/**
 * Copyright (c) 2011 NumberFour AG
 * 
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 * 
 * Contributors:
 *     NumberFour AG - initial API and Implementation (Alex Panchenko)
 */
package org.eclipse.dltk.javascript.typeinfo.model.impl;

import org.eclipse.dltk.javascript.typeinfo.IRLocalType;
import org.eclipse.dltk.javascript.typeinfo.IRRecordType;
import org.eclipse.dltk.javascript.typeinfo.IRType;
import org.eclipse.dltk.javascript.typeinfo.ITypeInfoContext;
import org.eclipse.dltk.javascript.typeinfo.ITypeSystem;
import org.eclipse.dltk.javascript.typeinfo.RTypes;
import org.eclipse.dltk.javascript.typeinfo.TypeUtil;
import org.eclipse.dltk.javascript.typeinfo.model.SimpleType;
import org.eclipse.dltk.javascript.typeinfo.model.Type;
import org.eclipse.dltk.javascript.typeinfo.model.TypeInfoModelPackage;
import org.eclipse.dltk.javascript.typeinfo.model.TypeKind;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.impl.MinimalEObjectImpl;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Simple Type</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.dltk.javascript.typeinfo.model.impl.SimpleTypeImpl#getTarget <em>Target</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class SimpleTypeImpl extends MinimalEObjectImpl implements SimpleType {
    /**
     * The cached value of the '{@link #getTarget() <em>Target</em>}' reference.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @see #getTarget()
     * @generated
     * @ordered
     */
    protected Type target;

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

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

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public Type getTarget() {
        if (target != null && target.eIsProxy()) {
            InternalEObject oldTarget = (InternalEObject)target;
            target = (Type)eResolveProxy(oldTarget);
            if (target != oldTarget) {
                if (eNotificationRequired())
                    eNotify(new ENotificationImpl(this, Notification.RESOLVE, TypeInfoModelPackage.SIMPLE_TYPE__TARGET, oldTarget, target));
            }
        }
        return target;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public Type basicGetTarget() {
        return target;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void setTarget(Type newTarget) {
        Type oldTarget = target;
        target = newTarget;
        if (eNotificationRequired())
            eNotify(new ENotificationImpl(this, Notification.SET, TypeInfoModelPackage.SIMPLE_TYPE__TARGET, oldTarget, target));
    }

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated NOT
	 */
	public String getName() {
		if (target != null) {
			return target.getName();
		}
		return null;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated NOT
	 */
    public IRType toRType(ITypeSystem typeSystem) {
		Type t = getTarget();
		if (t == null) {
			return RTypes.any();
		}
		if (t.isProxy() && typeSystem != null) {
			t = typeSystem.resolveType(t);
		}
		if (typeSystem instanceof ITypeInfoContext
				&& t.getKind() == TypeKind.UNKNOWN) {
			IRLocalType valueType = ((ITypeInfoContext) typeSystem).resolveLocalType(t.getName());
			if (valueType != null)
				return valueType;
			IRRecordType recordType = ((ITypeInfoContext) typeSystem)
					.resolveRecordType(t.getName());
			if (recordType != null) {
				return recordType;
			}
		}
		return RTypes.simple(typeSystem, t);
    }

	@Override
	public String toString() {
		return target != null ? target.toString() : getClass().getSimpleName();
	}

	@Override
	public EObject eResolveProxy(InternalEObject proxy) {
		return TypeUtil.resolve(proxy, this);
	}

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

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

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    public void eUnset(int featureID) {
        switch (featureID) {
            case TypeInfoModelPackage.SIMPLE_TYPE__TARGET:
                setTarget((Type)null);
                return;
        }
        super.eUnset(featureID);
    }

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

} //SimpleTypeImpl