1 /*
   2  * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_CI_CIMETHODHANDLE_HPP
  26 #define SHARE_VM_CI_CIMETHODHANDLE_HPP
  27 
  28 #include "ci/ciCallProfile.hpp"
  29 #include "ci/ciInstance.hpp"
  30 #include "prims/methodHandles.hpp"
  31 
  32 // ciMethodHandle
  33 //
  34 // The class represents a java.lang.invoke.MethodHandle object.
  35 class ciMethodHandle : public ciInstance {
  36 private:
  37   ciMethod*      _callee;
  38   ciCallProfile* _profile;
  39 
  40   // Return an adapter for this MethodHandle.
  41   ciMethod* get_adapter(bool is_invokedynamic) const;
  42 
  43 protected:
  44   void print_impl(outputStream* st);
  45 
  46 public:
  47   ciMethodHandle(instanceHandle h_i) : ciInstance(h_i) {};
  48 
  49   // What kind of ciObject is this?
  50   bool is_method_handle() const { return true; }
  51 
  52   ciMethod* callee() const { return _callee; }
  53   void  set_callee(ciMethod* m) { _callee = m; }
  54 
  55   ciCallProfile*     call_profile() const                 { return _profile;           }
  56   void           set_call_profile(ciCallProfile* profile) {        _profile = profile; }
  57 
  58   // Return an adapter for a MethodHandle call.
  59   ciMethod* get_method_handle_adapter() const {
  60     return get_adapter(false);
  61   }
  62 
  63   // Return an adapter for an invokedynamic call.
  64   ciMethod* get_invokedynamic_adapter() const {
  65     return get_adapter(true);
  66   }
  67 };
  68 
  69 #endif // SHARE_VM_CI_CIMETHODHANDLE_HPP