fix(es/codegen): Fix codegen of string literals with \x000 (#6838)

**Related issue:** - Closes #6836.
swc-project · Jan 20, 2023 · df70261 · df70261 · github-actions · Jan 20, 2023
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diff --git a/crates/swc/tests/fixture/issues-6xxx/6836/1/input/.swcrc b/crates/swc/tests/fixture/issues-6xxx/6836/1/input/.swcrc
@@ -0,0 +1,10 @@
+{
+    "jsc": {
+        "parser": {
+            "syntax": "ecmascript",
+            "jsx": false
+        },
+        "target": "es5"
+    },
+    "isModule": true
+}
diff --git a/crates/swc/tests/fixture/issues-6xxx/6836/1/input/index.js b/crates/swc/tests/fixture/issues-6xxx/6836/1/input/index.js
@@ -0,0 +1 @@
+console.log("\x000")
diff --git a/crates/swc/tests/fixture/issues-6xxx/6836/1/output/index.js b/crates/swc/tests/fixture/issues-6xxx/6836/1/output/index.js
@@ -0,0 +1 @@
+console.log("\x000");
diff --git a/crates/swc/tests/fixture/next.js/slack-1/es3/output/index.js b/crates/swc/tests/fixture/next.js/slack-1/es3/output/index.js
@@ -1 +1 @@
-var USTAR = "ustar\000";
+var USTAR = "ustar\x0000";
diff --git a/crates/swc/tests/fixture/next.js/slack-1/es5/output/index.js b/crates/swc/tests/fixture/next.js/slack-1/es5/output/index.js
@@ -1 +1 @@
-var USTAR = "ustar\000";
+var USTAR = "ustar\x0000";
diff --git a/crates/swc/tests/tsc-references/scannerStringLiteralWithContainingNullCharacter1.1.normal.js b/crates/swc/tests/tsc-references/scannerStringLiteralWithContainingNullCharacter1.1.normal.js
@@ -1,2 +1,2 @@
 //// [scannerStringLiteralWithContainingNullCharacter1.ts]
-" \0 ";
+" \x00 ";
diff --git a/crates/swc/tests/tsc-references/templateStringControlCharacterEscapes01.1.normal.js b/crates/swc/tests/tsc-references/templateStringControlCharacterEscapes01.1.normal.js
@@ -1,2 +1,2 @@
 //// [templateStringControlCharacterEscapes01.ts]
-var x = "\0\0\0 0 00 0000";
+var x = "\x00\x00\x00 0 00 0000";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings01_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings01_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInStrings01_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings02_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings02_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInStrings02_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings03_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings03_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInStrings03_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings04_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInStrings04_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInStrings04_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates01_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates01_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInTemplates01_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates02_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates02_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInTemplates02_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates03_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates03_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInTemplates03_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates04_ES5.1.normal.js b/crates/swc/tests/tsc-references/unicodeExtendedEscapesInTemplates04_ES5.1.normal.js
