1 files changed, 91 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/ftl/FTLExitArgument.h b/Source/JavaScriptCore/ftl/FTLExitArgument.h
new file mode 100644
index 000000000..74c27d9d3
--- /dev/null
+++ b/Source/JavaScriptCore/ftl/FTLExitArgument.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2013 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 FTLExitArgument_h
+#define FTLExitArgument_h
+
+#if ENABLE(FTL_JIT)
+
+#include "DataFormat.h"
+#include <wtf/PrintStream.h>
+
+namespace JSC { namespace FTL {
+
+struct ExitArgumentRepresentation {
+    DataFormat format;
+    unsigned argument;
+};
+
+class ExitArgument {
+public:
+    ExitArgument()
+    {
+        m_representation.format = DataFormatNone;
+    }
+    
+    ExitArgument(DataFormat format, unsigned argument)
+    {
+        m_representation.format = format;
+        m_representation.argument = argument;
+    }
+    
+    explicit ExitArgument(ExitArgumentRepresentation representation)
+    {
+        m_representation = representation;
+    }
+    
+    bool operator!() const { return m_representation.format == DataFormatNone; }
+    
+    DataFormat format() const
+    {
+        ASSERT(*this);
+        return m_representation.format;
+    }
+    
+    unsigned argument() const
+    {
+        ASSERT(*this);
+        return m_representation.argument;
+    }
+    
+    ExitArgument withFormat(DataFormat format)
+    {
+        return ExitArgument(format, argument());
+    }
+
+    ExitArgumentRepresentation representation() const { return m_representation; }
+    
+    void dump(PrintStream&) const;
+    
+private:
+    ExitArgumentRepresentation m_representation;
+};
+
+} } // namespace JSC::FTL
+
+#endif // ENABLE(FTL_JIT)
+
+#endif // FTLExitArgument_h
+