/* * Copyright (C) 2016 Canon Inc. * Copyright (C) 2016-2017 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted, provided that the following conditions * are required to be met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Canon Inc. nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY CANON INC. AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL CANON INC. AND ITS CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "ReadableStreamDefaultController.h" #if ENABLE(STREAMS_API) #include "WebCoreJSClientData.h" #include <JavaScriptCore/CatchScope.h> #include <JavaScriptCore/HeapInlines.h> #include <JavaScriptCore/IdentifierInlines.h> #include <JavaScriptCore/JSObjectInlines.h> namespace WebCore { static inline JSC::JSValue callFunction(JSC::ExecState& state, JSC::JSValue jsFunction, JSC::JSValue thisValue, const JSC::ArgList& arguments) { JSC::CallData callData; auto callType = JSC::getCallData(state.vm(), jsFunction, callData); return call(&state, jsFunction, callType, callData, thisValue, arguments); } JSC::JSValue ReadableStreamDefaultController::invoke(JSC::ExecState& state, JSC::JSObject& object, const char* propertyName, JSC::JSValue parameter) { JSC::VM& vm = state.vm(); JSC::JSLockHolder lock(vm); auto scope = DECLARE_THROW_SCOPE(vm); auto function = object.get(&state, JSC::Identifier::fromString(&state, propertyName)); RETURN_IF_EXCEPTION(scope, JSC::JSValue()); if (!function.isFunction(vm)) { if (!function.isUndefined()) throwTypeError(&state, scope, "ReadableStream trying to call a property that is not callable"_s); return JSC::jsUndefined(); } JSC::MarkedArgumentBuffer arguments; arguments.append(parameter); ASSERT(!arguments.hasOverflowed()); return callFunction(state, function, &object, arguments); } } // namespace WebCore #endif // ENABLE(STREAMS_API)