@@ -1,2 +1,2 @@
 //// [unicodeExtendedEscapesInTemplates04_ES5.ts]
-var x = "\0";
+var x = "\x00";
diff --git a/crates/swc_ecma_codegen/src/lib.rs b/crates/swc_ecma_codegen/src/lib.rs
@@ -3477,12 +3477,7 @@ fn get_quoted_utf16(v: &str, ascii_only: bool, target: EsVersion) -> String {
     while let Some(c) = iter.next() {
         match c {
             '\x00' => {
-                let next = iter.peek();
-
-                match next {
-                    Some('1'..='9') => buf.push_str("\\x00"),
-                    _ => buf.push_str("\\0"),
-                }
+                buf.push_str("\\x00");
             }
             '\u{0008}' => buf.push_str("\\b"),
             '\u{000c}' => buf.push_str("\\f"),

diff --git a/crates/swc_ecma_codegen/src/tests.rs b/crates/swc_ecma_codegen/src/tests.rs
@@ -591,36 +591,39 @@ CONTENT\r
 
 #[test]
 fn test_get_quoted_utf16() {
+    #[track_caller]
     fn es2020(src: &str, expected: &str) {
         assert_eq!(
             super::get_quoted_utf16(src, true, EsVersion::Es2020),
             expected
         )
     }
 
+    #[track_caller]
     fn es2020_nonascii(src: &str, expected: &str) {
         assert_eq!(
             super::get_quoted_utf16(src, true, EsVersion::Es2020),
             expected
         )
     }
 
+    #[track_caller]
     fn es5(src: &str, expected: &str) {
         assert_eq!(super::get_quoted_utf16(src, true, EsVersion::Es5), expected)
     }
 
     es2020("abcde", "\"abcde\"");
     es2020(
         "\x00\r\n\u{85}\u{2028}\u{2029};",
-        "\"\\0\\r\\n\\x85\\u2028\\u2029;\"",
+        "\"\\x00\\r\\n\\x85\\u2028\\u2029;\"",
     );
 
     es2020("\n", "\"\\n\"");
     es2020("\t", "\"\t\"");
 
     es2020("'string'", "\"'string'\"");
 
-    es2020("\u{0}", "\"\\0\"");
+    es2020("\u{0}", "\"\\x00\"");
     es2020("\u{1}", "\"\\x01\"");
 
     es2020("\u{1000}", "\"\\u1000\"");
@@ -656,7 +659,7 @@ fn issue_1452_1() {
 fn issue_1619_1() {
     assert_min_target(
         "\"\\x00\" + \"\\x31\"",
-        "\"\\0\"+\"1\"",
+        "\"\\x00\"+\"1\"",
         EsVersion::latest(),
     );
 }
@@ -665,7 +668,7 @@ fn issue_1619_1() {
 fn issue_1619_2() {
     assert_min_target(
         "\"\\x00\" + \"\\x31\"",
-        "\"\\0\"+\"1\"",
+        "\"\\x00\"+\"1\"",
         EsVersion::latest(),
     );
 }

diff --git a/crates/swc_ecma_codegen/tests/fixture/string/output.min.js b/crates/swc_ecma_codegen/tests/fixture/string/output.min.js
diff --git a/crates/swc_ecma_codegen/tests/test262-min/0b1fc7208759253b.js b/crates/swc_ecma_codegen/tests/test262-min/0b1fc7208759253b.js
diff --git a/crates/swc_ecma_codegen/tests/test262-min/3ae4f46daa688c58.js b/crates/swc_ecma_codegen/tests/test262-min/3ae4f46daa688c58.js
@@ -1 +1 @@
-"use strict";("\0");
+"use strict";("\x00");
diff --git a/crates/swc_ecma_codegen/tests/test262-min/3d2ab39608730a47.js b/crates/swc_ecma_codegen/tests/test262-min/3d2ab39608730a47.js
@@ -1 +1 @@
-"use strict";("\0x");
+"use strict";("\x00x");
diff --git a/crates/swc_ecma_codegen/tests/test262-min/4672c2ef688237c9.js b/crates/swc_ecma_codegen/tests/test262-min/4672c2ef688237c9.js
