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/*******************************************************************************
* Copyright (c) 2004, 2005 IBM Corporation and others.
* 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
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jem.internal.instantiation.impl;
/*
* $RCSfile: PTInfixExpressionImpl.java,v $
* $Revision: 1.5 $ $Date: 2005/08/24 20:20:24 $
*/
import java.util.Collection;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.jem.internal.instantiation.*;
import org.eclipse.jem.internal.instantiation.PTExpression;
import org.eclipse.jem.internal.instantiation.PTInfixExpression;
import org.eclipse.jem.internal.instantiation.PTInfixOperator;
import org.eclipse.jem.internal.instantiation.InstantiationPackage;
/**
* <!-- begin-user-doc -->
* An implementation of the model object '<em><b>Infix Expression</b></em>'.
* <!-- end-user-doc -->
* <p>
* The following features are implemented:
* <ul>
* <li>{@link org.eclipse.jem.internal.instantiation.impl.PTInfixExpressionImpl#getLeftOperand <em>Left Operand</em>}</li>
* <li>{@link org.eclipse.jem.internal.instantiation.impl.PTInfixExpressionImpl#getOperator <em>Operator</em>}</li>
* <li>{@link org.eclipse.jem.internal.instantiation.impl.PTInfixExpressionImpl#getRightOperand <em>Right Operand</em>}</li>
* <li>{@link org.eclipse.jem.internal.instantiation.impl.PTInfixExpressionImpl#getExtendedOperands <em>Extended Operands</em>}</li>
* </ul>
* </p>
*
* @generated
*/
public class PTInfixExpressionImpl extends PTExpressionImpl implements PTInfixExpression {
/**
* The cached value of the '{@link #getLeftOperand() <em>Left Operand</em>}' containment reference.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getLeftOperand()
* @generated
* @ordered
*/
protected PTExpression leftOperand = null;
/**
* The default value of the '{@link #getOperator() <em>Operator</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getOperator()
* @generated
* @ordered
*/
protected static final PTInfixOperator OPERATOR_EDEFAULT = PTInfixOperator.TIMES_LITERAL;
/**
* The cached value of the '{@link #getOperator() <em>Operator</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getOperator()
* @generated
* @ordered
*/
protected PTInfixOperator operator = OPERATOR_EDEFAULT;
/**
* The cached value of the '{@link #getRightOperand() <em>Right Operand</em>}' containment reference.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getRightOperand()
* @generated
* @ordered
*/
protected PTExpression rightOperand = null;
/**
* The cached value of the '{@link #getExtendedOperands() <em>Extended Operands</em>}' containment reference list.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getExtendedOperands()
* @generated
* @ordered
*/
protected EList extendedOperands = null;
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected PTInfixExpressionImpl() {
super();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected EClass eStaticClass() {
return InstantiationPackage.eINSTANCE.getPTInfixExpression();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public PTExpression getLeftOperand() {
return leftOperand;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetLeftOperand(PTExpression newLeftOperand, NotificationChain msgs) {
PTExpression oldLeftOperand = leftOperand;
leftOperand = newLeftOperand;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND, oldLeftOperand, newLeftOperand);
if (msgs == null) msgs = notification; else msgs.add(notification);
}
return msgs;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setLeftOperand(PTExpression newLeftOperand) {
if (newLeftOperand != leftOperand) {
NotificationChain msgs = null;
if (leftOperand != null)
msgs = ((InternalEObject)leftOperand).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND, null, msgs);
if (newLeftOperand != null)
msgs = ((InternalEObject)newLeftOperand).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND, null, msgs);
msgs = basicSetLeftOperand(newLeftOperand, msgs);
if (msgs != null) msgs.dispatch();
}
else if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND, newLeftOperand, newLeftOperand));
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public PTInfixOperator getOperator() {
return operator;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setOperator(PTInfixOperator newOperator) {
PTInfixOperator oldOperator = operator;
operator = newOperator == null ? OPERATOR_EDEFAULT : newOperator;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INFIX_EXPRESSION__OPERATOR, oldOperator, operator));
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public PTExpression getRightOperand() {
return rightOperand;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetRightOperand(PTExpression newRightOperand, NotificationChain msgs) {
PTExpression oldRightOperand = rightOperand;
rightOperand = newRightOperand;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND, oldRightOperand, newRightOperand);
if (msgs == null) msgs = notification; else msgs.add(notification);
}
return msgs;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setRightOperand(PTExpression newRightOperand) {
if (newRightOperand != rightOperand) {
NotificationChain msgs = null;
if (rightOperand != null)
