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/**
 * Copyright (C) 2010-2018 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see .
 */
/**
 * 
 */
package org.evosuite.symbolic.expr.str;

import java.util.HashSet;
import java.util.Set;

import org.evosuite.symbolic.expr.AbstractExpression;
import org.evosuite.symbolic.expr.ExpressionVisitor;
import org.evosuite.symbolic.expr.Variable;

/**
 * 
 * StringConstant class.
 * 
 * 
 * @author krusev
 */
public final class StringConstant extends AbstractExpression implements
        StringValue {

	private static final long serialVersionUID = 6785078290753992374L;

	/**
	 * 
	 * Constructor for StringConstant.
	 * 
	 * 
	 * @param StringValue
	 *            a {@link java.lang.String} object.
	 */
	public StringConstant(String stringValue) {
		super(stringValue, 1, false);

	}

	/** {@inheritDoc} */
	@Override
	public String toString() {
		return this.concreteValue;
	}

	/** {@inheritDoc} */
	@Override
	public boolean equals(Object obj) {
		if (obj instanceof StringConstant) {
			StringConstant v = (StringConstant) obj;
			return this.concreteValue.equals(v.concreteValue);
		}
		return false;
	}

	@Override
	public int hashCode() {
		return this.concreteValue.hashCode();
	}

	@Override
	public Set> getVariables() {
		Set> variables = new HashSet>();
		return variables;
	}
	
	@Override
	public  K accept(ExpressionVisitor v, V arg) {
		return v.visit(this, arg);
	}


}