/**
 * Copyright (C) 2010-2017 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 <http://www.gnu.org/licenses/>.
 */
package org.evosuite.graphs.ccfg;

import org.evosuite.graphs.cfg.BytecodeInstruction;

public class CCFGMethodCallEdge extends CCFGEdge {

	private static final long serialVersionUID = -1638791707105165885L;

	private final BytecodeInstruction callInstruction;

	private final boolean isCallingEdge;

	/**
	 * <p>
	 * Constructor for CCFGMethodCallEdge.
	 * </p>
	 * 
	 * @param callInstruction
	 *            a {@link org.evosuite.graphs.cfg.BytecodeInstruction} object.
	 * @param isCallingEdge
	 *            a boolean.
	 */
	public CCFGMethodCallEdge(BytecodeInstruction callInstruction, boolean isCallingEdge) {
		this.callInstruction = callInstruction;
		this.isCallingEdge = isCallingEdge;
	}

	/**
	 * Marks whether this is a calling edge or a returning edge
	 * 
	 * @return a boolean.
	 */
	public boolean isCallingEdge() {
		return isCallingEdge;
	}

	/**
	 * <p>
	 * Getter for the field <code>callInstruction</code>.
	 * </p>
	 * 
	 * @return a {@link org.evosuite.graphs.cfg.BytecodeInstruction} object.
	 */
	public BytecodeInstruction getCallInstruction() {
		return callInstruction;
	}

	/** {@inheritDoc} */
	@Override
	public String toString() {
		return (isCallingEdge ? "calling " : "returning from ")
		        + callInstruction.getCalledMethod();
	}
}