Mon, 28 Feb 2011 11:48:53 +0000
7015430: Incorrect thrown type determined for unchecked invocations
Summary: Thrown types do not get updated after 15.12.2.8, and do not get erased as per 15.12.2.6
Reviewed-by: jjg, dlsmith
1 /*
2 * Copyright (c) 2002, 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. 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.javac.parser;
28 import com.sun.tools.javac.util.Context;
29 import com.sun.tools.javac.util.Log;
30 import com.sun.tools.javac.util.Name;
31 import com.sun.tools.javac.util.Names;
33 import static com.sun.tools.javac.parser.Token.*;
35 /**
36 * Map from Name to Token and Token to String.
37 *
38 * <p><b>This is NOT part of any supported API.
39 * If you write code that depends on this, you do so at your own risk.
40 * This code and its internal interfaces are subject to change or
41 * deletion without notice.</b>
42 */
43 public class Keywords {
44 public static final Context.Key<Keywords> keywordsKey =
45 new Context.Key<Keywords>();
47 public static Keywords instance(Context context) {
48 Keywords instance = context.get(keywordsKey);
49 if (instance == null)
50 instance = new Keywords(context);
51 return instance;
52 }
54 private final Names names;
56 protected Keywords(Context context) {
57 context.put(keywordsKey, this);
58 names = Names.instance(context);
60 for (Token t : Token.values()) {
61 if (t.name != null)
62 enterKeyword(t.name, t);
63 else
64 tokenName[t.ordinal()] = null;
65 }
67 key = new Token[maxKey+1];
68 for (int i = 0; i <= maxKey; i++) key[i] = IDENTIFIER;
69 for (Token t : Token.values()) {
70 if (t.name != null)
71 key[tokenName[t.ordinal()].getIndex()] = t;
72 }
73 }
76 public Token key(Name name) {
77 return (name.getIndex() > maxKey) ? IDENTIFIER : key[name.getIndex()];
78 }
80 /**
81 * Keyword array. Maps name indices to Token.
82 */
83 private final Token[] key;
85 /** The number of the last entered keyword.
86 */
87 private int maxKey = 0;
89 /** The names of all tokens.
90 */
91 private Name[] tokenName = new Name[Token.values().length];
93 private void enterKeyword(String s, Token token) {
94 Name n = names.fromString(s);
95 tokenName[token.ordinal()] = n;
96 if (n.getIndex() > maxKey) maxKey = n.getIndex();
97 }
98 }