[eas4ai]

Summary

• Register go and golang
• Highlight comments, strings and raw strings, runes, numbers, keywords, built-in and declared types, constants, functions, operators, and punctuation
• Add focused tests and a benchmark fixture

This is a clean resubmission of the closed #222, based directly on main and independent of the Rust PR: no core changes and no visual test harness, only the language, its registration, tests, and the benchmark fixture.

Verification

• vendor/bin/php-cs-fixer fix --allow-risky=yes — no remaining changes
• vendor/bin/phpstan analyse src tests — no errors
• vendor/bin/phpunit — 854 tests, 1,113 assertions
• vendor/bin/phpbench run tests/Bench/HighlighterBench.php --variant='^go$' --report=aggregate — 115.26 μs (±0.66%)

Screenshot

[github-actions]

Benchmark Results

Comparison of add-go-highlighting against main (3d96482ee77208c8e445d4f68667918c7f440f62).

Open to see the benchmark results

benchmark	subject	set	revs	its	mem_peak	mode	rstdev
HighlighterBench	benchParse	apache	100	5	2.105mb +0.27%	39.514168μs -1.25%	±1.21% +162.74%
HighlighterBench	benchParse	bash	100	5	2.136mb +0.27%	113.990959μs +1.15%	±0.71% +6.16%
HighlighterBench	benchParse	bbcode	100	5	2.092mb +0.27%	40.910763μs -0.19%	±1.15% -30.22%
HighlighterBench	benchParse	blade	100	5	2.775mb +0.20%	572.203836μs +0.94%	±1.33% +47.93%
HighlighterBench	benchParse	css	100	5	2.123mb +0.27%	77.604442μs +1.18%	±0.73% -51.17%
HighlighterBench	benchParse	diff	100	5	2.127mb +0.27%	51.161096μs +1.47%	±0.87% +30.07%
HighlighterBench	benchParse	dockerfile	100	5	2.097mb +0.27%	49.316849μs -1.14%	±1.29% +23.60%
HighlighterBench	benchParse	dotenv	100	5	2.108mb +0.27%	42.745773μs +0.95%	±0.25% -65.54%
HighlighterBench	benchParse	gdscript	100	5	2.203mb +0.26%	185.577221μs +0.77%	±0.30% -80.78%
HighlighterBench	benchParse	go	100	5	ERR	81.897710μs +0.00%	±1.22% +0.00%
HighlighterBench	benchParse	graphql	100	5	2.123mb +0.27%	84.467378μs -0.50%	±1.41% -4.66%
HighlighterBench	benchParse	html	100	5	2.127mb +0.27%	64.124971μs +1.05%	±0.97% -51.90%
HighlighterBench	benchParse	http	100	5	2.096mb +0.27%	13.719863μs +0.89%	±0.66% -21.28%
HighlighterBench	benchParse	ini	100	5	2.112mb +0.27%	47.699315μs +0.23%	±1.28% +53.05%
HighlighterBench	benchParse	javascript	100	5	2.191mb +0.26%	148.780117μs -0.56%	±1.86% +244.70%
HighlighterBench	benchParse	json	100	5	2.166mb +0.26%	132.277710μs +0.65%	±1.16% +53.14%
HighlighterBench	benchParse	markdown	100	5	2.114mb +0.27%	42.180352μs +1.71%	±2.27% +354.66%
HighlighterBench	benchParse	nginx	100	5	2.178mb +0.26%	149.048356μs +2.22%	±0.54% -35.60%
HighlighterBench	benchParse	php	100	5	2.469mb +0.23%	385.218787μs +0.76%	±0.21% -37.91%
HighlighterBench	benchParse	python	100	5	2.367mb +0.24%	232.179785μs +2.11%	±0.30% -82.73%
HighlighterBench	benchParse	ruby	100	5	2.413mb +0.24%	131.887593μs +1.25%	±0.60% +16.69%
HighlighterBench	benchParse	scss	100	5	2.139mb +0.27%	102.723679μs +0.33%	±0.52% -11.32%
HighlighterBench	benchParse	sema	100	5	2.307mb +0.25%	118.651233μs +0.20%	±1.42% +153.65%
HighlighterBench	benchParse	sql	100	5	2.138mb +0.27%	89.181918μs +1.90%	±1.31% +53.61%
HighlighterBench	benchParse	svelte	100	5	2.412mb +0.24%	564.965479μs +1.38%	±1.36% +36.82%
HighlighterBench	benchParse	swift	100	5	2.185mb +0.26%	140.071272μs +3.07%	±0.77% -6.46%
HighlighterBench	benchParse	terminal	100	5	2.133mb +0.27%	102.810978μs +1.45%	±0.69% -14.88%
HighlighterBench	benchParse	terraform	100	5	2.138mb +0.27%	97.112857μs +1.57%	±0.55% -49.65%
HighlighterBench	benchParse	typescript	100	5	2.563mb +0.22%	136.825890μs +1.48%	±0.74% -40.09%
HighlighterBench	benchParse	txt	100	5	2.067mb +0.27%	4.922583μs -0.47%	±2.44% +73.17%
HighlighterBench	benchParse	twig	100	5	19.245mb +0.03%	840.199256μs -1.61%	±0.50% -67.22%
HighlighterBench	benchParse	vue	100	5	2.420mb +0.23%	214.670705μs +0.36%	±0.23% -60.24%
HighlighterBench	benchParse	xml	100	5	2.141mb +0.26%	98.475479μs -0.21%	±0.45% -75.25%
HighlighterBench	benchParse	yaml	100	5	2.199mb +0.26%	178.044247μs +1.28%	±0.36% -71.34%
HighlighterBench	benchParse	jsx	100	5	2.135mb +0.27%	29.014892μs +3.06%	±0.55% -65.40%
HighlighterBench	benchParse	tsx	100	5	2.219mb +0.26%	41.426047μs +2.09%	±1.16% +110.70%

_{Generated by phpbench against commit 94d0a6c}

[brendt]

Can you add attribute testing on the pattern classes themselves? Just look at any other language to know how it's done

[eas4ai]

Added #[PatternTest] attributes to all 8 Go pattern classes.

Verified locally: vendor/bin/phpunit — 871 tests, 1,130 assertions; PHPStan reports no errors.

[eas4ai]

Rebased onto current main to resolve the conflicts in src/Highlighter.php and tests/Bench/HighlighterBench.php after the recent language merges. The Go changes and pattern tests are unchanged apart from fitting the updated registration and benchmark lists.

Verified locally after the rebase: vendor/bin/phpunit — 1167 tests, 1683 assertions; PHPStan reports no errors. GitHub now reports this PR as mergeable with all checks passing.