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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 ToV8_h | 5 #ifndef ToV8_h |
| 6 #define ToV8_h | 6 #define ToV8_h |
| 7 | 7 |
| 8 // ToV8() provides C++ -> V8 conversion. Note that ToV8() can return an empty | 8 // ToV8() provides C++ -> V8 conversion. Note that ToV8() can return an empty |
| 9 // handle. Call sites must check IsEmpty() before using return value. | 9 // handle. Call sites must check IsEmpty() before using return value. |
| 10 | 10 |
| 11 #include <utility> | 11 #include <utility> |
| 12 | 12 |
| 13 #include "bindings/core/v8/DOMDataStore.h" | 13 #include "platform/bindings/DOMDataStore.h" |
| 14 #include "bindings/core/v8/IDLDictionaryBase.h" | 14 #include "platform/bindings/ScriptState.h" |
| 15 #include "bindings/core/v8/ScriptState.h" | 15 #include "platform/bindings/ScriptWrappable.h" |
| 16 #include "bindings/core/v8/ScriptValue.h" | 16 #include "platform/bindings/V8Binding.h" |
| 17 #include "bindings/core/v8/ScriptWrappable.h" | |
| 18 #include "bindings/core/v8/V8Binding.h" | |
| 19 #include "core/CoreExport.h" | |
| 20 #include "core/dom/ArrayBufferViewHelpers.h" | |
| 21 #include "platform/heap/Handle.h" | 17 #include "platform/heap/Handle.h" |
| 22 #include "platform/wtf/Forward.h" | 18 #include "platform/wtf/Forward.h" |
| 23 #include "v8/include/v8.h" | 19 #include "v8/include/v8.h" |
| 24 | 20 |
| 25 namespace blink { | 21 namespace blink { |
| 26 | 22 |
| 27 // ScriptWrappable | 23 // ScriptWrappable |
| 28 | 24 |
| 29 inline v8::Local<v8::Value> ToV8(ScriptWrappable* impl, | 25 inline v8::Local<v8::Value> ToV8(ScriptWrappable* impl, |
| 30 v8::Local<v8::Object> creation_context, | 26 v8::Local<v8::Object> creation_context, |
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| 157 struct ToV8UndefinedGenerator { | 153 struct ToV8UndefinedGenerator { |
| 158 DISALLOW_NEW(); | 154 DISALLOW_NEW(); |
| 159 }; // Used only for having toV8 return v8::Undefined. | 155 }; // Used only for having toV8 return v8::Undefined. |
| 160 | 156 |
| 161 inline v8::Local<v8::Value> ToV8(const ToV8UndefinedGenerator& value, | 157 inline v8::Local<v8::Value> ToV8(const ToV8UndefinedGenerator& value, |
| 162 v8::Local<v8::Object> creation_context, | 158 v8::Local<v8::Object> creation_context, |
| 163 v8::Isolate* isolate) { | 159 v8::Isolate* isolate) { |
| 164 return v8::Undefined(isolate); | 160 return v8::Undefined(isolate); |
| 165 } | 161 } |
| 166 | 162 |
| 167 // ScriptValue | |
| 168 | |
| 169 inline v8::Local<v8::Value> ToV8(const ScriptValue& value, | |
| 170 v8::Local<v8::Object> creation_context, | |
| 171 v8::Isolate* isolate) { | |
| 172 if (value.IsEmpty()) | |
| 173 return v8::Undefined(isolate); | |
| 174 return value.V8Value(); | |
| 175 } | |
| 176 | |
| 177 // Dictionary | |
| 178 | |
| 179 inline v8::Local<v8::Value> ToV8(const IDLDictionaryBase& value, | |
| 180 v8::Local<v8::Object> creation_context, | |
| 181 v8::Isolate* isolate) { | |
| 182 return value.ToV8Impl(creation_context, isolate); | |
| 183 } | |
| 184 | |
| 185 // Array | 163 // Array |
| 186 | 164 |
| 187 // Declare the function here but define it later so it can call the ToV8() | 165 // Declare the function here but define it later so it can call the ToV8() |
| 188 // overloads below. | 166 // overloads below. |
| 189 template <typename Sequence> | 167 template <typename Sequence> |
| 190 inline v8::Local<v8::Value> ToV8SequenceInternal( | 168 inline v8::Local<v8::Value> ToV8SequenceInternal( |
| 191 const Sequence&, | 169 const Sequence&, |
| 192 v8::Local<v8::Object> creation_context, | 170 v8::Local<v8::Object> creation_context, |
| 193 v8::Isolate*); | 171 v8::Isolate*); |
| 194 | 172 |
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| 288 // because of "unresolved external symbol". | 266 // because of "unresolved external symbol". |
| 289 // Without ToV8(void*, ...), call to toV8 with T* will match with | 267 // Without ToV8(void*, ...), call to toV8 with T* will match with |
| 290 // ToV8(bool, ...) if T is not a subclass of ScriptWrappable or if T is | 268 // ToV8(bool, ...) if T is not a subclass of ScriptWrappable or if T is |
| 291 // declared but not defined (so it's not clear that T is a subclass of | 269 // declared but not defined (so it's not clear that T is a subclass of |
| 292 // ScriptWrappable). | 270 // ScriptWrappable). |
| 293 // This hack helps detect such unwanted implicit conversions from T* to bool. | 271 // This hack helps detect such unwanted implicit conversions from T* to bool. |
| 294 v8::Local<v8::Value> ToV8(void* value, | 272 v8::Local<v8::Value> ToV8(void* value, |
| 295 v8::Local<v8::Object> creation_context, | 273 v8::Local<v8::Object> creation_context, |
| 296 v8::Isolate*) = delete; | 274 v8::Isolate*) = delete; |
| 297 | 275 |
| 298 // Cannot define in ScriptValue because of the circular dependency between toV8 | |
| 299 // and ScriptValue | |
| 300 template <typename T> | |
| 301 inline ScriptValue ScriptValue::From(ScriptState* script_state, T&& value) { | |
| 302 return ScriptValue(script_state, ToV8(std::forward<T>(value), script_state)); | |
| 303 } | |
| 304 | |
| 305 } // namespace blink | 276 } // namespace blink |
| 306 | 277 |
| 307 #endif // ToV8ForPlatform_h | 278 #endif // ToV8ForPlatform_h |
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