/**
 */
package io.sarl.lang.sarl.impl;

import io.sarl.lang.sarl.SarlFormalParameter;
import io.sarl.lang.sarl.SarlPackage;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;

import org.eclipse.xtend.core.xtend.impl.XtendParameterImpl;

import org.eclipse.xtext.xbase.XExpression;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Formal Parameter</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link io.sarl.lang.sarl.impl.SarlFormalParameterImpl#getDefaultValue <em>Default Value</em>}</li>
 * </ul>
 *
 * @generated
 */
public class SarlFormalParameterImpl extends XtendParameterImpl implements SarlFormalParameter
{
	/**
	 * The cached value of the '{@link #getDefaultValue() <em>Default Value</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getDefaultValue()
	 * @generated
	 * @ordered
	 */
	protected XExpression defaultValue;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected SarlFormalParameterImpl()
	{
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass()
	{
		return SarlPackage.Literals.SARL_FORMAL_PARAMETER;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public XExpression getDefaultValue()
	{
		return defaultValue;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetDefaultValue(XExpression newDefaultValue, NotificationChain msgs)
	{
		XExpression oldDefaultValue = defaultValue;
		defaultValue = newDefaultValue;
		if (eNotificationRequired())
		{
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE, oldDefaultValue, newDefaultValue);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setDefaultValue(XExpression newDefaultValue)
	{
		if (newDefaultValue != defaultValue)
		{
			NotificationChain msgs = null;
			if (defaultValue != null)
				msgs = ((InternalEObject)defaultValue).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE, null, msgs);
			if (newDefaultValue != null)
				msgs = ((InternalEObject)newDefaultValue).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE, null, msgs);
			msgs = basicSetDefaultValue(newDefaultValue, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE, newDefaultValue, newDefaultValue));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs)
	{
		switch (featureID)
		{
			case SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE:
				return basicSetDefaultValue(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType)
	{
		switch (featureID)
		{
			case SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE:
				return getDefaultValue();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue)
	{
		switch (featureID)
		{
			case SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE:
				setDefaultValue((XExpression)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID)
	{
		switch (featureID)
		{
			case SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE:
				setDefaultValue((XExpression)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID)
	{
		switch (featureID)
		{
			case SarlPackage.SARL_FORMAL_PARAMETER__DEFAULT_VALUE:
				return defaultValue != null;
		}
		return super.eIsSet(featureID);
	}

} //SarlFormalParameterImpl