msgs = ((InternalEObject)rightOperand).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND, null, msgs);
if (newRightOperand != null)
msgs = ((InternalEObject)newRightOperand).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND, null, msgs);
msgs = basicSetRightOperand(newRightOperand, msgs);
if (msgs != null) msgs.dispatch();
}
else if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND, newRightOperand, newRightOperand));
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public EList getExtendedOperands() {
if (extendedOperands == null) {
extendedOperands = new EObjectContainmentEList(PTExpression.class, this, InstantiationPackage.PT_INFIX_EXPRESSION__EXTENDED_OPERANDS);
}
return extendedOperands;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) {
if (featureID >= 0) {
switch (eDerivedStructuralFeatureID(featureID, baseClass)) {
case InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND:
return basicSetLeftOperand(null, msgs);
case InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND:
return basicSetRightOperand(null, msgs);
case InstantiationPackage.PT_INFIX_EXPRESSION__EXTENDED_OPERANDS:
return ((InternalEList)getExtendedOperands()).basicRemove(otherEnd, msgs);
default:
return eDynamicInverseRemove(otherEnd, featureID, baseClass, msgs);
}
}
return eBasicSetContainer(null, featureID, msgs);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public Object eGet(EStructuralFeature eFeature, boolean resolve) {
switch (eDerivedStructuralFeatureID(eFeature)) {
case InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND:
return getLeftOperand();
case InstantiationPackage.PT_INFIX_EXPRESSION__OPERATOR:
return getOperator();
case InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND:
return getRightOperand();
case InstantiationPackage.PT_INFIX_EXPRESSION__EXTENDED_OPERANDS:
return getExtendedOperands();
}
return eDynamicGet(eFeature, resolve);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void eSet(EStructuralFeature eFeature, Object newValue) {
switch (eDerivedStructuralFeatureID(eFeature)) {
case InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND:
setLeftOperand((PTExpression)newValue);
return;
case InstantiationPackage.PT_INFIX_EXPRESSION__OPERATOR:
setOperator((PTInfixOperator)newValue);
return;
case InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND:
setRightOperand((PTExpression)newValue);
return;
case InstantiationPackage.PT_INFIX_EXPRESSION__EXTENDED_OPERANDS:
getExtendedOperands().clear();
getExtendedOperands().addAll((Collection)newValue);
return;
}
eDynamicSet(eFeature, newValue);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void eUnset(EStructuralFeature eFeature) {
switch (eDerivedStructuralFeatureID(eFeature)) {
case InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND:
setLeftOperand((PTExpression)null);
return;
case InstantiationPackage.PT_INFIX_EXPRESSION__OPERATOR:
setOperator(OPERATOR_EDEFAULT);
return;
case InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND:
setRightOperand((PTExpression)null);
return;
case InstantiationPackage.PT_INFIX_EXPRESSION__EXTENDED_OPERANDS:
getExtendedOperands().clear();
return;
}
eDynamicUnset(eFeature);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public boolean eIsSet(EStructuralFeature eFeature) {
switch (eDerivedStructuralFeatureID(eFeature)) {
case InstantiationPackage.PT_INFIX_EXPRESSION__LEFT_OPERAND:
return leftOperand != null;
case InstantiationPackage.PT_INFIX_EXPRESSION__OPERATOR:
return operator != OPERATOR_EDEFAULT;
case InstantiationPackage.PT_INFIX_EXPRESSION__RIGHT_OPERAND:
return rightOperand != null;
case InstantiationPackage.PT_INFIX_EXPRESSION__EXTENDED_OPERANDS:
return extendedOperands != null && !extendedOperands.isEmpty();
}
return eDynamicIsSet(eFeature);
}
public String toString() {
return super.toString(); // Really want toString to be final at PTExpression, but EMF doesn't allow it.
}
/*
* (non-Javadoc)
* @see org.eclipse.jem.internal.instantiation.impl.ExpressionImpl#accept0(org.eclipse.jem.internal.instantiation.ParseVisitor)
*/
protected void accept0(ParseVisitor visitor) {
boolean visitChildren = visitor.visit(this);
if (visitChildren) {
// visit children in normal left to right reading order
acceptChild(visitor, getLeftOperand());
acceptChild(visitor, getRightOperand());
acceptChildren(visitor, extendedOperands);
}
visitor.endVisit(this);
}
/* (non-Javadoc)
* @see org.eclipse.jem.internal.instantiation.PTInfixExpression#asCompressedExpression()
*/
public PTExpression asCompressedExpression() {
// If no left and no right
if(getLeftOperand() == null && getRightOperand() != null){
// no extends so just use the right operand
if(getExtendedOperands().isEmpty()){
return getRightOperand();
} else {
// The right becomes the new left
setLeftOperand(getRightOperand());
// The first operand becomes the right one
setRightOperand((PTExpression) getExtendedOperands().remove(0));
return this;
}
} else if (getRightOperand() == null && getLeftOperand() != null){
// no extends so just use the left operand
if(getExtendedOperands().isEmpty()){
return getLeftOperand();
} else {
// The right becomes the first extended
setRightOperand((PTExpression)getExtendedOperands().remove(0));
return this;
}
}
return this;
}
} //InfixExpressionImpl
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