001    /*
002     * Copyright 2010-2015 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.kotlin.descriptors;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.annotations.Nullable;
021    import org.jetbrains.kotlin.types.TypeSubstitutor;
022    
023    import java.util.Collection;
024    
025    public interface FunctionDescriptor extends CallableMemberDescriptor {
026        @Override
027        @NotNull
028        DeclarationDescriptor getContainingDeclaration();
029    
030        @NotNull
031        @Override
032        FunctionDescriptor getOriginal();
033    
034        @NotNull
035        @Override
036        FunctionDescriptor substitute(@NotNull TypeSubstitutor substitutor);
037    
038        /**
039         * This method should be used with q Wgreat care, because if descriptor is substituted one, calling 'getOverriddenDescriptors'
040         * may force lazy computation, that's unnecessary in most cases.
041         * So, if 'getOriginal().getOverriddenDescriptors()' is enough for you, please use it instead.
042         * @return
043         */
044        @Override
045        @NotNull
046        Collection<? extends FunctionDescriptor> getOverriddenDescriptors();
047    
048        /**
049         * @return descriptor that represents initial signature, e.g in case of result SimpleFunctionDescriptor.createRenamedCopy it returns
050         * descriptor before rename
051         */
052        @Nullable
053        FunctionDescriptor getInitialSignatureDescriptor();
054    
055        /**
056         * @return true if descriptor signature clashed with some other signature and it's supposed to be legal
057         * See java.nio.CharBuffer
058         */
059        boolean isHiddenToOvercomeSignatureClash();
060    
061        @NotNull
062        @Override
063        FunctionDescriptor copy(DeclarationDescriptor newOwner, Modality modality, Visibility visibility, Kind kind, boolean copyOverrides);
064    
065        boolean isOperator();
066    
067        boolean isInfix();
068    
069        boolean isInline();
070    
071        boolean isTailrec();
072    
073        boolean isExternal();
074    }