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 jdk.incubator.code.Op; 25 import org.testng.Assert; 26 import org.testng.annotations.Test; 27 import org.testng.annotations.DataProvider; 28 29 import java.lang.invoke.MethodHandles; 30 import java.lang.reflect.InvocationTargetException; 31 import java.lang.reflect.Method; 32 import jdk.incubator.code.interpreter.Interpreter; 33 import jdk.incubator.code.dialect.core.CoreOp; 34 import jdk.incubator.code.CodeReflection; 35 import java.util.*; 36 37 /* 38 * @test 39 * @modules jdk.incubator.code 40 * @run testng TestOverloads 41 */ 42 43 public class TestOverloads { 44 45 @CodeReflection 46 static int f() { 47 return 0; 48 } 49 50 @CodeReflection 51 static int f(int i) { 52 return 1; 53 } 54 55 @CodeReflection 56 static int f(Integer i) { 57 return 2; 58 } 59 60 @CodeReflection 61 static int f(Object o) { 62 return 3; 63 } 64 65 @CodeReflection 66 static int f(List<Integer> l) { 67 return 4; 68 } 69 70 @CodeReflection 71 static int f(List<Integer> l, Object o) { 72 return 5; 73 } 74 75 @DataProvider(name = "testData") 76 public static Object[][] testData() { 77 return new Object[][]{ 78 new Object[] {new Class[]{}, new Object[]{}}, 79 new Object[] {new Class[]{int.class}, new Object[]{-1}}, 80 new Object[] {new Class[]{Integer.class}, new Object[]{-1}}, 81 new Object[] {new Class[]{Object.class}, new Object[]{"hello"}}, 82 new Object[] {new Class[]{List.class}, new Object[]{List.of()}}, 83 new Object[] {new Class[]{List.class, Object.class}, new Object[]{List.of(), -1}} 84 }; 85 } 86 87 @Test(dataProvider = "testData") 88 public static void testOverloads(Class<?>[] paramTypes, Object[] params) { 89 try { 90 Class<TestOverloads> clazz = TestOverloads.class; 91 Method method = clazz.getDeclaredMethod("f", paramTypes); 92 CoreOp.FuncOp f = Op.ofMethod(method).orElseThrow(); 93 var res1 = Interpreter.invoke(MethodHandles.lookup(), f, params); 94 var res2 = method.invoke(null, params); 95 96 Assert.assertEquals(res1, res2); 97 98 } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) { 99 throw new RuntimeException(e); 100 } 101 } 102 }