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.scopes;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
021    import org.jetbrains.jet.lang.descriptors.ReceiverParameterDescriptor;
022    
023    import java.util.Collections;
024    import java.util.List;
025    
026    /**
027     * Members of the class object are accessible from the class.
028     * Scope lazily delegates requests to class object scope.
029     */
030    public class ClassObjectMixinScope extends AbstractScopeAdapter {
031        private final ClassDescriptor classObjectDescriptor;
032    
033        public ClassObjectMixinScope(ClassDescriptor classObjectDescriptor) {
034            this.classObjectDescriptor = classObjectDescriptor;
035        }
036    
037        @NotNull
038        @Override
039        protected JetScope getWorkerScope() {
040            return classObjectDescriptor.getDefaultType().getMemberScope();
041        }
042    
043        @NotNull
044        @Override
045        public List<ReceiverParameterDescriptor> getImplicitReceiversHierarchy() {
046            return Collections.singletonList(classObjectDescriptor.getThisAsReceiverParameter());
047        }
048    }