Apply script preprocessor to Web page scripts only.

Source/bindings/v8/V8PerContextDebugData.h

+/*
+ * Copyright (C) 2012 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 V8PerContextDebugData_h
+#define V8PerContextDebugData_h
+
+#include <v8.h>
+#include "wtf/text/WTFString.h"
+
+namespace WebCore {
+
+enum V8ContextEmbedderDataField {
+    v8ContextDebugIdIndex,
+    v8ContextPerContextDataIndex,
+    v8ContextIsolatedWorld,
+    v8ContextCreatorIndex
+    // Rather than adding more embedder data fields to v8::Context,
+    // consider adding the data to V8PerContextData instead.
+};
+
+enum ContextCategory {
+    NoContextCategory,
+    PageContextCategory,
+    WorkerContextCategory,
+    ContentScriptContextCategory
+};
+
+class V8PerContextDebugData {
+public:
+    static bool setContextDebugData(v8::Handle<v8::Context>, const char* worldName, int debugId);
+    static int contextDebugId(v8::Handle<v8::Context>);
+    // returns 'page', 'injected', or 'worker'
+    static ContextCategory contextCategory(v8::Handle<v8::Context> context);
+
+     // During the lifetime of instances of this class a context is compiling Web-origin scripts,
+    // not eg system API bindings or debugger related injected scripts
+    class ScopedWebCompilation {
+    public:
+        ScopedWebCompilation(v8::Handle<v8::Context>, bool oneFunctionResult = false);
+        ~ScopedWebCompilation();
+    private:
+        friend class V8PerContextDebugData;
+        v8::Persistent<v8::Context> m_context;
+        bool m_oneFunctionResult;
+    };
+
+    // True if called during compilation of Web-origin JavaScript
+    static bool isScopedWebCompilation(v8::Handle<v8::Context> context);
+    // True if called during compilation of Web-origin JavaScript that must return a single function,
+    // eg event handlers on DOM elements.
+    static bool isOneFunctionWebCompilation();
+};
+
+} // namespace WebCore
+
+#endif // V8PerContextDebugData_h