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    
017    package org.jetbrains.jet.lang.resolve.lazy.descriptors;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.impl.AbstractNamespaceDescriptorImpl;
021    import org.jetbrains.jet.lang.descriptors.NamespaceDescriptor;
022    import org.jetbrains.jet.lang.descriptors.impl.NamespaceDescriptorParent;
023    import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
024    import org.jetbrains.jet.lang.resolve.DescriptorUtils;
025    import org.jetbrains.jet.lang.resolve.lazy.ForceResolveUtil;
026    import org.jetbrains.jet.lang.resolve.lazy.LazyDescriptor;
027    import org.jetbrains.jet.lang.resolve.lazy.ResolveSession;
028    import org.jetbrains.jet.lang.resolve.lazy.declarations.PackageMemberDeclarationProvider;
029    import org.jetbrains.jet.lang.resolve.name.FqName;
030    import org.jetbrains.jet.lang.resolve.name.Name;
031    import org.jetbrains.jet.lang.resolve.scopes.*;
032    
033    import java.util.Collections;
034    
035    public 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    }