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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:

39,126 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
1,954 duplicated lines

139 duplicates

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

Download: SVG DOT (open online Graphviz editor)

From Component --> To Component	Duplicated Lines	File Pairs	Details
packages/jsii-pacmak (<1%) --> packages/jsii (1%)	196	2 file pairs	details...
packages/jsii-pacmak (<1%) --> packages/jsii-reflect (3%)	94	2 file pairs	details...
packages/jsii-reflect (1%) --> packages/jsii (<1%)	54	1 file pair	details...

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Show more details on duplication between components...

Longest Duplicates

The list of 20 longest duplicates.

See data for all 139 duplicates...

Size	#	Folders	Files	Lines	Code
55	x 2	packages/jsii-pacmak/lib/targets/dotnet packages/jsii/lib	nameutils.ts reserved-words.ts	146:200 (36%) 38:92 (22%)	view
41	x 2	packages/jsii-pacmak/lib packages/jsii-reflect/lib	util.ts util.ts	14:94 (20%) 18:98 (89%)	view
29	x 2	packages/@jsii/java-runtime-test packages/@jsii/java-runtime	pom.xml.t.js pom.xml.t.js	62:92 (32%) 184:214 (15%)	view
17	x 2	packages/@jsii/go-runtime-test/build-tools packages/@jsii/go-runtime/build-tools	go-run.ts go-run.ts	7:31 (100%) 8:32 (100%)	view
17	x 2	packages/@jsii/python-ru.../jsii/_kernel/providers packages/@jsii/python-ru.../jsii/_kernel/providers	base.py process.py	18:34 (20%) 46:62 (6%)	view
16	x 2	packages/jsii-reflect/lib packages/jsii/lib	util.ts utils.ts	18:41 (34%) 175:198 (11%)	view
16	x 2	packages/jsii-pacmak/lib/targets/dotnet packages/jsii/lib	nameutils.ts reserved-words.ts	128:143 (10%) 20:35 (6%)	view
16	x 2	packages/jsii-pacmak/lib packages/jsii/lib	util.ts utils.ts	14:37 (7%) 175:198 (11%)	view
15	x 2	packages/jsii-reflect/lib packages/jsii-reflect/lib	callable.ts property.ts	54:82 (37%) 80:108 (33%)	view
15	x 2	packages/@jsii/java-runtime-test packages/@jsii/java-runtime	pom.xml.t.js pom.xml.t.js	49:65 (16%) 129:145 (7%)	view
14	x 2	packages/@jsii/dotnet-ru...on.JSII.Analyzers/tools packages/@jsii/dotnet-ru...on.JSII.Analyzers/tools	install.ps1 uninstall.ps1	24:38 (26%) 24:38 (23%)	view
13	x 2	packages/@jsii/dotnet-runtime packages/@jsii/java-runtime	JsiiRuntimeProvider.t.js BundledRuntime.t.js	34:54 (25%) 56:76 (20%)	view
13	x 2	packages/jsii-reflect/lib packages/jsii-reflect/lib	class.ts interface.ts	126:140 (14%) 94:108 (20%)	view
13	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets	python.ts python.ts	2591:2604 (<1%) 2608:2621 (<1%)	view
12	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets	dotnet.ts java.ts	29:44 (5%) 55:70 (<1%)	view
12	x 2	packages/jsii/lib packages/jsii/lib	assembler.ts assembler.ts	472:484 (<1%) 491:502 (<1%)	view
11	x 2	packages/@jsii/kernel/lib packages/@jsii/kernel/lib	serialization.ts serialization.ts	175:187 (1%) 202:215 (1%)	view
11	x 2	packages/jsii-pacmak/lib/targets/go/types packages/jsii-pacmak/lib/targets/go/types	class.ts interface.ts	131:142 (4%) 127:138 (6%)	view
11	x 2	packages/jsii/lib packages/jsii/lib	validator.ts validator.ts	286:297 (1%) 317:328 (1%)	view
11	x 2	packages/@jsii/kernel/lib packages/@jsii/kernel/lib	serialization.ts serialization.ts	311:327 (1%) 329:345 (1%)	view

Duplicated Units

The list of top 20 duplicated units.

See data for all 21 unit duplicates...

Size	#	Folders	Files	Lines	Code
19	x 2	packages/jsii-calc/lib packages/jsii-calc/lib	compliance.ts compliance.ts	2263:2282 2284:2303	view
17	x 3	packages/jsii-reflect/lib packages/jsii/lib packages/jsii-pacmak/lib	util.ts utils.ts util.ts	18:42 175:199 14:38	view
17	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets/dotnet	java.ts dotnettyperesolver.ts	2586:2603 168:185	view
14	x 2	packages/@jsii/kernel/lib packages/@jsii/kernel/lib	serialization.ts serialization.ts	310:327 328:345	view
14	x 2	packages/jsii-reflect/lib packages/jsii-pacmak/lib	util.ts util.ts	83:100 79:96	view
11	x 3	packages/jsii-reflect/lib packages/jsii/lib packages/jsii-pacmak/lib	util.ts utils.ts util.ts	62:73 207:218 58:69	view
9	x 2	packages/@jsii/runtime packages/@jsii/check-node	jest.config.ts jest.config.ts	3:13 3:13	view
8	x 2	packages/@jsii/dotnet-ru...c/Amazon.JSII.Analyzers packages/@jsii/dotnet-ru...c/Amazon.JSII.Analyzers	JsiiOptionalAnalyzer.cs JsiiOptionalAnalyzer.cs	113:121 131:139	view
7	x 2	packages/@jsii/python-runtime/src/jsii packages/@jsii/python-runtime/src/jsii	_reference_map.py _reference_map.py	0:0 0:0	view
7	x 2	packages/jsii-reflect/lib packages/jsii-reflect/lib	property.ts callable.ts	88:95 62:69	view
7	x 2	packages/jsii-reflect/lib packages/jsii-pacmak/lib/targets/go	type-system.ts util.ts	345:352 38:45	view
6	x 2	packages/@jsii/kernel/lib packages/jsii-diff/lib	serialization.ts util.ts	847:853 99:105	view
6	x 2	packages/jsii-rosetta/lib/languages packages/jsii-rosetta/lib/languages	java.ts csharp.ts	436:442 514:520	view
6	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets/dotnet	java.ts dotnetgenerator.ts	733:739 452:458	view
6	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets/dotnet	java.ts dotnetgenerator.ts	744:750 460:466	view
6	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets/dotnet	java.ts dotnetgenerator.ts	756:762 428:434	view
6	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets/dotnet	java.ts dotnetgenerator.ts	884:890 227:233	view
6	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets/dotnet	java.ts dotnetgenerator.ts	2305:2311 1050:1056	view
6	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets	js.ts js.ts	112:118 122:128	view
6	x 2	packages/jsii-pacmak/lib/targets packages/jsii-pacmak/lib/targets	python.ts python.ts	2743:2749 2751:2757	view