Index: third_party/WebKit/Source/wtf/text/AtomicStringTable.cpp |
diff --git a/third_party/WebKit/Source/wtf/text/AtomicStringTable.cpp b/third_party/WebKit/Source/wtf/text/AtomicStringTable.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a4fa7c44bcef9e47747b4bf743909ec396ffc369 |
--- /dev/null |
+++ b/third_party/WebKit/Source/wtf/text/AtomicStringTable.cpp |
@@ -0,0 +1,39 @@ |
+// Copyright 2016 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. |
+ |
+#include "wtf/text/AtomicStringTable.h" |
+ |
+namespace WTF { |
+ |
+AtomicStringTable::AtomicStringTable() |
+{ |
+ for (StringImpl* string : StringImpl::allStaticStrings().values()) |
+ addStringImpl(string); |
+} |
+ |
+AtomicStringTable::~AtomicStringTable() |
+{ |
+ for (StringImpl* string : m_table) { |
+ if (!string->isStatic()) { |
+ DCHECK(string->isAtomic()); |
+ string->setIsAtomic(false); |
+ } |
+ } |
+} |
+ |
+StringImpl* AtomicStringTable::addStringImpl(StringImpl* string) |
+{ |
+ if (!string->length()) |
+ return StringImpl::empty(); |
+ |
+ StringImpl* result = *m_table.add(string).storedValue; |
+ |
+ if (!result->isAtomic()) |
+ result->setIsAtomic(true); |
+ |
+ DCHECK(!string->isStatic() || result->isStatic()); |
+ return result; |
+} |
+ |
+} // namespace WTF |