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 import org.testng.Assert;
25 import org.testng.annotations.Test;
26 
27 import java.lang.reflect.code.OpTransformer;
28 import java.lang.reflect.code.op.CoreOp;
29 import java.lang.reflect.code.Op;
30 import java.lang.reflect.code.interpreter.Interpreter;
31 import java.lang.reflect.Method;
32 import java.lang.runtime.CodeReflection;
33 import java.util.List;
34 import java.util.Optional;
35 import java.util.stream.Stream;
36 
37 /*
38  * @test
39  * @run testng TestEnhancedForOp
40  */
41 
42 public class TestEnhancedForOp {
43 
44     @CodeReflection
45     public static int f() {
46         int j = 0;
47         for (int i : List.of(1, 2, 3, 4)) {
48             j += i;
49         }
50         return j;
51     }
52 
53     static CoreOp.FuncOp getFuncOp(String name) {
54         Optional<Method> om = Stream.of(TestEnhancedForOp.class.getDeclaredMethods())
55                 .filter(m -> m.getName().equals(name))
56                 .findFirst();
57 
58         Method m = om.get();
59         return m.getCodeModel().get();
60     }
61 
62     @Test
63     public void testf() {
64         CoreOp.FuncOp f = getFuncOp("f");
65 
66         f.writeTo(System.out);
67 
68         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
69 
70         lf.writeTo(System.out);
71 
72         Assert.assertEquals(Interpreter.invoke(lf), f());
73     }
74 
75 
76     @CodeReflection
77     public static int array(int[] a) {
78         int j = 0;
79         for (int i : a) {
80             j += i;
81         }
82         return j;
83     }
84 
85     @Test
86     public void testArray() {
87         CoreOp.FuncOp f = getFuncOp("array");
88 
89         f.writeTo(System.out);
90 
91         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
92 
93         lf.writeTo(System.out);
94 
95         int[] ia = new int[] {1, 2, 3, 4};
96         Assert.assertEquals(Interpreter.invoke(lf, ia), array(ia));
97     }
98 }