fix(es/minifier): Abort sequential inliner on optional chaining (#6637)

**Related issue:** - Closes #6636.
swc-project · Dec 14, 2022 · e4e4d6c · e4e4d6c · github-actions · Dec 14, 2022
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commit e4e4d6c
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diff --git a/crates/swc_ecma_minifier/src/compress/optimize/sequences.rs b/crates/swc_ecma_minifier/src/compress/optimize/sequences.rs
@@ -1546,7 +1546,9 @@ where
         }
 
         match b {
-            Expr::Update(..) | Expr::Arrow(..) | Expr::Fn(..) => return Ok(false),
+            Expr::Update(..) | Expr::Arrow(..) | Expr::Fn(..) | Expr::OptChain(..) => {
+                return Ok(false)
+            }
 
             Expr::Cond(b) => {
                 trace_op!("seq: Try test of cond");

diff --git a/crates/swc_ecma_minifier/tests/fixture/issues/6636/config.json b/crates/swc_ecma_minifier/tests/fixture/issues/6636/config.json
@@ -0,0 +1,7 @@
+{
+    "passes": 2,
+    "toplevel": true,
+    "defaults": true,
+    "sequences": true,
+    "collapse_vars": true
+}
diff --git a/crates/swc_ecma_minifier/tests/fixture/issues/6636/input.js b/crates/swc_ecma_minifier/tests/fixture/issues/6636/input.js
@@ -0,0 +1,8 @@
+export function memo(fn, opts) {
+  let result;
+  return () => {
+    result = fn(...newDeps);
+    opts?.onChange?.(result);
+    return result;
+  };
+}
diff --git a/crates/swc_ecma_minifier/tests/fixture/issues/6636/output.js b/crates/swc_ecma_minifier/tests/fixture/issues/6636/output.js
@@ -0,0 +1,4 @@
+export function memo(fn, opts) {
+    let result;
+    return ()=>(result = fn(...newDeps), opts?.onChange?.(result), result);
+}
Benchmark suite	Current: `e4e4d6c`	Previous: `be5ea7f`	Ratio
`es/full/bugs-1`	`299433` ns/iter (`± 18704`)	`305180` ns/iter (`± 8562`)	`0.98`
`es/full/minify/libraries/antd`	`1626232816` ns/iter (`± 15620583`)	`1821727644` ns/iter (`± 12673173`)	`0.89`
`es/full/minify/libraries/d3`	`333611911` ns/iter (`± 5536587`)	`351660191` ns/iter (`± 5768160`)	`0.95`
`es/full/minify/libraries/echarts`	`1405835474` ns/iter (`± 14542912`)	`1545893761` ns/iter (`± 15978758`)	`0.91`
`es/full/minify/libraries/jquery`	`92221038` ns/iter (`± 967960`)	`96743209` ns/iter (`± 819669`)	`0.95`
`es/full/minify/libraries/lodash`	`110616947` ns/iter (`± 1757873`)	`116157166` ns/iter (`± 1797017`)	`0.95`
`es/full/minify/libraries/moment`	`53278394` ns/iter (`± 690598`)	`56330212` ns/iter (`± 524342`)	`0.95`
`es/full/minify/libraries/react`	`19743294` ns/iter (`± 335990`)	`20779444` ns/iter (`± 269910`)	`0.95`
`es/full/minify/libraries/terser`	`256926888` ns/iter (`± 3093971`)	`287685880` ns/iter (`± 7139778`)	`0.89`
