Mercurial > jdk8-mips64-public > langtools / file comparison

comparison: src/share/classes/com/sun/source/util/SimpleTreeVisitor.java

src/share/classes/com/sun/source/util/SimpleTreeVisitor.java

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1 /*
2 * Copyright (c) 2005, 2013, 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 */
25
26 package com.sun.source.util;
27
28 import com.sun.source.tree.*;
29
30 /**
31 * A simple visitor for tree nodes.
32 *
33 * @author Peter von der Ahé
34 * @since 1.6
35 */
36 @jdk.Exported
37 public class SimpleTreeVisitor <R,P> implements TreeVisitor<R,P> {
38 protected final R DEFAULT_VALUE;
39
40 protected SimpleTreeVisitor() {
41 DEFAULT_VALUE = null;
42 }
43
44 protected SimpleTreeVisitor(R defaultValue) {
45 DEFAULT_VALUE = defaultValue;
46 }
47
48 protected R defaultAction(Tree node, P p) {
49 return DEFAULT_VALUE;
50 }
51
52 public final R visit(Tree node, P p) {
53 return (node == null) ? null : node.accept(this, p);
54 }
55
56 public final R visit(Iterable<? extends Tree> nodes, P p) {
57 R r = null;
58 if (nodes != null)
59 for (Tree node : nodes)
60 r = visit(node, p);
61 return r;
62 }
63
64 public R visitCompilationUnit(CompilationUnitTree node, P p) {
65 return defaultAction(node, p);
66 }
67
68 public R visitImport(ImportTree node, P p) {
69 return defaultAction(node, p);
70 }
71
72 public R visitClass(ClassTree node, P p) {
73 return defaultAction(node, p);
74 }
75
76 public R visitMethod(MethodTree node, P p) {
77 return defaultAction(node, p);
78 }
79
80 public R visitVariable(VariableTree node, P p) {
81 return defaultAction(node, p);
82 }
83
84 public R visitEmptyStatement(EmptyStatementTree node, P p) {
85 return defaultAction(node, p);
86 }
87
88 public R visitBlock(BlockTree node, P p) {
89 return defaultAction(node, p);
90 }
91
92 public R visitDoWhileLoop(DoWhileLoopTree node, P p) {
93 return defaultAction(node, p);
94 }
95
96 public R visitWhileLoop(WhileLoopTree node, P p) {
97 return defaultAction(node, p);
98 }
99
100 public R visitForLoop(ForLoopTree node, P p) {
101 return defaultAction(node, p);
102 }
103
104 public R visitEnhancedForLoop(EnhancedForLoopTree node, P p) {
105 return defaultAction(node, p);
106 }
107
108 public R visitLabeledStatement(LabeledStatementTree node, P p) {
109 return defaultAction(node, p);
110 }
111
112 public R visitSwitch(SwitchTree node, P p) {
113 return defaultAction(node, p);
114 }
115
116 public R visitCase(CaseTree node, P p) {
117 return defaultAction(node, p);
118 }
119
120 public R visitSynchronized(SynchronizedTree node, P p) {
121 return defaultAction(node, p);
122 }
123
124 public R visitTry(TryTree node, P p) {
125 return defaultAction(node, p);
126 }
127
128 public R visitCatch(CatchTree node, P p) {
129 return defaultAction(node, p);
130 }
131
132 public R visitConditionalExpression(ConditionalExpressionTree node, P p) {
133 return defaultAction(node, p);
134 }
135
136 public R visitIf(IfTree node, P p) {
137 return defaultAction(node, p);
138 }
139
140 public R visitExpressionStatement(ExpressionStatementTree node, P p) {
141 return defaultAction(node, p);
142 }
143
144 public R visitBreak(BreakTree node, P p) {
145 return defaultAction(node, p);
146 }
147
148 public R visitContinue(ContinueTree node, P p) {
149 return defaultAction(node, p);
150 }
151
152 public R visitReturn(ReturnTree node, P p) {
153 return defaultAction(node, p);
154 }
155
156 public R visitThrow(ThrowTree node, P p) {
157 return defaultAction(node, p);
158 }
159
160 public R visitAssert(AssertTree node, P p) {
161 return defaultAction(node, p);
162 }
163
164 public R visitMethodInvocation(MethodInvocationTree node, P p) {
165 return defaultAction(node, p);
166 }
167
168 public R visitNewClass(NewClassTree node, P p) {
169 return defaultAction(node, p);
170 }
171
172 public R visitNewArray(NewArrayTree node, P p) {
173 return defaultAction(node, p);
174 }
175
176 public R visitLambdaExpression(LambdaExpressionTree node, P p) {
177 return defaultAction(node, p);
178 }
179
180 public R visitParenthesized(ParenthesizedTree node, P p) {
181 return defaultAction(node, p);
182 }
183
184 public R visitAssignment(AssignmentTree node, P p) {
185 return defaultAction(node, p);
186 }
187
188 public R visitCompoundAssignment(CompoundAssignmentTree node, P p) {
189 return defaultAction(node, p);
190 }
191
192 public R visitUnary(UnaryTree node, P p) {
193 return defaultAction(node, p);
194 }
195
196 public R visitBinary(BinaryTree node, P p) {
197 return defaultAction(node, p);
198 }
199
200 public R visitTypeCast(TypeCastTree node, P p) {
201 return defaultAction(node, p);
202 }
203
204 public R visitInstanceOf(InstanceOfTree node, P p) {
205 return defaultAction(node, p);
206 }
207
208 public R visitArrayAccess(ArrayAccessTree node, P p) {
209 return defaultAction(node, p);
210 }
211
212 public R visitMemberSelect(MemberSelectTree node, P p) {
213 return defaultAction(node, p);
214 }
215
216 public R visitMemberReference(MemberReferenceTree node, P p) {
217 return defaultAction(node, p);
218 }
219
220 public R visitIdentifier(IdentifierTree node, P p) {
221 return defaultAction(node, p);
222 }
223
224 public R visitLiteral(LiteralTree node, P p) {
225 return defaultAction(node, p);
226 }
227
228 public R visitPrimitiveType(PrimitiveTypeTree node, P p) {
229 return defaultAction(node, p);
230 }
231
232 public R visitArrayType(ArrayTypeTree node, P p) {
233 return defaultAction(node, p);
234 }
235
236 public R visitParameterizedType(ParameterizedTypeTree node, P p) {
237 return defaultAction(node, p);
238 }
239
240 public R visitUnionType(UnionTypeTree node, P p) {
241 return defaultAction(node, p);
242 }
243
244 public R visitIntersectionType(IntersectionTypeTree node, P p) {
245 return defaultAction(node, p);
246 }
247
248 public R visitTypeParameter(TypeParameterTree node, P p) {
249 return defaultAction(node, p);
250 }
251
252 public R visitWildcard(WildcardTree node, P p) {
253 return defaultAction(node, p);
254 }
255
256 public R visitModifiers(ModifiersTree node, P p) {
257 return defaultAction(node, p);
258 }
259
260 public R visitAnnotation(AnnotationTree node, P p) {
261 return defaultAction(node, p);
262 }
263
264 public R visitAnnotatedType(AnnotatedTypeTree node, P p) {
265 return defaultAction(node, p);
266 }
267
268 public R visitErroneous(ErroneousTree node, P p) {
269 return defaultAction(node, p);
270 }
271
272 public R visitOther(Tree node, P p) {
273 return defaultAction(node, p);
274 }
275 }

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