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/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.painless.node;

import org.elasticsearch.painless.Location;
import org.elasticsearch.painless.phase.UserTreeVisitor;

import java.util.Objects;

/**
 * Represents a do-while loop.
 */
public class SDo extends AStatement {

    private final AExpression conditionNode;
    private final SBlock blockNode;

    public SDo(int identifier, Location location, AExpression conditionNode, SBlock blockNode) {
        super(identifier, location);

        this.conditionNode = Objects.requireNonNull(conditionNode);
        this.blockNode = blockNode;
    }

    public AExpression getConditionNode() {
        return conditionNode;
    }

    public SBlock getBlockNode() {
        return blockNode;
    }

    @Override
    public  void visit(UserTreeVisitor userTreeVisitor, Scope scope) {
        userTreeVisitor.visitDo(this, scope);
    }

    @Override
    public  void visitChildren(UserTreeVisitor userTreeVisitor, Scope scope) {
        if (blockNode != null) {
            blockNode.visit(userTreeVisitor, scope);
        }

        conditionNode.visit(userTreeVisitor, scope);
    }
}