@@ -1 +1 @@
-"\n\r	\v\b\f\\'\"\0";
+"\n\r	\v\b\f\\'\"\x00";
diff --git a/crates/swc_ecma_codegen/tests/test262-min/4fee4ac53bdfd7f7.js b/crates/swc_ecma_codegen/tests/test262-min/4fee4ac53bdfd7f7.js
@@ -1 +1 @@
-"Hello\0World";
+"Hello\x00World";
diff --git a/crates/swc_ecma_codegen/tests/test262-min/7c03e5eb6a9f6f1a.js b/crates/swc_ecma_codegen/tests/test262-min/7c03e5eb6a9f6f1a.js
@@ -1 +1 @@
-function a(){"use strict";"\0"}
+function a(){"use strict";"\x00"}
diff --git a/crates/swc_ecma_codegen/tests/test262-min/84f901eb37273117.js b/crates/swc_ecma_codegen/tests/test262-min/84f901eb37273117.js
@@ -1 +1 @@
-("\0");
+("\x00");
diff --git a/crates/swc_ecma_codegen/tests/test262-min/c7e5fba8bf3854cd.js b/crates/swc_ecma_codegen/tests/test262-min/c7e5fba8bf3854cd.js
@@ -1 +1 @@
-(function(){"use strict";"\0"}());
+(function(){"use strict";"\x00"}());
diff --git a/crates/swc_ecma_codegen/tests/test262-min/d81d71f4121e3193.js b/crates/swc_ecma_codegen/tests/test262-min/d81d71f4121e3193.js
@@ -1 +1 @@
-("\0");
+("\x00");
diff --git a/crates/swc_ecma_codegen/tests/test262/0b1fc7208759253b.js b/crates/swc_ecma_codegen/tests/test262/0b1fc7208759253b.js
diff --git a/crates/swc_ecma_codegen/tests/test262/3ae4f46daa688c58.js b/crates/swc_ecma_codegen/tests/test262/3ae4f46daa688c58.js
@@ -1,2 +1,2 @@
 "use strict";
-("\0");
+("\x00");
diff --git a/crates/swc_ecma_codegen/tests/test262/3d2ab39608730a47.js b/crates/swc_ecma_codegen/tests/test262/3d2ab39608730a47.js
@@ -1,2 +1,2 @@
 "use strict";
-("\0x");
+("\x00x");
diff --git a/crates/swc_ecma_codegen/tests/test262/4672c2ef688237c9.js b/crates/swc_ecma_codegen/tests/test262/4672c2ef688237c9.js
@@ -1 +1 @@
-"\n\r	\v\b\f\\'\"\0";
+"\n\r	\v\b\f\\'\"\x00";
diff --git a/crates/swc_ecma_codegen/tests/test262/4fee4ac53bdfd7f7.js b/crates/swc_ecma_codegen/tests/test262/4fee4ac53bdfd7f7.js
@@ -1 +1 @@
-"Hello\0World";
+"Hello\x00World";
diff --git a/crates/swc_ecma_codegen/tests/test262/7c03e5eb6a9f6f1a.js b/crates/swc_ecma_codegen/tests/test262/7c03e5eb6a9f6f1a.js
@@ -1,4 +1,4 @@
 function a() {
     "use strict";
-    "\0";
+    "\x00";
 }
diff --git a/crates/swc_ecma_codegen/tests/test262/84f901eb37273117.js b/crates/swc_ecma_codegen/tests/test262/84f901eb37273117.js
@@ -1 +1 @@
-("\0");
+("\x00");
diff --git a/crates/swc_ecma_codegen/tests/test262/c7e5fba8bf3854cd.js b/crates/swc_ecma_codegen/tests/test262/c7e5fba8bf3854cd.js
@@ -1,4 +1,4 @@
 (function() {
     "use strict";
-    "\0";
+    "\x00";
 }());
diff --git a/crates/swc_ecma_codegen/tests/test262/d81d71f4121e3193.js b/crates/swc_ecma_codegen/tests/test262/d81d71f4121e3193.js
@@ -1 +1 @@
-("\0");
+("\x00");
diff --git a/crates/swc_ecma_minifier/tests/fixture/next/react-pdf-renderer/output.js b/crates/swc_ecma_minifier/tests/fixture/next/react-pdf-renderer/output.js
@@ -2097,7 +2097,7 @@
                                     }
                                 })
                             }) : t.push({
-                                string: s.replace(i, "\0"),
+                                string: s.replace(i, "\x00"),
                                 attributes: n.attributes
