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;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.annotations.Nullable;
021    import org.jetbrains.jet.lang.types.JetType;
022    import org.jetbrains.jet.lang.types.TypeSubstitutor;
023    
024    import java.util.List;
025    import java.util.Set;
026    
027    public interface CallableDescriptor extends DeclarationDescriptorWithVisibility, DeclarationDescriptorNonRoot {
028        @Nullable
029        ReceiverParameterDescriptor getReceiverParameter();
030    
031        @Nullable
032        ReceiverParameterDescriptor getExpectedThisObject();
033    
034        @NotNull
035        List<TypeParameterDescriptor> getTypeParameters();
036    
037        /**
038         * Method may return null for not yet fully initialized object or if error occurred.
039         */
040        @Nullable
041        JetType getReturnType();
042    
043        @NotNull
044        @Override
045        CallableDescriptor getOriginal();
046    
047        @Override
048        CallableDescriptor substitute(@NotNull TypeSubstitutor substitutor);
049    
050        @NotNull
051        List<ValueParameterDescriptor> getValueParameters();
052    
053        @NotNull
054        Set<? extends CallableDescriptor> getOverriddenDescriptors();
055    }