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.receivers;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.types.JetType;
021    
022    public interface ReceiverValue {
023        ReceiverValue NO_RECEIVER = new ReceiverValue() {
024            @NotNull
025            @Override
026            public JetType getType() {
027                throw new UnsupportedOperationException("NO_RECEIVER.getType()");
028            }
029    
030            @Override
031            public boolean exists() {
032                return false;
033            }
034    
035            @Override
036            public String toString() {
037                return "NO_RECEIVER";
038            }
039        };
040    
041        @NotNull
042        JetType getType();
043    
044        boolean exists();
045    }