Thu, 12 Jan 2012 15:28:34 +0000
7123100: javac fails with java.lang.StackOverflowError
Summary: Inference of under-constrained type-variables creates erroneous recursive wildcard types
Reviewed-by: jjg
1 /*
2 * Copyright (c) 1997, 2011, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.javadoc;
28 import com.sun.javadoc.*;
30 /**
31 * Represents a @throws or @exception documentation tag.
32 * Parses and holds the exception name and exception comment.
33 * The exception name my be the name of a type variable.
34 * Note: @exception is a backwards compatible synonymy for @throws.
35 *
36 * @author Robert Field
37 * @author Atul M Dambalkar
38 * @see ExecutableMemberDocImpl#throwsTags()
39 *
40 */
41 class ThrowsTagImpl extends TagImpl implements ThrowsTag {
43 private final String exceptionName;
44 private final String exceptionComment;
46 /**
47 * Cached inline tags.
48 */
49 private Tag[] inlineTags;
51 ThrowsTagImpl(DocImpl holder, String name, String text) {
52 super(holder, name, text);
53 String[] sa = divideAtWhite();
54 exceptionName = sa[0];
55 exceptionComment = sa[1];
56 }
58 /**
59 * Return the exception name.
60 */
61 public String exceptionName() {
62 return exceptionName;
63 }
65 /**
66 * Return the exception comment.
67 */
68 public String exceptionComment() {
69 return exceptionComment;
70 }
72 /**
73 * Return the exception as a ClassDocImpl.
74 */
75 public ClassDoc exception() {
76 ClassDocImpl exceptionClass;
77 if (!(holder instanceof ExecutableMemberDoc)) {
78 exceptionClass = null;
79 } else {
80 ExecutableMemberDocImpl emd = (ExecutableMemberDocImpl)holder;
81 ClassDocImpl con = (ClassDocImpl)emd.containingClass();
82 exceptionClass = (ClassDocImpl)con.findClass(exceptionName);
83 }
84 return exceptionClass;
85 }
87 /**
88 * Return the type that represents the exception.
89 * This may be a <code>ClassDoc</code> or a <code>TypeVariable</code>.
90 */
91 public Type exceptionType() {
92 //###(gj) TypeVariable not yet supported.
93 return exception();
94 }
97 /**
98 * Return the kind of this tag. Always "@throws" for instances
99 * of ThrowsTagImpl.
100 */
101 @Override
102 public String kind() {
103 return "@throws";
104 }
106 /**
107 * For the exception comment with embedded @link tags return the array of
108 * TagImpls consisting of SeeTagImpl(s) and text containing TagImpl(s).
109 *
110 * @return TagImpl[] Array of tags with inline SeeTagImpls.
111 * @see TagImpl#inlineTagImpls()
112 * @see ParamTagImpl#inlineTagImpls()
113 */
114 @Override
115 public Tag[] inlineTags() {
116 if (inlineTags == null) {
117 inlineTags = Comment.getInlineTags(holder, exceptionComment());
118 }
119 return inlineTags;
120 }
121 }