bytecode/CallEdge.h

   1 /*
   2  * Copyright (C) 2014, 2015 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef CallEdge_h
  27 #define CallEdge_h
  28
  29 #include "CallVariant.h"
  30
  31 namespace JSC {
  32
  33 class CallEdge {
  34 public:
  35     CallEdge();
  36     CallEdge(CallVariant, uint32_t);
  37
  38     bool operator!() const { return !m_callee; }
  39
  40     CallVariant callee() const { return m_callee; }
  41     uint32_t count() const { return m_count; }
  42
  43     CallEdge despecifiedClosure() const
  44     {
  45         return CallEdge(m_callee.despecifiedClosure(), m_count);
  46     }
  47
  48     void dump(PrintStream&) const;
  49
  50 private:
  51     CallVariant m_callee;
  52     uint32_t m_count;
  53 };
  54
  55 inline CallEdge::CallEdge(CallVariant callee, uint32_t count)
  56     : m_callee(callee)
  57     , m_count(count)
  58 {
  59 }
  60
  61 inline CallEdge::CallEdge()
  62     : CallEdge(CallVariant(), 0)
  63 {
  64 }
  65
  66 typedef Vector<CallEdge, 1> CallEdgeList;
  67
  68 } // namespace JSC
  69
  70 #endif // CallEdge_h
  71