JavaScriptCore-1097.3.tar.gz

[apple/javascriptcore.git] / dfg / DFGNodeFlags.cpp

diff --git a/dfg/DFGNodeFlags.cpp b/dfg/DFGNodeFlags.cpp
new file mode 100644 (file)
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--- /dev/null
+++ b/dfg/DFGNodeFlags.cpp
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2012 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. 
+ */
+
+#include "config.h"
+#include "DFGNodeFlags.h"
+
+#if ENABLE(DFG_JIT)
+
+#include <wtf/BoundsCheckedPointer.h>
+
+namespace JSC { namespace DFG {
+
+const char* nodeFlagsAsString(NodeFlags flags)
+{
+    if (!flags)
+        return "<empty>";
+
+    static const int size = 128;
+    static char description[size];
+    BoundsCheckedPointer<char> ptr(description, size);
+    
+    bool hasPrinted = false;
+    
+    if (flags & NodeResultMask) {
+        switch (flags & NodeResultMask) {
+        case NodeResultJS:
+            ptr.strcat("ResultJS");
+            break;
+        case NodeResultNumber:
+            ptr.strcat("ResultNumber");
+            break;
+        case NodeResultInt32:
+            ptr.strcat("ResultInt32");
+            break;
+        case NodeResultBoolean:
+            ptr.strcat("ResultBoolean");
+            break;
+        case NodeResultStorage:
+            ptr.strcat("ResultStorage");
+            break;
+        default:
+            ASSERT_NOT_REACHED();
+            break;
+        }
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeMustGenerate) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("MustGenerate");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeHasVarArgs) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("HasVarArgs");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeClobbersWorld) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("ClobbersWorld");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeMightClobber) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("MightClobber");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeUsedAsNumber) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("UsedAsNum");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeNeedsNegZero) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("NeedsNegZero");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeMayOverflow) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("MayOverflow");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeMayNegZero) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("MayNegZero");
+        hasPrinted = true;
+    }
+    
+    if (flags & NodeUsedAsInt) {
+        if (hasPrinted)
+            ptr.strcat("|");
+        ptr.strcat("UsedAsInt");
+        hasPrinted = true;
+    }
+    
+    *ptr++ = 0;
+    
+    return description;
+}
+
+
+} } // namespace JSC::DFG
+
+#endif // ENABLE(DFG_JIT)
+