`es/full/minify/libraries/three`	`471768023` ns/iter (`± 6628468`)	`545341462` ns/iter (`± 9935480`)	`0.87`
`es/full/minify/libraries/typescript`	`3070819297` ns/iter (`± 24547972`)	`3476360428` ns/iter (`± 23573410`)	`0.88`
`es/full/minify/libraries/victory`	`675538048` ns/iter (`± 8534132`)	`807338179` ns/iter (`± 15556870`)	`0.84`
`es/full/minify/libraries/vue`	`135247028` ns/iter (`± 1946211`)	`145229267` ns/iter (`± 3185360`)	`0.93`
`es/full/codegen/es3`	`28457` ns/iter (`± 104`)	`27950` ns/iter (`± 70`)	`1.02`
`es/full/codegen/es5`	`28446` ns/iter (`± 39`)	`27995` ns/iter (`± 56`)	`1.02`
`es/full/codegen/es2015`	`28450` ns/iter (`± 68`)	`27961` ns/iter (`± 42`)	`1.02`
`es/full/codegen/es2016`	`28420` ns/iter (`± 71`)	`27947` ns/iter (`± 50`)	`1.02`
`es/full/codegen/es2017`	`28480` ns/iter (`± 83`)	`27955` ns/iter (`± 93`)	`1.02`
`es/full/codegen/es2018`	`28540` ns/iter (`± 45`)	`27946` ns/iter (`± 53`)	`1.02`
`es/full/codegen/es2019`	`28456` ns/iter (`± 44`)	`27953` ns/iter (`± 32`)	`1.02`
`es/full/codegen/es2020`	`28490` ns/iter (`± 87`)	`27953` ns/iter (`± 51`)	`1.02`
`es/full/all/es3`	`167756246` ns/iter (`± 3366952`)	`171510483` ns/iter (`± 1528953`)	`0.98`
`es/full/all/es5`	`160496324` ns/iter (`± 3280817`)	`165261229` ns/iter (`± 1809579`)	`0.97`
`es/full/all/es2015`	`120257407` ns/iter (`± 919529`)	`122017717` ns/iter (`± 1706313`)	`0.99`
`es/full/all/es2016`	`122167821` ns/iter (`± 1832109`)	`121910969` ns/iter (`± 1635779`)	`1.00`
`es/full/all/es2017`	`119360856` ns/iter (`± 1141148`)	`120955127` ns/iter (`± 808261`)	`0.99`
`es/full/all/es2018`	`118101182` ns/iter (`± 1654961`)	`119899035` ns/iter (`± 1333914`)	`0.99`
`es/full/all/es2019`	`117329299` ns/iter (`± 891268`)	`117969844` ns/iter (`± 1411067`)	`0.99`
`es/full/all/es2020`	`113327928` ns/iter (`± 1787787`)	`114273813` ns/iter (`± 1861377`)	`0.99`
`es/full/parser`	`510695` ns/iter (`± 7136`)	`521632` ns/iter (`± 8513`)	`0.98`
`es/full/base/fixer`	`22076` ns/iter (`± 34`)	`22029` ns/iter (`± 78`)	`1.00`
`es/full/base/resolver_and_hygiene`	`77771` ns/iter (`± 97`)	`77985` ns/iter (`± 91`)	`1.00`
`serialization of ast node`	`161` ns/iter (`± 0`)	`142` ns/iter (`± 0`)	`1.13`
`serialization of serde`	`126` ns/iter (`± 0`)	`127` ns/iter (`± 0`)	`0.99`
`css/minify/libraries/bootstrap`	`27053336` ns/iter (`± 64260`)	`28467119` ns/iter (`± 267891`)	`0.95`
`css/visitor/compare/clone`	`2115201` ns/iter (`± 8857`)	`2115270` ns/iter (`± 11946`)	`1.00`
`css/visitor/compare/visit_mut_span`	`2308505` ns/iter (`± 6436`)	`2329817` ns/iter (`± 19132`)	`0.99`
