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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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8862 | 8862 |
8863 CONVERT_ARG_CHECKED(JSFunction, function, 0); | 8863 CONVERT_ARG_CHECKED(JSFunction, function, 0); |
8864 CONVERT_ARG_CHECKED(ScopeInfo, scope_info, 1); | 8864 CONVERT_ARG_CHECKED(ScopeInfo, scope_info, 1); |
8865 Context* result; | 8865 Context* result; |
8866 MaybeObject* maybe_result = | 8866 MaybeObject* maybe_result = |
8867 isolate->heap()->AllocateGlobalContext(function, scope_info); | 8867 isolate->heap()->AllocateGlobalContext(function, scope_info); |
8868 if (!maybe_result->To(&result)) return maybe_result; | 8868 if (!maybe_result->To(&result)) return maybe_result; |
8869 | 8869 |
8870 ASSERT(function->context() == isolate->context()); | 8870 ASSERT(function->context() == isolate->context()); |
8871 ASSERT(function->context()->global_object() == result->global_object()); | 8871 ASSERT(function->context()->global_object() == result->global_object()); |
8872 isolate->set_context(result); | |
8873 result->global_object()->set_global_context(result); | 8872 result->global_object()->set_global_context(result); |
8874 | 8873 |
8875 return result; // non-failure | 8874 return result; // non-failure |
8876 } | 8875 } |
8877 | 8876 |
8878 | 8877 |
8879 RUNTIME_FUNCTION(MaybeObject*, Runtime_NewFunctionContext) { | 8878 RUNTIME_FUNCTION(MaybeObject*, Runtime_NewFunctionContext) { |
8880 SealHandleScope shs(isolate); | 8879 SealHandleScope shs(isolate); |
8881 ASSERT(args.length() == 1); | 8880 ASSERT(args.length() == 1); |
8882 | 8881 |
8883 CONVERT_ARG_CHECKED(JSFunction, function, 0); | 8882 CONVERT_ARG_CHECKED(JSFunction, function, 0); |
8884 int length = function->shared()->scope_info()->ContextLength(); | 8883 int length = function->shared()->scope_info()->ContextLength(); |
8885 Context* result; | 8884 return isolate->heap()->AllocateFunctionContext(length, function); |
8886 MaybeObject* maybe_result = | |
8887 isolate->heap()->AllocateFunctionContext(length, function); | |
8888 if (!maybe_result->To(&result)) return maybe_result; | |
8889 | |
8890 isolate->set_context(result); | |
8891 | |
8892 return result; // non-failure | |
8893 } | 8885 } |
8894 | 8886 |
8895 | 8887 |
8896 RUNTIME_FUNCTION(MaybeObject*, Runtime_PushWithContext) { | 8888 RUNTIME_FUNCTION(MaybeObject*, Runtime_PushWithContext) { |
8897 SealHandleScope shs(isolate); | 8889 SealHandleScope shs(isolate); |
8898 ASSERT(args.length() == 2); | 8890 ASSERT(args.length() == 2); |
8899 JSReceiver* extension_object; | 8891 JSReceiver* extension_object; |
8900 if (args[0]->IsJSReceiver()) { | 8892 if (args[0]->IsJSReceiver()) { |
8901 extension_object = JSReceiver::cast(args[0]); | 8893 extension_object = JSReceiver::cast(args[0]); |
8902 } else { | 8894 } else { |
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14899 // Handle last resort GC and make sure to allow future allocations | 14891 // Handle last resort GC and make sure to allow future allocations |
14900 // to grow the heap without causing GCs (if possible). | 14892 // to grow the heap without causing GCs (if possible). |
14901 isolate->counters()->gc_last_resort_from_js()->Increment(); | 14893 isolate->counters()->gc_last_resort_from_js()->Increment(); |
14902 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 14894 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
14903 "Runtime::PerformGC"); | 14895 "Runtime::PerformGC"); |
14904 } | 14896 } |
14905 } | 14897 } |
14906 | 14898 |
14907 | 14899 |
14908 } } // namespace v8::internal | 14900 } } // namespace v8::internal |
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