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 testng TestBlockParameters
28  */
29 
30 import jdk.incubator.code.dialect.java.JavaOp;
31 import org.testng.Assert;
32 import org.testng.annotations.Test;
33 
34 import jdk.incubator.code.Block;
35 import jdk.incubator.code.CodeElement;
36 import jdk.incubator.code.Op;
37 import jdk.incubator.code.dialect.core.FunctionType;
38 import jdk.incubator.code.dialect.java.JavaType;
39 
40 import static jdk.incubator.code.dialect.core.CoreOp.*;
41 import static jdk.incubator.code.dialect.core.CoreType.functionType;
42 import static jdk.incubator.code.dialect.java.JavaType.INT;
43 
44 public class TestBlockParameters {
45     static FuncOp m() {
46         return func("f", functionType(INT, INT, INT))
47                 .body(fe -> {
48                     JavaOp.LambdaOp lop = JavaOp.lambda(fe.parentBody(), functionType(INT, INT), JavaType.type(FunctionType.class))
49                             .body(le -> {
50                                 le.op(_return(le.parameters().get(0)));
51                             });
52                     fe.op(lop);
53                     Block.Builder b = fe.block(INT, INT);
54                     fe.op(branch(b.successor(fe.parameters())));
55 
56                     b.op(_return(b.parameters().get(0)));
57                 });
58     }
59 
60     @Test
61     public void t() {
62         FuncOp m = m();
63         m.traverse(null, CodeElement.blockVisitor((_, b) -> {
64             for (Block.Parameter p : b.parameters()) {
65                 testBlockParameter(p);
66             }
67 
68             return null;
69         }));
70     }
71 
72     void testBlockParameter(Block.Parameter p) {
73         Assert.assertEquals(p.index(), p.declaringBlock().parameters().indexOf(p));
74 
75         if (p.invokableOperation() instanceof Op.Invokable iop) {
76             Assert.assertTrue(p.declaringBlock().isEntryBlock());
77             Assert.assertEquals(p.index(), iop.parameters().indexOf(p));
78         } else {
79             // There are no non-invokable operations with bodies in the model
80             Assert.assertFalse(p.declaringBlock().isEntryBlock());
81         }
82     }
83 }