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 com.google.common.collect.ImmutableMap;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.annotations.TestOnly;
022    import org.jetbrains.kotlin.diagnostics.Diagnostic;
023    import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics;
024    import org.jetbrains.kotlin.resolve.diagnostics.MutableDiagnosticsWithSuppression;
025    import org.jetbrains.kotlin.util.slicedMap.*;
026    
027    import java.util.Collection;
028    
029    public class BindingTraceContext implements BindingTrace {
030        // These flags are used for debugging of "Rewrite at slice..." exceptions
031        /* package */ final static boolean TRACK_REWRITES = false;
032        /* package */ final static boolean TRACK_WITH_STACK_TRACES = true;
033    
034        private final MutableSlicedMap map;
035        private final MutableDiagnosticsWithSuppression mutableDiagnostics;
036    
037        private final BindingContext bindingContext = new BindingContext() {
038    
039            @NotNull
040            @Override
041            public Diagnostics getDiagnostics() {
042                return mutableDiagnostics;
043            }
044    
045            @Override
046            public <K, V> V get(ReadOnlySlice<K, V> slice, K key) {
047                return BindingTraceContext.this.get(slice, key);
048            }
049    
050            @NotNull
051            @Override
052            public <K, V> Collection<K> getKeys(WritableSlice<K, V> slice) {
053                return BindingTraceContext.this.getKeys(slice);
054            }
055    
056            @NotNull
057            @TestOnly
058            @Override
059            public <K, V> ImmutableMap<K, V> getSliceContents(@NotNull ReadOnlySlice<K, V> slice) {
060                return map.getSliceContents(slice);
061            }
062        };
063    
064        public BindingTraceContext() {
065            //noinspection ConstantConditions
066            this(TRACK_REWRITES ? new TrackingSlicedMap(TRACK_WITH_STACK_TRACES) : SlicedMapImpl.create());
067        }
068    
069    
070        private BindingTraceContext(@NotNull MutableSlicedMap map) {
071            this.map = map;
072            this.mutableDiagnostics = new MutableDiagnosticsWithSuppression(bindingContext, Diagnostics.EMPTY);
073        }
074    
075        @TestOnly
076        public static BindingTraceContext createTraceableBindingTrace() {
077            return new BindingTraceContext(new TrackingSlicedMap(TRACK_WITH_STACK_TRACES));
078        }
079    
080        @Override
081        public void report(@NotNull Diagnostic diagnostic) {
082            mutableDiagnostics.report(diagnostic);
083        }
084    
085        public void clearDiagnostics() {
086            mutableDiagnostics.clear();
087        }
088    
089        @NotNull
090        @Override
091        public BindingContext getBindingContext() {
092            return bindingContext;
093        }
094    
095        @Override
096        public <K, V> void record(WritableSlice<K, V> slice, K key, V value) {
097            map.put(slice, key, value);
098        }
099    
100        @Override
101        public <K> void record(WritableSlice<K, Boolean> slice, K key) {
102            record(slice, key, true);
103        }
104    
105        @Override
106        public <K, V> V get(ReadOnlySlice<K, V> slice, K key) {
107            return map.get(slice, key);
108        }
109    
110        @NotNull
111        @Override
112        public <K, V> Collection<K> getKeys(WritableSlice<K, V> slice) {
113            return map.getKeys(slice);
114        }
115    }