1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 6981185
* @summary com.sun.tools.model.JavacTypes.contains() calls Type.contains instead of Types.containsType
* @modules jdk.compiler
* @run main TestContainTypes
*/
import java.net.URI;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import javax.annotation.processing.AbstractProcessor;
import javax.annotation.processing.RoundEnvironment;
import javax.annotation.processing.SupportedSourceVersion;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.type.TypeMirror;
import javax.lang.model.type.DeclaredType;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
import com.sun.source.util.JavacTask;
public class TestContainTypes {
enum ClassType {
OBJECT("Object"),
NUMBER("Number"),
INTEGER("Integer"),
STRING("String");
String classStub;
ClassType(String classStub) {
this.classStub = classStub;
}
boolean subtypeOf(ClassType that) {
switch (that) {
case OBJECT: return true;
case NUMBER: return this == NUMBER || this == INTEGER;
case INTEGER: return this == INTEGER;
case STRING: return this == STRING;
default: throw new AssertionError("Bad type kind in subtyping test");
}
}
}
enum ParameterType {
INVARIANT("List<#1>"),
COVARIANT("List<? extends #1>"),
CONTRAVARIANT("List<? super #1>"),
BIVARIANT("List<?>");
String paramTypeStub;
ParameterType(String paramTypeStub) {
this.paramTypeStub = paramTypeStub;
}
String instantiate(ClassType ct) {
return paramTypeStub.replace("#1", ct.classStub);
}
static boolean contains(ParameterType pt1, ClassType ct1,
ParameterType pt2, ClassType ct2) {
switch (pt1) {
case INVARIANT: return (pt2 == INVARIANT && ct1 == ct2) ||
(pt2 == CONTRAVARIANT && ct1 == ct2 && ct1 == ClassType.OBJECT);
case COVARIANT: return ((pt2 == INVARIANT || pt2 == COVARIANT) &&
ct2.subtypeOf(ct1)) ||
(ct1 == ClassType.OBJECT);
case CONTRAVARIANT: return (pt2 == INVARIANT || pt2 == CONTRAVARIANT) &&
ct1.subtypeOf(ct2);
case BIVARIANT: return true;
default: throw new AssertionError("Bad type kind in containment test");
}
}
}
static class JavaSource extends SimpleJavaFileObject {
final static String sourceStub =
"import java.util.List;\n" +
"@interface ToCheck {}\n" +
"class Test {\n" +
" @ToCheck void test(#A a, #B b) {}\n" +
"}\n";
String source;
public JavaSource(String typeA, String typeB) {
super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
source = sourceStub.replace("#A", typeA).replace("#B", typeB);
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
static final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
static final JavaFileManager fm = tool.getStandardFileManager(null, null, null);
public static void main(String... args) throws Exception {
try {
for (ClassType ctA : ClassType.values()) {
for (ParameterType ptA : ParameterType.values()) {
for (ClassType ctB : ClassType.values()) {
for (ParameterType ptB : ParameterType.values()) {
compileAndCheck(ptA, ctA, ptB, ctB);
}
}
}
}
} finally {
fm.close();
}
}
static void compileAndCheck(ParameterType ptA, ClassType ctA, ParameterType ptB, ClassType ctB) throws Exception {
JavaSource source = new JavaSource(ptA.instantiate(ctA), ptB.instantiate(ctB));
JavacTask ct = (JavacTask)tool.getTask(null, fm, null,
null, null, Arrays.asList(source));
ct.setProcessors(Arrays.asList(new ContainTypesTester(ParameterType.contains(ptA, ctA, ptB, ctB), source)));
System.err.println("A = " + ptA +" / " + ptA.instantiate(ctA));
System.err.println("B = " + ptB +" / " + ptB.instantiate(ctB));
System.err.println("Source = " + source.source);
ct.analyze();
}
@SupportedSourceVersion(SourceVersion.RELEASE_7)
static class ContainTypesTester extends AbstractProcessor {
boolean expected;
JavaSource source;
ContainTypesTester(boolean expected, JavaSource source) {
this.expected = expected;
this.source = source;
}
@Override
public Set<String> getSupportedAnnotationTypes() {
Set<String> supportedAnnos = new HashSet();
supportedAnnos.add("*");
return supportedAnnos;
}
private void error(String msg) {
System.err.println(source.source);
throw new AssertionError(msg);
}
@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
if (roundEnv.getRootElements().size() == 0) {
return true;
}
if (annotations.isEmpty() || annotations.size() > 1) {
error("no anno found/wrong number of annotations found: " + annotations.size());
}
TypeElement anno = (TypeElement)annotations.toArray()[0];
Set<? extends Element> annoElems = roundEnv.getElementsAnnotatedWith(anno);
if (annoElems.isEmpty() || annoElems.size() > 1) {
error("no annotated element found/wrong number of annotated elements found: " + annoElems.size());
}
Element annoElement = (Element)annoElems.toArray()[0];
if (!(annoElement instanceof ExecutableElement)) {
error("annotated element must be a method");
}
ExecutableElement method = (ExecutableElement)annoElement;
if (method.getParameters().size() != 2) {
error("annotated method must have 2 arguments");
}
DeclaredType d1 = (DeclaredType)method.getParameters().get(0).asType();
DeclaredType d2 = (DeclaredType)method.getParameters().get(1).asType();
if (d1.getTypeArguments().size() != 1 ||
d1.getTypeArguments().size() != 1) {
error("parameter type must be generic in one type-variable");
}
TypeMirror t1 = d1.getTypeArguments().get(0);
TypeMirror t2 = d2.getTypeArguments().get(0);
if (processingEnv.getTypeUtils().contains(t1, t2) != expected) {
error("bad type containment result\n" +
"t1 : " + t1 +"\n" +
"t2 : " + t2 +"\n" +
"expected answer : " + expected +"\n");
}
return true;
}
}
}
|
