Thu, 25 Jul 2013 14:51:40 +0100
8020843: javac crashes on accessibility check with method reference with typevar receiver
Summary: method reference overload check doesn't walk through type-variable receivers
Reviewed-by: jjg
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 6423583
27 * @summary LiteralTree.getValue() should return Boolean for Kind.BOOLEAN_LITERAL literals
28 * @build T6423583
29 * @compile -proc:only -processor T6423583 T6423583.java
30 */
32 import java.util.*;
33 import javax.annotation.processing.*;
34 import javax.lang.model.*;
35 import javax.lang.model.element.*;
36 import com.sun.source.tree.*;
37 import com.sun.source.util.*;
39 @SupportedAnnotationTypes("*")
40 public class T6423583 extends AbstractProcessor {
41 boolean b1 = true;
42 boolean b2 = false;
43 String s = "s";
44 char c = 'c';
45 int i = 0;
46 long l = 0l;
47 float f = 0f;
48 double d = 0d;
49 Void v = null;
51 public boolean process(Set<? extends TypeElement> annos, RoundEnvironment rEnv) {
52 Trees trees = Trees.instance(processingEnv);
53 Test test = new Test();
54 for (Element e: rEnv.getRootElements()) {
55 Tree t = trees.getTree(e);
56 test.scan(t, null);
57 }
58 return true;
59 }
61 @Override
62 public SourceVersion getSupportedSourceVersion() {
63 return SourceVersion.latest();
64 }
66 private static class Test extends TreeScanner<Void,Void> {
68 private static Map<Tree.Kind, Class> map = new HashMap<Tree.Kind, Class>();
69 static {
70 map.put(Tree.Kind.BOOLEAN_LITERAL, Boolean.class);
71 map.put(Tree.Kind.CHAR_LITERAL, Character.class);
72 map.put(Tree.Kind.STRING_LITERAL, String.class);
73 map.put(Tree.Kind.INT_LITERAL, Integer.class);
74 map.put(Tree.Kind.LONG_LITERAL, Long.class);
75 map.put(Tree.Kind.FLOAT_LITERAL, Float.class);
76 map.put(Tree.Kind.DOUBLE_LITERAL, Double.class);
77 }
79 public Void visitLiteral(LiteralTree tree, Void ignore) {
80 System.err.println(tree);
81 Class expect = map.get(tree.getKind());
82 if (!check(tree.getValue(), expect)) {
83 System.err.println("tree: " + tree);
84 System.err.println("expected class: " + expect);
85 if (tree.getValue() != null)
86 System.err.println("actual class: " + tree.getValue().getClass());
87 throw new AssertionError("unexpected value for literal");
88 }
89 return null;
90 }
92 private boolean check(Object value, Class<?> expectedClass) {
93 return (value == null ? expectedClass == null : value.getClass().equals(expectedClass));
94 }
95 }
96 }