                             }), o = a + u.length;
                         }

diff --git a/...ecma_minifier/tests/terser/compress/object/property_with_unprintable/output.mangleOnly.js b/...ecma_minifier/tests/terser/compress/object/property_with_unprintable/output.mangleOnly.js
@@ -1,4 +1,4 @@
-var r = {
+var x = {
     "\0": "foo",
     get "\0" () {
         return "bar";
@@ -10,12 +10,12 @@ var r = {
         return "foobar";
     }
 };
-class e {
+class r {
     get "\0"() {
         return "bar";
     }
-    set "\0"(r) {
-        save(r);
+    set "\0"(x) {
+        save(x);
     }
     *"\0"() {
         return "foobar";

diff --git a/...er/tests/terser/compress/object/property_with_unprintable_ascii_only/output.mangleOnly.js b/...er/tests/terser/compress/object/property_with_unprintable_ascii_only/output.mangleOnly.js
@@ -1,4 +1,4 @@
-var r = {
+var x = {
     "\0\x01": "foo",
     get "\0\x01" () {
         return "bar";
@@ -10,12 +10,12 @@ var r = {
         return "foobar";
     }
 };
-class e {
+class r {
     get "\0\x01"() {
         return "bar";
     }
-    set "\0\x01"(r) {
-        save(r);
+    set "\0\x01"(x) {
+        save(x);
     }
     *"\0\x01"() {
         return "foobar";
Benchmark suite	Current: `df70261`	Previous: `7205543`	Ratio
`es/full/bugs-1`	`339282` ns/iter (`± 8018`)	`302634` ns/iter (`± 8619`)	`1.12`
`es/full/minify/libraries/antd`	`2020477325` ns/iter (`± 37312656`)	`1754528121` ns/iter (`± 20609853`)	`1.15`
`es/full/minify/libraries/d3`	`408036083` ns/iter (`± 1165623`)	`317509454` ns/iter (`± 5436491`)	`1.29`
`es/full/minify/libraries/echarts`	`1555690067` ns/iter (`± 9638350`)	`1349861197` ns/iter (`± 23075484`)	`1.15`
`es/full/minify/libraries/jquery`	`119423066` ns/iter (`± 1023538`)	`92949255` ns/iter (`± 667750`)	`1.28`
`es/full/minify/libraries/lodash`	`145943427` ns/iter (`± 831741`)	`108655873` ns/iter (`± 1171897`)	`1.34`
`es/full/minify/libraries/moment`	`67844594` ns/iter (`± 217788`)	`53763340` ns/iter (`± 277242`)	`1.26`
`es/full/minify/libraries/react`	`23593746` ns/iter (`± 107448`)	`19270692` ns/iter (`± 91515`)	`1.22`
`es/full/minify/libraries/terser`	`349483138` ns/iter (`± 1538007`)	`261976546` ns/iter (`± 5032591`)	`1.33`
`es/full/minify/libraries/three`	`595905515` ns/iter (`± 2954925`)	`475651033` ns/iter (`± 4843971`)	`1.25`
`es/full/minify/libraries/typescript`	`3754358610` ns/iter (`± 18213841`)	`3288143634` ns/iter (`± 12082398`)	`1.14`
`es/full/minify/libraries/victory`	`888378373` ns/iter (`± 3318067`)	`728694218` ns/iter (`± 12123083`)	`1.22`
`es/full/minify/libraries/vue`	`180432788` ns/iter (`± 800815`)	`136331664` ns/iter (`± 1276179`)	`1.32`
`es/full/codegen/es3`	`26546` ns/iter (`± 73`)	`25832` ns/iter (`± 57`)	`1.03`
`es/full/codegen/es5`	`26512` ns/iter (`± 103`)	`25964` ns/iter (`± 42`)	`1.02`
`es/full/codegen/es2015`	`26496` ns/iter (`± 74`)	`25948` ns/iter (`± 50`)	`1.02`
`es/full/codegen/es2016`	`26535` ns/iter (`± 54`)	`25898` ns/iter (`± 49`)	`1.02`
`es/full/codegen/es2017`	`26517` ns/iter (`± 71`)	`25967` ns/iter (`± 61`)	`1.02`
`es/full/codegen/es2018`	`26497` ns/iter (`± 89`)	`25973` ns/iter (`± 67`)	`1.02`
`es/full/codegen/es2019`	`26517` ns/iter (`± 57`)	`25934` ns/iter (`± 61`)	`1.02`
