1/*
2 * Copyright (C) 2016 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "IDLTypes.h"
29#include "JSDOMConvertBase.h"
30
31namespace WebCore {
32
33// Specialized by generated code for IDL enumeration conversion.
34template<typename T> Optional<T> parseEnumeration(JSC::ExecState&, JSC::JSValue);
35template<typename T> const char* expectedEnumerationValues();
36
37// Specialized by generated code for IDL enumeration conversion.
38template<typename T> JSC::JSString* convertEnumerationToJS(JSC::ExecState&, T);
39
40
41template<typename T> struct Converter<IDLEnumeration<T>> : DefaultConverter<IDLEnumeration<T>> {
42 template<typename ExceptionThrower = DefaultExceptionThrower>
43 static T convert(JSC::ExecState& state, JSC::JSValue value, ExceptionThrower&& exceptionThrower = ExceptionThrower())
44 {
45 auto& vm = state.vm();
46 auto throwScope = DECLARE_THROW_SCOPE(vm);
47
48 auto result = parseEnumeration<T>(state, value);
49 RETURN_IF_EXCEPTION(throwScope, { });
50
51 if (UNLIKELY(!result)) {
52 exceptionThrower(state, throwScope);
53 return { };
54 }
55 return result.value();
56 }
57};
58
59template<typename T> struct JSConverter<IDLEnumeration<T>> {
60 static constexpr bool needsState = true;
61 static constexpr bool needsGlobalObject = false;
62
63 static JSC::JSValue convert(JSC::ExecState& exec, T value)
64 {
65 return convertEnumerationToJS(exec, value);
66 }
67};
68
69} // namespace WebCore
70