JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / heap / CardSet.h

diff --git a/heap/CardSet.h b/heap/CardSet.h
deleted file mode 100644 (file)
index dc44c02..0000000
--- a/heap/CardSet.h
+++ /dev/null
@@ -1,91 +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. AND ITS 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 APPLE INC. OR ITS 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 CardSet_h
-#define CardSet_h
-
-#include <stdint.h>
-#include <wtf/Assertions.h>
-#include <wtf/Noncopyable.h>
-
-namespace JSC {
-
-template <size_t cardSize, size_t blockSize> class CardSet {
-    WTF_MAKE_NONCOPYABLE(CardSet);
-
-public:
-    static const size_t cardCount = (blockSize + cardSize - 1) / cardSize;
-
-    CardSet()
-    {
-        memset(m_cards, 0, cardCount);
-    }
-
-    bool isCardMarkedForAtom(const void*);
-    void markCardForAtom(const void*);
-    uint8_t& cardForAtom(const void*);
-    bool isCardMarked(size_t);
-    bool testAndClear(size_t);
-
-private:
-    uint8_t m_cards[cardCount];
-    COMPILE_ASSERT(!(cardSize & (cardSize - 1)), cardSet_cardSize_is_power_of_two);
-    COMPILE_ASSERT(!(cardCount & (cardCount - 1)), cardSet_cardCount_is_power_of_two);
-};
-
-template <size_t cardSize, size_t blockSize> uint8_t& CardSet<cardSize, blockSize>::cardForAtom(const void* ptr)
-{
-    ASSERT(ptr > this && ptr < (reinterpret_cast<char*>(this) + cardCount * cardSize));
-    uintptr_t card = (reinterpret_cast<uintptr_t>(ptr) / cardSize) % cardCount;
-    return m_cards[card];
-}
-
-template <size_t cardSize, size_t blockSize> bool CardSet<cardSize, blockSize>::isCardMarkedForAtom(const void* ptr)
-{
-    return cardForAtom(ptr);
-}
-
-template <size_t cardSize, size_t blockSize> void CardSet<cardSize, blockSize>::markCardForAtom(const void* ptr)
-{
-    cardForAtom(ptr) = 1;
-}
-
-template <size_t cardSize, size_t blockSize> bool CardSet<cardSize, blockSize>::isCardMarked(size_t i)
-{
-    ASSERT(i < cardCount);
-    return m_cards[i];
-}
-
-template <size_t cardSize, size_t blockSize> bool CardSet<cardSize, blockSize>::testAndClear(size_t i)
-{
-    ASSERT(i < cardCount);
-    bool result = m_cards[i];
-    m_cards[i] = 0;
-    return result;
-}
-
-}
-
-#endif