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.resolve;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.annotations.Nullable;
021    import org.jetbrains.kotlin.diagnostics.DiagnosticSink;
022    import org.jetbrains.kotlin.psi.KtExpression;
023    import org.jetbrains.kotlin.types.KotlinType;
024    import org.jetbrains.kotlin.util.slicedMap.ReadOnlySlice;
025    import org.jetbrains.kotlin.util.slicedMap.WritableSlice;
026    
027    import java.util.Collection;
028    
029    public interface BindingTrace extends DiagnosticSink {
030    
031        @NotNull
032        BindingContext getBindingContext();
033        
034        <K, V> void record(WritableSlice<K, V> slice, K key, V value);
035    
036        // Writes TRUE for a boolean value
037        <K> void record(WritableSlice<K, Boolean> slice, K key);
038    
039        @Nullable
040        <K, V> V get(ReadOnlySlice<K, V> slice, K key);
041    
042        // slice.isCollective() must be true
043        @NotNull
044        <K, V> Collection<K> getKeys(WritableSlice<K, V> slice);
045    
046        /**
047         * Expression type should be taken from EXPRESSION_TYPE_INFO slice
048         */
049        @Nullable
050        KotlinType getType(@NotNull KtExpression expression);
051    
052        /**
053         * Expression type should be recorded into EXPRESSION_TYPE_INFO slice
054         * (either updated old or a new one)
055         */
056        void recordType(@NotNull KtExpression expression, @Nullable KotlinType type);
057    }