`es/full/codegen/es2020`	`26505` ns/iter (`± 33`)	`25909` ns/iter (`± 62`)	`1.02`
`es/full/all/es3`	`213075312` ns/iter (`± 2728595`)	`171684783` ns/iter (`± 2021376`)	`1.24`
`es/full/all/es5`	`200966179` ns/iter (`± 2875251`)	`163767287` ns/iter (`± 1625223`)	`1.23`
`es/full/all/es2015`	`153199390` ns/iter (`± 4611003`)	`125012378` ns/iter (`± 947613`)	`1.23`
`es/full/all/es2016`	`149830360` ns/iter (`± 4014678`)	`123165227` ns/iter (`± 1599892`)	`1.22`
`es/full/all/es2017`	`150880749` ns/iter (`± 1592249`)	`121569292` ns/iter (`± 977079`)	`1.24`
`es/full/all/es2018`	`145639875` ns/iter (`± 3310719`)	`120230844` ns/iter (`± 992277`)	`1.21`
`es/full/all/es2019`	`146939510` ns/iter (`± 3953142`)	`119695917` ns/iter (`± 648927`)	`1.23`
`es/full/all/es2020`	`143195256` ns/iter (`± 1369687`)	`115082124` ns/iter (`± 1073100`)	`1.24`
`es/full/parser`	`562165` ns/iter (`± 12273`)	`540707` ns/iter (`± 7750`)	`1.04`
`es/full/base/fixer`	`22476` ns/iter (`± 28`)	`21983` ns/iter (`± 28`)	`1.02`
`es/full/base/resolver_and_hygiene`	`81697` ns/iter (`± 124`)	`80445` ns/iter (`± 99`)	`1.02`
`serialization of ast node`	`144` ns/iter (`± 0`)	`145` ns/iter (`± 0`)	`0.99`
`serialization of serde`	`130` ns/iter (`± 0`)	`130` ns/iter (`± 0`)	`1`
`css/minify/libraries/bootstrap`	`31211511` ns/iter (`± 54489`)	`28177951` ns/iter (`± 218528`)	`1.11`
`css/visitor/compare/clone`	`2831296` ns/iter (`± 43978`)	`2065755` ns/iter (`± 11081`)	`1.37`
`css/visitor/compare/visit_mut_span`	`3116884` ns/iter (`± 117362`)	`2269054` ns/iter (`± 10056`)	`1.37`
`css/visitor/compare/visit_mut_span_panic`	`3180155` ns/iter (`± 29682`)	`2295705` ns/iter (`± 6335`)	`1.39`
`css/visitor/compare/fold_span`	`4112294` ns/iter (`± 39689`)	`3027146` ns/iter (`± 20067`)	`1.36`
`css/visitor/compare/fold_span_panic`	`4398536` ns/iter (`± 37289`)	`3157622` ns/iter (`± 21556`)	`1.39`
`css/lexer/bootstrap_5_1_3`	`5279512` ns/iter (`± 23948`)	`5175245` ns/iter (`± 5952`)	`1.02`
`css/lexer/foundation_6_7_4`	`4429625` ns/iter (`± 1709`)	`4357196` ns/iter (`± 5811`)	`1.02`
`css/lexer/tailwind_3_1_1`	`841555` ns/iter (`± 428`)	`828691` ns/iter (`± 679`)	`1.02`
`css/parser/bootstrap_5_1_3`	`23605003` ns/iter (`± 90626`)	`21778097` ns/iter (`± 72964`)	`1.08`
`css/parser/foundation_6_7_4`	`18845985` ns/iter (`± 30180`)	`17325116` ns/iter (`± 43512`)	`1.09`
`css/parser/tailwind_3_1_1`	`3504408` ns/iter (`± 9501`)	`3318949` ns/iter (`± 8935`)	`1.06`
`es/codegen/colors`	`295615` ns/iter (`± 164367`)	`330332` ns/iter (`± 185627`)	`0.89`
`es/codegen/large`	`2639905` ns/iter (`± 1576748`)	`1207674` ns/iter (`± 610211`)	`2.19`
`es/codegen/with-parser/colors`	`49267` ns/iter (`± 398`)	`48584` ns/iter (`± 340`)	`1.01`
`es/codegen/with-parser/large`	`550787` ns/iter (`± 2638`)	`538624` ns/iter (`± 1614`)	`1.02`
`es/minify/libraries/antd`	`1738898711` ns/iter (`± 8372492`)	`1564080477` ns/iter (`± 15817706`)	`1.11`
`es/minify/libraries/d3`	`356805535` ns/iter (`± 1261172`)	`265477364` ns/iter (`± 4974840`)	`1.34`
`es/minify/libraries/echarts`	`1329064999` ns/iter (`± 4240455`)	`1156348746` ns/iter (`± 20610931`)	`1.15`
`es/minify/libraries/jquery`	`104204016` ns/iter (`± 762625`)	`80367619` ns/iter (`± 1979696`)	`1.30`
