From 6882a04fb36642862b11efe514251d32070c3d65 Mon Sep 17 00:00:00 2001 From: Konstantin Tokarev Date: Thu, 25 Aug 2016 19:20:41 +0300 Subject: Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443) Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f Reviewed-by: Konstantin Tokarev --- Source/JavaScriptCore/runtime/VMStackBounds.h | 71 --------------------------- 1 file changed, 71 deletions(-) delete mode 100644 Source/JavaScriptCore/runtime/VMStackBounds.h (limited to 'Source/JavaScriptCore/runtime/VMStackBounds.h') diff --git a/Source/JavaScriptCore/runtime/VMStackBounds.h b/Source/JavaScriptCore/runtime/VMStackBounds.h deleted file mode 100644 index 76a3ebd30..000000000 --- a/Source/JavaScriptCore/runtime/VMStackBounds.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (C) 2013 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 VMStackBounds_h -#define VMStackBounds_h - -#include "VM.h" -#include - -namespace JSC { - -class VMStackBounds { -public: - VMStackBounds(VM& vm, const StackBounds& bounds) - : m_vm(vm) - , m_bounds(bounds) - { - } - - bool isSafeToRecurse() const { return m_bounds.isSafeToRecurse(requiredCapacity()); } - -private: - inline size_t requiredCapacity() const - { - Interpreter* interpreter = m_vm.interpreter; - - // We have two separate stack limits, one for regular JS execution, and one - // for when we're handling errors. We need the error stack to be smaller - // otherwise there would obviously not be any stack left to execute JS in when - // there's a stack overflow. - // - // These sizes were derived from the stack usage of a number of sites when - // layout occurs when we've already consumed most of the C stack. - const size_t requiredStack = 128 * KB; - const size_t errorModeRequiredStack = 64 * KB; - - size_t requiredCapacity = interpreter->isInErrorHandlingMode() ? errorModeRequiredStack : requiredStack; - RELEASE_ASSERT(m_bounds.size() >= requiredCapacity); - return requiredCapacity; - } - - VM& m_vm; - const StackBounds& m_bounds; -}; - -} // namespace JSC - -#endif // VMStackBounds_h - -- cgit v1.2.1