2 * Copyright 2000-2009 JetBrains s.r.o.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package com
.intellij
.slicer
;
18 import com
.intellij
.usageView
.UsageInfo
;
19 import gnu
.trove
.THashMap
;
20 import gnu
.trove
.TObjectHashingStrategy
;
26 */ // rehash map on each PSI modification since SmartPsiPointer's hashCode() and equals() are changed
28 private static final TObjectHashingStrategy
<SliceUsage
> USAGEINFO_EQUALITY
= new TObjectHashingStrategy
<SliceUsage
>() {
29 public int computeHashCode(SliceUsage object
) {
30 UsageInfo info
= object
.getUsageInfo();
31 return info
.startOffset
+ info
.endOffset
* 31;
34 public boolean equals(SliceUsage o1
, SliceUsage o2
) {
35 return o1
.getUsageInfo().equals(o2
.getUsageInfo());
38 private final Map
<SliceUsage
, SliceNode
> myDuplicates
= new THashMap
<SliceUsage
, SliceNode
>(USAGEINFO_EQUALITY
);
40 public SliceNode
putNodeCheckDupe(SliceNode node
) {
41 SliceUsage usage
= node
.getValue();
42 SliceNode eq
= myDuplicates
.get(usage
);
44 myDuplicates
.put(usage
, node
);