/**
 * Copyright (c) 2020 CEA LIST.
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html\n\nContributors:
 *  Arnault Lapitre (CEA LIST) arnault.lapitre@cea.fr
 *  - Initial API and Implementation
 */
package org.eclipse.efm.ecore.formalml.expression.impl;

import org.eclipse.efm.ecore.formalml.datatype.DataType;

import org.eclipse.efm.ecore.formalml.expression.CastExpression;
import org.eclipse.efm.ecore.formalml.expression.ExpressionPackage;

import org.eclipse.emf.common.notify.Notification;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Cast Expression</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.efm.ecore.formalml.expression.impl.CastExpressionImpl#getDatatype <em>Datatype</em>}</li>
 * </ul>
 *
 * @generated
 */
public class CastExpressionImpl extends UnaryExpressionImpl implements CastExpression {
	/**
	 * The cached value of the '{@link #getDatatype() <em>Datatype</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getDatatype()
	 * @generated
	 * @ordered
	 */
	protected DataType datatype;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected CastExpressionImpl() {
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return ExpressionPackage.Literals.CAST_EXPRESSION;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public DataType getDatatype() {
		if (datatype != null && datatype.eIsProxy()) {
			InternalEObject oldDatatype = (InternalEObject)datatype;
			datatype = (DataType)eResolveProxy(oldDatatype);
			if (datatype != oldDatatype) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ExpressionPackage.CAST_EXPRESSION__DATATYPE, oldDatatype, datatype));
			}
		}
		return datatype;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public DataType basicGetDatatype() {
		return datatype;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setDatatype(DataType newDatatype) {
		DataType oldDatatype = datatype;
		datatype = newDatatype;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ExpressionPackage.CAST_EXPRESSION__DATATYPE, oldDatatype, datatype));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case ExpressionPackage.CAST_EXPRESSION__DATATYPE:
				if (resolve) return getDatatype();
				return basicGetDatatype();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionPackage.CAST_EXPRESSION__DATATYPE:
				setDatatype((DataType)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionPackage.CAST_EXPRESSION__DATATYPE:
				setDatatype((DataType)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ExpressionPackage.CAST_EXPRESSION__DATATYPE:
				return datatype != null;
		}
		return super.eIsSet(featureID);
	}

} //CastExpressionImpl