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.Optional; 34 import java.util.stream.Stream; 35 36 /* 37 * @test 38 * @run testng TestWhileOp 39 */ 40 41 public class TestWhileOp { 42 43 @CodeReflection 44 public static int whileLoop() { 45 int i = 0; 46 while (i < 10) { 47 i++; 48 } 49 return i; 50 } 51 52 @Test 53 public void testWhileLoop() { 54 CoreOp.FuncOp f = getFuncOp("whileLoop"); 55 56 f.writeTo(System.out); 57 58 CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER); 59 60 lf.writeTo(System.out); 61 62 Assert.assertEquals(Interpreter.invoke(lf), whileLoop()); 63 } 64 65 @CodeReflection 66 public static int doWhileLoop() { 67 int i = 0; 68 do { 69 i++; 70 } while (i < 10); 71 return i; 72 } 73 74 @Test 75 public void testDpWhileLoop() { 76 CoreOp.FuncOp f = getFuncOp("doWhileLoop"); 77 78 f.writeTo(System.out); 79 80 CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER); 81 82 lf.writeTo(System.out); 83 84 Assert.assertEquals(Interpreter.invoke(lf), doWhileLoop()); 85 } 86 87 static CoreOp.FuncOp getFuncOp(String name) { 88 Optional<Method> om = Stream.of(TestWhileOp.class.getDeclaredMethods()) 89 .filter(m -> m.getName().equals(name)) 90 .findFirst(); 91 92 Method m = om.get(); 93 return m.getCodeModel().get(); 94 } 95 }