From 40736c5763bf61337c8c14e16d8587db021a87d4 Mon Sep 17 00:00:00 2001 From: Simon Hausmann Date: Fri, 6 Jan 2012 14:44:00 +0100 Subject: Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285) --- Source/JavaScriptCore/bytecode/JumpTable.cpp | 47 ++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Source/JavaScriptCore/bytecode/JumpTable.cpp (limited to 'Source/JavaScriptCore/bytecode/JumpTable.cpp') diff --git a/Source/JavaScriptCore/bytecode/JumpTable.cpp b/Source/JavaScriptCore/bytecode/JumpTable.cpp new file mode 100644 index 000000000..ef7098b65 --- /dev/null +++ b/Source/JavaScriptCore/bytecode/JumpTable.cpp @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2008 Apple Inc. All rights reserved. + * Copyright (C) 2008 Cameron Zwarich + * + * 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. + * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE 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 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 "JumpTable.h" + +#include + +namespace JSC { + +int32_t SimpleJumpTable::offsetForValue(int32_t value, int32_t defaultOffset) +{ + if (value >= min && static_cast(value - min) < branchOffsets.size()) { + int32_t offset = branchOffsets[value - min]; + if (offset) + return offset; + } + return defaultOffset; +} + +} // namespace JSC -- cgit v1.2.1