`css/visitor/compare/visit_mut_span_panic`	`2343089` ns/iter (`± 7483`)	`2346966` ns/iter (`± 10133`)	`1.00`
`css/visitor/compare/fold_span`	`3023430` ns/iter (`± 27152`)	`3040387` ns/iter (`± 32638`)	`0.99`
`css/visitor/compare/fold_span_panic`	`3139339` ns/iter (`± 27395`)	`3152494` ns/iter (`± 21674`)	`1.00`
`css/lexer/bootstrap_5_1_3`	`5195039` ns/iter (`± 5260`)	`5196663` ns/iter (`± 11221`)	`1.00`
`css/lexer/foundation_6_7_4`	`4401551` ns/iter (`± 4586`)	`4451595` ns/iter (`± 2072`)	`0.99`
`css/lexer/tailwind_3_1_1`	`826341` ns/iter (`± 542`)	`834809` ns/iter (`± 749`)	`0.99`
`css/parser/bootstrap_5_1_3`	`20657876` ns/iter (`± 46703`)	`21010217` ns/iter (`± 98606`)	`0.98`
`css/parser/foundation_6_7_4`	`16560747` ns/iter (`± 101193`)	`16838495` ns/iter (`± 97222`)	`0.98`
`css/parser/tailwind_3_1_1`	`3186149` ns/iter (`± 2285`)	`3181769` ns/iter (`± 3430`)	`1.00`
`es/codegen/colors`	`326618` ns/iter (`± 182990`)	`322493` ns/iter (`± 180703`)	`1.01`
`es/codegen/large`	`1240883` ns/iter (`± 627669`)	`1236856` ns/iter (`± 643500`)	`1.00`
`es/codegen/with-parser/colors`	`45473` ns/iter (`± 435`)	`45559` ns/iter (`± 110`)	`1.00`
`es/codegen/with-parser/large`	`513692` ns/iter (`± 2248`)	`515044` ns/iter (`± 1925`)	`1.00`
`es/minify/libraries/antd`	`1418475939` ns/iter (`± 9416368`)	`1568584216` ns/iter (`± 19363812`)	`0.90`
`es/minify/libraries/d3`	`287448463` ns/iter (`± 5727087`)	`295949459` ns/iter (`± 5927991`)	`0.97`
`es/minify/libraries/echarts`	`1211713336` ns/iter (`± 15291257`)	`1287150182` ns/iter (`± 10634515`)	`0.94`
`es/minify/libraries/jquery`	`79669683` ns/iter (`± 1150208`)	`80992645` ns/iter (`± 1565303`)	`0.98`
`es/minify/libraries/lodash`	`97599042` ns/iter (`± 785136`)	`99878726` ns/iter (`± 1767122`)	`0.98`
`es/minify/libraries/moment`	`46291122` ns/iter (`± 405462`)	`46765452` ns/iter (`± 570470`)	`0.99`
`es/minify/libraries/react`	`17449239` ns/iter (`± 271709`)	`17766031` ns/iter (`± 277651`)	`0.98`
`es/minify/libraries/terser`	`218835906` ns/iter (`± 2262928`)	`226771050` ns/iter (`± 5669871`)	`0.97`
`es/minify/libraries/three`	`388569218` ns/iter (`± 5867866`)	`425116357` ns/iter (`± 10360983`)	`0.91`
`es/minify/libraries/typescript`	`2654368341` ns/iter (`± 12815825`)	`2911120660` ns/iter (`± 36184541`)	`0.91`
`es/minify/libraries/victory`	`574555195` ns/iter (`± 12623719`)	`616969001` ns/iter (`± 11884979`)	`0.93`
`es/minify/libraries/vue`	`119376583` ns/iter (`± 2282741`)	`120878183` ns/iter (`± 1306192`)	`0.99`
`es/visitor/compare/clone`	`2421477` ns/iter (`± 30440`)	`2415878` ns/iter (`± 14787`)	`1.00`
`es/visitor/compare/visit_mut_span`	`2829008` ns/iter (`± 15440`)	`2782845` ns/iter (`± 7919`)	`1.02`
