throwScope = DECLARE_THROW_SCOPE(vm);
120 UNUSED_PARAM(throwScope);
121 auto* castedThis = jsCast<JSWorkerConstructor*>(state->jsCallee());
122 ASSERT(castedThis);
123 if (UNLIKELY(state->argumentCount() < 1))
124 return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
125 auto* context = castedThis->scriptExecutionContext();
126 if (UNLIKELY(!context))
127 return throwConstructorScriptExecutionContextUnavailableError(*state, throwScope, "Worker");
128 auto scriptUrl = convert<IDLUSVString>(*state, state->uncheckedArgument(0));
129 RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
130 auto options = convert<IDLDictionary<Worker::Options>>(*state, state->argument(1));
131 RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
132 auto object = Worker::create(*context, castedThis->globalObject()->runtimeFlags(), WTFMove(scriptUrl), WTFMove(options));
133 return JSValue::encode(toJSNewlyCreated<IDLInterface<Worker>>(*state, *castedThis->globalObject(), throwScope, WTFMove(object)));
134}
135
136template<> JSValue JSWorkerConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
137{
138 return JSEventTarget::getConstructor(vm, &globalObject);
139}
140
141template<> void JSWorkerConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject)
142{
143 putDirect(vm, vm.propertyNames->prototype, JSWorker::prototype(vm, globalObject), JSC::PropertyAttribute::DontDelete | JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum);
144 putDirect(vm, vm.propertyNames->name, jsNontrivialString(&vm, String("Worker"_s)), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum);
145 putDirect(vm, vm.propertyNames->length, jsNumber(1), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum);
146}
147
148template<> const ClassInfo JSWorkerConstructor::s_info = { "Worker", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSWorkerConstructor) };
149
150/* Hash table for prototype */
151
152static const HashTableValue JSWorkerPrototypeTableValues[] =
153{
154 { "constructor", static_cast<unsigned>(JSC::PropertyAttribute::DontEnum), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsWorkerConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSWorkerConstructor) } },
155 { "onmessage", static_cast<unsigned>(JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsWorkerOnmessage), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSWorkerOnmessage) } },
156 { "onerror", static_cast<unsigned>(JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsWorkerOnerror), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSWorkerOnerror) } },
157 { "terminate", static_cast<unsigned>(JSC::PropertyAttribute::Function), NoIntrinsic, { (intptr_t)static_cast<RawNativeFunction>(jsWorkerPrototypeFunctionTerminate), (intptr_t) (0) } },
158 { "postMessage", static_cast<unsigned>(JSC::PropertyAttribute::Function), NoIntrinsic, { (intptr_t)static_cast<RawNativeFunction>(jsWorkerPrototypeFunctionPostMessage), (intptr_t) (1) } },
159};
160
161const ClassInfo JSWorkerPrototype::s_info = { "WorkerPrototype", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSWorkerPrototype) };
162
163void JSWorkerPrototype::finishCreation(VM& vm)
164{
165 Base::finishCreation(vm);
166 reifyStaticProperties(vm, JSWorker::info(), JSWorkerPrototypeTableValues, *this);
167}
168
169const ClassInfo JSWorker::s_info = { "Worker", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSWorker) };
170
171JSWorker::JSWorker(Structure* structure, JSDOMGlobalObject& globalObject, Ref<Worker>&& impl)
172 : JSEventTarget(structure, globalObject, WTFMove(impl))
173{
174}
175
176void JSWorker::finishCreation(VM& vm)
177{
178 Base::finishCreation(vm);
179 ASSERT(inherits(vm, info()));
180
181}
182
183JSObject* JSWorker::createPrototype(VM& vm, JSDOMGlobalObject& globalObject)
184{
185 return JSWorkerPrototype::create(vm, &globalObject, JSWorkerPrototype::createStructure(vm, &globalObject, JSEventTarget::prototype(vm, globalObject)));
186}
187
188JSObject* JSWorker::prototype(VM& vm, JSDOMGlobalObject& globalObject)
189{
190 return getDOMPrototype<JSWorker>(vm, globalObject);
191}
192
