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.types;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
021    import org.jetbrains.jet.lang.resolve.name.Name;
022    import org.jetbrains.jet.lang.resolve.scopes.JetScope;
023    
024    import java.util.List;
025    
026    /**
027     * This is a fake type assigned to namespace expressions. Only member lookup is
028     * supposed to be done on these types.
029     */
030    public class NamespaceType implements JetType {
031        private final Name name;
032        @NotNull
033        private final JetScope memberScope;
034    
035        public NamespaceType(@NotNull Name name, @NotNull JetScope memberScope) {
036            this.name = name;
037            this.memberScope = memberScope;
038        }
039    
040        @NotNull
041        @Override
042        public JetScope getMemberScope() {
043            return memberScope;
044        }
045    
046        @Override
047        public boolean isError() {
048            return false;
049        }
050    
051        @NotNull
052        @Override
053        public TypeConstructor getConstructor() {
054            return throwException();
055        }
056    
057        private TypeConstructor throwException() {
058            throw new UnsupportedOperationException("Only member lookup is allowed on a namespace type " + name);
059        }
060    
061        @NotNull
062        @Override
063        public List<TypeProjection> getArguments() {
064            throwException();
065            return null;
066        }
067    
068        @Override
069        public boolean isNullable() {
070            throwException();
071            return false;
072        }
073    
074        @Override
075        public List<AnnotationDescriptor> getAnnotations() {
076            throwException();
077            return null;
078        }
079    }