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1 // Copyright 2006-2008 Google Inc. All Rights Reserved. | 1 // Copyright 2006-2008 Google Inc. 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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3443 } | 3443 } |
3444 | 3444 |
3445 | 3445 |
3446 // Push an array unto an array of arrays if it is not already in the | 3446 // Push an array unto an array of arrays if it is not already in the |
3447 // array. Returns true if the element was pushed on the stack and | 3447 // array. Returns true if the element was pushed on the stack and |
3448 // false otherwise. | 3448 // false otherwise. |
3449 static Object* Runtime_PushIfAbsent(Arguments args) { | 3449 static Object* Runtime_PushIfAbsent(Arguments args) { |
3450 ASSERT(args.length() == 2); | 3450 ASSERT(args.length() == 2); |
3451 CONVERT_CHECKED(JSArray, array, args[0]); | 3451 CONVERT_CHECKED(JSArray, array, args[0]); |
3452 CONVERT_CHECKED(JSArray, element, args[1]); | 3452 CONVERT_CHECKED(JSArray, element, args[1]); |
3453 CHECK(array->HasFastElements()); | 3453 RUNTIME_ASSERT(array->HasFastElements()); |
3454 int length = Smi::cast(array->length())->value(); | 3454 int length = Smi::cast(array->length())->value(); |
3455 FixedArray* elements = FixedArray::cast(array->elements()); | 3455 FixedArray* elements = FixedArray::cast(array->elements()); |
3456 for (int i = 0; i < length; i++) { | 3456 for (int i = 0; i < length; i++) { |
3457 if (elements->get(i) == element) return Heap::false_value(); | 3457 if (elements->get(i) == element) return Heap::false_value(); |
3458 } | 3458 } |
3459 Object* obj = array->SetFastElement(length, element); | 3459 Object* obj = array->SetFastElement(length, element); |
3460 if (obj->IsFailure()) return obj; | 3460 if (obj->IsFailure()) return obj; |
3461 return Heap::true_value(); | 3461 return Heap::true_value(); |
3462 } | 3462 } |
3463 | 3463 |
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4991 | 4991 |
4992 void Runtime::PerformGC(Object* result) { | 4992 void Runtime::PerformGC(Object* result) { |
4993 Failure* failure = Failure::cast(result); | 4993 Failure* failure = Failure::cast(result); |
4994 // Try to do a garbage collection; ignore it if it fails. The C | 4994 // Try to do a garbage collection; ignore it if it fails. The C |
4995 // entry stub will throw an out-of-memory exception in that case. | 4995 // entry stub will throw an out-of-memory exception in that case. |
4996 Heap::CollectGarbage(failure->requested(), failure->allocation_space()); | 4996 Heap::CollectGarbage(failure->requested(), failure->allocation_space()); |
4997 } | 4997 } |
4998 | 4998 |
4999 | 4999 |
5000 } } // namespace v8::internal | 5000 } } // namespace v8::internal |
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