1 /*
 2  * Copyright (c) 2024, 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  * @run testng TestConditionalExpression
27  */
28 
29 import org.testng.Assert;
30 import org.testng.annotations.Test;
31 
32 import java.lang.reflect.code.OpTransformer;
33 import java.lang.reflect.code.op.CoreOp;
34 import java.lang.reflect.code.Op;
35 import java.lang.reflect.code.interpreter.Interpreter;
36 import java.lang.reflect.Method;
37 import java.lang.runtime.CodeReflection;
38 import java.util.Optional;
39 import java.util.stream.Stream;
40 
41 public class TestConditionalExpression {
42     @CodeReflection
43     public static int simpleExpression(boolean b, int x, int y) {
44         return b ? x : y;
45     }
46 
47     @Test
48     public void testSimpleExpression() {
49         CoreOp.FuncOp f = getFuncOp("simpleExpression");
50 
51         f.writeTo(System.out);
52 
53         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
54 
55         lf.writeTo(System.out);
56 
57         Assert.assertEquals(Interpreter.invoke(lf, true, 1, 2), simpleExpression(true, 1, 2));
58         Assert.assertEquals(Interpreter.invoke(lf, false, 1, 2), simpleExpression(false, 1, 2));
59     }
60 
61 
62     static CoreOp.FuncOp getFuncOp(String name) {
63         Optional<Method> om = Stream.of(TestConditionalExpression.class.getDeclaredMethods())
64                 .filter(m -> m.getName().equals(name))
65                 .findFirst();
66 
67         Method m = om.get();
68         return m.getCodeModel().get();
69     }
70 }