From 2bde8e466a4451c7319e3a072d118917957d6554 Mon Sep 17 00:00:00 2001 From: Steve Block Date: Wed, 25 May 2011 19:08:45 +0100 Subject: Merge WebKit at r82507: Initial merge by git Change-Id: I60ce9d780725b58b45e54165733a8ffee23b683e --- .../collector/handles/HandleStack.cpp | 63 ++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 Source/JavaScriptCore/collector/handles/HandleStack.cpp (limited to 'Source/JavaScriptCore/collector/handles/HandleStack.cpp') diff --git a/Source/JavaScriptCore/collector/handles/HandleStack.cpp b/Source/JavaScriptCore/collector/handles/HandleStack.cpp new file mode 100644 index 0000000..1c151af --- /dev/null +++ b/Source/JavaScriptCore/collector/handles/HandleStack.cpp @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2010 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. + */ + +#include "config.h" + +#include "HandleStack.h" + +#include "MarkStack.h" + +namespace JSC { + +HandleStack::HandleStack() +#ifndef NDEBUG + : m_scopeDepth(0) +#endif +{ + grow(); +} + +void HandleStack::mark(HeapRootMarker& heapRootMarker) +{ + const Vector& blocks = m_blockStack.blocks(); + size_t blockLength = m_blockStack.blockLength; + + int end = blocks.size() - 1; + for (int i = 0; i < end; ++i) { + HandleSlot block = blocks[i]; + heapRootMarker.mark(block, blockLength); + } + HandleSlot block = blocks[end]; + heapRootMarker.mark(block, m_frame.m_next - block); +} + +void HandleStack::grow() +{ + HandleSlot block = m_blockStack.grow(); + m_frame.m_next = block; + m_frame.m_end = block + m_blockStack.blockLength; +} + +} -- cgit v1.1