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/*
 * Copyright (c) 2020-2022 vitasystems GmbH and Hannover Medical School.
 *
 * This file is part of project EHRbase
 *
 * 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
 *
 *     https://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.ehrbase.aql.containment;

import org.antlr.v4.runtime.CommonToken;
import org.antlr.v4.runtime.tree.ParseTree;
import org.antlr.v4.runtime.tree.TerminalNode;

/**
 * Compare if two ANTLR parsed tokens are equivalent.
 *
 * @author Christian Chevalley
 * @since 1.0
 */
public class CommonTokenCompare {

    private final ParseTree token;

    public CommonTokenCompare(ParseTree token) {
        this.token = token;
    }

    public boolean isEquals(int value) {
        return (token instanceof TerminalNode
                && (token.getPayload()) instanceof CommonToken
                && ((CommonToken) (token.getPayload())).getType() == value);
    }
}