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/* 
 * 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 org.drools.compiler.lang;

import org.antlr.runtime.Token;
import org.antlr.runtime.tree.CommonTree;
import org.antlr.runtime.tree.Tree;

/**
 * An extension of the CommonTree class that keeps the char offset information.
 */
public class DroolsTree extends CommonTree {

    /**
     * start char offset
     */
    int startCharOffset = -1;

    /**
     * end char offset
     */
    int endCharOffset = -1;

    /**
     * editor type
     *
     * @see DroolsEditorType
     */
    DroolsEditorType editorElementType = DroolsEditorType.IDENTIFIER;

    public DroolsTree(DroolsTree node) {
        super(node);
        this.token = node.token;
    }

    public DroolsTree(Token token) {
        super(token);
    }

    public Tree dupNode() {
        return new DroolsTree(this);
    }

    /**
     * getter for start char offset
     *
     * @return start char offset
     */
    public int getStartCharOffset() {
        return startCharOffset;
    }

    /**
     * setter for start char offset
     *
     * @param startCharOffset
     *            start char offset
     */
    public void setStartCharOffset(int startCharOffset) {
        this.startCharOffset = startCharOffset;
    }

    /**
     * getter of end char offset
     *
     * @return end char offset
     */
    public int getEndCharOffset() {
        return endCharOffset;
    }

    /**
     * setter of end char offset
     *
     * @param endCharOffset
     *            end char offset
     */
    public void setEndCharOffset(int endCharOffset) {
        this.endCharOffset = endCharOffset;
    }

    /**
     * getter of editor type
     *
     * @return editor type
     * @see DroolsEditorType
     */
    public DroolsEditorType getEditorElementType() {
        return editorElementType;
    }

    /**
     * setter of editor type
     *
     * @param editorElementType
     *            editor type
     * @see DroolsEditorType
     */
    public void setEditorElementType(DroolsEditorType editorElementType) {
        this.editorElementType = editorElementType;
    }
}