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Java > Open Source Codes > org > eclipse > jdt > core > dom > NodeSearcher


1 /*******************************************************************************
2  * Copyright (c) 2000, 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.jdt.core.dom;
12
13 import org.eclipse.jdt.internal.compiler.ASTVisitor;
14 import org.eclipse.jdt.internal.compiler.ast.ConstructorDeclaration;
15 import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
16 import org.eclipse.jdt.internal.compiler.ast.Initializer;
17 import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
18 import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
19 import org.eclipse.jdt.internal.compiler.lookup.ClassScope;
20 import org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope;
21 import org.eclipse.jdt.internal.compiler.lookup.MethodScope;
22
23 class NodeSearcher extends ASTVisitor {
24     public org.eclipse.jdt.internal.compiler.ast.ASTNode found;
25     public TypeDeclaration enclosingType;
26     public int position;
27     
28     NodeSearcher(int position) {
29         this.position = position;
30     }
31
32     public boolean visit(
33         ConstructorDeclaration constructorDeclaration,
34         ClassScope scope) {
35
36         if (constructorDeclaration.declarationSourceStart <= position
37             && position <= constructorDeclaration.declarationSourceEnd) {
38                 found = constructorDeclaration;
39                 return false;
40         }
41         return true;
42     }
43
44     public boolean visit(
45         FieldDeclaration fieldDeclaration,
46         MethodScope scope) {
47             if (fieldDeclaration.declarationSourceStart <= position
48                 && position <= fieldDeclaration.declarationSourceEnd) {
49                     found = fieldDeclaration;
50                     return false;
51             }
52             return true;
53     }
54
55     public boolean visit(Initializer initializer, MethodScope scope) {
56         if (initializer.declarationSourceStart <= position
57             && position <= initializer.declarationSourceEnd) {
58                 found = initializer;
59                 return false;
60         }
61         return true;
62     }
63
64     public boolean visit(
65         TypeDeclaration memberTypeDeclaration,
66         ClassScope scope) {
67             if (memberTypeDeclaration.declarationSourceStart <= position
68                 && position <= memberTypeDeclaration.declarationSourceEnd) {
69                     enclosingType = memberTypeDeclaration;
70                     return true;
71
72             }
73             return false;
74     }
75
76     public boolean visit(
77         MethodDeclaration methodDeclaration,
78         ClassScope scope) {
79
80         if (methodDeclaration.declarationSourceStart <= position
81             && position <= methodDeclaration.declarationSourceEnd) {
82                 found = methodDeclaration;
83                 return false;
84         }
85         return true;
86     }
87
88     public boolean visit(
89         TypeDeclaration typeDeclaration,
90         CompilationUnitScope scope) {
91             if (typeDeclaration.declarationSourceStart <= position
92                 && position <= typeDeclaration.declarationSourceEnd) {
93                     enclosingType = typeDeclaration;
94                     return true;
95             }
96             return false;
97     }
98
99 }
100
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