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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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13373 | 13373 |
13374 | 13374 |
13375 // Retrieve the stack trace. This could be the raw stack trace collected | 13375 // Retrieve the stack trace. This could be the raw stack trace collected |
13376 // on stack overflow or the already formatted stack trace string. | 13376 // on stack overflow or the already formatted stack trace string. |
13377 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOverflowedStackTrace) { | 13377 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOverflowedStackTrace) { |
13378 HandleScope scope(isolate); | 13378 HandleScope scope(isolate); |
13379 ASSERT_EQ(args.length(), 1); | 13379 ASSERT_EQ(args.length(), 1); |
13380 CONVERT_ARG_CHECKED(JSObject, error_object, 0); | 13380 CONVERT_ARG_CHECKED(JSObject, error_object, 0); |
13381 String* key = isolate->heap()->hidden_stack_trace_string(); | 13381 String* key = isolate->heap()->hidden_stack_trace_string(); |
13382 Object* result = error_object->GetHiddenProperty(key); | 13382 Object* result = error_object->GetHiddenProperty(key); |
| 13383 if (result->IsTheHole()) result = isolate->heap()->undefined_value(); |
13383 RUNTIME_ASSERT(result->IsJSArray() || | 13384 RUNTIME_ASSERT(result->IsJSArray() || |
13384 result->IsString() || | 13385 result->IsString() || |
13385 result->IsUndefined()); | 13386 result->IsUndefined()); |
13386 return result; | 13387 return result; |
13387 } | 13388 } |
13388 | 13389 |
13389 | 13390 |
13390 // Set or clear the stack trace attached to an stack overflow error object. | 13391 // Set or clear the stack trace attached to an stack overflow error object. |
13391 RUNTIME_FUNCTION(MaybeObject*, Runtime_SetOverflowedStackTrace) { | 13392 RUNTIME_FUNCTION(MaybeObject*, Runtime_SetOverflowedStackTrace) { |
13392 HandleScope scope(isolate); | 13393 HandleScope scope(isolate); |
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13922 // Handle last resort GC and make sure to allow future allocations | 13923 // Handle last resort GC and make sure to allow future allocations |
13923 // to grow the heap without causing GCs (if possible). | 13924 // to grow the heap without causing GCs (if possible). |
13924 isolate->counters()->gc_last_resort_from_js()->Increment(); | 13925 isolate->counters()->gc_last_resort_from_js()->Increment(); |
13925 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 13926 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
13926 "Runtime::PerformGC"); | 13927 "Runtime::PerformGC"); |
13927 } | 13928 } |
13928 } | 13929 } |
13929 | 13930 |
13930 | 13931 |
13931 } } // namespace v8::internal | 13932 } } // namespace v8::internal |
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