`es/visitor/compare/visit_mut_span_panic`	`2871575` ns/iter (`± 9397`)	`2855521` ns/iter (`± 2441`)	`1.01`
`es/visitor/compare/fold_span`	`3982781` ns/iter (`± 47724`)	`3942633` ns/iter (`± 10578`)	`1.01`
`es/visitor/compare/fold_span_panic`	`4099937` ns/iter (`± 7792`)	`4090972` ns/iter (`± 44564`)	`1.00`
`es/lexer/colors`	`17364` ns/iter (`± 24`)	`17559` ns/iter (`± 17`)	`0.99`
`es/lexer/angular`	`8242480` ns/iter (`± 6566`)	`8242797` ns/iter (`± 3638`)	`1.00`
`es/lexer/backbone`	`1077334` ns/iter (`± 1444`)	`1075689` ns/iter (`± 435`)	`1.00`
`es/lexer/jquery`	`5972973` ns/iter (`± 11405`)	`5962106` ns/iter (`± 20407`)	`1.00`
`es/lexer/jquery mobile`	`9208351` ns/iter (`± 8175`)	`9184496` ns/iter (`± 5087`)	`1.00`
`es/lexer/mootools`	`4684491` ns/iter (`± 2813`)	`4682830` ns/iter (`± 2194`)	`1.00`
`es/lexer/underscore`	`896995` ns/iter (`± 1572`)	`897714` ns/iter (`± 374`)	`1.00`
`es/lexer/three`	`27982188` ns/iter (`± 38175`)	`27993630` ns/iter (`± 42112`)	`1.00`
`es/lexer/yui`	`5053541` ns/iter (`± 1453`)	`5063631` ns/iter (`± 1920`)	`1.00`
`es/parser/colors`	`30954` ns/iter (`± 175`)	`31275` ns/iter (`± 179`)	`0.99`
`es/parser/angular`	`16116953` ns/iter (`± 144473`)	`16523626` ns/iter (`± 216865`)	`0.98`
`es/parser/backbone`	`2330480` ns/iter (`± 10874`)	`2348448` ns/iter (`± 13297`)	`0.99`
`es/parser/jquery`	`12835828` ns/iter (`± 157933`)	`12903045` ns/iter (`± 112459`)	`0.99`
`es/parser/jquery mobile`	`20355035` ns/iter (`± 299088`)	`21493787` ns/iter (`± 576045`)	`0.95`
`es/parser/mootools`	`9637606` ns/iter (`± 73482`)	`9929643` ns/iter (`± 100876`)	`0.97`
`es/parser/underscore`	`1979843` ns/iter (`± 10585`)	`1988138` ns/iter (`± 11732`)	`1.00`
`es/parser/three`	`59081327` ns/iter (`± 412221`)	`62020623` ns/iter (`± 253790`)	`0.95`
`es/parser/yui`	`9750696` ns/iter (`± 92096`)	`9839479` ns/iter (`± 91459`)	`0.99`
`es/preset-env/usage/builtin_type`	`143844` ns/iter (`± 33506`)	`139730` ns/iter (`± 31062`)	`1.03`
`es/preset-env/usage/property`	`21394` ns/iter (`± 108`)	`21394` ns/iter (`± 74`)	`1`
`es/resolver/typescript`	`110286926` ns/iter (`± 1639109`)	`121319696` ns/iter (`± 2564322`)	`0.91`
`es/fixer/typescript`	`86708097` ns/iter (`± 1118326`)	`96045068` ns/iter (`± 1321318`)	`0.90`
`es/hygiene/typescript`	`169138590` ns/iter (`± 2426743`)	`197160509` ns/iter (`± 1463961`)	`0.86`
`es/resolver_with_hygiene/typescript`	`299457886` ns/iter (`± 4037017`)	`335480084` ns/iter (`± 3687895`)	`0.89`
`es/visitor/base-perf/module_clone`	`74168` ns/iter (`± 640`)	`74837` ns/iter (`± 1378`)	`0.99`
`es/visitor/base-perf/fold_empty`	`85938` ns/iter (`± 1881`)	`87906` ns/iter (`± 1519`)	`0.98`