`es/minify/libraries/lodash`	`132114933` ns/iter (`± 646381`)	`97211452` ns/iter (`± 1147846`)	`1.36`
`es/minify/libraries/moment`	`59760120` ns/iter (`± 421550`)	`46635963` ns/iter (`± 320520`)	`1.28`
`es/minify/libraries/react`	`21044437` ns/iter (`± 118979`)	`17304098` ns/iter (`± 138864`)	`1.22`
`es/minify/libraries/terser`	`305672597` ns/iter (`± 1487312`)	`219568020` ns/iter (`± 2864092`)	`1.39`
`es/minify/libraries/three`	`508687686` ns/iter (`± 2594831`)	`400563343` ns/iter (`± 5302651`)	`1.27`
`es/minify/libraries/typescript`	`3164789738` ns/iter (`± 15786120`)	`2818357970` ns/iter (`± 10428453`)	`1.12`
`es/minify/libraries/victory`	`765997255` ns/iter (`± 2400987`)	`623439027` ns/iter (`± 11808582`)	`1.23`
`es/minify/libraries/vue`	`163945563` ns/iter (`± 502171`)	`119190579` ns/iter (`± 1028200`)	`1.38`
`es/visitor/compare/clone`	`3524587` ns/iter (`± 75907`)	`2401622` ns/iter (`± 21369`)	`1.47`
`es/visitor/compare/visit_mut_span`	`4191984` ns/iter (`± 24937`)	`2836177` ns/iter (`± 23919`)	`1.48`
`es/visitor/compare/visit_mut_span_panic`	`4314549` ns/iter (`± 43772`)	`2876571` ns/iter (`± 6925`)	`1.50`
`es/visitor/compare/fold_span`	`5716645` ns/iter (`± 41340`)	`3988756` ns/iter (`± 8412`)	`1.43`
`es/visitor/compare/fold_span_panic`	`5920366` ns/iter (`± 48325`)	`4142528` ns/iter (`± 42542`)	`1.43`
`es/lexer/colors`	`17422` ns/iter (`± 13`)	`17256` ns/iter (`± 27`)	`1.01`
`es/lexer/angular`	`8493460` ns/iter (`± 2803`)	`8243000` ns/iter (`± 7827`)	`1.03`
`es/lexer/backbone`	`1098345` ns/iter (`± 296`)	`1079670` ns/iter (`± 1028`)	`1.02`
`es/lexer/jquery`	`6141959` ns/iter (`± 3741`)	`5975874` ns/iter (`± 4806`)	`1.03`
`es/lexer/jquery mobile`	`9480067` ns/iter (`± 14278`)	`9215885` ns/iter (`± 14610`)	`1.03`
`es/lexer/mootools`	`4793144` ns/iter (`± 3980`)	`4671164` ns/iter (`± 8371`)	`1.03`
`es/lexer/underscore`	`915077` ns/iter (`± 668`)	`902164` ns/iter (`± 701`)	`1.01`
`es/lexer/three`	`29066778` ns/iter (`± 38153`)	`27981921` ns/iter (`± 29171`)	`1.04`
`es/lexer/yui`	`5202216` ns/iter (`± 4940`)	`5057211` ns/iter (`± 3719`)	`1.03`
`es/parser/colors`	`31618` ns/iter (`± 194`)	`31103` ns/iter (`± 143`)	`1.02`
`es/parser/angular`	`18348952` ns/iter (`± 300705`)	`15960990` ns/iter (`± 99508`)	`1.15`
`es/parser/backbone`	`2555008` ns/iter (`± 36044`)	`2350329` ns/iter (`± 11844`)	`1.09`
`es/parser/jquery`	`15166291` ns/iter (`± 258412`)	`12755482` ns/iter (`± 79498`)	`1.19`
`es/parser/jquery mobile`	`24250182` ns/iter (`± 312469`)	`20372702` ns/iter (`± 154401`)	`1.19`
`es/parser/mootools`	`11340707` ns/iter (`± 91892`)	`9807389` ns/iter (`± 18506`)	`1.16`
`es/parser/underscore`	`2124839` ns/iter (`± 23340`)	`2003962` ns/iter (`± 11382`)	`1.06`
`es/parser/three`	`66875152` ns/iter (`± 189396`)	`61494059` ns/iter (`± 367939`)	`1.09`
`es/parser/yui`	`11452494` ns/iter (`± 178461`)	`9703996` ns/iter (`± 54095`)	`1.18`
`es/preset-env/usage/builtin_type`	`140525` ns/iter (`± 30593`)	`143208` ns/iter (`± 33022`)	`0.98`
`es/preset-env/usage/property`	`21661` ns/iter (`± 96`)	`21389` ns/iter (`± 93`)	`1.01`
`es/resolver/typescript`	`129391817` ns/iter (`± 3884900`)	`123923196` ns/iter (`± 4503446`)	`1.04`
`es/fixer/typescript`	`102303732` ns/iter (`± 1340748`)	`99521875` ns/iter (`± 3141329`)	`1.03`
