| /* |
| * Copyright (C) 2013-2017 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 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR |
| * 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 "SetConstructor.h" |
| |
| #include "Error.h" |
| #include "GetterSetter.h" |
| #include "IteratorOperations.h" |
| #include "JSCInlines.h" |
| #include "JSGlobalObject.h" |
| #include "JSObjectInlines.h" |
| #include "JSSet.h" |
| #include "SetPrototype.h" |
| |
| namespace JSC { |
| |
| const ClassInfo SetConstructor::s_info = { "Function", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(SetConstructor) }; |
| |
| void SetConstructor::finishCreation(VM& vm, SetPrototype* setPrototype, GetterSetter* speciesSymbol) |
| { |
| Base::finishCreation(vm, vm.propertyNames->Set.string(), NameVisibility::Visible, NameAdditionMode::WithoutStructureTransition); |
| putDirectWithoutTransition(vm, vm.propertyNames->prototype, setPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly); |
| putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly); |
| putDirectNonIndexAccessorWithoutTransition(vm, vm.propertyNames->speciesSymbol, speciesSymbol, PropertyAttribute::Accessor | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum); |
| } |
| |
| static EncodedJSValue JSC_HOST_CALL callSet(ExecState*); |
| static EncodedJSValue JSC_HOST_CALL constructSet(ExecState*); |
| |
| SetConstructor::SetConstructor(VM& vm, Structure* structure) |
| : Base(vm, structure, callSet, constructSet) |
| { |
| } |
| |
| static EncodedJSValue JSC_HOST_CALL callSet(ExecState* exec) |
| { |
| VM& vm = exec->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(exec, scope, "Set")); |
| } |
| |
| static EncodedJSValue JSC_HOST_CALL constructSet(ExecState* exec) |
| { |
| VM& vm = exec->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| JSGlobalObject* globalObject = jsCast<InternalFunction*>(exec->jsCallee())->globalObject(vm); |
| Structure* setStructure = InternalFunction::createSubclassStructure(exec, exec->newTarget(), globalObject->setStructure()); |
| RETURN_IF_EXCEPTION(scope, encodedJSValue()); |
| |
| JSValue iterable = exec->argument(0); |
| if (iterable.isUndefinedOrNull()) |
| RELEASE_AND_RETURN(scope, JSValue::encode(JSSet::create(exec, vm, setStructure))); |
| |
| if (auto* iterableSet = jsDynamicCast<JSSet*>(vm, iterable)) { |
| if (iterableSet->canCloneFastAndNonObservable(setStructure)) |
| RELEASE_AND_RETURN(scope, JSValue::encode(iterableSet->clone(exec, vm, setStructure))); |
| } |
| |
| JSSet* set = JSSet::create(exec, vm, setStructure); |
| RETURN_IF_EXCEPTION(scope, encodedJSValue()); |
| |
| JSValue adderFunction = set->JSObject::get(exec, vm.propertyNames->add); |
| RETURN_IF_EXCEPTION(scope, encodedJSValue()); |
| |
| CallData adderFunctionCallData; |
| CallType adderFunctionCallType = getCallData(vm, adderFunction, adderFunctionCallData); |
| if (UNLIKELY(adderFunctionCallType == CallType::None)) |
| return JSValue::encode(throwTypeError(exec, scope)); |
| |
| scope.release(); |
| forEachInIterable(exec, iterable, [&](VM&, ExecState* exec, JSValue nextValue) { |
| MarkedArgumentBuffer arguments; |
| arguments.append(nextValue); |
| ASSERT(!arguments.hasOverflowed()); |
| call(exec, adderFunction, adderFunctionCallType, adderFunctionCallData, set, arguments); |
| }); |
| |
| return JSValue::encode(set); |
| } |
| |
| EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketHead(ExecState* exec) |
| { |
| ASSERT(jsDynamicCast<JSSet*>(exec->vm(), exec->argument(0))); |
| JSSet* set = jsCast<JSSet*>(exec->uncheckedArgument(0)); |
| auto* head = set->head(); |
| ASSERT(head); |
| return JSValue::encode(head); |
| } |
| |
| EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketNext(ExecState* exec) |
| { |
| ASSERT(jsDynamicCast<JSSet::BucketType*>(exec->vm(), exec->argument(0))); |
| auto* bucket = jsCast<JSSet::BucketType*>(exec->uncheckedArgument(0)); |
| ASSERT(bucket); |
| bucket = bucket->next(); |
| while (bucket) { |
| if (!bucket->deleted()) |
| return JSValue::encode(bucket); |
| bucket = bucket->next(); |
| } |
| return JSValue::encode(exec->vm().sentinelSetBucket()); |
| } |
| |
| EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketKey(ExecState* exec) |
| { |
| ASSERT(jsDynamicCast<JSSet::BucketType*>(exec->vm(), exec->argument(0))); |
| auto* bucket = jsCast<JSSet::BucketType*>(exec->uncheckedArgument(0)); |
| ASSERT(bucket); |
| return JSValue::encode(bucket->key()); |
| } |
| |
| } |