1 /*
2 * Copyright (c) 2012, 2013, 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 8005046 8011052
27 * @summary Test basic properties of javax.lang.element.Element
28 * @author Joseph D. Darcy
29 * @library /tools/javac/lib
30 * @build JavacTestingAbstractProcessor TestExecutableElement
31 * @compile -processor TestExecutableElement -proc:only TestExecutableElement.java
32 */
33
34 import java.lang.annotation.*;
35 import java.util.Formatter;
36 import java.util.Set;
37 import java.util.Objects;
38 import java.util.regex.*;
39 import javax.annotation.processing.*;
40 import javax.lang.model.SourceVersion;
41 import static javax.lang.model.SourceVersion.*;
42 import javax.lang.model.element.*;
43 import javax.lang.model.util.*;
44 import static javax.lang.model.util.ElementFilter.*;
45 import static javax.tools.Diagnostic.Kind.*;
46 import static javax.tools.StandardLocation.*;
47
48 /**
49 * Test some basic workings of javax.lang.element.ExecutableElement
50 */
51 public class TestExecutableElement extends JavacTestingAbstractProcessor implements ProviderOfDefault {
52 @IsDefault(false)
53 public boolean process(Set<? extends TypeElement> annotations,
54 RoundEnvironment roundEnv) {
55 int errors = 0;
56 if (!roundEnv.processingOver()) {
57 boolean hasRun = false;
58 for (Element element : roundEnv.getRootElements()) {
59 for (ExecutableElement method : methodsIn(element.getEnclosedElements())) {
60 hasRun = true;
61 errors += checkIsDefault(method);
62 }
63 }
64
65 if (!hasRun) {
66 messager.printMessage(ERROR, "No test cases run; test fails.");
67 }
68 }
69 return true;
70 }
71
72 @IsDefault(false)
73 int checkIsDefault(ExecutableElement method) {
74 System.out.println("Testing " + method);
75 IsDefault expectedIsDefault = method.getAnnotation(IsDefault.class);
76
77 boolean expectedDefault = (expectedIsDefault != null) ?
78 expectedIsDefault.value() :
79 false;
80
81 boolean methodIsDefault = method.isDefault();
82
83 if (expectedDefault) {
84 if (!method.getModifiers().contains(Modifier.DEFAULT)) {
85 messager.printMessage(ERROR,
86 "Modifier \"default\" not present as expected.",
87 method);
88 }
89
90 // Check printing output
91 java.io.Writer stringWriter = new java.io.StringWriter();
92 eltUtils.printElements(stringWriter, method);
93 Pattern p = Pattern.compile(expectedIsDefault.expectedTextRegex(), Pattern.DOTALL);
94
95 if (! p.matcher(stringWriter.toString()).matches()) {
96 messager.printMessage(ERROR,
97 new Formatter().format("Unexpected printing ouptput:%n\tgot %s,%n\texpected pattern %s.",
98 stringWriter.toString(),
99 expectedIsDefault.expectedTextRegex()).toString(),
100 method);
101 }
102
103 System.out.println("\t" + stringWriter.toString());
104
105 } else {
106 if (method.getModifiers().contains(Modifier.DEFAULT)) {
107 messager.printMessage(ERROR,
108 "Modifier \"default\" present when not expected.",
109 method);
110 }
111 }
112
113 if (methodIsDefault != expectedDefault) {
114 messager.printMessage(ERROR,
115 new Formatter().format("Unexpected Executable.isDefault result: got ``%s'', expected ``%s''.",
116 expectedDefault,
117 methodIsDefault).toString(),
118 method);
119 return 1;
120 }
121 return 0;
122 }
123 }
124
125 /**
126 * Expected value of the ExecutableElement.isDefault method.
127 */
128 @Retention(RetentionPolicy.RUNTIME)
129 @Target(ElementType.METHOD)
130 @interface IsDefault {
131 boolean value();
132 String expectedTextRegex() default "";
133 }
134
135 /**
136 * Test interface to provide a default method.
137 */
138 interface ProviderOfDefault {
139 @IsDefault(false)
140 boolean process(Set<? extends TypeElement> annotations,
141 RoundEnvironment roundEnv);
142
143 @IsDefault(value=true, expectedTextRegex="\\s*@IsDefault\\(.*\\)\\s*default strictfp void quux\\(\\);\\s*$")
144 default strictfp void quux() {};
145 }