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 * @summary Smoke test for captured values in local classes. 27 * @modules jdk.incubator.code 28 * @run junit TestLocalCapture 29 */ 30 31 import jdk.incubator.code.Op; 32 33 import java.lang.invoke.MethodHandles; 34 import java.lang.reflect.Method; 35 import jdk.incubator.code.interpreter.Interpreter; 36 import jdk.incubator.code.dialect.core.CoreOp.FuncOp; 37 import jdk.incubator.code.CodeReflection; 38 import org.junit.jupiter.api.Assertions; 39 import org.junit.jupiter.params.ParameterizedTest; 40 import org.junit.jupiter.params.provider.MethodSource; 41 42 import java.util.stream.IntStream; 43 44 public class TestLocalCapture { 45 46 int x = 13; 47 final int CONST = 1; 48 49 @CodeReflection 50 public int sum(int y, int z) { 51 final int localConst = 2; 52 class Foo { 53 int sum(int z) { return localConst + x + y + z + CONST; }; 54 } 55 return new Foo().sum(z); 56 } 57 58 @ParameterizedTest 59 @MethodSource("ints") 60 public void testLocalCapture(int y) throws ReflectiveOperationException { 61 Method sum = TestLocalCapture.class.getDeclaredMethod("sum", int.class, int.class); 62 FuncOp model = Op.ofMethod(sum).get(); 63 int found = (int)Interpreter.invoke(MethodHandles.lookup(), model, this, y, 17); 64 int expected = sum(y, 17); 65 Assertions.assertEquals(expected, found); 66 } 67 68 public static IntStream ints() { 69 return IntStream.range(0, 50); 70 } 71 }