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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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2993 Handle<Map>(func->initial_map())); | 2993 Handle<Map>(func->initial_map())); |
2994 new_initial_map->set_unused_property_fields(num); | 2994 new_initial_map->set_unused_property_fields(num); |
2995 func->set_initial_map(*new_initial_map); | 2995 func->set_initial_map(*new_initial_map); |
2996 } | 2996 } |
2997 } | 2997 } |
2998 return isolate->heap()->undefined_value(); | 2998 return isolate->heap()->undefined_value(); |
2999 } | 2999 } |
3000 | 3000 |
3001 | 3001 |
3002 RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateJSGeneratorObject) { | 3002 RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateJSGeneratorObject) { |
3003 SealHandleScope shs(isolate); | 3003 HandleScope scope(isolate); |
3004 ASSERT(args.length() == 0); | 3004 ASSERT(args.length() == 0); |
3005 | 3005 |
3006 JavaScriptFrameIterator it(isolate); | 3006 JavaScriptFrameIterator it(isolate); |
3007 JavaScriptFrame* frame = it.frame(); | 3007 JavaScriptFrame* frame = it.frame(); |
3008 JSFunction* function = frame->function(); | 3008 Handle<JSFunction> function(frame->function()); |
3009 RUNTIME_ASSERT(function->shared()->is_generator()); | 3009 RUNTIME_ASSERT(function->shared()->is_generator()); |
3010 | 3010 |
3011 JSGeneratorObject* generator; | 3011 Handle<JSGeneratorObject> generator; |
3012 if (frame->IsConstructor()) { | 3012 if (frame->IsConstructor()) { |
3013 generator = JSGeneratorObject::cast(frame->receiver()); | 3013 generator = handle(JSGeneratorObject::cast(frame->receiver())); |
3014 } else { | 3014 } else { |
3015 MaybeObject* maybe_generator = | 3015 generator = isolate->factory()->NewJSGeneratorObject(function); |
3016 isolate->heap()->AllocateJSGeneratorObject(function); | |
3017 if (!maybe_generator->To(&generator)) return maybe_generator; | |
3018 } | 3016 } |
3019 generator->set_function(function); | 3017 generator->set_function(*function); |
3020 generator->set_context(Context::cast(frame->context())); | 3018 generator->set_context(Context::cast(frame->context())); |
3021 generator->set_receiver(frame->receiver()); | 3019 generator->set_receiver(frame->receiver()); |
3022 generator->set_continuation(0); | 3020 generator->set_continuation(0); |
3023 generator->set_operand_stack(isolate->heap()->empty_fixed_array()); | 3021 generator->set_operand_stack(isolate->heap()->empty_fixed_array()); |
3024 generator->set_stack_handler_index(-1); | 3022 generator->set_stack_handler_index(-1); |
3025 | 3023 |
3026 return generator; | 3024 return *generator; |
3027 } | 3025 } |
3028 | 3026 |
3029 | 3027 |
3030 RUNTIME_FUNCTION(MaybeObject*, Runtime_SuspendJSGeneratorObject) { | 3028 RUNTIME_FUNCTION(MaybeObject*, Runtime_SuspendJSGeneratorObject) { |
3031 SealHandleScope shs(isolate); | 3029 SealHandleScope shs(isolate); |
3032 ASSERT(args.length() == 1); | 3030 ASSERT(args.length() == 1); |
3033 CONVERT_ARG_CHECKED(JSGeneratorObject, generator_object, 0); | 3031 CONVERT_ARG_CHECKED(JSGeneratorObject, generator_object, 0); |
3034 | 3032 |
3035 JavaScriptFrameIterator stack_iterator(isolate); | 3033 JavaScriptFrameIterator stack_iterator(isolate); |
3036 JavaScriptFrame* frame = stack_iterator.frame(); | 3034 JavaScriptFrame* frame = stack_iterator.frame(); |
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14866 // Handle last resort GC and make sure to allow future allocations | 14864 // Handle last resort GC and make sure to allow future allocations |
14867 // to grow the heap without causing GCs (if possible). | 14865 // to grow the heap without causing GCs (if possible). |
14868 isolate->counters()->gc_last_resort_from_js()->Increment(); | 14866 isolate->counters()->gc_last_resort_from_js()->Increment(); |
14869 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 14867 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
14870 "Runtime::PerformGC"); | 14868 "Runtime::PerformGC"); |
14871 } | 14869 } |
14872 } | 14870 } |
14873 | 14871 |
14874 | 14872 |
14875 } } // namespace v8::internal | 14873 } } // namespace v8::internal |
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