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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef GIN_WRAPPABLE_H_ | 5 #ifndef GIN_WRAPPABLE_H_ |
6 #define GIN_WRAPPABLE_H_ | 6 #define GIN_WRAPPABLE_H_ |
7 | 7 |
| 8 #include <type_traits> |
| 9 |
8 #include "base/template_util.h" | 10 #include "base/template_util.h" |
9 #include "gin/converter.h" | 11 #include "gin/converter.h" |
10 #include "gin/gin_export.h" | 12 #include "gin/gin_export.h" |
11 #include "gin/public/wrapper_info.h" | 13 #include "gin/public/wrapper_info.h" |
12 | 14 |
13 namespace gin { | 15 namespace gin { |
14 | 16 |
15 // Wrappable is a base class for C++ objects that have corresponding v8 wrapper | 17 // Wrappable is a base class for C++ objects that have corresponding v8 wrapper |
16 // objects. To retain a Wrappable object on the stack, use a gin::Handle. | 18 // objects. To retain a Wrappable object on the stack, use a gin::Handle. |
17 // | 19 // |
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94 protected: | 96 protected: |
95 Wrappable() {} | 97 Wrappable() {} |
96 virtual ~Wrappable() {} | 98 virtual ~Wrappable() {} |
97 | 99 |
98 private: | 100 private: |
99 DISALLOW_COPY_AND_ASSIGN(Wrappable); | 101 DISALLOW_COPY_AND_ASSIGN(Wrappable); |
100 }; | 102 }; |
101 | 103 |
102 | 104 |
103 // This converter handles any subclass of Wrappable. | 105 // This converter handles any subclass of Wrappable. |
104 template<typename T> | 106 template <typename T> |
105 struct Converter<T*, typename base::enable_if< | 107 struct Converter<T*, |
106 base::is_convertible<T*, WrappableBase*>::value>::type> { | 108 typename std::enable_if< |
| 109 base::is_convertible<T*, WrappableBase*>::value>::type> { |
107 static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, T* val) { | 110 static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, T* val) { |
108 return val->GetWrapper(isolate); | 111 return val->GetWrapper(isolate); |
109 } | 112 } |
110 | 113 |
111 static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val, T** out) { | 114 static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val, T** out) { |
112 *out = static_cast<T*>(static_cast<WrappableBase*>( | 115 *out = static_cast<T*>(static_cast<WrappableBase*>( |
113 internal::FromV8Impl(isolate, val, &T::kWrapperInfo))); | 116 internal::FromV8Impl(isolate, val, &T::kWrapperInfo))); |
114 return *out != NULL; | 117 return *out != NULL; |
115 } | 118 } |
116 }; | 119 }; |
117 | 120 |
118 } // namespace gin | 121 } // namespace gin |
119 | 122 |
120 #endif // GIN_WRAPPABLE_H_ | 123 #endif // GIN_WRAPPABLE_H_ |
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