1 | /* |
2 | * Copyright 1999-2006 Sun Microsystems, Inc. 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. Sun designates this |
8 | * particular file as subject to the "Classpath" exception as provided |
9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
23 | * have any questions. |
24 | */ |
25 | |
26 | package com.sun.tools.javac.comp; |
27 | |
28 | import com.sun.tools.javac.util.*; |
29 | import com.sun.tools.javac.code.*; |
30 | |
31 | /** Contains information specific to the attribute and enter |
32 | * passes, to be used in place of the generic field in environments. |
33 | * |
34 | * <p><b>This is NOT part of any API supported by Sun Microsystems. If |
35 | * you write code that depends on this, you do so at your own risk. |
36 | * This code and its internal interfaces are subject to change or |
37 | * deletion without notice.</b> |
38 | */ |
39 | public class AttrContext { |
40 | |
41 | /** The scope of local symbols. |
42 | */ |
43 | Scope scope = null; |
44 | |
45 | /** The number of enclosing `static' modifiers. |
46 | */ |
47 | int staticLevel = 0; |
48 | |
49 | /** Is this an environment for a this(...) or super(...) call? |
50 | */ |
51 | boolean isSelfCall = false; |
52 | |
53 | /** Are we evaluating the selector of a `super' or type name? |
54 | */ |
55 | boolean selectSuper = false; |
56 | |
57 | /** Are arguments to current function applications boxed into an array for varargs? |
58 | */ |
59 | boolean varArgs = false; |
60 | |
61 | /** A list of type variables that are all-quantifed in current context. |
62 | */ |
63 | List<Type> tvars = List.nil(); |
64 | |
65 | /** A record of the lint/SuppressWarnings currently in effect |
66 | */ |
67 | Lint lint; |
68 | |
69 | /** Duplicate this context, replacing scope field and copying all others. |
70 | */ |
71 | AttrContext dup(Scope scope) { |
72 | AttrContext info = new AttrContext(); |
73 | info.scope = scope; |
74 | info.staticLevel = staticLevel; |
75 | info.isSelfCall = isSelfCall; |
76 | info.selectSuper = selectSuper; |
77 | info.varArgs = varArgs; |
78 | info.tvars = tvars; |
79 | info.lint = lint; |
80 | return info; |
81 | } |
82 | |
83 | /** Duplicate this context, copying all fields. |
84 | */ |
85 | AttrContext dup() { |
86 | return dup(scope); |
87 | } |
88 | |
89 | public Iterable<Symbol> getLocalElements() { |
90 | if (scope == null) |
91 | return List.nil(); |
92 | return scope.getElements(); |
93 | } |
94 | |
95 | public String toString() { |
96 | return "AttrContext[" + scope.toString() + "]"; |
97 | } |
98 | } |