1/* 2 * Copyright (c) 2006, 2015, 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 * @bug 6380016 27 * @summary Test that the constraints guaranteed by the Filer and maintained 28 * @author Joseph D. Darcy 29 * @library /tools/javac/lib 30 * @modules java.compiler 31 * jdk.compiler 32 * @build JavacTestingAbstractProcessor TestNames 33 * @compile -processor TestNames -proc:only TestNames.java 34 */ 35 36import java.util.Set; 37import javax.annotation.processing.*; 38import javax.lang.model.SourceVersion; 39import static javax.lang.model.SourceVersion.*; 40import javax.lang.model.element.*; 41import javax.lang.model.util.*; 42import static javax.lang.model.util.ElementFilter.*; 43import static javax.tools.Diagnostic.Kind.*; 44import static javax.tools.StandardLocation.*; 45 46import java.io.*; 47 48/** 49 * Basic tests of semantics of javax.lang.model.element.Name 50 */ 51public class TestNames extends JavacTestingAbstractProcessor { 52 private int round = 0; 53 54 String stringStringName = "java.lang.String"; 55 Name stringName = null; 56 57 public boolean process(Set<? extends TypeElement> annotations, 58 RoundEnvironment roundEnv) { 59 round++; 60 if (!roundEnv.processingOver()) { 61 boolean failed = false; 62 63 switch(round) { 64 case 1: 65 66 TypeElement stringMirror = eltUtils.getTypeElement(stringStringName); 67 stringName = stringMirror.getQualifiedName(); 68 Name stringPseudoName = Pseudonym.getName(stringName.toString()); 69 70 71 if (stringName.equals(stringPseudoName)) 72 failed = true; 73 if (!stringName.contentEquals(stringStringName)) 74 failed = true; 75 if (!stringName.contentEquals(stringPseudoName)) 76 failed = true; 77 78 79 try { 80 // Force another round with a new context 81 PrintWriter pw = new PrintWriter(filer.createSourceFile("Foo").openWriter()); 82 pw.println("public class Foo {}"); 83 pw.close(); 84 } catch (IOException ioe) { 85 throw new RuntimeException(); 86 } 87 break; 88 89 case 2: 90 Name stringStringAsName = eltUtils.getName(stringStringName); 91 TypeElement stringMirror2 = eltUtils.getTypeElement(stringStringName); 92 Name stringName2 = stringMirror2.getQualifiedName(); 93 94 if (stringStringAsName != stringName || 95 stringName != stringName2) 96 failed = true; 97 break; 98 99 default: 100 throw new RuntimeException("Unexpected round " + round); 101 } 102 103 if (failed) 104 throw new RuntimeException("Invalid name equality checks."); 105 } 106 return true; 107 } 108 109 private static class Pseudonym implements Name { 110 private String name; 111 112 private Pseudonym(String name) { 113 this.name = name; 114 } 115 116 public static Pseudonym getName(String name) { 117 return new Pseudonym(name); 118 } 119 120 public boolean contentEquals(CharSequence cs) { 121 return name.contentEquals(cs); 122 } 123 124 public char charAt(int index) { 125 return name.charAt(index); 126 } 127 128 public int length() { 129 return name.length(); 130 } 131 132 public CharSequence subSequence(int start, int end) { 133 return name.subSequence(start, end); 134 } 135 136 public String toString() { 137 return name; 138 } 139 } 140} 141