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Java > Open Source Codes > org > eclipse > jdt > internal > compiler > ast > ExtendedStringLiteral


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.internal.compiler.ast;
12
13 import org.eclipse.jdt.internal.compiler.ASTVisitor;
14 import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
15
16 public class ExtendedStringLiteral extends StringLiteral {
17
18     /**
19      * Build a string+char literal
20      */
21     public ExtendedStringLiteral(StringLiteral str, CharLiteral character) {
22
23         super(str.source, str.sourceStart, str.sourceEnd, str.lineNumber);
24         extendWith(character);
25     }
26
27     /**
28      * Build a two-strings literal
29      * */
30     public ExtendedStringLiteral(StringLiteral str1, StringLiteral str2) {
31
32         super(str1.source, str1.sourceStart, str1.sourceEnd, str1.lineNumber);
33         extendWith(str2);
34     }
35
36     /**
37      * Add the lit source to mine, just as if it was mine
38      */
39     public ExtendedStringLiteral extendWith(CharLiteral lit) {
40
41         //update the source
42 int length = source.length;
43         System.arraycopy(source, 0, (source = new char[length + 1]), 0, length);
44         source[length] = lit.value;
45         //position at the end of all literals
46 sourceEnd = lit.sourceEnd;
47         return this;
48     }
49
50     /**
51      * Add the lit source to mine, just as if it was mine
52      */
53     public ExtendedStringLiteral extendWith(StringLiteral lit) {
54
55         //uddate the source
56 int length = source.length;
57         System.arraycopy(
58             source,
59             0,
60             source = new char[length + lit.source.length],
61             0,
62             length);
63         System.arraycopy(lit.source, 0, source, length, lit.source.length);
64         //position at the end of all literals
65 sourceEnd = lit.sourceEnd;
66         return this;
67     }
68
69     public StringBuffer JavaDoc printExpression(int indent, StringBuffer JavaDoc output) {
70
71         return output.append("ExtendedStringLiteral{").append(source).append('}'); //$NON-NLS-1$
72 }
73
74     public void traverse(ASTVisitor visitor, BlockScope scope) {
75
76         visitor.visit(this, scope);
77         visitor.endVisit(this, scope);
78     }
79 }
80
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