Thu, 31 Aug 2017 15:17:03 +0800
merge
1 /*
2 * Copyright (c) 2006, 2010, 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 */
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 * @build JavacTestingAbstractProcessor TestNames
31 * @compile -processor TestNames -proc:only TestNames.java
32 */
34 import java.util.Set;
35 import javax.annotation.processing.*;
36 import javax.lang.model.SourceVersion;
37 import static javax.lang.model.SourceVersion.*;
38 import javax.lang.model.element.*;
39 import javax.lang.model.util.*;
40 import static javax.lang.model.util.ElementFilter.*;
41 import static javax.tools.Diagnostic.Kind.*;
42 import static javax.tools.StandardLocation.*;
44 import java.io.*;
46 /**
47 * Basic tests of semantics of javax.lang.model.element.Name
48 */
49 public class TestNames extends JavacTestingAbstractProcessor {
50 private int round = 0;
52 String stringStringName = "java.lang.String";
53 Name stringName = null;
55 public boolean process(Set<? extends TypeElement> annotations,
56 RoundEnvironment roundEnv) {
57 round++;
58 if (!roundEnv.processingOver()) {
59 boolean failed = false;
61 switch(round) {
62 case 1:
64 TypeElement stringMirror = eltUtils.getTypeElement(stringStringName);
65 stringName = stringMirror.getQualifiedName();
66 Name stringPseudoName = Pseudonym.getName(stringName.toString());
69 if (stringName.equals(stringPseudoName))
70 failed = true;
71 if (!stringName.contentEquals(stringStringName))
72 failed = true;
73 if (!stringName.contentEquals(stringPseudoName))
74 failed = true;
77 try {
78 // Force another round with a new context
79 PrintWriter pw = new PrintWriter(filer.createSourceFile("Foo").openWriter());
80 pw.println("public class Foo {}");
81 pw.close();
82 } catch (IOException ioe) {
83 throw new RuntimeException();
84 }
85 break;
87 case 2:
88 Name stringStringAsName = eltUtils.getName(stringStringName);
89 TypeElement stringMirror2 = eltUtils.getTypeElement(stringStringName);
90 Name stringName2 = stringMirror2.getQualifiedName();
92 if (stringStringAsName != stringName ||
93 stringName != stringName2)
94 failed = true;
95 break;
97 default:
98 throw new RuntimeException("Unexpected round " + round);
99 }
101 if (failed)
102 throw new RuntimeException("Invalid name equality checks.");
103 }
104 return true;
105 }
107 private static class Pseudonym implements Name {
108 private String name;
110 private Pseudonym(String name) {
111 this.name = name;
112 }
114 public static Pseudonym getName(String name) {
115 return new Pseudonym(name);
116 }
118 public boolean contentEquals(CharSequence cs) {
119 return name.contentEquals(cs);
120 }
122 public char charAt(int index) {
123 return name.charAt(index);
124 }
126 public int length() {
127 return name.length();
128 }
130 public CharSequence subSequence(int start, int end) {
131 return name.subSequence(start, end);
132 }
134 public String toString() {
135 return name;
136 }
137 }
138 }