| /* |
| * Copyright (C) 2012 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 CallLinkStatus_h |
| #define CallLinkStatus_h |
| |
| namespace JSC { |
| |
| class JSFunction; |
| class CodeBlock; |
| |
| class CallLinkStatus { |
| public: |
| CallLinkStatus() |
| : m_callTarget(0) |
| , m_couldTakeSlowPath(false) |
| { |
| } |
| |
| CallLinkStatus(JSFunction* callTarget, bool couldTakeSlowPath) |
| : m_callTarget(callTarget) |
| , m_couldTakeSlowPath(couldTakeSlowPath) |
| { |
| } |
| |
| static CallLinkStatus computeFor(CodeBlock*, unsigned bytecodeIndex); |
| |
| bool isSet() const { return !!m_callTarget || m_couldTakeSlowPath; } |
| |
| bool operator!() const { return !isSet(); } |
| |
| bool couldTakeSlowPath() const { return m_couldTakeSlowPath; } |
| |
| JSFunction* callTarget() const { return m_callTarget; } |
| |
| private: |
| static CallLinkStatus computeFromLLInt(CodeBlock*, unsigned bytecodeIndex); |
| |
| JSFunction* m_callTarget; |
| bool m_couldTakeSlowPath; |
| }; |
| |
| } // namespace JSC |
| |
| #endif // CallLinkStatus_h |
| |