1 files changed, 0 insertions, 99 deletions
diff --git a/Source/JavaScriptCore/heap/DFGCodeBlocks.h b/Source/JavaScriptCore/heap/DFGCodeBlocks.h
deleted file mode 100644
index 06fd5ed3d..000000000
--- a/Source/JavaScriptCore/heap/DFGCodeBlocks.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2011 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. 
- */
-
-#ifndef DFGCodeBlocks_h
-#define DFGCodeBlocks_h
-
-#include <wtf/FastAllocBase.h>
-#include <wtf/HashSet.h>
-#include <wtf/PassOwnPtr.h>
-
-namespace JSC {
-
-class CodeBlock;
-class SlotVisitor;
-
-// DFGCodeBlocks notifies the garbage collector about optimized code blocks that
-// have different marking behavior depending on whether or not they are on the
-// stack, and that may be jettisoned. Jettisoning is the process of discarding
-// a code block after all calls to it have been unlinked. This class takes special
-// care to ensure that if there are still call frames that are using the code
-// block, then it should not be immediately deleted, but rather, it should be
-// deleted once we know that there are no longer any references to it from any
-// call frames. This class takes its name from the DFG compiler; only code blocks
-// compiled by the DFG need special marking behavior if they are on the stack, and
-// only those code blocks may be jettisoned.
-
-#if ENABLE(DFG_JIT)
-class DFGCodeBlocks {
-    WTF_MAKE_FAST_ALLOCATED;
-
-public:
-    DFGCodeBlocks();
-    ~DFGCodeBlocks();
-    
-    // Inform the collector that a code block has been jettisoned form its
-    // executable and should only be kept alive if there are call frames that use
-    // it. This is typically called either from a recompilation trigger, or from
-    // an unconditional finalizer associated with a CodeBlock that had weak
-    // references, where some subset of those references were dead.
-    void jettison(PassOwnPtr<CodeBlock>);
-    
-    // Clear all mark bits associated with DFG code blocks.
-    void clearMarks();
-    
-    // Mark a pointer that may be a CodeBlock that belongs to the set of DFG code
-    // blocks. This is defined inline in CodeBlock.h
-    void mark(void* candidateCodeBlock);
-    
-    // Delete all jettisoned code blocks that have not been marked (i.e. are not referenced
-    // from call frames).
-    void deleteUnmarkedJettisonedCodeBlocks();
-    
-    // Trace all marked code blocks (i.e. are referenced from call frames). The CodeBlock
-    // is free to make use of m_dfgData->isMarked and m_dfgData->isJettisoned.
-    void traceMarkedCodeBlocks(SlotVisitor&);
-
-private:
-    friend class CodeBlock;
-    
-    HashSet<CodeBlock*> m_set;
-};
-#else
-class DFGCodeBlocks {
-    WTF_MAKE_FAST_ALLOCATED;
-
-public:
-    void jettison(PassOwnPtr<CodeBlock>);
-    void clearMarks() { }
-    void mark(void*) { }
-    void deleteUnmarkedJettisonedCodeBlocks() { }
-    void traceMarkedCodeBlocks(SlotVisitor&) { }
-};
-#endif
-
-} // namespace JSC
-
-#endif