`es/hygiene/typescript`	`223311361` ns/iter (`± 1916017`)	`205517957` ns/iter (`± 1315763`)	`1.09`
`es/resolver_with_hygiene/typescript`	`384079584` ns/iter (`± 3034791`)	`351056834` ns/iter (`± 1996718`)	`1.09`
`es/visitor/base-perf/module_clone`	`76603` ns/iter (`± 770`)	`75209` ns/iter (`± 1470`)	`1.02`
`es/visitor/base-perf/fold_empty`	`87055` ns/iter (`± 1185`)	`85148` ns/iter (`± 1548`)	`1.02`
`es/visitor/base-perf/fold_noop_impl_all`	`86975` ns/iter (`± 1772`)	`84891` ns/iter (`± 391`)	`1.02`
`es/visitor/base-perf/fold_noop_impl_vec`	`87243` ns/iter (`± 1349`)	`85646` ns/iter (`± 1262`)	`1.02`
`es/visitor/base-perf/boxing_boxed_clone`	`56` ns/iter (`± 0`)	`56` ns/iter (`± 0`)	`1`
`es/visitor/base-perf/boxing_unboxed_clone`	`59` ns/iter (`± 0`)	`59` ns/iter (`± 0`)	`1`
`es/visitor/base-perf/boxing_boxed`	`104` ns/iter (`± 0`)	`104` ns/iter (`± 0`)	`1`
`es/visitor/base-perf/boxing_unboxed`	`103` ns/iter (`± 0`)	`103` ns/iter (`± 0`)	`1`
`es/visitor/base-perf/visit_contains_this`	`3508` ns/iter (`± 68`)	`3436` ns/iter (`± 101`)	`1.02`
`es/base/parallel/resolver/typescript`	`5649126209` ns/iter (`± 234143046`)	`5901165347` ns/iter (`± 546858764`)	`0.96`
`es/base/parallel/hygiene/typescript`	`2744067109` ns/iter (`± 38748395`)	`2395657128` ns/iter (`± 36414499`)	`1.15`
`misc/visitors/time-complexity/time 5`	`93` ns/iter (`± 0`)	`93` ns/iter (`± 0`)	`1`
`misc/visitors/time-complexity/time 10`	`339` ns/iter (`± 0`)	`342` ns/iter (`± 0`)	`0.99`
`misc/visitors/time-complexity/time 15`	`627` ns/iter (`± 3`)	`636` ns/iter (`± 0`)	`0.99`
`misc/visitors/time-complexity/time 20`	`1173` ns/iter (`± 5`)	`1163` ns/iter (`± 0`)	`1.01`
`misc/visitors/time-complexity/time 40`	`6223` ns/iter (`± 41`)	`6090` ns/iter (`± 30`)	`1.02`
`misc/visitors/time-complexity/time 60`	`15570` ns/iter (`± 21`)	`15700` ns/iter (`± 285`)	`0.99`
`es/full-target/es2016`	`193827` ns/iter (`± 245`)	`188489` ns/iter (`± 580`)	`1.03`
`es/full-target/es2017`	`188382` ns/iter (`± 635`)	`183122` ns/iter (`± 584`)	`1.03`
`es/full-target/es2018`	`177309` ns/iter (`± 325`)	`172313` ns/iter (`± 282`)	`1.03`
`es2020_nullish_coalescing`	`68644` ns/iter (`± 6880`)	`67233` ns/iter (`± 104`)	`1.02`
`es2020_optional_chaining`	`98803` ns/iter (`± 9072`)	`96433` ns/iter (`± 284`)	`1.02`
`es2022_class_properties`	`96001` ns/iter (`± 121`)	`94083` ns/iter (`± 258`)	`1.02`
`es2018_object_rest_spread`	`73098` ns/iter (`± 144`)	`70979` ns/iter (`± 129`)	`1.03`
`es2019_optional_catch_binding`	`62815` ns/iter (`± 94`)	`61310` ns/iter (`± 136`)	`1.02`
`es2017_async_to_generator`	`63158` ns/iter (`± 116`)	`61725` ns/iter (`± 83`)	`1.02`
`es2016_exponentiation`	`66849` ns/iter (`± 234`)	`64937` ns/iter (`± 134`)	`1.03`
`es2015_arrow`	`71882` ns/iter (`± 293`)	`69863` ns/iter (`± 240`)	`1.03`
`es2015_block_scoped_fn`	`67663` ns/iter (`± 91`)	`66145` ns/iter (`± 140`)	`1.02`
`es2015_block_scoping`	`151335` ns/iter (`± 8766`)	`153742` ns/iter (`± 8913`)	`0.98`
`es2015_classes`	`120874` ns/iter (`± 573`)	`116983` ns/iter (`± 468`)	`1.03`
`es2015_computed_props`	`62685` ns/iter (`± 51`)	`61347` ns/iter (`± 110`)	`1.02`
`es2015_destructuring`	`118788` ns/iter (`± 515`)	`116500` ns/iter (`± 137`)	`1.02`
