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.descriptors;
018
019import org.jetbrains.annotations.NotNull;
020import org.jetbrains.annotations.Nullable;
021import org.jetbrains.jet.lang.types.JetType;
022import org.jetbrains.jet.lang.types.TypeSubstitutor;
023
024import java.util.List;
025import java.util.Set;
026
027public 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}