01: /*
02: * Copyright 1999-2006 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * 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: @Version("@(#)AttrContext.java 1.32 07/05/05")
40: public class AttrContext {
41:
42: /** The scope of local symbols.
43: */
44: Scope scope = null;
45:
46: /** The number of enclosing `static' modifiers.
47: */
48: int staticLevel = 0;
49:
50: /** Is this an environment for a this(...) or super(...) call?
51: */
52: boolean isSelfCall = false;
53:
54: /** Are we evaluating the selector of a `super' or type name?
55: */
56: boolean selectSuper = false;
57:
58: /** Are arguments to current function applications boxed into an array for varargs?
59: */
60: boolean varArgs = false;
61:
62: /** A list of type variables that are all-quantifed in current context.
63: */
64: List<Type> tvars = List.nil();
65:
66: /** A record of the lint/SuppressWarnings currently in effect
67: */
68: Lint lint;
69:
70: /** Duplicate this context, replacing scope field and copying all others.
71: */
72: AttrContext dup(Scope scope) {
73: AttrContext info = new AttrContext();
74: info.scope = scope;
75: info.staticLevel = staticLevel;
76: info.isSelfCall = isSelfCall;
77: info.selectSuper = selectSuper;
78: info.varArgs = varArgs;
79: info.tvars = tvars;
80: info.lint = lint;
81: return info;
82: }
83:
84: /** Duplicate this context, copying all fields.
85: */
86: AttrContext dup() {
87: return dup(scope);
88: }
89:
90: public Iterable<Symbol> getLocalElements() {
91: if (scope == null)
92: return List.nil();
93: return scope.getElements();
94: }
95:
96: public String toString() {
97: return "AttrContext[" + scope.toString() + "]";
98: }
99: }
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