mozilla / rust-code-analysis

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

30% duplication:

26,675 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
8,110 duplicated lines

2,975 duplicates

dependency graphs: 2D graph | 3D graph | 3D graph (with 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
tree-sitter-ccomment (56%) --> tree-sitter-preproc (17%)	1216	11 file pairs	details...
tree-sitter-mozcpp (44%) --> tree-sitter-mozjs (58%)	776	8 file pairs	details...
tree-sitter-ccomment (35%) --> tree-sitter-mozcpp (43%)	756	7 file pairs	details...
tree-sitter-ccomment (35%) --> tree-sitter-mozjs (56%)	756	7 file pairs	details...
tree-sitter-mozjs (56%) --> tree-sitter-preproc (10%)	756	7 file pairs	details...
tree-sitter-mozcpp (43%) --> tree-sitter-preproc (10%)	756	7 file pairs	details...

Open 2D force graph... Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 2,975 duplicates...

Size	#	Folders	Files	Lines	Code
201	x 2	tree-sitter-ccomment/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	parser.h parser.h	5:281 (100%) 5:281 (100%)	view
201	x 2	tree-sitter-ccomment/src/tree_sitter tree-sitter-mozjs/src/tree_sitter	parser.h parser.h	5:281 (100%) 5:281 (100%)	view
201	x 2	tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter	parser.h parser.h	5:281 (100%) 5:281 (100%)	view
201	x 2	tree-sitter-mozcpp/src/tree_sitter tree-sitter-mozjs/src/tree_sitter	parser.h parser.h	5:281 (100%) 5:281 (100%)	view
201	x 2	tree-sitter-mozjs/src/tree_sitter tree-sitter-preproc/src/tree_sitter	parser.h parser.h	5:281 (100%) 5:281 (100%)	view
201	x 2	tree-sitter-mozcpp/src/tree_sitter tree-sitter-preproc/src/tree_sitter	parser.h parser.h	5:281 (100%) 5:281 (100%)	view
128	x 2	src/languages src/languages	language_javascript.rs language_mozjs.rs	7:134 (23%) 7:134 (23%)	view
124	x 2	tree-sitter-ccomment/src/tree_sitter tree-sitter-mozjs/src/tree_sitter	array.h array.h	5:275 (100%) 5:275 (100%)	view
124	x 2	tree-sitter-mozcpp/src/tree_sitter tree-sitter-preproc/src/tree_sitter	array.h array.h	5:275 (100%) 5:275 (100%)	view
124	x 2	tree-sitter-ccomment/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	array.h array.h	5:275 (100%) 5:275 (100%)	view
124	x 2	tree-sitter-mozcpp/src/tree_sitter tree-sitter-mozjs/src/tree_sitter	array.h array.h	5:275 (100%) 5:275 (100%)	view
124	x 2	tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter	array.h array.h	5:275 (100%) 5:275 (100%)	view
124	x 2	tree-sitter-mozjs/src/tree_sitter tree-sitter-preproc/src/tree_sitter	array.h array.h	5:275 (100%) 5:275 (100%)	view
47	x 2	src/languages src/languages	language_tsx.rs language_typescript.rs	7:53 (5%) 7:53 (6%)	view
42	x 2	tree-sitter-ccomment/src tree-sitter-preproc/src	scanner.cc scanner.cc	5:77 (77%) 5:77 (77%)	view
34	x 2	src/metrics src/metrics	loc.rs loc.rs	2537:2575 (1%) 2578:2616 (1%)	view
33	x 2	src/metrics src/metrics	loc.rs loc.rs	1370:1406 (1%) 1519:1555 (1%)	view
32	x 2	src/metrics src/metrics	loc.rs loc.rs	2739:2774 (1%) 2850:2885 (1%)	view
31	x 2	src/metrics src/metrics	loc.rs loc.rs	1840:1875 (1%) 1961:1996 (1%)	view
30	x 2	src/metrics src/metrics	loc.rs loc.rs	3047:3080 (1%) 3089:3122 (1%)	view
30	x 2	src/metrics src/metrics	loc.rs loc.rs	2214:2247 (1%) 2253:2286 (1%)	view
30	x 2	src/metrics src/metrics	loc.rs loc.rs	2214:2247 (1%) 2292:2325 (1%)	view
30	x 2	src/metrics src/metrics	loc.rs loc.rs	2253:2286 (1%) 2292:2325 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	1881:1914 (1%) 2369:2401 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	1842:1875 (1%) 2893:2925 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	1226:1258 (1%) 1324:1356 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	1604:1636 (1%) 1644:1676 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	1802:1834 (1%) 2369:2401 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	1802:1834 (1%) 1881:1914 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	918:950 (1%) 1034:1066 (1%)	view
29	x 2	src/metrics src/metrics	loc.rs loc.rs	1963:1996 (1%) 2893:2925 (1%)	view
28	x 2	src/metrics src/metrics	loc.rs loc.rs	961:990 (<1%) 1034:1063 (<1%)	view
28	x 2	src/metrics src/metrics	loc.rs loc.rs	918:947 (<1%) 961:990 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2146:2175 (<1%) 2179:2208 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2817:2846 (<1%) 2929:2958 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2113:2142 (<1%) 2929:2958 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2113:2142 (<1%) 2817:2846 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2080:2109 (<1%) 2817:2846 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2080:2109 (<1%) 2929:2958 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2179:2208 (<1%) 2929:2958 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2146:2175 (<1%) 2817:2846 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2080:2109 (<1%) 2146:2175 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2080:2109 (<1%) 2113:2142 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2080:2109 (<1%) 2179:2208 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2113:2142 (<1%) 2146:2175 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2113:2142 (<1%) 2179:2208 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2146:2175 (<1%) 2929:2958 (<1%)	view
27	x 2	src/metrics src/metrics	loc.rs loc.rs	2179:2208 (<1%) 2817:2846 (<1%)	view
25	x 2	src/metrics src/metrics	loc.rs loc.rs	878:903 (<1%) 2113:2138 (<1%)	view
25	x 2	src/metrics src/metrics	loc.rs loc.rs	878:903 (<1%) 2146:2171 (<1%)	view

Duplicated Units

The list of top 8 duplicated units.

See data for all 8 unit duplicates...

Size	#	Folders	Files	Lines	Code
44	x 2	tree-sitter-ccomment/src tree-sitter-preproc/src	scanner.cc scanner.cc	15:72 15:72	view
31	x 4	tree-sitter-mozjs/src/tree_sitter tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	array.h array.h array.h array.h	220:254 220:254 220:254 220:254	view
21	x 2	tree-sitter-ccomment/bindings/rust tree-sitter-preproc/bindings/rust	build.rs build.rs	5:29 5:29	view
15	x 4	tree-sitter-mozjs/src/tree_sitter tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	parser.h parser.h parser.h parser.h	155:171 155:171 155:171 155:171	view
8	x 4	tree-sitter-mozjs/src/tree_sitter tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	array.h array.h array.h array.h	183:192 183:192 183:192 183:192	view
7	x 4	tree-sitter-mozjs/src/tree_sitter tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	array.h array.h array.h array.h	209:217 209:217 209:217 209:217	view
6	x 4	tree-sitter-mozjs/src/tree_sitter tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	array.h array.h array.h array.h	163:170 163:170 163:170 163:170	view
6	x 4	tree-sitter-mozjs/src/tree_sitter tree-sitter-ccomment/src/tree_sitter tree-sitter-preproc/src/tree_sitter tree-sitter-mozcpp/src/tree_sitter	array.h array.h array.h array.h	173:180 173:180 173:180 173:180	view