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| 1 /* | 1 /* |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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| 117 // creationContext should not be empty. Because if we have an | 117 // creationContext should not be empty. Because if we have an |
| 118 // empty creationContext, we will end up creating | 118 // empty creationContext, we will end up creating |
| 119 // a new object in the context currently entered. This is wrong. | 119 // a new object in the context currently entered. This is wrong. |
| 120 RELEASE_ASSERT(!creationContext.IsEmpty()); | 120 RELEASE_ASSERT(!creationContext.IsEmpty()); |
| 121 v8::Local<v8::Context> contextForWrapper = creationContext->CreationCont
ext(); | 121 v8::Local<v8::Context> contextForWrapper = creationContext->CreationCont
ext(); |
| 122 // For performance, we enter the context only if the currently running c
ontext | 122 // For performance, we enter the context only if the currently running c
ontext |
| 123 // is different from the context that we are about to enter. | 123 // is different from the context that we are about to enter. |
| 124 if (contextForWrapper == m_context) | 124 if (contextForWrapper == m_context) |
| 125 return; | 125 return; |
| 126 if (withSecurityCheck) | 126 if (withSecurityCheck) |
| 127 SecurityCheck(isolate, contextForWrapper); | 127 securityCheck(isolate, contextForWrapper); |
| 128 m_context = v8::Local<v8::Context>::New(isolate, contextForWrapper); | 128 m_context = v8::Local<v8::Context>::New(isolate, contextForWrapper); |
| 129 m_didEnterContext = true; | 129 m_didEnterContext = true; |
| 130 m_context->Enter(); | 130 m_context->Enter(); |
| 131 } | 131 } |
| 132 | 132 |
| 133 ~V8WrapperInstantiationScope() | 133 ~V8WrapperInstantiationScope() |
| 134 { | 134 { |
| 135 if (!m_didEnterContext) | 135 if (!m_didEnterContext) |
| 136 return; | 136 return; |
| 137 m_context->Exit(); | 137 m_context->Exit(); |
| 138 } | 138 } |
| 139 | 139 |
| 140 v8::Local<v8::Context> context() const { return m_context; } | 140 v8::Local<v8::Context> context() const { return m_context; } |
| 141 | 141 |
| 142 private: | 142 private: |
| 143 void SecurityCheck(v8::Isolate*, v8::Local<v8::Context> contextForWrapper); | 143 void securityCheck(v8::Isolate*, v8::Local<v8::Context> contextForWrapper); |
| 144 | 144 |
| 145 bool m_didEnterContext; | 145 bool m_didEnterContext; |
| 146 v8::Local<v8::Context> m_context; | 146 v8::Local<v8::Context> m_context; |
| 147 }; | 147 }; |
| 148 | 148 |
| 149 } // namespace blink | 149 } // namespace blink |
| 150 | 150 |
| 151 #endif // V8DOMWrapper_h | 151 #endif // V8DOMWrapper_h |
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