104 lines
4.3 KiB
C++
104 lines
4.3 KiB
C++
/*
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* Copyright (C) 2016 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. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "IDLTypes.h"
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#include "JSDOMConvertBase.h"
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#include <JavaScriptCore/Error.h>
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namespace WebCore {
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template<typename ImplementationClass> struct JSDOMWrapperConverterTraits;
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template<typename T, typename Enable = void>
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struct JSToWrappedOverloader {
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using ReturnType = typename JSDOMWrapperConverterTraits<T>::ToWrappedReturnType;
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using WrapperType = typename JSDOMWrapperConverterTraits<T>::WrapperClass;
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static ReturnType toWrapped(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value)
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{
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return WrapperType::toWrapped(JSC::getVM(&lexicalGlobalObject), value);
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}
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};
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template<typename T>
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struct JSToWrappedOverloader<T, typename std::enable_if<JSDOMWrapperConverterTraits<T>::needsState>::type> {
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using ReturnType = typename JSDOMWrapperConverterTraits<T>::ToWrappedReturnType;
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using WrapperType = typename JSDOMWrapperConverterTraits<T>::WrapperClass;
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static ReturnType toWrapped(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value)
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{
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return WrapperType::toWrapped(lexicalGlobalObject, value);
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}
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};
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template<typename T> struct Converter<IDLInterface<T>> : DefaultConverter<IDLInterface<T>> {
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using ReturnType = typename JSDOMWrapperConverterTraits<T>::ToWrappedReturnType;
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using WrapperType = typename JSDOMWrapperConverterTraits<T>::WrapperClass;
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template<typename ExceptionThrower = DefaultExceptionThrower>
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static ReturnType convert(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value, ExceptionThrower&& exceptionThrower = ExceptionThrower())
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{
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auto& vm = JSC::getVM(&lexicalGlobalObject);
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auto scope = DECLARE_THROW_SCOPE(vm);
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ReturnType object = JSToWrappedOverloader<T>::toWrapped(lexicalGlobalObject, value);
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if (UNLIKELY(!object))
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exceptionThrower(lexicalGlobalObject, scope);
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return object;
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}
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};
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template<typename T> struct JSConverter<IDLInterface<T>> {
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static constexpr bool needsState = true;
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static constexpr bool needsGlobalObject = true;
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template <typename U>
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static JSC::JSValue convert(JSC::JSGlobalObject& lexicalGlobalObject, JSDOMGlobalObject& globalObject, const U& value)
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{
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return toJS(&lexicalGlobalObject, &globalObject, Detail::getPtrOrRef(value));
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}
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template<typename U>
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static JSC::JSValue convertNewlyCreated(JSC::JSGlobalObject& lexicalGlobalObject, JSDOMGlobalObject& globalObject, U&& value)
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{
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return toJSNewlyCreated(&lexicalGlobalObject, &globalObject, std::forward<U>(value));
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}
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};
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template<typename T> struct VariadicConverter<IDLInterface<T>> {
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using Item = std::reference_wrapper<T>;
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static std::optional<Item> convert(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value)
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{
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auto* result = Converter<IDLInterface<T>>::convert(lexicalGlobalObject, value);
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if (!result)
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return std::nullopt;
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return std::optional<Item> { *result };
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}
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};
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} // namespace WebCore
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