Thu, 03 Feb 2011 09:36:28 +0000
5017953: spurious cascaded diagnostics when name not found
Summary: when an operator is applied to one or more erroneous operands, spurious diagnostics are generated
Reviewed-by: jjg
1 /*
2 * Copyright (c) 2006, 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 6402516
27 * @summary need Trees.getScope(TreePath)
28 * @build Checker CheckIsAccessible
29 * @run main CheckIsAccessible
30 */
32 import java.util.*;
33 import com.sun.source.tree.*;
34 import com.sun.source.util.*;
35 import javax.lang.model.element.*;
36 import javax.lang.model.type.*;
37 import javax.lang.model.util.*;
39 /*
40 * Check the accessibility of items of a scope against the contents of string literals.
41 */
42 public class CheckIsAccessible extends Checker {
43 public static void main(String... args) throws Exception {
44 Checker chk = new CheckIsAccessible();
45 chk.check("TestIsAccessible.java", "A.java");
46 }
48 @Override
49 protected boolean check(Scope s, String ref) {
50 System.err.println("checkIsAccessible: " + s + " " + s.getEnclosingClass() + " " + ref);
51 if (ref.length() == 0)
52 return true;
54 Trees trees = getTrees();
55 String[] args = ref.split(" +", 3);
56 boolean expect = args[args.length - 1].equals("yes");
57 boolean actual;
58 switch (args.length) {
59 case 2:
60 TypeElement te = getTypeElement(args[0]);
61 actual = trees.isAccessible(s, te);
62 if (actual != expect)
63 error(s, ref, "accessible issue found: " + te + " " + actual);
64 break;
66 case 3:
67 DeclaredType site = getType(args[0]);
68 Element member = getMember(args[1]);
69 actual = trees.isAccessible(s, member, site);
70 if (actual != expect)
71 error(s, ref, "accessible issue found: " + member + "@" + site + " " + actual);
72 break;
74 default:
75 throw new IllegalArgumentException(ref);
76 }
78 return (actual == expect);
79 }
81 private TypeElement getTypeElement(String name) {
82 TypeElement te = getElements().getTypeElement(name);
83 if (te == null)
84 throw new IllegalArgumentException("can't find element " + name);
85 return te;
86 }
88 private DeclaredType getType(String name) {
89 return (DeclaredType)(getTypeElement(name).asType());
90 }
92 private Element getMember(String name) {
93 int sep = name.indexOf("#");
94 String tname = name.substring(0, sep);
95 String mname = name.substring(sep+1);
96 TypeElement te = getTypeElement(tname);
97 for (Element e: te.getEnclosedElements()) {
98 if (mname.contentEquals(e.getSimpleName()))
99 return e;
100 }
101 throw new IllegalArgumentException("can't find member " + mname + " in " + tname);
102 }
104 }