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* Copyright (C) 2019 Apple Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "JSDOMSetLike.h"
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#include "WebCoreJSClientData.h"
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#include <JavaScriptCore/CatchScope.h>
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#include <JavaScriptCore/JSSet.h>
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void DOMSetAdapter::clear()
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clearBackingSet(m_lexicalGlobalObject, m_backingSet);
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std::pair<bool, std::reference_wrapper<JSC::JSObject>> getBackingSet(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSObject& setLike)
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auto& vm = lexicalGlobalObject.vm();
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auto backingSet = setLike.get(&lexicalGlobalObject, static_cast<JSVMClientData*>(vm.clientData)->builtinNames().backingSetPrivateName());
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if (backingSet.isUndefined()) {
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auto& vm = lexicalGlobalObject.vm();
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auto scope = DECLARE_CATCH_SCOPE(vm);
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backingSet = JSC::JSSet::create(&lexicalGlobalObject, vm, lexicalGlobalObject.setStructure());
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scope.releaseAssertNoException();
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setLike.putDirect(vm, static_cast<JSVMClientData*>(vm.clientData)->builtinNames().backingSetPrivateName(), backingSet, static_cast<unsigned>(JSC::PropertyAttribute::DontEnum));
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return { true, *JSC::asObject(backingSet) };
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return { false, *JSC::asObject(backingSet) };
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void clearBackingSet(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSObject& backingSet)
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auto& vm = JSC::getVM(&lexicalGlobalObject);
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JSC::JSValue function = backingSet.get(&lexicalGlobalObject, vm.propertyNames->clear);
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ASSERT(!function.isUndefined());
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JSC::CallData callData;
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JSC::CallType callType = JSC::getCallData(vm, function, callData);
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ASSERT(callType != JSC::CallType::None);
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JSC::MarkedArgumentBuffer arguments;
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JSC::call(&lexicalGlobalObject, function, callType, callData, &backingSet, arguments);
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void addToBackingSet(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSObject& backingSet, JSC::JSValue item)
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auto& vm = JSC::getVM(&lexicalGlobalObject);
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JSC::JSValue function = backingSet.get(&lexicalGlobalObject, vm.propertyNames->add);
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ASSERT(!function.isUndefined());
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JSC::CallData callData;
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JSC::CallType callType = JSC::getCallData(vm, function, callData);
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ASSERT(callType != JSC::CallType::None);
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JSC::MarkedArgumentBuffer arguments;
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arguments.append(item);
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JSC::call(&lexicalGlobalObject, function, callType, callData, &backingSet, arguments);
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JSC::JSValue forwardAttributeGetterToBackingSet(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSObject& backingSet, const JSC::Identifier& attributeName)
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return backingSet.get(&lexicalGlobalObject, attributeName);
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JSC::JSValue forwardFunctionCallToBackingSet(JSC::JSGlobalObject& lexicalGlobalObject, JSC::CallFrame& callFrame, JSC::JSObject& backingSet, const JSC::Identifier& functionName)
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JSC::JSValue function = backingSet.get(&lexicalGlobalObject, functionName);
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ASSERT(!function.isUndefined());
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JSC::CallData callData;
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JSC::CallType callType = JSC::getCallData(lexicalGlobalObject.vm(), function, callData);
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ASSERT(callType != JSC::CallType::None);
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JSC::MarkedArgumentBuffer arguments;
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for (size_t cptr = 0; cptr < callFrame.argumentCount(); ++cptr)
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arguments.append(callFrame.uncheckedArgument(cptr));
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ASSERT(!arguments.hasOverflowed());
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return JSC::call(&lexicalGlobalObject, function, callType, callData, &backingSet, arguments);
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JSC::JSValue forwardForEachCallToBackingSet(JSDOMGlobalObject& globalObject, JSC::CallFrame& callFrame, JSC::JSObject& setLike)
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auto result = getBackingSet(globalObject, setLike);
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ASSERT(!result.first);
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auto* function = globalObject.builtinInternalFunctions().jsDOMBindingInternals().m_forEachWrapperFunction.get();
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JSC::CallData callData;
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JSC::CallType callType = JSC::getCallData(globalObject.vm(), function, callData);
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ASSERT(callType != JSC::CallType::None);
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JSC::MarkedArgumentBuffer arguments;
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arguments.append(&result.second.get());
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for (size_t cptr = 0; cptr < callFrame.argumentCount(); ++cptr)
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arguments.append(callFrame.uncheckedArgument(cptr));
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ASSERT(!arguments.hasOverflowed());
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return JSC::call(&globalObject, function, callType, callData, &setLike, arguments);