001/*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.jetbrains.jet.lang.resolve.lazy.descriptors;
018
019import org.jetbrains.annotations.NotNull;
020import org.jetbrains.jet.lang.descriptors.impl.AbstractNamespaceDescriptorImpl;
021import org.jetbrains.jet.lang.descriptors.NamespaceDescriptor;
022import org.jetbrains.jet.lang.descriptors.impl.NamespaceDescriptorParent;
023import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
024import org.jetbrains.jet.lang.resolve.DescriptorUtils;
025import org.jetbrains.jet.lang.resolve.lazy.ForceResolveUtil;
026import org.jetbrains.jet.lang.resolve.lazy.LazyDescriptor;
027import org.jetbrains.jet.lang.resolve.lazy.ResolveSession;
028import org.jetbrains.jet.lang.resolve.lazy.declarations.PackageMemberDeclarationProvider;
029import org.jetbrains.jet.lang.resolve.name.FqName;
030import org.jetbrains.jet.lang.resolve.name.Name;
031import org.jetbrains.jet.lang.resolve.scopes.*;
032
033import java.util.Collections;
034
035public class LazyPackageDescriptor extends AbstractNamespaceDescriptorImpl implements LazyDescriptor, NamespaceDescriptor {
036    private final JetScope memberScope;
037    private final JetScope lazyScope;
038
039    public LazyPackageDescriptor(
040            @NotNull NamespaceDescriptorParent containingDeclaration,
041            @NotNull Name name,
042            @NotNull ResolveSession resolveSession,
043            @NotNull PackageMemberDeclarationProvider declarationProvider
044    ) {
045        super(containingDeclaration, Collections.<AnnotationDescriptor>emptyList(), name);
046
047        WritableScopeImpl scope = new WritableScopeImpl(JetScope.EMPTY, this, RedeclarationHandler.DO_NOTHING, "Package scope");
048        resolveSession.getRootModuleDescriptor().getModuleConfiguration().extendNamespaceScope(resolveSession.getTrace(), this, scope);
049        scope.changeLockLevel(WritableScope.LockLevel.READING);
050
051        this.lazyScope = new LazyPackageMemberScope(resolveSession, declarationProvider, this);
052
053        this.memberScope = new ChainedScope(this, "Lazy package members scope: " + name, lazyScope, scope);
054    }
055
056    @NotNull
057    @Override
058    public JetScope getMemberScope() {
059        return memberScope;
060    }
061
062    @NotNull
063    @Override
064    public FqName getFqName() {
065        return DescriptorUtils.getFQName(this).toSafe();
066    }
067
068    @Override
069    public void addNamespace(@NotNull NamespaceDescriptor namespaceDescriptor) {
070        throw new UnsupportedOperationException(); // TODO
071    }
072
073    @Override
074    public void forceResolveAllContents() {
075        ForceResolveUtil.forceResolveAllContents(lazyScope);
076    }
077}