`es/visitor/base-perf/fold_noop_impl_all`	`85940` ns/iter (`± 928`)	`86983` ns/iter (`± 1224`)	`0.99`
`es/visitor/base-perf/fold_noop_impl_vec`	`86324` ns/iter (`± 1225`)	`88044` ns/iter (`± 1271`)	`0.98`
`es/visitor/base-perf/boxing_boxed_clone`	`56` ns/iter (`± 0`)	`56` ns/iter (`± 0`)	`1`
`es/visitor/base-perf/boxing_unboxed_clone`	`58` ns/iter (`± 0`)	`58` ns/iter (`± 0`)	`1`
`es/visitor/base-perf/boxing_boxed`	`103` ns/iter (`± 0`)	`103` ns/iter (`± 0`)	`1`
`es/visitor/base-perf/boxing_unboxed`	`102` ns/iter (`± 0`)	`101` ns/iter (`± 0`)	`1.01`
`es/visitor/base-perf/visit_contains_this`	`3552` ns/iter (`± 46`)	`3405` ns/iter (`± 52`)	`1.04`
`es/base/parallel/resolver/typescript`	`5328541224` ns/iter (`± 428587174`)	`5648087437` ns/iter (`± 360556699`)	`0.94`
`es/base/parallel/hygiene/typescript`	`1986643377` ns/iter (`± 27521604`)	`2297920286` ns/iter (`± 39827223`)	`0.86`
`misc/visitors/time-complexity/time 5`	`102` ns/iter (`± 0`)	`107` ns/iter (`± 0`)	`0.95`
`misc/visitors/time-complexity/time 10`	`344` ns/iter (`± 2`)	`327` ns/iter (`± 0`)	`1.05`
`misc/visitors/time-complexity/time 15`	`672` ns/iter (`± 0`)	`667` ns/iter (`± 0`)	`1.01`
`misc/visitors/time-complexity/time 20`	`1218` ns/iter (`± 1`)	`1227` ns/iter (`± 0`)	`0.99`
`misc/visitors/time-complexity/time 40`	`6652` ns/iter (`± 27`)	`6208` ns/iter (`± 1`)	`1.07`
`misc/visitors/time-complexity/time 60`	`17028` ns/iter (`± 25`)	`15641` ns/iter (`± 22`)	`1.09`
`es/full-target/es2016`	`188176` ns/iter (`± 629`)	`187053` ns/iter (`± 517`)	`1.01`
`es/full-target/es2017`	`181526` ns/iter (`± 742`)	`181438` ns/iter (`± 540`)	`1.00`
`es/full-target/es2018`	`170870` ns/iter (`± 717`)	`169778` ns/iter (`± 298`)	`1.01`
`es2020_nullish_coalescing`	`65597` ns/iter (`± 155`)	`66073` ns/iter (`± 55`)	`0.99`
`es2020_optional_chaining`	`95376` ns/iter (`± 8791`)	`94674` ns/iter (`± 6929`)	`1.01`
`es2022_class_properties`	`92970` ns/iter (`± 157`)	`91736` ns/iter (`± 186`)	`1.01`
`es2018_object_rest_spread`	`70345` ns/iter (`± 178`)	`70697` ns/iter (`± 122`)	`1.00`
`es2019_optional_catch_binding`	`60238` ns/iter (`± 117`)	`60391` ns/iter (`± 85`)	`1.00`
`es2017_async_to_generator`	`60809` ns/iter (`± 66`)	`60930` ns/iter (`± 110`)	`1.00`
`es2016_exponentiation`	`64096` ns/iter (`± 137`)	`64044` ns/iter (`± 115`)	`1.00`
`es2015_arrow`	`68934` ns/iter (`± 227`)	`69032` ns/iter (`± 190`)	`1.00`
`es2015_block_scoped_fn`	`64714` ns/iter (`± 236`)	`65171` ns/iter (`± 143`)	`0.99`
`es2015_block_scoping`	`137355` ns/iter (`± 6956`)	`146341` ns/iter (`± 9246`)	`0.94`
`es2015_classes`	`115287` ns/iter (`± 515`)	`116197` ns/iter (`± 542`)	`0.99`