193JSValue JSWorker::getConstructor(VM& vm, const JSGlobalObject* globalObject)
194{
195 return getDOMConstructor<JSWorkerConstructor>(vm, *jsCast<const JSDOMGlobalObject*>(globalObject));
196}
197
198template<> inline JSWorker* IDLAttribute<JSWorker>::cast(ExecState& state, EncodedJSValue thisValue)
199{
200 return jsDynamicCast<JSWorker*>(state.vm(), JSValue::decode(thisValue));
201}
202
203template<> inline JSWorker* IDLOperation<JSWorker>::cast(ExecState& state)
204{
205 return jsDynamicCast<JSWorker*>(state.vm(), state.thisValue());
206}
207
208EncodedJSValue jsWorkerConstructor(ExecState* state, EncodedJSValue thisValue, PropertyName)
209{
210 VM& vm = state->vm();
211 auto throwScope = DECLARE_THROW_SCOPE(vm);
212 auto* prototype = jsDynamicCast<JSWorkerPrototype*>(vm, JSValue::decode(thisValue));
213 if (UNLIKELY(!prototype))
214 return throwVMTypeError(state, throwScope);
215 return JSValue::encode(JSWorker::getConstructor(state->vm(), prototype->globalObject()));
216}
217
218bool setJSWorkerConstructor(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
219{
220 VM& vm = state->vm();
221 auto throwScope = DECLARE_THROW_SCOPE(vm);
222 auto* prototype = jsDynamicCast<JSWorkerPrototype*>(vm, JSValue::decode(thisValue));
223 if (UNLIKELY(!prototype)) {
224 throwVMTypeError(state, throwScope);
225 return false;
226 }
227 // Shadowing a built-in constructor
228 return prototype->putDirect(vm, vm.propertyNames->constructor, JSValue::decode(encodedValue));
229}
230
231static inline JSValue jsWorkerOnmessageGetter(ExecState& state, JSWorker& thisObject, ThrowScope& throwScope)
232{
233 UNUSED_PARAM(throwScope);
234 UNUSED_PARAM(state);
235 return eventHandlerAttribute(thisObject.wrapped(), eventNames().messageEvent, worldForDOMObject(thisObject));
236}
237
238EncodedJSValue jsWorkerOnmessage(ExecState* state, EncodedJSValue thisValue, PropertyName)
239{
240 return IDLAttribute<JSWorker>::get<jsWorkerOnmessageGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "onmessage");
241}
242
243static inline bool setJSWorkerOnmessageSetter(ExecState& state, JSWorker& thisObject, JSValue value, ThrowScope& throwScope)
244{
245 UNUSED_PARAM(throwScope);
246 setEventHandlerAttribute(state, thisObject, thisObject.wrapped(), eventNames().messageEvent, value);
247 return true;
248}
249
250bool setJSWorkerOnmessage(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
251{
252 return IDLAttribute<JSWorker>::set<setJSWorkerOnmessageSetter>(*state, thisValue, encodedValue, "onmessage");
253}
254
255static inline JSValue jsWorkerOnerrorGetter(ExecState& state, JSWorker& thisObject, ThrowScope& throwScope)
256{
257 UNUSED_PARAM(throwScope);
258 UNUSED_PARAM(state);
259 return eventHandlerAttribute(thisObject.wrapped(), eventNames().errorEvent, worldForDOMObject(thisObject));
260}
261
262EncodedJSValue jsWorkerOnerror(ExecState* state, EncodedJSValue thisValue, PropertyName)
263{
264 return IDLAttribute<JSWorker>::get<jsWorkerOnerrorGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "onerror");
265}
266
267static inline bool setJSWorkerOnerrorSetter(ExecState& state, JSWorker& thisObject, JSValue value, ThrowScope& throwScope)
268{
269 UNUSED_PARAM(throwScope);
270 setEventHandlerAttribute(state, thisObject, thisObject.wrapped(), eventNames().errorEvent, value);
271 return true;
272}
273
274bool setJSWorkerOnerror(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
275{
276 return IDLAttribute<JSWorker>::set<setJSWorkerOnerrorSetter>(*state, thisValue, encodedValue, "onerror");
277}
278
279static inline JSC::EncodedJSValue jsWorkerPrototypeFunctionTerminateBody(JSC::ExecState* state, typename IDLOperation<JSWorker>::ClassParameter castedThis, JSC::ThrowScope& throwScope)
280{
281 UNUSED_PARAM(state);
282 UNUSED_PARAM(throwScope);
283 auto& impl = castedThis->wrapped();
284 impl.terminate();
285 return JSValue::encode(jsUndefined());
286}
287
288EncodedJSValue JSC_HOST_CALL jsWorkerPrototypeFunctionTerminate(ExecState* state)
289{
290 return IDLOperation<JSWorker>::call<jsWorkerPrototypeFunctionTerminateBody>(*state, "terminate");
291}
292
