1 /*
   2  * Copyright (c) 2008, 2010, 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  *

 120       if (cur_slot == arg_slot)
 121         return T_OBJECT;
 122     }
 123     for (SignatureStream ss(m->signature()); !ss.is_done(); ss.next()) {
 124       BasicType bt = ss.type();
 125       cur_slot -= type2size[bt];
 126       if (cur_slot <= arg_slot) {
 127         if (cur_slot == arg_slot)
 128           arg_type = bt;
 129         break;
 130       }
 131     }
 132   }
 133   if (arg_type == T_ARRAY)
 134     arg_type = T_OBJECT;
 135   return arg_type;
 136 }
 137 
 138 
 139 void MethodHandleChain::lose(const char* msg, TRAPS) {
 140   assert(false, "lose");
 141   _lose_message = msg;
 142   if (!THREAD->is_Java_thread() || ((JavaThread*)THREAD)->thread_state() != _thread_in_vm) {
 143     // throw a preallocated exception
 144     THROW_OOP(Universe::virtual_machine_error_instance());
 145   }
 146   THROW_MSG(vmSymbols::java_lang_InternalError(), msg);
 147 }
 148 
 149 
 150 // -----------------------------------------------------------------------------
 151 // MethodHandleWalker
 152 
 153 Bytecodes::Code MethodHandleWalker::conversion_code(BasicType src, BasicType dest) {
 154   if (is_subword_type(src)) {
 155     src = T_INT;          // all subword src types act like int
 156   }
 157   if (src == dest) {
 158     return Bytecodes::_nop;
 159   }
 160 

   1 /*
   2  * Copyright (c) 2008, 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  *

 120       if (cur_slot == arg_slot)
 121         return T_OBJECT;
 122     }
 123     for (SignatureStream ss(m->signature()); !ss.is_done(); ss.next()) {
 124       BasicType bt = ss.type();
 125       cur_slot -= type2size[bt];
 126       if (cur_slot <= arg_slot) {
 127         if (cur_slot == arg_slot)
 128           arg_type = bt;
 129         break;
 130       }
 131     }
 132   }
 133   if (arg_type == T_ARRAY)
 134     arg_type = T_OBJECT;
 135   return arg_type;
 136 }
 137 
 138 
 139 void MethodHandleChain::lose(const char* msg, TRAPS) {

 140   _lose_message = msg;
 141   if (!THREAD->is_Java_thread() || ((JavaThread*)THREAD)->thread_state() != _thread_in_vm) {
 142     // throw a preallocated exception
 143     THROW_OOP(Universe::virtual_machine_error_instance());
 144   }
 145   THROW_MSG(vmSymbols::java_lang_InternalError(), msg);
 146 }
 147 
 148 
 149 // -----------------------------------------------------------------------------
 150 // MethodHandleWalker
 151 
 152 Bytecodes::Code MethodHandleWalker::conversion_code(BasicType src, BasicType dest) {
 153   if (is_subword_type(src)) {
 154     src = T_INT;          // all subword src types act like int
 155   }
 156   if (src == dest) {
 157     return Bytecodes::_nop;
 158   }
 159