Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>

1 files changed, 68 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/dfg/DFGDesiredIdentifiers.h b/Source/JavaScriptCore/dfg/DFGDesiredIdentifiers.h
new file mode 100644
index 000000000..d8587dc6d
--- /dev/null
+++ b/Source/JavaScriptCore/dfg/DFGDesiredIdentifiers.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2013-2015 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef DFGDesiredIdentifiers_h
+#define DFGDesiredIdentifiers_h
+
+#if ENABLE(DFG_JIT)
+
+#include "Identifier.h"
+
+namespace JSC {
+
+class CodeBlock;
+
+namespace DFG {
+
+class CommonData;
+
+class DesiredIdentifiers {
+public:
+    DesiredIdentifiers();
+    DesiredIdentifiers(CodeBlock*);
+    ~DesiredIdentifiers();
+    
+    unsigned numberOfIdentifiers();
+    unsigned ensure(UniquedStringImpl*);
+    
+    UniquedStringImpl* at(unsigned index) const;
+    
+    UniquedStringImpl* operator[](unsigned index) const { return at(index); }
+    
+    void reallyAdd(VM&, CommonData*);
+    
+private:
+    CodeBlock* m_codeBlock;
+    Vector<UniquedStringImpl*> m_addedIdentifiers;
+    HashMap<UniquedStringImpl*, unsigned> m_identifierNumberForName;
+    bool m_didProcessIdentifiers;
+};
+
+} } // namespace JSC::DFG
+
+#endif // ENABLE(DFG_JIT)
+
+#endif // DFGDesiredIdentifiers_h
+