microsoft / vs-editor-api
Duplication

Places in code with 6 or more lines that are exactly the same.

Intro
  • For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
  • Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
  • You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.
Learn more...
Duplication Overall
  • 4% duplication:
    • 46,398 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 1,877 duplicated lines
  • 373 duplicates
system4% (1,877 lines)
Duplication per Extension
cs4% (1,877 lines)
Duplication per Component (primary)
src/Editor/Text/Impl3% (742 lines)
src/Editor/Text/Def4% (468 lines)
src/Editor/Language/Impl5% (203 lines)
src/Editor/FPF/WindowsBase7% (187 lines)
src/Editor/Text/Util5% (171 lines)
src/Editor/Language/Def1% (50 lines)
src/Editor/Core/Impl7% (49 lines)
src/Editor/Core/Def<1% (7 lines)
ROOT0% (0 lines)
build0% (0 lines)
src/Editor/FPF0% (0 lines)
src/Editor/FPF/PresentationCore0% (0 lines)
src/Editor/FPF/PresentationFramework0% (0 lines)
src/Editor/FPF/UIAutomationClient0% (0 lines)
src/Editor/FPF/UIAutomationProvider0% (0 lines)
src/Editor/FPF/UIAutomationTypes0% (0 lines)
src/Editor/Language/Util0% (0 lines)

Duplication Between Components (50+ lines)

G src/Editor/Language/Def src/Editor/Language/Def src/Editor/Text/Impl src/Editor/Text/Impl src/Editor/Language/Def--src/Editor/Text/Impl 114 src/Editor/Text/Util src/Editor/Text/Util src/Editor/Text/Impl--src/Editor/Text/Util 86 src/Editor/Text/Def src/Editor/Text/Def src/Editor/Text/Def--src/Editor/Text/Impl 102 src/Editor/Language/Impl src/Editor/Language/Impl src/Editor/Language/Impl--src/Editor/Text/Impl 84

