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  */
  23 
  24 /*
  25  * @test
  26  * @bug 6754038 6979327
  27  * @summary Generate call sites for method handle
  28  * @author jrose
  29  *
  30  * @compile -source 7 -target 7 -XDallowTransitionalJSR292=no InvokeMH.java
  31  */
  32 
  33 /*
  34  * Standalone testing:
  35  * <code>
  36  * $ cd $MY_REPO_DIR/langtools
  37  * $ (cd make; make)
  38  * $ ./dist/bootstrap/bin/javac -d dist test/tools/javac/meth/InvokeMH.java
  39  * $ javap -c -classpath dist meth.InvokeMH
  40  * </code>
  41  */
  42 
  43 package meth;
  44 
  45 import java.lang.invoke.MethodHandle;
  46 
  47 public class InvokeMH {
  48     void test(MethodHandle mh_SiO,
  49               MethodHandle mh_vS,
  50               MethodHandle mh_vi,
  51               MethodHandle mh_vv) throws Throwable {
  52         Object o; String s; int i;  // for return type testing
  53 
  54         // next five must have sig = (String,int)Object
  55         mh_SiO.invokeExact("world", 123);
  56         mh_SiO.invokeExact("mundus", 456);
  57         Object k = "kosmos";
  58         mh_SiO.invokeExact((String)k, 789);
  59         o = mh_SiO.invokeExact((String)null, 000);
  60         o = (Object) mh_SiO.invokeExact("arda", -123);
  61 
  62         // sig = ()String
  63         s = (String) mh_vS.invokeExact();
  64 
  65         // sig = ()int
  66         i = (int) mh_vi.invokeExact();
  67         o = (int) mh_vi.invokeExact();
  68 
  69         // sig = ()void
  70         mh_vv.invokeExact();
  71     }
  72 
  73     void testGen(MethodHandle mh_SiO,
  74                  MethodHandle mh_vS,
  75                  MethodHandle mh_vi,
  76                  MethodHandle mh_vv) throws Throwable {
  77         Object o; String s; int i;  // for return type testing
  78 
  79         // next five must have sig = (*,*)*
  80         o = mh_SiO.invoke((Object)"world", (Object)123);
  81         mh_SiO.invoke((Object)"mundus", (Object)456);
  82         Object k = "kosmos";
  83         o = mh_SiO.invoke(k, 789);
  84         o = mh_SiO.invoke(null, 000);
  85         o = mh_SiO.invoke("arda", -123);
  86 
  87         // sig = ()String
  88         o = mh_vS.invoke();
  89 
  90         // sig = ()int
  91         i = (int) mh_vi.invoke();
  92         o = (int) mh_vi.invoke();
  93         mh_vi.invoke();
  94 
  95         // sig = ()void
  96         mh_vv.invoke();
  97         o = mh_vv.invoke();
  98     }
  99 }