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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 #ifndef V8_HANDLES_H_ | 28 #ifndef V8_HANDLES_H_ |
| 29 #define V8_HANDLES_H_ | 29 #define V8_HANDLES_H_ |
| 30 | 30 |
| 31 #include "allocation.h" | 31 #include "allocation.h" |
| 32 #include "apiutils.h" | |
| 33 #include "objects.h" | 32 #include "objects.h" |
| 34 | 33 |
| 35 namespace v8 { | 34 namespace v8 { |
| 36 namespace internal { | 35 namespace internal { |
| 37 | 36 |
| 38 // ---------------------------------------------------------------------------- | 37 // ---------------------------------------------------------------------------- |
| 39 // A Handle provides a reference to an object that survives relocation by | 38 // A Handle provides a reference to an object that survives relocation by |
| 40 // the garbage collector. | 39 // the garbage collector. |
| 41 // Handles are only valid within a HandleScope. | 40 // Handles are only valid within a HandleScope. |
| 42 // When a handle is created for an object a cell is allocated in the heap. | 41 // When a handle is created for an object a cell is allocated in the heap. |
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| 310 #else | 309 #else |
| 311 explicit inline SealHandleScope(Isolate* isolate); | 310 explicit inline SealHandleScope(Isolate* isolate); |
| 312 inline ~SealHandleScope(); | 311 inline ~SealHandleScope(); |
| 313 private: | 312 private: |
| 314 Isolate* isolate_; | 313 Isolate* isolate_; |
| 315 Object** limit_; | 314 Object** limit_; |
| 316 int level_; | 315 int level_; |
| 317 #endif | 316 #endif |
| 318 }; | 317 }; |
| 319 | 318 |
| 319 struct HandleScopeData { |
| 320 internal::Object** next; |
| 321 internal::Object** limit; |
| 322 int level; |
| 323 |
| 324 void Initialize() { |
| 325 next = limit = NULL; |
| 326 level = 0; |
| 327 } |
| 328 }; |
| 329 |
| 320 } } // namespace v8::internal | 330 } } // namespace v8::internal |
| 321 | 331 |
| 322 #endif // V8_HANDLES_H_ | 332 #endif // V8_HANDLES_H_ |
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