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.descriptors.impl;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.DeclarationDescriptorVisitor;
021    import org.jetbrains.jet.lang.descriptors.ModuleDescriptor;
022    import org.jetbrains.jet.lang.descriptors.NamespaceDescriptor;
023    import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
024    import org.jetbrains.jet.lang.resolve.name.Name;
025    import org.jetbrains.jet.lang.types.TypeSubstitutor;
026    
027    import java.util.List;
028    
029    public abstract class AbstractNamespaceDescriptorImpl extends DeclarationDescriptorNonRootImpl implements NamespaceDescriptor {
030        public AbstractNamespaceDescriptorImpl(
031                @NotNull NamespaceDescriptorParent containingDeclaration,
032                List<AnnotationDescriptor> annotations,
033                @NotNull Name name) {
034    
035            super(containingDeclaration, annotations, name);
036    
037            boolean rootAccordingToContainer = containingDeclaration instanceof ModuleDescriptor;
038            if (rootAccordingToContainer != name.isSpecial()) {
039                throw new IllegalStateException("something is wrong, name: " + name + ", container: " + containingDeclaration);
040            }
041        }
042    
043        @Override
044        @NotNull
045        public NamespaceDescriptorParent getContainingDeclaration() {
046            return (NamespaceDescriptorParent) super.getContainingDeclaration();
047        }
048    
049        @Override
050        public void addNamespace(@NotNull NamespaceDescriptor namespaceDescriptor) {
051            throw new IllegalStateException("immutable");
052        }
053    
054        @NotNull
055        @Override
056        public NamespaceDescriptor substitute(@NotNull TypeSubstitutor substitutor) {
057            throw new UnsupportedOperationException("This operation does not make sense for a namespace");
058        }
059    
060        @Override
061        public <R, D> R accept(DeclarationDescriptorVisitor<R, D> visitor, D data) {
062            return visitor.visitNamespaceDescriptor(this, data);
063        }
064    }