JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / ftl / FTLExitPropertyValue.h

diff --git a/ftl/FTLExitPropertyValue.h b/ftl/FTLExitPropertyValue.h
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+/*
+ * Copyright (C) 2014, 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 FTLExitPropertyValue_h
+#define FTLExitPropertyValue_h
+
+#if ENABLE(FTL_JIT)
+
+#include "DFGPromotedHeapLocation.h"
+#include "FTLExitValue.h"
+
+namespace JSC {
+
+class TrackedReferences;
+
+namespace FTL {
+
+class ExitPropertyValue {
+public:
+    ExitPropertyValue()
+    {
+    }
+    
+    ExitPropertyValue(DFG::PromotedLocationDescriptor location, const ExitValue& value)
+        : m_location(location)
+        , m_value(value)
+    {
+        ASSERT(!!location == !!value);
+    }
+    
+    bool operator!() const { return !m_location; }
+    
+    DFG::PromotedLocationDescriptor location() const { return m_location; }
+    const ExitValue& value() const { return m_value; }
+    
+    ExitPropertyValue withLocalsOffset(int offset) const;
+    
+    void dump(PrintStream& out) const;
+    
+    void validateReferences(const TrackedReferences&) const;
+
+private:
+    DFG::PromotedLocationDescriptor m_location;
+    ExitValue m_value;
+};
+
+} } // namespace JSC::FTL
+
+#endif // ENABLE(FTL_JIT)
+
+#endif // FTLExitPropertyValue_h
+