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/*
* Copyright 2016 Miroslav Janíček
*
* 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 net.sandius.rembulan.parser.ast;
import net.sandius.rembulan.util.Check;
public class WhileStatement extends BodyStatement {
private final Expr condition;
private final Block block;
public WhileStatement(Attributes attr, Expr condition, Block block) {
super(attr);
this.condition = Check.notNull(condition);
this.block = Check.notNull(block);
}
public Expr condition() {
return condition;
}
public Block block() {
return block;
}
public WhileStatement update(Expr condition, Block block) {
if (this.condition.equals(condition) && this.block.equals(block)) {
return this;
}
else {
return new WhileStatement(attributes(), condition, block);
}
}
@Override
public BodyStatement accept(Transformer tf) {
return tf.transform(this);
}
}