apple / swift-xcode-playground-support
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
  • 26% duplication:
    • 6,043 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 1,597 duplicated lines
  • 365 duplicates
system26% (1,597 lines)
Duplication per Extension
swift28% (1,579 lines)
m14% (18 lines)
Duplication per Component (primary)
PlaygroundLogger/PlaygroundLoggerTests51% (821 lines)
Legacy/PlaygroundLogger21% (616 lines)
PlaygroundLogger/PlaygroundLogger8% (106 lines)
PlaygroundSupport/XCPlaygroundTests41% (33 lines)
PlaygroundSupport/PlaygroundSupportTests47% (21 lines)
Experimental/PlaygroundRuntime0% (0 lines)
PlaygroundLogger/PlaygroundLoggerTestHost_iOS0% (0 lines)
PlaygroundLogger/PlaygroundLoggerTestHost_tvOS0% (0 lines)
PlaygroundSupport/PlaygroundSupport0% (0 lines)
PlaygroundSupport/XCPlayground0% (0 lines)

Duplication Between Components (50+ lines)

G Legacy/PlaygroundLogger Legacy/PlaygroundLogger PlaygroundLogger/PlaygroundLoggerTests PlaygroundLogger/PlaygroundLoggerTests Legacy/PlaygroundLogger--PlaygroundLogger/PlaygroundLoggerTests 1100

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 365 duplicates...
Size#FoldersFilesLinesCode
128 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 81:292 (32%)
1097:1308 (12%)
 view
69 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 517:613 (17%)
1527:1623 (6%)
 view
53 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 297:373 (13%)
1312:1388 (4%)
 view
45 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 18:79 (11%)
1034:1095 (4%)
 view
44 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 378:445 (11%)
1392:1459 (4%)
 view
36 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
PlaygroundRepresentation.swift
LegacyPlaygroundLoggerTests.swift
 34:80 (65%)
786:832 (3%)
 view
27 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 475:503 (6%)
1487:1515 (2%)
 view
26 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderAPI.swift
LegacyPlaygroundLoggerTests.swift
 19:50 (89%)
993:1024 (2%)
 view
24 x 2 PlaygroundLogger/PlaygroundLoggerTests
PlaygroundLogger/PlaygroundLoggerTests
LegacyPlaygroundLoggerTests.swift
LegacyPlaygroundLoggerTests.swift
 545:577 (2%)
586:618 (2%)
 view
24 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
BytesStorage.swift
LegacyPlaygroundLoggerTests.swift
 15:54 (72%)
711:750 (2%)
 view
20 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
KeyedUnarchiver.swift
LegacyPlaygroundLoggerTests.swift
 15:47 (100%)
840:872 (1%)
 view
17 x 2 PlaygroundLogger/PlaygroundLoggerTests
PlaygroundLogger/PlaygroundLoggerTests
LogPolicyTests.swift
LogPolicyTests.swift
 78:103 (4%)
438:463 (4%)
 view
16 x 2 PlaygroundLogger/PlaygroundLogger/LegacySupport
PlaygroundLogger/PlaygroundLogger
LegacyEntrypoints.swift
LoggerEntrypoints.swift
 110:137 (24%)
110:137 (21%)
 view
15 x 2 PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLogger
LoggerEntrypoints.swift
LoggerEntrypoints.swift
 28:54 (19%)
114:140 (19%)
 view
15 x 2 PlaygroundLogger/PlaygroundLogger/LegacySupport
PlaygroundLogger/PlaygroundLogger/LegacySupport
LegacyEntrypoints.swift
LegacyEntrypoints.swift
 45:71 (22%)
114:140 (22%)
 view
15 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
PlaygroundRepresentation.swift
LegacyPlaygroundLoggerTests.swift
 14:28 (27%)
770:784 (1%)
 view
14 x 2 PlaygroundLogger/PlaygroundLogger/LegacySupport
PlaygroundLogger/PlaygroundLogger
LegacyEntrypoints.swift
LoggerEntrypoints.swift
 114:137 (21%)
28:51 (18%)
 view
14 x 2 PlaygroundLogger/PlaygroundLogger/LegacySupport
PlaygroundLogger/PlaygroundLogger
LegacyEntrypoints.swift
LoggerEntrypoints.swift
 45:68 (21%)
114:137 (18%)
 view
14 x 2 PlaygroundLogger/PlaygroundLogger/LegacySupport
PlaygroundLogger/PlaygroundLogger
LegacyEntrypoints.swift
LoggerEntrypoints.swift
 45:68 (21%)
28:51 (18%)
 view
13 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
TestCases.swift
LegacyPlaygroundLoggerTests.swift
 510:525 (2%)
518:533 (1%)
 view
Duplicated Units
The list of top 12 duplicated units.
See data for all 12 unit duplicates...
Size#FoldersFilesLinesCode
12 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 362:374 
1377:1389 
 view
12 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 531:543 
1541:1553 
 view
11 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
ExtensionUInt64.swift
LegacyPlaygroundLoggerTests.swift
 47:58 
882:893 
 view
27 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 517:546 
1527:1556 
 view
8 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 41:49 
1057:1065 
 view
8 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 165:173 
1181:1189 
 view
7 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
ExtensionString.swift
LegacyPlaygroundLoggerTests.swift
 74:81 
930:937 
 view
7 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderAPI.swift
LegacyPlaygroundLoggerTests.swift
 38:45 
1012:1019 
 view
7 x 3 PlaygroundLogger/Playgro...eRepresentations/AppKit
PlaygroundLogger/Playgro...resentations/Foundation
PlaygroundLogger/Playgro...ueRepresentations/UIKit
NSBezierPath+KeyedArchiveOpaqueRepres...
NSAttributedString+KeyedArchiveOpaque...
UIBezierPath+KeyedArchiveOpaqueRepres...
 22:29 
20:27 
22:29 
 view
6 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
BytesStorage.swift
LegacyPlaygroundLoggerTests.swift
 62:68 
758:764 
 view
6 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
LoggerDecoderImpl.swift
LegacyPlaygroundLoggerTests.swift
 597:603 
1607:1613 
 view
6 x 2 Legacy/PlaygroundLogger/PlaygroundLogger
PlaygroundLogger/PlaygroundLoggerTests
PlaygroundRepresentation.swift
LegacyPlaygroundLoggerTests.swift
 34:40 
786:792 
 view