org.eclipse.jdt.internal.compiler.ast.StringLiteralConcatenation Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.compiler.ast;
import org.eclipse.jdt.internal.compiler.ASTVisitor;
import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
/**
* Flatten string literal
*/
public class StringLiteralConcatenation extends StringLiteral {
private static final int INITIAL_SIZE = 5;
public Expression[] literals;
public int counter;
/**
* Build a two-strings literal
* */
public StringLiteralConcatenation(StringLiteral str1, StringLiteral str2) {
super(str1.sourceStart, str1.sourceEnd);
this.source = str1.source;
this.literals = new StringLiteral[INITIAL_SIZE];
this.counter = 0;
this.literals[this.counter++] = str1;
extendsWith(str2);
}
/**
* Add the lit source to mine, just as if it was mine
*/
public StringLiteralConcatenation extendsWith(StringLiteral lit) {
this.sourceEnd = lit.sourceEnd;
final int literalsLength = this.literals.length;
if (this.counter == literalsLength) {
// resize
System.arraycopy(this.literals, 0, this.literals = new StringLiteral[literalsLength + INITIAL_SIZE], 0, literalsLength);
}
//uddate the source
int length = this.source.length;
System.arraycopy(
this.source,
0,
this.source = new char[length + lit.source.length],
0,
length);
System.arraycopy(lit.source, 0, this.source, length, lit.source.length);
this.literals[this.counter++] = lit;
return this;
}
public StringBuffer printExpression(int indent, StringBuffer output) {
output.append("StringLiteralConcatenation{"); //$NON-NLS-1$
for (int i = 0, max = this.counter; i < max; i++) {
this.literals[i].printExpression(indent, output);
output.append("+\n");//$NON-NLS-1$
}
return output.append('}');
}
public char[] source() {
return this.source;
}
public void traverse(ASTVisitor visitor, BlockScope scope) {
if (visitor.visit(this, scope)) {
for (int i = 0, max = this.counter; i < max; i++) {
this.literals[i].traverse(visitor, scope);
}
}
visitor.endVisit(this, scope);
}
}