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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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| 1021 return Failure::Exception(); | 1021 return Failure::Exception(); |
| 1022 } | 1022 } |
| 1023 | 1023 |
| 1024 | 1024 |
| 1025 Failure* Isolate::TerminateExecution() { | 1025 Failure* Isolate::TerminateExecution() { |
| 1026 DoThrow(heap_.termination_exception(), NULL); | 1026 DoThrow(heap_.termination_exception(), NULL); |
| 1027 return Failure::Exception(); | 1027 return Failure::Exception(); |
| 1028 } | 1028 } |
| 1029 | 1029 |
| 1030 | 1030 |
| 1031 void Isolate::ResumeExecution() { | |
| 1032 if (has_pending_exception() && | |
| 1033 pending_exception() == heap_.termination_exception()) { | |
| 1034 thread_local_top()->external_caught_exception_ = false; | |
| 1035 clear_pending_exception(); | |
| 1036 } | |
| 1037 if (has_scheduled_exception() && | |
| 1038 scheduled_exception() == heap_.termination_exception()) { | |
| 1039 clear_scheduled_exception(); | |
| 1040 } | |
| 1041 } | |
| 1042 | |
| 1043 | |
| 1044 Failure* Isolate::Throw(Object* exception, MessageLocation* location) { | 1031 Failure* Isolate::Throw(Object* exception, MessageLocation* location) { |
| 1045 DoThrow(exception, location); | 1032 DoThrow(exception, location); |
| 1046 return Failure::Exception(); | 1033 return Failure::Exception(); |
| 1047 } | 1034 } |
| 1048 | 1035 |
| 1049 | 1036 |
| 1050 Failure* Isolate::ReThrow(MaybeObject* exception) { | 1037 Failure* Isolate::ReThrow(MaybeObject* exception) { |
| 1051 bool can_be_caught_externally = false; | 1038 bool can_be_caught_externally = false; |
| 1052 bool catchable_by_javascript = is_catchable_by_javascript(exception); | 1039 bool catchable_by_javascript = is_catchable_by_javascript(exception); |
| 1053 ShouldReportException(&can_be_caught_externally, catchable_by_javascript); | 1040 ShouldReportException(&can_be_caught_externally, catchable_by_javascript); |
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| 1889 bool external_caught = IsExternallyCaught(); | 1876 bool external_caught = IsExternallyCaught(); |
| 1890 thread_local_top_.external_caught_exception_ = external_caught; | 1877 thread_local_top_.external_caught_exception_ = external_caught; |
| 1891 | 1878 |
| 1892 if (!external_caught) return; | 1879 if (!external_caught) return; |
| 1893 | 1880 |
| 1894 if (thread_local_top_.pending_exception_ == Failure::OutOfMemoryException()) { | 1881 if (thread_local_top_.pending_exception_ == Failure::OutOfMemoryException()) { |
| 1895 // Do not propagate OOM exception: we should kill VM asap. | 1882 // Do not propagate OOM exception: we should kill VM asap. |
| 1896 } else if (thread_local_top_.pending_exception_ == | 1883 } else if (thread_local_top_.pending_exception_ == |
| 1897 heap()->termination_exception()) { | 1884 heap()->termination_exception()) { |
| 1898 try_catch_handler()->can_continue_ = false; | 1885 try_catch_handler()->can_continue_ = false; |
| 1899 try_catch_handler()->has_terminated_ = true; | |
| 1900 try_catch_handler()->exception_ = heap()->null_value(); | 1886 try_catch_handler()->exception_ = heap()->null_value(); |
| 1901 } else { | 1887 } else { |
| 1902 // At this point all non-object (failure) exceptions have | 1888 // At this point all non-object (failure) exceptions have |
| 1903 // been dealt with so this shouldn't fail. | 1889 // been dealt with so this shouldn't fail. |
| 1904 ASSERT(!pending_exception()->IsFailure()); | 1890 ASSERT(!pending_exception()->IsFailure()); |
| 1905 try_catch_handler()->can_continue_ = true; | 1891 try_catch_handler()->can_continue_ = true; |
| 1906 try_catch_handler()->has_terminated_ = false; | |
| 1907 try_catch_handler()->exception_ = pending_exception(); | 1892 try_catch_handler()->exception_ = pending_exception(); |
| 1908 if (!thread_local_top_.pending_message_obj_->IsTheHole()) { | 1893 if (!thread_local_top_.pending_message_obj_->IsTheHole()) { |
| 1909 try_catch_handler()->message_ = thread_local_top_.pending_message_obj_; | 1894 try_catch_handler()->message_ = thread_local_top_.pending_message_obj_; |
| 1910 } | 1895 } |
| 1911 } | 1896 } |
| 1912 } | 1897 } |
| 1913 | 1898 |
| 1914 | 1899 |
| 1915 void Isolate::InitializeLoggingAndCounters() { | 1900 void Isolate::InitializeLoggingAndCounters() { |
| 1916 if (logger_ == NULL) { | 1901 if (logger_ == NULL) { |
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| 2192 | 2177 |
| 2193 #ifdef DEBUG | 2178 #ifdef DEBUG |
| 2194 #define ISOLATE_FIELD_OFFSET(type, name, ignored) \ | 2179 #define ISOLATE_FIELD_OFFSET(type, name, ignored) \ |
| 2195 const intptr_t Isolate::name##_debug_offset_ = OFFSET_OF(Isolate, name##_); | 2180 const intptr_t Isolate::name##_debug_offset_ = OFFSET_OF(Isolate, name##_); |
| 2196 ISOLATE_INIT_LIST(ISOLATE_FIELD_OFFSET) | 2181 ISOLATE_INIT_LIST(ISOLATE_FIELD_OFFSET) |
| 2197 ISOLATE_INIT_ARRAY_LIST(ISOLATE_FIELD_OFFSET) | 2182 ISOLATE_INIT_ARRAY_LIST(ISOLATE_FIELD_OFFSET) |
| 2198 #undef ISOLATE_FIELD_OFFSET | 2183 #undef ISOLATE_FIELD_OFFSET |
| 2199 #endif | 2184 #endif |
| 2200 | 2185 |
| 2201 } } // namespace v8::internal | 2186 } } // namespace v8::internal |
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