org.axdt.avm.scoping.AvmPropertyScope.java Source code

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Here is the source code for org.axdt.avm.scoping.AvmPropertyScope.java

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/*******************************************************************************
 * Copyright (c) 2010 Martin Schnabel <mb0@mb0.org>.
 * 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
 ******************************************************************************/
package org.axdt.avm.scoping;

import java.util.Collections;

import org.axdt.avm.access.AvmContainerPackage;
import org.axdt.avm.model.AvmDeclaredType;
import org.axdt.avm.model.AvmPackage;
import org.axdt.avm.model.AvmReferable;
import org.axdt.avm.model.AvmType;
import org.axdt.avm.util.AvmTypeAccess;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.xtext.resource.IEObjectDescription;
import org.eclipse.xtext.scoping.IScope;

import com.google.common.collect.Iterables;

public abstract class AvmPropertyScope<T extends EObject> extends AvmGenericScope<T> {

    public AvmPropertyScope(IScope parent, T element, EReference ref, IScope lookup) {
        super(parent, element, ref, lookup);
    }

    @Override
    protected Iterable<IEObjectDescription> getCandidates() {
        AvmTypeAccess access = getQualifierType();
        if (access == null)
            return Collections.emptySet();
        Iterable<IEObjectDescription> dynDesc = null;
        if (access instanceof AvmTypeAccess.Builder) {
            AvmPackage pack = ((AvmTypeAccess.Builder) access).getPackage();
            if (pack instanceof AvmContainerPackage) {
                return ((AvmContainerPackage) pack).getChildren();
            }
            return Iterables.transform(Iterables.filter(pack.eContents(), AvmReferable.class), GetDesciption);
        } else if (access != AvmTypeAccess.NULL) {
            AvmType type = access.getType();
            type = resolveType(type, null);
            if (type.isDynamic()) {
                AvmReferable dynIdent = getDynamicIdentifiable(getReference());
                if (dynIdent != null)
                    dynDesc = Collections.singleton(GetDesciption.apply(dynIdent));
            }
            if (type instanceof AvmDeclaredType) {
                AvmDeclaredType typeDec = (AvmDeclaredType) type;
                Iterable<IEObjectDescription> members = Iterables.transform(getAllMembers(typeDec, access),
                        GetDesciption);
                if (dynDesc != null)
                    members = Iterables.concat(members, dynDesc);
                return members;
            }
        }
        if (dynDesc != null)
            return dynDesc;
        return Collections.emptySet();
    }

    protected abstract AvmTypeAccess getQualifierType();

    protected abstract EObject getReference();
}