1 /* 2 * Copyright (c) 2018, 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 Check code generation for value creation ops 27 * @modules jdk.compiler/com.sun.tools.javac.util jdk.jdeps/com.sun.tools.javap 28 * @compile WithFieldOfExplicitSelector.java 29 * @run main/othervm -Xverify:none -XX:+EnableValhalla WithFieldOfExplicitSelector 30 * @modules jdk.compiler 31 */ 32 33 import java.io.PrintWriter; 34 import java.io.StringWriter; 35 import java.nio.file.Paths; 36 37 public class WithFieldOfExplicitSelector { 38 39 final __ByValue class X { 40 41 final int i; 42 43 X() { 44 i = 10; 45 } 46 47 X getX(int i, Integer in) { 48 X xl = __WithField(this.i, i); 49 xl = __WithField(xl.i, in); 50 return xl; 51 } 52 } 53 54 public static void main(String[] args) { 55 new WithFieldOfExplicitSelector().run(); 56 } 57 58 void run() { 59 String [] params = new String [] { "-v", 60 Paths.get(System.getProperty("test.classes"), 61 "WithFieldOfExplicitSelector$X.class").toString() }; 62 runCheck(params, new String [] { 63 64 "0: aload_0", 65 "1: iload_1", 66 "2: withfield #2 // Field i:I", 67 "5: astore_3", 68 "6: aload_3", 69 "7: aload_2", 70 "8: invokevirtual #3 // Method java/lang/Integer.intValue:()I", 71 "11: withfield #2 // Field i:I", 72 "14: astore_3", 73 "15: aload_3", 74 "16: areturn" 75 }); 76 } 77 78 void runCheck(String [] params, String [] expectedOut) { 79 StringWriter s; 80 String out; 81 82 try (PrintWriter pw = new PrintWriter(s = new StringWriter())) { 83 com.sun.tools.javap.Main.run(params, pw); 84 out = s.toString(); 85 } 86 int errors = 0; 87 for (String eo: expectedOut) { 88 if (!out.contains(eo)) { 89 System.err.println("Match not found for string: " + eo); 90 errors++; 91 } 92 } 93 if (errors > 0) { 94 throw new AssertionError("Unexpected javap output: " + out); 95 } 96 } 97 }