293static inline JSC::EncodedJSValue jsWorkerPrototypeFunctionPostMessageBody(JSC::ExecState* state, typename IDLOperation<JSWorker>::ClassParameter castedThis, JSC::ThrowScope& throwScope)
294{
295 UNUSED_PARAM(state);
296 UNUSED_PARAM(throwScope);
297 auto& impl = castedThis->wrapped();
298 if (UNLIKELY(state->argumentCount() < 1))
299 return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
300 auto message = convert<IDLAny>(*state, state->uncheckedArgument(0));
301 RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
302 auto transfer = state->argument(1).isUndefined() ? Converter<IDLSequence<IDLObject>>::ReturnType{ } : convert<IDLSequence<IDLObject>>(*state, state->uncheckedArgument(1));
303 RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
304 propagateException(*state, throwScope, impl.postMessage(*state, WTFMove(message), WTFMove(transfer)));
305 return JSValue::encode(jsUndefined());
306}
307
308EncodedJSValue JSC_HOST_CALL jsWorkerPrototypeFunctionPostMessage(ExecState* state)
309{
310 return IDLOperation<JSWorker>::call<jsWorkerPrototypeFunctionPostMessageBody>(*state, "postMessage");
311}
312
313void JSWorker::heapSnapshot(JSCell* cell, HeapSnapshotBuilder& builder)
314{
315 auto* thisObject = jsCast<JSWorker*>(cell);
316 builder.setWrappedObjectForCell(cell, &thisObject->wrapped());
317 if (thisObject->scriptExecutionContext())
318 builder.setLabelForCell(cell, "url " + thisObject->scriptExecutionContext()->url().string());
319 Base::heapSnapshot(cell, builder);
320}
321
322bool JSWorkerOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor, const char** reason)
323{
324 auto* jsWorker = jsCast<JSWorker*>(handle.slot()->asCell());
325 if (jsWorker->wrapped().hasPendingActivity()) {
326 if (UNLIKELY(reason))
327 *reason = "ActiveDOMObject with pending activity";
328 return true;
329 }
330 if (jsWorker->wrapped().isFiringEventListeners()) {
331 if (UNLIKELY(reason))
332 *reason = "EventTarget firing event listeners";
333 return true;
334 }
335 UNUSED_PARAM(visitor);
336 UNUSED_PARAM(reason);
337 return false;
338}
339
340void JSWorkerOwner::finalize(JSC::Handle<JSC::Unknown> handle, void* context)
341{
342 auto* jsWorker = static_cast<JSWorker*>(handle.slot()->asCell());
343 auto& world = *static_cast<DOMWrapperWorld*>(context);
344 uncacheWrapper(world, &jsWorker->wrapped(), jsWorker);
345}
346
347#if ENABLE(BINDING_INTEGRITY)
348#if PLATFORM(WIN)
349#pragma warning(disable: 4483)
350extern "C" { extern void (*const __identifier("??_7Worker@WebCore@@6B@")[])(); }
351#else
352extern "C" { extern void* _ZTVN7WebCore6WorkerE[]; }
353#endif
354#endif
355
356JSC::JSValue toJSNewlyCreated(JSC::ExecState*, JSDOMGlobalObject* globalObject, Ref<Worker>&& impl)
357{
358
359#if ENABLE(BINDING_INTEGRITY)
360 void* actualVTablePointer = *(reinterpret_cast<void**>(impl.ptr()));
361#if PLATFORM(WIN)
362 void* expectedVTablePointer = WTF_PREPARE_VTBL_POINTER_FOR_INSPECTION(__identifier("??_7Worker@WebCore@@6B@"));
363#else
364 void* expectedVTablePointer = WTF_PREPARE_VTBL_POINTER_FOR_INSPECTION(&_ZTVN7WebCore6WorkerE[2]);
365#endif
366
367 // If this fails Worker does not have a vtable, so you need to add the
368 // ImplementationLacksVTable attribute to the interface definition
369 static_assert(std::is_polymorphic<Worker>::value, "Worker is not polymorphic");
370
371 // If you hit this assertion you either have a use after free bug, or
372 // Worker has subclasses. If Worker has subclasses that get passed
373 // to toJS() we currently require Worker you to opt out of binding hardening
374 // by adding the SkipVTableValidation attribute to the interface IDL definition
375 RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer);
376#endif
377 return createWrapper<Worker>(globalObject, WTFMove(impl));
378}
379
380JSC::JSValue toJS(JSC::ExecState* state, JSDOMGlobalObject* globalObject, Worker& impl)
381{
382 return wrap(state, globalObject, impl);
383}
384
385Worker* JSWorker::toWrapped(JSC::VM& vm, JSC::JSValue value)
386{
387 if (auto* wrapper = jsDynamicCast<JSWorker*>(vm, value))
388 return &wrapper->wrapped();
389 return nullptr;
390}
391
392}
393