mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-09 10:20:59 +00:00
102 lines
4.2 KiB
C++
102 lines
4.2 KiB
C++
/*
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* Copyright (C) 2011-2018 Apple Inc. All rights reserved.
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*
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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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* are met:
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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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*
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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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*/
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#pragma once
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#include "JSFunction.h"
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namespace JSC {
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JSC_DECLARE_HOST_FUNCTION(boundThisNoArgsFunctionCall);
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JSC_DECLARE_HOST_FUNCTION(boundFunctionCall);
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JSC_DECLARE_HOST_FUNCTION(boundThisNoArgsFunctionConstruct);
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JSC_DECLARE_HOST_FUNCTION(boundFunctionConstruct);
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JSC_DECLARE_HOST_FUNCTION(isBoundFunction);
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JSC_DECLARE_HOST_FUNCTION(hasInstanceBoundFunction);
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class JSBoundFunction final : public JSFunction {
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public:
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typedef JSFunction Base;
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static constexpr unsigned StructureFlags = Base::StructureFlags & ~ImplementsDefaultHasInstance;
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static_assert(StructureFlags & ImplementsHasInstance, "");
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template<typename CellType, SubspaceAccess mode>
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static IsoSubspace* subspaceFor(VM& vm)
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{
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return vm.boundFunctionSpace<mode>();
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}
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static JSBoundFunction* create(VM&, JSGlobalObject*, JSObject* targetFunction, JSValue boundThis, JSImmutableButterfly* boundArgs, double length, JSString* nameMayBeNull);
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static bool customHasInstance(JSObject*, JSGlobalObject*, JSValue);
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JSObject* targetFunction() { return m_targetFunction.get(); }
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JSValue boundThis() { return m_boundThis.get(); }
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JSImmutableButterfly* boundArgs() { return m_boundArgs.get(); } // DO NOT allow this array to be mutated!
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JSArray* boundArgsCopy(JSGlobalObject*);
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JSString* nameMayBeNull() { return m_nameMayBeNull.get(); }
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const String& nameString()
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{
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if (!m_nameMayBeNull)
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return emptyString();
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ASSERT(!m_nameMayBeNull->isRope());
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bool allocationAllowed = false;
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return m_nameMayBeNull->tryGetValue(allocationAllowed);
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}
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double length(VM&) { return m_length; }
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static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
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{
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ASSERT(globalObject);
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return Structure::create(vm, globalObject, prototype, TypeInfo(JSFunctionType, StructureFlags), info());
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}
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static ptrdiff_t offsetOfTargetFunction() { return OBJECT_OFFSETOF(JSBoundFunction, m_targetFunction); }
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static ptrdiff_t offsetOfBoundThis() { return OBJECT_OFFSETOF(JSBoundFunction, m_boundThis); }
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static ptrdiff_t offsetOfBoundArgs() { return OBJECT_OFFSETOF(JSBoundFunction, m_boundArgs); }
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DECLARE_INFO;
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private:
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JSBoundFunction(VM&, NativeExecutable*, JSGlobalObject*, Structure*, JSObject* targetFunction, JSValue boundThis, JSImmutableButterfly* boundArgs, JSString* nameMayBeNull, double length);
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void finishCreation(VM&);
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static void visitChildren(JSCell*, SlotVisitor&);
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WriteBarrier<JSObject> m_targetFunction;
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WriteBarrier<Unknown> m_boundThis;
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WriteBarrier<JSImmutableButterfly> m_boundArgs;
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WriteBarrier<JSString> m_nameMayBeNull;
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double m_length;
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};
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JSC_DECLARE_HOST_FUNCTION(boundFunctionCall);
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JSC_DECLARE_HOST_FUNCTION(boundFunctionConstruct);
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JSC_DECLARE_HOST_FUNCTION(boundThisNoArgsFunctionCall);
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JSC_DECLARE_HOST_FUNCTION(boundThisNoArgsFunctionConstruct);
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} // namespace JSC
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