mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-02-17 02:18:14 +00:00
85 lines
3.4 KiB
C++
85 lines
3.4 KiB
C++
/*
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* Copyright (C) 2009-2018 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 "CallFrameClosure.h"
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#include "ExceptionHelpers.h"
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#include "JSFunction.h"
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#include "Interpreter.h"
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#include "ProtoCallFrame.h"
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#include "VMEntryScope.h"
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#include "VMInlines.h"
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#include <wtf/ForbidHeapAllocation.h>
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namespace JSC {
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class CachedCall {
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WTF_MAKE_NONCOPYABLE(CachedCall);
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WTF_FORBID_HEAP_ALLOCATION;
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public:
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CachedCall(JSGlobalObject* globalObject, CallFrame* callFrame, JSFunction* function, int argumentCount)
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: m_valid(false)
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, m_vm(globalObject->vm())
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, m_interpreter(m_vm.interpreter)
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, m_entryScope(m_vm, function->scope()->globalObject(m_vm))
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{
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VM& vm = m_entryScope.vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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ASSERT(!function->isHostFunctionNonInline());
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if (LIKELY(vm.isSafeToRecurseSoft())) {
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m_arguments.ensureCapacity(argumentCount);
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if (LIKELY(!m_arguments.hasOverflowed()))
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m_closure = m_interpreter->prepareForRepeatCall(function->jsExecutable(), callFrame, &m_protoCallFrame, function, argumentCount + 1, function->scope(), m_arguments);
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else
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throwOutOfMemoryError(globalObject, scope);
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} else
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throwStackOverflowError(globalObject, scope);
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m_valid = !scope.exception();
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}
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ALWAYS_INLINE JSValue call()
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{
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ASSERT(m_valid);
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ASSERT(m_arguments.size() == static_cast<size_t>(m_protoCallFrame.argumentCount()));
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return m_interpreter->execute(m_closure);
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}
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void setThis(JSValue v) { m_protoCallFrame.setThisValue(v); }
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void clearArguments() { m_arguments.clear(); }
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void appendArgument(JSValue v) { m_arguments.append(v); }
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bool hasOverflowedArguments() { return m_arguments.hasOverflowed(); }
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private:
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bool m_valid;
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VM& m_vm;
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Interpreter* m_interpreter;
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VMEntryScope m_entryScope;
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ProtoCallFrame m_protoCallFrame;
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MarkedArgumentBuffer m_arguments;
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CallFrameClosure m_closure;
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};
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}
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