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/*
* Copyright (C) 2016 Canon Inc.
* Copyright (C) 2016 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(READABLE_STREAM_API)
#include "WebCoreJSClientData.h"
#include <heap/HeapInlines.h>
#include <runtime/IdentifierInlines.h>
#include <runtime/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(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()) {
if (!function.isUndefined())
throwTypeError(&state, scope, ASCIILiteral("ReadableStream trying to call a property that is not callable"));
return JSC::jsUndefined();
}
JSC::MarkedArgumentBuffer arguments;
arguments.append(parameter);
return callFunction(state, function, &object, arguments);
}
bool ReadableStreamDefaultController::isControlledReadableStreamLocked() const
{
auto& globalObject = this->globalObject();
JSC::VM& vm = globalObject.vm();
JSC::JSLockHolder lock(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
auto& state = globalExec();
auto& clientData = *static_cast<JSVMClientData*>(vm.clientData);
auto readableStream = m_jsController->get(&state, clientData.builtinNames().controlledReadableStreamPrivateName());
ASSERT_UNUSED(scope, !scope.exception());
auto* isLocked = globalObject.builtinInternalFunctions().readableStreamInternals().m_isReadableStreamLockedFunction.get();
ASSERT(isLocked);
JSC::MarkedArgumentBuffer arguments;
arguments.append(readableStream);
auto result = callFunction(state, isLocked, JSC::jsUndefined(), arguments);
ASSERT(!scope.exception());
return result.isTrue();
}
} // namespace WebCore
#endif // ENABLE(READABLE_STREAM_API)
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