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Unified Diff: Source/core/css/CSSLocalNameToLowerMaps.h

Issue 1099963003: Support type selector for camel-cased SVG elements in HTML. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Fix performance regression. tagMatches() became too big to be inlined on Linux. Created 5 years, 8 months ago
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Index: Source/core/css/CSSLocalNameToLowerMaps.h
diff --git a/Source/core/css/CSSLocalNameToLowerMaps.h b/Source/core/css/CSSLocalNameToLowerMaps.h
new file mode 100644
index 0000000000000000000000000000000000000000..7684549a01954d21fad85ebf66b48ca02e95c3c4
--- /dev/null
+++ b/Source/core/css/CSSLocalNameToLowerMaps.h
@@ -0,0 +1,50 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CSSLocalNameToLowerMaps_h
+#define CSSLocalNameToLowerMaps_h
+
+#include "wtf/HashMap.h"
+#include "wtf/text/AtomicString.h"
+#include "wtf/text/AtomicStringHash.h"
+
+namespace blink {
+
+namespace CSSLocalNameToLowerMaps {
+
+extern HashMap<AtomicString, AtomicString>* s_elementToLowerMap;
+extern HashMap<AtomicString, AtomicString>* s_attributeToLowerMap;
+
+void buildElementToLowerMap();
+void buildAttributeToLowerMap();
+
+inline const HashMap<AtomicString, AtomicString>& ensureElementToLowerMap()
+{
+ if (!s_elementToLowerMap)
+ buildElementToLowerMap();
+ return *s_elementToLowerMap;
+}
+
+inline const HashMap<AtomicString, AtomicString>& ensureAttributeToLowerMap()
+{
+ if (!s_attributeToLowerMap)
+ buildAttributeToLowerMap();
+ return *s_attributeToLowerMap;
+}
+
+inline AtomicString elementToLower(const AtomicString& elementName)
+{
+ return ensureElementToLowerMap().get(elementName);
+}
+
+inline AtomicString attributeToLower(const AtomicString& attributeName)
+{
+ return ensureAttributeToLowerMap().get(attributeName);
+}
+
+} // namespace CSSLocalNameToLowerMaps
+
+} // namespace blink
+
+#endif // CSSLocalNameToLowerMaps_h

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