JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / parser / SourceProvider.cpp

diff --git a/parser/SourceProvider.cpp b/parser/SourceProvider.cpp
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+/*
+ * Copyright (C) 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 "SourceProvider.h"
+#include <wtf/StdLibExtras.h>
+#include <wtf/TCSpinLock.h>
+
+namespace JSC {
+
+SourceProvider::SourceProvider(const String& url, const TextPosition& startPosition)
+    : m_url(url)
+    , m_startPosition(startPosition)
+    , m_validated(false)
+    , m_id(0)
+{
+}
+
+SourceProvider::~SourceProvider()
+{
+}
+
+static inline size_t charPositionExtractor(const size_t* value)
+{
+    return *value;
+}
+
+static TCMalloc_SpinLock providerIdLock = SPINLOCK_INITIALIZER;
+
+void SourceProvider::getID()
+{
+    SpinLockHolder lock(&providerIdLock);
+    if (!m_id) {
+        static intptr_t nextProviderID = 0;
+        m_id = ++nextProviderID;
+    }
+}
+
+} // namespace JSC
+