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.types;
018
019import org.jetbrains.annotations.NotNull;
020import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
021import org.jetbrains.jet.lang.resolve.name.Name;
022import org.jetbrains.jet.lang.resolve.scopes.JetScope;
023
024import 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 */
030public 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    @NotNull
047    @Override
048    public TypeConstructor getConstructor() {
049        return throwException();
050    }
051
052    private TypeConstructor throwException() {
053        throw new UnsupportedOperationException("Only member lookup is allowed on a namespace type " + name);
054    }
055
056    @NotNull
057    @Override
058    public List<TypeProjection> getArguments() {
059        throwException();
060        return null;
061    }
062
063    @Override
064    public boolean isNullable() {
065        throwException();
066        return false;
067    }
068
069    @Override
070    public List<AnnotationDescriptor> getAnnotations() {
071        throwException();
072        return null;
073    }
074}