`es2015_computed_props`	`59772` ns/iter (`± 122`)	`60200` ns/iter (`± 119`)	`0.99`
`es2015_destructuring`	`113999` ns/iter (`± 359`)	`114945` ns/iter (`± 1306`)	`0.99`
`es2015_duplicate_keys`	`62537` ns/iter (`± 61`)	`63450` ns/iter (`± 86`)	`0.99`
`es2015_parameters`	`77918` ns/iter (`± 202`)	`78569` ns/iter (`± 113`)	`0.99`
`es2015_fn_name`	`65365` ns/iter (`± 469`)	`66221` ns/iter (`± 603`)	`0.99`
`es2015_for_of`	`62950` ns/iter (`± 71`)	`63417` ns/iter (`± 88`)	`0.99`
`es2015_instanceof`	`61950` ns/iter (`± 58`)	`62190` ns/iter (`± 90`)	`1.00`
`es2015_shorthand_property`	`59819` ns/iter (`± 77`)	`60418` ns/iter (`± 106`)	`0.99`
`es2015_spread`	`59858` ns/iter (`± 84`)	`60116` ns/iter (`± 160`)	`1.00`
`es2015_sticky_regex`	`59852` ns/iter (`± 695`)	`61974` ns/iter (`± 123`)	`0.97`
`es2015_typeof_symbol`	`59929` ns/iter (`± 88`)	`61559` ns/iter (`± 78`)	`0.97`
`es/transform/baseline/base`	`49697` ns/iter (`± 117`)	`50975` ns/iter (`± 93`)	`0.97`
`es/transform/baseline/common_reserved_word`	`60292` ns/iter (`± 98`)	`61702` ns/iter (`± 46`)	`0.98`
`es/transform/baseline/common_typescript`	`141233` ns/iter (`± 3139`)	`145827` ns/iter (`± 4597`)	`0.97`
`es/target/es3`	`164391` ns/iter (`± 105`)	`168360` ns/iter (`± 216`)	`0.98`
`es/target/es2015`	`598561` ns/iter (`± 503`)	`632775` ns/iter (`± 1460`)	`0.95`
`es/target/es2016`	`62529` ns/iter (`± 45`)	`64146` ns/iter (`± 154`)	`0.97`
`es/target/es2017`	`59428` ns/iter (`± 140`)	`61024` ns/iter (`± 109`)	`0.97`
`es/target/es2018`	`78593` ns/iter (`± 119`)	`80915` ns/iter (`± 114`)	`0.97`
`es/target/es2020`	`127546` ns/iter (`± 162`)	`130871` ns/iter (`± 152`)	`0.97`
`babelify-only`	`669406` ns/iter (`± 614`)	`665932` ns/iter (`± 1024`)	`1.01`
`parse_and_babelify_angular`	`42550439` ns/iter (`± 696545`)	`42843094` ns/iter (`± 876793`)	`0.99`
`parse_and_babelify_backbone`	`5452056` ns/iter (`± 79406`)	`5544731` ns/iter (`± 69491`)	`0.98`
`parse_and_babelify_jquery`	`31776033` ns/iter (`± 579495`)	`33754337` ns/iter (`± 468431`)	`0.94`
`parse_and_babelify_jquery_mobile`	`55678555` ns/iter (`± 986857`)	`58708733` ns/iter (`± 1073545`)	`0.95`
`parse_and_babelify_mootools`	`33354360` ns/iter (`± 499484`)	`35910700` ns/iter (`± 579655`)	`0.93`
`parse_and_babelify_underscore`	`4352357` ns/iter (`± 43580`)	`4452958` ns/iter (`± 62616`)	`0.98`
`parse_and_babelify_yui`	`32860112` ns/iter (`± 448389`)	`34918317` ns/iter (`± 471959`)	`0.94`
`html/minify/document/css_spec`	`42051354` ns/iter (`± 282472`)	`42955590` ns/iter (`± 541963`)	`0.98`
`html/minify/document/github`	`17450089` ns/iter (`± 44176`)	`17567934` ns/iter (`± 118183`)	`0.99`
