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  * @modules jdk.incubator.code
27  * @run junit TestConditionalExpression
28  */
29 
30 import jdk.incubator.code.CodeReflection;
31 import jdk.incubator.code.Op;
32 import jdk.incubator.code.OpTransformer;
33 import jdk.incubator.code.dialect.core.CoreOp;
34 import jdk.incubator.code.interpreter.Interpreter;
35 import org.junit.jupiter.api.Assertions;
36 import org.junit.jupiter.api.Test;
37 
38 import java.lang.invoke.MethodHandles;
39 import java.lang.reflect.Method;
40 import java.util.Optional;
41 import java.util.stream.Stream;
42 
43 public class TestConditionalExpression {
44     @CodeReflection
45     public static int simpleExpression(boolean b, int x, int y) {
46         return b ? x : y;
47     }
48 
49     @Test
50     public void testSimpleExpression() {
51         CoreOp.FuncOp f = getFuncOp("simpleExpression");
52 
53         System.out.println(f.toText());
54 
55         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
56 
57         System.out.println(lf.toText());
58 
59         Assertions.assertEquals(simpleExpression(true, 1, 2), Interpreter.invoke(MethodHandles.lookup(), lf, true, 1, 2));
60         Assertions.assertEquals(simpleExpression(false, 1, 2), Interpreter.invoke(MethodHandles.lookup(), lf, false, 1, 2));
61     }
62 
63 
64     static CoreOp.FuncOp getFuncOp(String name) {
65         Optional<Method> om = Stream.of(TestConditionalExpression.class.getDeclaredMethods())
66                 .filter(m -> m.getName().equals(name))
67                 .findFirst();
68 
69         Method m = om.get();
70         return Op.ofMethod(m).get();
71     }
72 }