JavaScriptCore-903.tar.gz

[apple/javascriptcore.git] / wtf / url / src / RawURLBuffer.h

diff --git a/wtf/url/src/RawURLBuffer.h b/wtf/url/src/RawURLBuffer.h
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+// Copyright 2010, Google 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:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+// OWNER 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.
+
+#ifndef RawURLBuffer_h
+#define RawURLBuffer_h
+
+#include "URLBuffer.h"
+#include <stdlib.h>
+
+namespace WTF {
+
+// Simple implementation of the URLBuffer using new[]. This class
+// also supports a static buffer so if it is allocated on the stack, most
+// URLs can be canonicalized with no heap allocations.
+template<typename CHAR, int inlineCapacity = 1024>
+class RawURLBuffer : public URLBuffer<CHAR> {
+public:
+    RawURLBuffer() : URLBuffer<CHAR>()
+    {
+        this->m_buffer = m_inlineBuffer;
+        this->m_capacity = inlineCapacity;
+    }
+
+    virtual ~RawURLBuffer()
+    {
+        if (this->m_buffer != m_inlineBuffer)
+            delete[] this->m_buffer;
+    }
+
+    virtual void resize(int size)
+    {
+        CHAR* newBuffer = new CHAR[size];
+        memcpy(newBuffer, this->m_buffer, sizeof(CHAR) * (this->m_length < size ? this->m_length : size));
+        if (this->m_buffer != m_inlineBuffer)
+            delete[] this->m_buffer;
+        this->m_buffer = newBuffer;
+        this->m_capacity = size;
+    }
+
+protected:
+    CHAR m_inlineBuffer[inlineCapacity];
+};
+
+} // namespace WTF
+
+#endif // RawURLBuffer_h