`html/minify/document/stackoverflow`	`15674955` ns/iter (`± 77683`)	`15603598` ns/iter (`± 80527`)	`1.00`
`html/minify/document_fragment/css_spec`	`40382348` ns/iter (`± 216792`)	`41855455` ns/iter (`± 273474`)	`0.96`
`html/minify/document_fragment/github`	`16721735` ns/iter (`± 26060`)	`16818981` ns/iter (`± 62087`)	`0.99`
`html/minify/document_fragment/stackoverflow`	`15151818` ns/iter (`± 46354`)	`15452872` ns/iter (`± 110586`)	`0.98`
`html/document/visitor/compare/clone`	`345897` ns/iter (`± 1638`)	`338374` ns/iter (`± 1682`)	`1.02`
`html/document/visitor/compare/visit_mut_span`	`369942` ns/iter (`± 2910`)	`365172` ns/iter (`± 1187`)	`1.01`
`html/document/visitor/compare/visit_mut_span_panic`	`375657` ns/iter (`± 1719`)	`375534` ns/iter (`± 1543`)	`1.00`
`html/document/visitor/compare/fold_span`	`409177` ns/iter (`± 1411`)	`406947` ns/iter (`± 1634`)	`1.01`
`html/document/visitor/compare/fold_span_panic`	`466111` ns/iter (`± 1633`)	`458624` ns/iter (`± 1630`)	`1.02`
`html/document_fragment/visitor/compare/clone`	`338861` ns/iter (`± 2933`)	`341933` ns/iter (`± 1815`)	`0.99`
`html/document_fragment/visitor/compare/visit_mut_span`	`366556` ns/iter (`± 1880`)	`364195` ns/iter (`± 1743`)	`1.01`
`html/document_fragment/visitor/compare/visit_mut_span_panic`	`373524` ns/iter (`± 2556`)	`377711` ns/iter (`± 1238`)	`0.99`
`html/document_fragment/visitor/compare/fold_span`	`404504` ns/iter (`± 1671`)	`404054` ns/iter (`± 1777`)	`1.00`
`html/document_fragment/visitor/compare/fold_span_panic`	`461193` ns/iter (`± 2042`)	`464383` ns/iter (`± 1533`)	`0.99`
`html/lexer/css_2021_spec`	`15550596` ns/iter (`± 7913`)	`15669153` ns/iter (`± 6533`)	`0.99`
`html/lexer/github_com_17_05_2022`	`6048146` ns/iter (`± 4869`)	`6092094` ns/iter (`± 2287`)	`0.99`
`html/lexer/stackoverflow_com_17_05_2022`	`5643404` ns/iter (`± 1973`)	`5678477` ns/iter (`± 1611`)	`0.99`
`html/parser/parser_document/css_2021_spec`	`25993460` ns/iter (`± 204758`)	`26522982` ns/iter (`± 298679`)	`0.98`
`html/parser/parser_document/github_com_17_05_2022`	`8801247` ns/iter (`± 73728`)	`8855866` ns/iter (`± 7744`)	`0.99`
`html/parser/parser_document/stackoverflow_com_17_05_2022`	`7732675` ns/iter (`± 8547`)	`7781802` ns/iter (`± 6694`)	`0.99`
`html/parser/parser_document_fragment/css_2021_spec`	`26056368` ns/iter (`± 339685`)	`26370641` ns/iter (`± 217722`)	`0.99`
`html/parser/parser_document_fragment/github_com_17_05_2022`	`8809003` ns/iter (`± 28645`)	`8795665` ns/iter (`± 11466`)	`1.00`
`html/parser/parser_document_fragment/stackoverflow_com_17_05_2022`	`7759193` ns/iter (`± 4421`)	`7745952` ns/iter (`± 3984`)	`1.00`