webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 128 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/PropertyName.h b/Source/JavaScriptCore/runtime/PropertyName.h
new file mode 100644
index 000000000..eaba62804
--- /dev/null
+++ b/Source/JavaScriptCore/runtime/PropertyName.h
@@ -0,0 +1,128 @@
+/*
+ * 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. AND ITS CONTRIBUTORS ``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 ITS 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 PropertyName_h
+#define PropertyName_h
+
+#include "Identifier.h"
+#include "PrivateName.h"
+#include <wtf/Optional.h>
+
+namespace JSC {
+
+class PropertyName {
+public:
+    PropertyName(UniquedStringImpl* propertyName)
+        : m_impl(propertyName)
+    {
+    }
+
+    PropertyName(const Identifier& propertyName)
+        : PropertyName(propertyName.impl())
+    {
+    }
+
+    PropertyName(const PrivateName& propertyName)
+        : m_impl(propertyName.uid())
+    {
+        ASSERT(m_impl);
+        ASSERT(m_impl->isSymbol());
+    }
+
+    bool isSymbol()
+    {
+        return m_impl && m_impl->isSymbol();
+    }
+
+    UniquedStringImpl* uid() const
+    {
+        return m_impl;
+    }
+
+    AtomicStringImpl* publicName() const
+    {
+        return (!m_impl || m_impl->isSymbol()) ? nullptr : static_cast<AtomicStringImpl*>(m_impl);
+    }
+
+    void dump(PrintStream& out) const
+    {
+        if (m_impl)
+            out.print(m_impl);
+        else
+            out.print("<null property name>");
+    }
+
+private:
+    UniquedStringImpl* m_impl;
+};
+
+inline bool operator==(PropertyName a, const Identifier& b)
+{
+    return a.uid() == b.impl();
+}
+
+inline bool operator==(const Identifier& a, PropertyName b)
+{
+    return a.impl() == b.uid();
+}
+
+inline bool operator==(PropertyName a, PropertyName b)
+{
+    return a.uid() == b.uid();
+}
+
+inline bool operator==(PropertyName a, const char* b)
+{
+    return equal(a.uid(), b);
+}
+
+inline bool operator!=(PropertyName a, const Identifier& b)
+{
+    return a.uid() != b.impl();
+}
+
+inline bool operator!=(const Identifier& a, PropertyName b)
+{
+    return a.impl() != b.uid();
+}
+
+inline bool operator!=(PropertyName a, PropertyName b)
+{
+    return a.uid() != b.uid();
+}
+
+ALWAYS_INLINE Optional<uint32_t> parseIndex(PropertyName propertyName)
+{
+    auto uid = propertyName.uid();
+    if (!uid)
+        return Nullopt;
+    if (uid->isSymbol())
+        return Nullopt;
+    return parseIndex(*uid);
+}
+
+}
+
+#endif