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Longest Duplicates
The list of 20 longest duplicates.
See data for all 373 duplicates...
Size#FoldersFilesLinesCode
34 x 2 src/Editor/Text/Impl/StandaloneUndo
src/Editor/Text/Util/TextDataUtil
WeakReferenceForDictionaryKey.cs
WeakReferenceForKey.cs
 19:102 (100%)
16:99 (100%)
 view
27 x 2 src/Editor/Text/Impl/DifferenceAlgorithm/TFS
src/Editor/Text/Impl/DifferenceAlgorithm/TFS
DiffFinder.cs
LCSDiff.cs
 872:923 (8%)
92:141 (8%)
 view
22 x 2 src/Editor/Text/Impl/EditorOperations
src/Editor/Text/Impl/EditorOperations
EditorOperations.cs
EditorOperations.cs
 278:334 (<1%)
491:547 (<1%)
 view
21 x 2 src/Editor/Text/Impl/EditorOperations
src/Editor/Text/Impl/EditorOperations
EditorOperations.cs
EditorOperations.cs
 944:990 (<1%)
2396:2442 (<1%)
 view
17 x 2 src/Editor/Text/Impl/EditorPrimitives
src/Editor/Text/Impl/EditorPrimitives
DefaultSelectionPrimitive.cs
DefaultTextRangePrimitive.cs
 407:442 (7%)
240:275 (9%)
 view
17 x 2 src/Editor/Text/Def/TextData/Model
src/Editor/Text/Def/TextData/Model
Tracking.cs
Tracking.cs
 505:528 (5%)
549:572 (5%)
 view
15 x 2 src/Editor/Text/Def/TextData/Model
src/Editor/Text/Def/TextData/Model
Tracking.cs
Tracking.cs
 418:439 (5%)
460:481 (5%)
 view
14 x 2 src/Editor/Text/Def/Internal/Language/Intellisense
src/Editor/Text/Util/TextUIUtil
NativeMethods.cs
WpfHelper.cs
 37:60 (34%)
560:583 (3%)
 view
14 x 2 src/Editor/Text/Impl/DifferenceAlgorithm
src/Editor/Text/Impl/DifferenceAlgorithm
SnapshotLineList.cs
TokenizedStringList.cs
 114:146 (15%)
176:230 (18%)
 view
14 x 2 src/Editor/Text/Util/TextDataUtil
src/Editor/Text/Util/TextDataUtil
MappingHelper.cs
MappingHelper.cs
 77:99 (10%)
148:170 (10%)
 view
13 x 2 src/Editor/FPF/WindowsBase/System.Windows
src/Editor/FPF/WindowsBase/System.Windows
Int32Rect.cs
Rect.cs
 172:189 (14%)
352:369 (4%)
 view
13 x 2 src/Editor/Text/Impl/EditorOperations
src/Editor/Text/Impl/EditorOperations
EditorOperations.cs
EditorOperations.cs
 191:212 (<1%)
405:426 (<1%)
 view
13 x 2 src/Editor/Text/Def/TextData/Model
src/Editor/Text/Def/TextData/Model
Tracking.cs
Tracking.cs
 36:60 (4%)
80:104 (4%)
 view
12 x 2 src/Editor/Text/Def/TextData/Model
src/Editor/Text/Def/TextData/Model
NormalizedSnapshotSpanCollection.cs
NormalizedSnapshotSpanCollection.cs
 468:492 (2%)
507:531 (2%)
 view
12 x 2 src/Editor/Language/Impl/Language/AsyncCompletion
src/Editor/Language/Impl/Language/AsyncCompletion
CompletionModel.cs
CompletionModel.cs
 268:279 (4%)
329:340 (4%)
 view
11 x 2 src/Editor/Language/Impl/Language/AsyncCompletion
src/Editor/Language/Impl/Language/AsyncCompletion
CompletionModel.cs
CompletionModel.cs
 169:179 (4%)
189:199 (4%)
 view
11 x 2 src/Editor/Text/Impl/TextModel/Projection
src/Editor/Text/Impl/TextModel/Projection
BufferGraph.cs
BufferGraph.cs
 127:142 (2%)
208:224 (2%)
 view
11 x 2 src/Editor/Text/Def/TextData/Model
src/Editor/Text/Def/TextData/Model
Tracking.cs
Tracking.cs
 16:34 (3%)
222:240 (3%)
 view
11 x 2 src/Editor/Text/Def/TextData/Model
src/Editor/Text/Def/TextData/Model
Tracking.cs
Tracking.cs
 60:78 (3%)
274:292 (3%)
 view
11 x 2 src/Editor/Text/Impl/TextModel/StringRebuilder
src/Editor/Text/Impl/TextModel/StringRebuilder
StringRebuilderForChars.cs
StringRebuilderForString.cs
 71:84 (27%)
96:109 (19%)
 view
Duplicated Units
The list of top 9 duplicated units.
See data for all 9 unit duplicates...
Size#FoldersFilesLinesCode
34 x 2 src/Editor/Text/Impl/StandaloneUndo
src/Editor/Text/Util/TextDataUtil
WeakReferenceForDictionaryKey.cs
WeakReferenceForKey.cs
 61:103 
58:100 
 view
15 x 2 src/Editor/Text/Util/TextDataUtil
src/Editor/Text/Util/TextDataUtil
TextUtilities.cs
TextUtilities.cs
 32:47 
49:64 
 view
14 x 2 src/Editor/FPF/WindowsBase/System.Windows
src/Editor/FPF/WindowsBase/System.Windows
Int32Rect.cs
Rect.cs
 172:190 
352:370 
 view
13 x 2 src/Editor/Text/Util/TextDataUtil
src/Editor/Text/Util/TextDataUtil
MappingPointSnapshot.cs
MappingSpanSnapshot.cs
 23:38 
25:40 
 view
11 x 2 src/Editor/Text/Util/TextDataUtil
src/Editor/Text/Util/TextDataUtil
GuardedOperations.cs
GuardedOperations.cs
 343:354 
356:367 
 view
8 x 2 src/Editor/Text/Def/TextLogic/Tagging
src/Editor/Text/Def/TextLogic/Tagging
MappingTagSpan.cs
TrackingTagSpan.cs
 55:64 
32:41 
 view
8 x 2 src/Editor/Text/Impl/TextModel/Projection
src/Editor/Text/Impl/TextModel/Projection
ElisionBuffer.cs
ProjectionBuffer.cs
 471:483 
1017:1029 
 view
7 x 2 src/Editor/Text/Impl/EditorOperations
src/Editor/Text/Impl/EditorOperations
AfterTextBufferChangeUndoPrimitive.cs
CollapsedMoveUndoPrimitive.cs
 119:135 
98:108 
 view
7 x 2 src/Editor/Text/Impl/EditorOperations
src/Editor/Text/Impl/EditorOperations
BeforeTextBufferChangeUndoPrimitive.cs
CollapsedMoveUndoPrimitive.cs
 93:109 
35:44 
 view