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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 Maplike_h | 5 #ifndef Maplike_h |
| 6 #define Maplike_h | 6 #define Maplike_h |
| 7 | 7 |
| 8 #include "bindings/core/v8/Iterable.h" | 8 #include "bindings/core/v8/Iterable.h" |
| 9 #include "bindings/core/v8/ScriptValue.h" | 9 #include "bindings/core/v8/ScriptValue.h" |
| 10 #include "bindings/core/v8/ToV8.h" | 10 #include "bindings/core/v8/ToV8.h" |
| 11 | 11 |
| 12 namespace blink { | 12 namespace blink { |
| 13 | 13 |
| 14 template <typename KeyType, typename ValueType> | 14 template <typename KeyType, typename ValueType> |
| 15 class Maplike : public PairIterable<KeyType, ValueType> { | 15 class Maplike : public PairIterable<KeyType, ValueType> { |
| 16 public: | 16 public: |
| 17 bool hasForBinding(ScriptState* scriptState, | 17 bool hasForBinding(ScriptState* scriptState, |
| 18 const KeyType& key, | 18 const KeyType& key, |
| 19 ExceptionState& exceptionState) { | 19 ExceptionState& exceptionState) { |
| 20 ValueType value; | 20 ValueType value; |
| 21 return getMapEntry(scriptState, key, value, exceptionState); | 21 return getMapEntry(scriptState, key, value, exceptionState); |
| 22 } | 22 } |
| 23 | 23 |
| 24 ScriptValue getForBinding(ScriptState* scriptState, | 24 ScriptValue getForBinding(ScriptState* scriptState, |
| 25 const KeyType& key, | 25 const KeyType& key, |
| 26 ExceptionState& exceptionState) { | 26 ExceptionState& exceptionState) { |
| 27 ValueType value; | 27 ValueType value; |
| 28 if (getMapEntry(scriptState, key, value, exceptionState)) | 28 if (getMapEntry(scriptState, key, value, exceptionState)) |
| 29 return ScriptValue(scriptState, | 29 return ScriptValue(scriptState, |
| 30 toV8(value, scriptState->context()->Global(), | 30 ToV8(value, scriptState->context()->Global(), |
| 31 scriptState->isolate())); | 31 scriptState->isolate())); |
| 32 return ScriptValue(scriptState, v8::Undefined(scriptState->isolate())); | 32 return ScriptValue(scriptState, v8::Undefined(scriptState->isolate())); |
| 33 } | 33 } |
| 34 | 34 |
| 35 private: | 35 private: |
| 36 virtual bool getMapEntry(ScriptState*, | 36 virtual bool getMapEntry(ScriptState*, |
| 37 const KeyType&, | 37 const KeyType&, |
| 38 ValueType&, | 38 ValueType&, |
| 39 ExceptionState&) = 0; | 39 ExceptionState&) = 0; |
| 40 }; | 40 }; |
| 41 | 41 |
| 42 } // namespace blink | 42 } // namespace blink |
| 43 | 43 |
| 44 #endif // Maplike_h | 44 #endif // Maplike_h |
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