webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 88 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/bytecode/StructureSet.h b/Source/JavaScriptCore/bytecode/StructureSet.h
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+++ b/Source/JavaScriptCore/bytecode/StructureSet.h
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+/*
+ * Copyright (C) 2011, 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 StructureSet_h
+#define StructureSet_h
+
+#include "ArrayProfile.h"
+#include "DumpContext.h"
+#include "SpeculatedType.h"
+#include "Structure.h"
+#include <wtf/TinyPtrSet.h>
+
+namespace JSC {
+
+class TrackedReferences;
+
+namespace DFG {
+class StructureAbstractValue;
+struct AbstractValue;
+}
+
+class StructureSet : public TinyPtrSet<Structure*> {
+public:
+    // I really want to do this:
+    // using TinyPtrSet::TinyPtrSet;
+    //
+    // But I can't because Windows.
+    
+    StructureSet()
+    {
+    }
+    
+    StructureSet(Structure* structure)
+        : TinyPtrSet(structure)
+    {
+    }
+    
+    ALWAYS_INLINE StructureSet(const StructureSet& other)
+        : TinyPtrSet(other)
+    {
+    }
+    
+    Structure* onlyStructure() const
+    {
+        return onlyEntry();
+    }
+    
+#if ENABLE(DFG_JIT)
+    void filter(const DFG::StructureAbstractValue&);
+    void filter(SpeculatedType);
+    void filterArrayModes(ArrayModes);
+    void filter(const DFG::AbstractValue&);
+#endif // ENABLE(DFG_JIT)
+    
+    SpeculatedType speculationFromStructures() const;
+    ArrayModes arrayModesFromStructures() const;
+    
+    void dumpInContext(PrintStream&, DumpContext*) const;
+    void dump(PrintStream&) const;
+    
+    void validateReferences(const TrackedReferences&) const;
+};
+
+} // namespace JSC
+
+#endif // StructureSet_h