1 /*
   2  * Copyright (c) 2011, 2018, 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 /*
  26  * @test
  27  *
  28  * @summary converted from VM Testbase vm/mlvm/meth/stress/java/sequences.
  29  * VM Testbase keywords: [feature_mlvm, nonconcurrent, quarantine]
  30  * VM Testbase comments: 8079714
  31  * VM Testbase readme:
  32  * DESCRIPTION
  33  *     Creates a sequence of method handles that manipulates arguments. The following manipulations are used:
  34  *     - Numeric conversions
  35  *     - Boxing and unboxing
  36  *     - Adding arguments, binding arguments
  37  *     - Deleting arguments
  38  *     - Reordering arguments
  39  *     - Array scattering and gathering
  40  *     - A MH that calls pair of methods ("guardWithTest")
  41  *     - The test calculates the "correct result" of calling the sequence of method handles by using it's own logic and compares it with the result of calling MHs.
  42  *
  43  * @library /vmTestbase
  44  *          /test/lib
  45  * @run driver jdk.test.lib.FileInstaller . .
  46  *
  47  * @comment build test class and indify classes
  48  * @build vm.mlvm.meth.stress.java.sequences.Test
  49  * @run driver vm.mlvm.share.IndifiedClassesBuilder
  50  *
  51  * @run main/othervm vm.mlvm.meth.stress.java.sequences.Test
  52  */
  53 
  54 package vm.mlvm.meth.stress.java.sequences;
  55 
  56 import java.lang.invoke.MethodHandle;
  57 import java.lang.invoke.MethodHandles;
  58 import java.lang.invoke.MethodType;
  59 
  60 import vm.mlvm.meth.share.Argument;
  61 import vm.mlvm.meth.share.MHTransformationGen;
  62 import vm.mlvm.meth.share.RandomArgumentsGen;
  63 import vm.mlvm.share.MlvmTest;
  64 
  65 public class Test extends MlvmTest {
  66 
  67     public static void main(String[] args) {
  68         MlvmTest.launch(args);
  69     }
  70 
  71     public static class Example {
  72         private Argument[] finalArgs;
  73         private boolean eqI;
  74         private boolean eqS;
  75         private boolean eqF;
  76 
  77         public String m0(int i, String s, Float f) {
  78             this.eqI = this.finalArgs[0].getValue().equals(i);
  79             this.eqS = this.finalArgs[1].getValue().equals(s);
  80             this.eqF = this.finalArgs[2].getValue().equals(f);
  81 
  82             return "i=" + i + " (" + this.eqI + "); " + "s=" + s + " (" + this.eqS
  83                     + "); " + "f=" + f + " (" + this.eqF + "); ";
  84         }
  85 
  86         public void setFinalArgs(Argument[] finalArgs) {
  87             this.finalArgs = finalArgs;
  88         }
  89 
  90         public boolean areParametersEqual() {
  91             return this.eqI && this.eqS && this.eqF;
  92         }
  93     }
  94 
  95     @Override
  96     public boolean run() throws Throwable {
  97 
  98         final Example e = new Example();
  99 
 100         final MethodHandle mhM0 = MethodHandles.lookup().findVirtual(
 101                 Example.class,
 102                 "m0",
 103                 MethodType.methodType(String.class, int.class, String.class, Float.class));
 104 
 105         Argument[] finalArgs = RandomArgumentsGen.createRandomArgs(true, mhM0.type());
 106         e.setFinalArgs(finalArgs);
 107 
 108         Argument finalRetVal = Argument.fromValue(e.m0((int) (Integer) finalArgs[0].getValue(), (String) finalArgs[1].getValue(), (Float) finalArgs[2].getValue()));
 109 
 110         MHTransformationGen.callSequence(MHTransformationGen.createSequence(finalRetVal, e, mhM0, finalArgs), false);
 111 
 112         if (!e.areParametersEqual()) {
 113             getLog().complain("Unexpected argument values were received at the final method");
 114             return false;
 115         }
 116 
 117         return true;
 118     }
 119 }