JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / bytecode / ExitKind.cpp

diff --git a/bytecode/ExitKind.cpp b/bytecode/ExitKind.cpp
new file mode 100644 (file)
index 0000000..a8d9045
--- /dev/null
+++ b/bytecode/ExitKind.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2012, 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. 
+ */
+
+#include "config.h"
+#include "ExitKind.h"
+
+#include <wtf/Assertions.h>
+#include <wtf/PrintStream.h>
+
+namespace JSC {
+
+const char* exitKindToString(ExitKind kind)
+{
+    switch (kind) {
+    case ExitKindUnset:
+        return "Unset";
+    case BadType:
+        return "BadType";
+    case BadFunction:
+        return "BadFunction";
+    case BadExecutable:
+        return "BadExecutable";
+    case BadCache:
+        return "BadCache";
+    case BadWeakConstantCache:
+        return "BadWeakConstantCache";
+    case BadIndexingType:
+        return "BadIndexingType";
+    case Overflow:
+        return "Overflow";
+    case NegativeZero:
+        return "NegativeZero";
+    case StoreToHole:
+        return "StoreToHole";
+    case LoadFromHole:
+        return "LoadFromHole";
+    case OutOfBounds:
+        return "OutOfBounds";
+    case StoreToHoleOrOutOfBounds:
+        return "StoreToHoleOrOutOfBounds";
+    case InadequateCoverage:
+        return "InadequateCoverage";
+    case ArgumentsEscaped:
+        return "ArgumentsEscaped";
+    case NotStringObject:
+        return "NotStringObject";
+    case Uncountable:
+        return "Uncountable";
+    case UncountableWatchpoint:
+        return "UncountableWatchpoint";
+    default:
+        RELEASE_ASSERT_NOT_REACHED();
+        return "Unknown";
+    }
+}
+
+bool exitKindIsCountable(ExitKind kind)
+{
+    switch (kind) {
+    case ExitKindUnset:
+        RELEASE_ASSERT_NOT_REACHED();
+    case BadType:
+    case Uncountable:
+    case UncountableWatchpoint:
+    case LoadFromHole: // Already counted directly by the baseline JIT.
+    case StoreToHole: // Already counted directly by the baseline JIT.
+    case OutOfBounds: // Already counted directly by the baseline JIT.
+    case StoreToHoleOrOutOfBounds: // Already counted directly by the baseline JIT.
+        return false;
+    default:
+        return true;
+    }
+}
+
+} // namespace JSC
+
+namespace WTF {
+
+void printInternal(PrintStream& out, JSC::ExitKind kind)
+{
+    out.print(exitKindToString(kind));
+}
+
+} // namespace WTF
+