1 /*
2  * Copyright (c) 2014, 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.
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22  */
23 package org.openjdk.bench.java.lang.invoke;
24 
25 import org.openjdk.jmh.annotations.Benchmark;
26 import org.openjdk.jmh.annotations.BenchmarkMode;
27 import org.openjdk.jmh.annotations.Mode;
28 import org.openjdk.jmh.annotations.OutputTimeUnit;
29 import org.openjdk.jmh.annotations.Scope;
30 import org.openjdk.jmh.annotations.Setup;
31 import org.openjdk.jmh.annotations.State;
32 
33 import java.lang.invoke.MethodType;
34 import java.util.concurrent.TimeUnit;
35 
36 /**
37  * Benchmark assesses the MethodType.erase() performance
38  */
39 @BenchmarkMode(Mode.AverageTime)
40 @OutputTimeUnit(TimeUnit.NANOSECONDS)
41 @State(Scope.Benchmark)
42 public class MethodTypeGenerify {
43 
44     private MethodType mt;
45 
46     @Setup
setup()47     public void setup() {
48         mt = MethodType.methodType(void.class, int.class, Integer.class);
49     }
50 
51     @Benchmark
baselineRaw()52     public MethodType baselineRaw() {
53         return mt;
54     }
55 
56     @Benchmark
testGeneric()57     public MethodType testGeneric() {
58         return mt.generic();
59     }
60 
61     @Benchmark
testWrapErase()62     public MethodType testWrapErase() {
63         return mt.wrap().erase();
64     }
65 
66     @Benchmark
testErase()67     public MethodType testErase() {
68         return mt.erase();
69     }
70 
71     @Benchmark
testWrap()72     public MethodType testWrap() {
73         return mt.wrap();
74     }
75 
76     @Benchmark
testUnwrap()77     public MethodType testUnwrap() {
78         return mt.unwrap();
79     }
80 
81 }
82