/*
* Copyright 2007 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.dev.generator.ast;
import java.util.List;
/**
* A kind of {@link Statements} that represents a <code>for</code> loop.
*/
public class ForLoop implements Statements {
private final StatementsList body;
private final String initializer;
private String label;
private final String step;
private final String test;
/**
* Creates a {@link ForLoop#ForLoop(String,String,String,Statements)} with a
* null body.
*/
public ForLoop(String initializer, String test, String step) {
this(initializer, test, step, null);
}
/**
* Constructs a new <code>ForLoop</code> {@link Node}.
*
* @param initializer The textual initializer {@link Expression}.
* @param test The textual test {@link Expression}.
* @param step The textual step {@link Expression}. May be <code>null</code>.
* @param statements The {@link Statements} for the body of the loop. May be
* <code>null</code>.
*/
public ForLoop(String initializer, String test, String step,
Statements statements) {
this.initializer = initializer;
this.test = test;
this.step = step;
this.body = new StatementsList();
if (statements != null) {
body.getStatements().add(statements);
}
}
public List<Statements> getStatements() {
return body.getStatements();
}
public void setLabel(String label) {
this.label = label;
}
public String toCode() {
String loop = "for ( " + initializer + "; " + test + "; " + step + " ) {\n"
+ body.toCode() + "\n" + "}\n";
return label != null ? label + ": " + loop : loop;
}
}