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Issue 7977001: Added ability to lock strings to prevent their representation or encoding from changing. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix bug in test when running threaded. Created 9 years, 2 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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935 935
936 936
937 bool CompileOptimized(Handle<JSFunction> function, 937 bool CompileOptimized(Handle<JSFunction> function,
938 int osr_ast_id, 938 int osr_ast_id,
939 ClearExceptionFlag flag) { 939 ClearExceptionFlag flag) {
940 CompilationInfo info(function); 940 CompilationInfo info(function);
941 info.SetOptimizing(osr_ast_id); 941 info.SetOptimizing(osr_ast_id);
942 return CompileLazyHelper(&info, flag); 942 return CompileLazyHelper(&info, flag);
943 } 943 }
944 944
945
946 void LockString(Handle<String> string) {
947 CALL_HEAP_FUNCTION_VOID(string->GetHeap()->isolate(),
948 string->GetHeap()->LockString(*string));
949 }
950
951
952 StringLock::StringLock(Handle<String> string) : string_(string) {
953 LockString(string);
954 }
955
956
957 StringLock::~StringLock() {
958 string_->GetHeap()->UnlockString(*string_);
959 }
960
945 } } // namespace v8::internal 961 } } // namespace v8::internal
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