mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
103 lines
4.3 KiB
C++
103 lines
4.3 KiB
C++
/*
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* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
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* Copyright (C) 2003-2017 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "config.h"
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#include "ErrorConstructor.h"
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#include "ErrorPrototype.h"
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#include "JSCInlines.h"
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namespace JSC {
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STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(ErrorConstructor);
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const ClassInfo ErrorConstructor::s_info = { "Function", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(ErrorConstructor) };
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static JSC_DECLARE_HOST_FUNCTION(callErrorConstructor);
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static JSC_DECLARE_HOST_FUNCTION(constructErrorConstructor);
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ErrorConstructor::ErrorConstructor(VM& vm, Structure* structure)
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: InternalFunction(vm, structure, callErrorConstructor, constructErrorConstructor)
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{
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}
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void ErrorConstructor::finishCreation(VM& vm, ErrorPrototype* errorPrototype)
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{
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Base::finishCreation(vm, 1, vm.propertyNames->Error.string(), PropertyAdditionMode::WithoutStructureTransition);
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// ECMA 15.11.3.1 Error.prototype
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putDirectWithoutTransition(vm, vm.propertyNames->prototype, errorPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
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putDirectWithoutTransition(vm, vm.propertyNames->stackTraceLimit, jsNumber(globalObject()->stackTraceLimit().valueOr(Options::defaultErrorStackTraceLimit())), static_cast<unsigned>(PropertyAttribute::None));
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}
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// ECMA 15.9.3
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JSC_DEFINE_HOST_FUNCTION(constructErrorConstructor, (JSGlobalObject* globalObject, CallFrame* callFrame))
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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JSValue message = callFrame->argument(0);
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JSObject* newTarget = asObject(callFrame->newTarget());
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Structure* errorStructure = newTarget == callFrame->jsCallee()
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? globalObject->errorStructure()
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: InternalFunction::createSubclassStructure(globalObject, newTarget, getFunctionRealm(vm, newTarget)->errorStructure());
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RETURN_IF_EXCEPTION(scope, { });
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RELEASE_AND_RETURN(scope, JSValue::encode(ErrorInstance::create(globalObject, errorStructure, message, nullptr, TypeNothing, false)));
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}
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JSC_DEFINE_HOST_FUNCTION(callErrorConstructor, (JSGlobalObject* globalObject, CallFrame* callFrame))
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{
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JSValue message = callFrame->argument(0);
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Structure* errorStructure = globalObject->errorStructure();
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return JSValue::encode(ErrorInstance::create(globalObject, errorStructure, message, nullptr, TypeNothing, false));
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}
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bool ErrorConstructor::put(JSCell* cell, JSGlobalObject* globalObject, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
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{
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VM& vm = globalObject->vm();
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ErrorConstructor* thisObject = jsCast<ErrorConstructor*>(cell);
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if (propertyName == vm.propertyNames->stackTraceLimit) {
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if (value.isNumber()) {
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double effectiveLimit = value.asNumber();
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effectiveLimit = std::max(0., effectiveLimit);
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effectiveLimit = std::min(effectiveLimit, static_cast<double>(std::numeric_limits<unsigned>::max()));
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thisObject->globalObject()->setStackTraceLimit(static_cast<unsigned>(effectiveLimit));
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} else
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thisObject->globalObject()->setStackTraceLimit(WTF::nullopt);
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}
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return Base::put(thisObject, globalObject, propertyName, value, slot);
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}
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bool ErrorConstructor::deleteProperty(JSCell* cell, JSGlobalObject* globalObject, PropertyName propertyName, DeletePropertySlot& slot)
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{
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VM& vm = globalObject->vm();
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ErrorConstructor* thisObject = jsCast<ErrorConstructor*>(cell);
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if (propertyName == vm.propertyNames->stackTraceLimit)
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thisObject->globalObject()->setStackTraceLimit(WTF::nullopt);
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return Base::deleteProperty(thisObject, globalObject, propertyName, slot);
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}
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} // namespace JSC
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