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
duke@1 | 1 | /* |
ksrini@1053 | 2 | * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@1 | 4 | * |
duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
ohair@554 | 7 | * published by the Free Software Foundation. Oracle designates this |
duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
ohair@554 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
duke@1 | 10 | * |
duke@1 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@1 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@1 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@1 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@1 | 15 | * accompanied this code). |
duke@1 | 16 | * |
duke@1 | 17 | * You should have received a copy of the GNU General Public License version |
duke@1 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@1 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@1 | 20 | * |
ohair@554 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 22 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 23 | * questions. |
duke@1 | 24 | */ |
duke@1 | 25 | |
duke@1 | 26 | package com.sun.tools.javadoc; |
duke@1 | 27 | |
duke@1 | 28 | import java.util.regex.*; |
duke@1 | 29 | |
duke@1 | 30 | import com.sun.javadoc.*; |
duke@1 | 31 | |
duke@1 | 32 | /** |
duke@1 | 33 | * Represents an @param documentation tag. |
duke@1 | 34 | * Parses and stores the name and comment parts of the parameter tag. |
duke@1 | 35 | * |
duke@1 | 36 | * @author Robert Field |
duke@1 | 37 | * |
duke@1 | 38 | */ |
duke@1 | 39 | class ParamTagImpl extends TagImpl implements ParamTag { |
duke@1 | 40 | |
duke@1 | 41 | private static Pattern typeParamRE = Pattern.compile("<([^<>]+)>"); |
duke@1 | 42 | |
duke@1 | 43 | private final String parameterName; |
duke@1 | 44 | private final String parameterComment; |
duke@1 | 45 | private final boolean isTypeParameter; |
duke@1 | 46 | |
ksrini@1053 | 47 | /** |
ksrini@1053 | 48 | * Cached inline tags. |
ksrini@1053 | 49 | */ |
ksrini@1053 | 50 | private Tag[] inlineTags; |
ksrini@1053 | 51 | |
duke@1 | 52 | ParamTagImpl(DocImpl holder, String name, String text) { |
duke@1 | 53 | super(holder, name, text); |
duke@1 | 54 | String[] sa = divideAtWhite(); |
duke@1 | 55 | |
duke@1 | 56 | Matcher m = typeParamRE.matcher(sa[0]); |
duke@1 | 57 | isTypeParameter = m.matches(); |
duke@1 | 58 | parameterName = isTypeParameter ? m.group(1) : sa[0]; |
duke@1 | 59 | parameterComment = sa[1]; |
duke@1 | 60 | } |
duke@1 | 61 | |
duke@1 | 62 | /** |
duke@1 | 63 | * Return the parameter name. |
duke@1 | 64 | */ |
duke@1 | 65 | public String parameterName() { |
duke@1 | 66 | return parameterName; |
duke@1 | 67 | } |
duke@1 | 68 | |
duke@1 | 69 | /** |
duke@1 | 70 | * Return the parameter comment. |
duke@1 | 71 | */ |
duke@1 | 72 | public String parameterComment() { |
duke@1 | 73 | return parameterComment; |
duke@1 | 74 | } |
duke@1 | 75 | |
duke@1 | 76 | /** |
duke@1 | 77 | * Return the kind of this tag. |
duke@1 | 78 | */ |
ksrini@1053 | 79 | @Override |
duke@1 | 80 | public String kind() { |
duke@1 | 81 | return "@param"; |
duke@1 | 82 | } |
duke@1 | 83 | |
duke@1 | 84 | /** |
duke@1 | 85 | * Return true if this ParamTag corresponds to a type parameter. |
duke@1 | 86 | */ |
duke@1 | 87 | public boolean isTypeParameter() { |
duke@1 | 88 | return isTypeParameter; |
duke@1 | 89 | } |
duke@1 | 90 | |
duke@1 | 91 | /** |
duke@1 | 92 | * convert this object to a string. |
duke@1 | 93 | */ |
ksrini@1053 | 94 | @Override |
duke@1 | 95 | public String toString() { |
duke@1 | 96 | return name + ":" + text; |
duke@1 | 97 | } |
duke@1 | 98 | |
duke@1 | 99 | /** |
duke@1 | 100 | * For the parameter comment with embedded @link tags return the array of |
duke@1 | 101 | * TagImpls consisting of SeeTagImpl(s) and text containing TagImpl(s). |
duke@1 | 102 | * |
duke@1 | 103 | * @return TagImpl[] Array of tags with inline SeeTagImpls. |
duke@1 | 104 | * @see TagImpl#inlineTagImpls() |
duke@1 | 105 | * @see ThrowsTagImpl#inlineTagImpls() |
duke@1 | 106 | */ |
ksrini@1053 | 107 | @Override |
duke@1 | 108 | public Tag[] inlineTags() { |
ksrini@1053 | 109 | if (inlineTags == null) { |
ksrini@1053 | 110 | inlineTags = Comment.getInlineTags(holder, parameterComment); |
ksrini@1053 | 111 | } |
ksrini@1053 | 112 | return inlineTags; |
duke@1 | 113 | } |
duke@1 | 114 | } |