mozilla / pdf.js - Duplication

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

12% duplication:

151,541 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
18,477 duplicated lines

18,877 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
src (<1%) --> web (<1%)	231	2 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 18,877 duplicates...

Size	#	Folders	Files	Lines	Code
316	x 2	src/core src/core	metrics.js metrics.js	28:343 (10%) 982:1297 (10%)	view
316	x 2	src/core src/core	metrics.js metrics.js	346:661 (10%) 664:979 (10%)	view
246	x 2	l10n/en-CA l10n/en-GB	viewer.ftl viewer.ftl	331:610 (45%) 336:615 (44%)	view
194	x 2	l10n/en-CA l10n/en-GB	viewer.ftl viewer.ftl	111:330 (35%) 111:330 (35%)	view
136	x 2	l10n/en-CA l10n/en-US	viewer.ftl viewer.ftl	442:595 (25%) 442:614 (26%)	view
136	x 2	l10n/en-GB l10n/en-US	viewer.ftl viewer.ftl	447:600 (24%) 442:614 (26%)	view
123	x 2	l10n/en-CA l10n/en-US	viewer.ftl viewer.ftl	136:278 (22%) 136:285 (23%)	view
123	x 2	l10n/en-GB l10n/en-US	viewer.ftl viewer.ftl	136:278 (22%) 136:285 (23%)	view
107	x 2	l10n/en-CA l10n/en-US	viewer.ftl viewer.ftl	1:114 (19%) 1:123 (20%)	view
64	x 2	l10n/en-CA l10n/en-GB	viewer.ftl viewer.ftl	1:69 (11%) 1:69 (11%)	view
64	x 2	l10n/en-GB l10n/en-US	viewer.ftl viewer.ftl	1:69 (11%) 1:76 (12%)	view
55	x 2	web web	viewer-geckoview.css viewer.css	219:282 (20%) 833:898 (4%)	view
53	x 2	l10n/en-GB l10n/en-US	viewer.ftl viewer.ftl	293:354 (9%) 297:360 (10%)	view
53	x 2	src web	pdf.js pdfjs.js	151:203 (33%) 70:122 (50%)	view
52	x 2	src src	pdf.js pdf.js	98:149 (33%) 152:203 (33%)	view
52	x 2	src web	pdf.js pdfjs.js	98:149 (33%) 71:122 (49%)	view
51	x 2	src web	pdf.js pdfjs.js	98:148 (32%) 17:67 (48%)	view
51	x 2	src web	pdf.js pdfjs.js	152:202 (32%) 17:67 (48%)	view
51	x 2	web web	pdfjs.js pdfjs.js	17:67 (48%) 71:121 (48%)	view
50	x 2	src/core/xfa src/core/xfa	template.js template.js	1827:1876 (1%) 2660:2709 (1%)	view
50	x 2	l10n/es-CL l10n/es-MX	viewer.ftl viewer.ftl	36:87 (9%) 36:87 (9%)	view
48	x 2	src/core src/core	liberationsans_widths.js liberationsans_widths.js	68:115 (12%) 371:418 (12%)	view
48	x 2	src/core src/core	liberationsans_widths.js liberationsans_widths.js	68:115 (12%) 270:317 (12%)	view
48	x 2	src/core src/core	liberationsans_widths.js liberationsans_widths.js	68:115 (12%) 169:216 (12%)	view
48	x 2	src/core src/core	liberationsans_widths.js liberationsans_widths.js	270:317 (12%) 371:418 (12%)	view
48	x 2	src/core src/core	liberationsans_widths.js liberationsans_widths.js	169:216 (12%) 371:418 (12%)	view
48	x 2	src/core src/core	liberationsans_widths.js liberationsans_widths.js	169:216 (12%) 270:317 (12%)	view
47	x 2	web web	viewer-geckoview.css viewer.css	282:340 (17%) 1360:1422 (3%)	view
43	x 2	l10n/bo l10n/en-GB	viewer.ftl viewer.ftl	106:156 (18%) 132:182 (7%)	view
43	x 2	l10n/es-ES l10n/es-MX	viewer.ftl viewer.ftl	422:470 (7%) 402:450 (8%)	view
43	x 2	l10n/bo l10n/en-CA	viewer.ftl viewer.ftl	106:156 (18%) 132:182 (7%)	view
39	x 2	l10n/bo l10n/en-US	viewer.ftl viewer.ftl	110:156 (16%) 136:184 (7%)	view
36	x 2	l10n/en-GB l10n/en-US	viewer.ftl viewer.ftl	72:109 (6%) 79:117 (6%)	view
36	x 2	l10n/en-CA l10n/en-GB	viewer.ftl viewer.ftl	72:109 (6%) 72:109 (6%)	view
34	x 2	l10n/es-CL l10n/es-ES	viewer.ftl viewer.ftl	328:365 (6%) 328:365 (6%)	view
34	x 2	l10n/pt-BR l10n/pt-PT	viewer.ftl viewer.ftl	328:365 (6%) 328:365 (6%)	view
33	x 2	l10n/es-CL l10n/es-ES	viewer.ftl viewer.ftl	483:517 (6%) 483:517 (6%)	view
33	x 2	l10n/en-CA l10n/en-US	viewer.ftl viewer.ftl	293:330 (6%) 297:334 (6%)	view
33	x 2	src/core/xfa src/core/xfa	template.js template.js	2301:2333 (<1%) 2653:2685 (<1%)	view
32	x 2	l10n/es-ES l10n/es-MX	viewer.ftl viewer.ftl	33:66 (5%) 33:66 (6%)	view
31	x 2	src/core/xfa src/core/xfa	template.js template.js	1696:1734 (<1%) 3846:3882 (<1%)	view
30	x 2	l10n/es-CL l10n/es-ES	viewer.ftl viewer.ftl	107:136 (5%) 107:136 (5%)	view
30	x 2	l10n/es-AR l10n/es-ES	viewer.ftl viewer.ftl	107:136 (5%) 107:136 (5%)	view
30	x 2	l10n/es-AR l10n/es-CL	viewer.ftl viewer.ftl	107:136 (5%) 107:136 (5%)	view
30	x 2	l10n/es-CL l10n/es-MX	viewer.ftl viewer.ftl	186:219 (5%) 186:219 (5%)	view
29	x 2	l10n/es-CL l10n/es-ES	viewer.ftl viewer.ftl	439:472 (5%) 439:472 (5%)	view
29	x 2	l10n/es-CL l10n/es-ES	viewer.ftl viewer.ftl	36:66 (5%) 36:66 (5%)	view
28	x 2	l10n/es-ES l10n/es-MX	viewer.ftl viewer.ftl	1:31 (5%) 1:31 (5%)	view
27	x 2	l10n/es-CL l10n/es-MX	viewer.ftl viewer.ftl	439:470 (4%) 419:450 (5%)	view
26	x 2	src/core/xfa src/core/xfa	template.js template.js	1827:1852 (<1%) 2308:2333 (<1%)	view

Duplicated Units

The list of top 3 duplicated units.

See data for all 3 unit duplicates...

Size	#	Folders	Files	Lines	Code
10	x 2	src/core src/core	cmap.js to_unicode_map.js	301:314 43:56	view
7	x 2	src/core src/core	image_resizer.js jpeg_stream.js	46:54 37:45	view
6	x 2	src/core src/core	annotation.js evaluator.js	3437:3445 4629:4637	view