`es2015_duplicate_keys`	`65104` ns/iter (`± 143`)	`63941` ns/iter (`± 99`)	`1.02`
`es2015_parameters`	`81635` ns/iter (`± 149`)	`78420` ns/iter (`± 245`)	`1.04`
`es2015_fn_name`	`69650` ns/iter (`± 708`)	`65404` ns/iter (`± 540`)	`1.06`
`es2015_for_of`	`65715` ns/iter (`± 127`)	`63086` ns/iter (`± 118`)	`1.04`
`es2015_instanceof`	`64936` ns/iter (`± 104`)	`62021` ns/iter (`± 136`)	`1.05`
`es2015_shorthand_property`	`62680` ns/iter (`± 103`)	`59811` ns/iter (`± 78`)	`1.05`
`es2015_spread`	`62559` ns/iter (`± 106`)	`59959` ns/iter (`± 119`)	`1.04`
`es2015_sticky_regex`	`63830` ns/iter (`± 126`)	`61104` ns/iter (`± 156`)	`1.04`
`es2015_typeof_symbol`	`63894` ns/iter (`± 56`)	`61041` ns/iter (`± 68`)	`1.05`
`es/transform/baseline/base`	`53160` ns/iter (`± 128`)	`51089` ns/iter (`± 78`)	`1.04`
`es/transform/baseline/common_reserved_word`	`64179` ns/iter (`± 119`)	`61633` ns/iter (`± 99`)	`1.04`
`es/transform/baseline/common_typescript`	`148362` ns/iter (`± 5338`)	`166067` ns/iter (`± 227`)	`0.89`
`es/target/es3`	`174779` ns/iter (`± 239`)	`166280` ns/iter (`± 284`)	`1.05`
`es/target/es2015`	`648038` ns/iter (`± 2160`)	`601338` ns/iter (`± 834`)	`1.08`
`es/target/es2016`	`66874` ns/iter (`± 136`)	`63799` ns/iter (`± 75`)	`1.05`
`es/target/es2017`	`63313` ns/iter (`± 96`)	`60618` ns/iter (`± 98`)	`1.04`
`es/target/es2018`	`83372` ns/iter (`± 130`)	`79348` ns/iter (`± 116`)	`1.05`
`es/target/es2020`	`136903` ns/iter (`± 457`)	`128964` ns/iter (`± 203`)	`1.06`
`babelify-only`	`691914` ns/iter (`± 1743`)	`676955` ns/iter (`± 1315`)	`1.02`
`parse_and_babelify_angular`	`50893768` ns/iter (`± 821073`)	`46564210` ns/iter (`± 901781`)	`1.09`
`parse_and_babelify_backbone`	`7424410` ns/iter (`± 123087`)	`5510762` ns/iter (`± 48300`)	`1.35`
`parse_and_babelify_jquery`	`40122368` ns/iter (`± 484303`)	`33248887` ns/iter (`± 386200`)	`1.21`
`parse_and_babelify_jquery_mobile`	`66018280` ns/iter (`± 743545`)	`56710953` ns/iter (`± 809178`)	`1.16`
`parse_and_babelify_mootools`	`40444998` ns/iter (`± 293203`)	`34998815` ns/iter (`± 687549`)	`1.16`
`parse_and_babelify_underscore`	`5850222` ns/iter (`± 58718`)	`4376321` ns/iter (`± 17560`)	`1.34`
`parse_and_babelify_yui`	`39801319` ns/iter (`± 739701`)	`34638031` ns/iter (`± 872522`)	`1.15`
`html/minify/document/css_spec`	`50427530` ns/iter (`± 144405`)	`42715190` ns/iter (`± 347109`)	`1.18`
`html/minify/document/github`	`20044877` ns/iter (`± 31471`)	`17669451` ns/iter (`± 96094`)	`1.13`
`html/minify/document/stackoverflow`	`18248549` ns/iter (`± 31553`)	`15749019` ns/iter (`± 55175`)	`1.16`
`html/minify/document_fragment/css_spec`	`48600471` ns/iter (`± 78824`)	`41114566` ns/iter (`± 333235`)	`1.18`
`html/minify/document_fragment/github`	`19218918` ns/iter (`± 55783`)	`16950737` ns/iter (`± 51305`)	`1.13`
`html/minify/document_fragment/stackoverflow`	`17653700` ns/iter (`± 19435`)	`15400279` ns/iter (`± 93899`)	`1.15`
`html/document/visitor/compare/clone`	`353520` ns/iter (`± 1356`)	`340936` ns/iter (`± 1986`)	`1.04`
`html/document/visitor/compare/visit_mut_span`	`374856` ns/iter (`± 2405`)	`367018` ns/iter (`± 2152`)	`1.02`
`html/document/visitor/compare/visit_mut_span_panic`	`385232` ns/iter (`± 1886`)	`376662` ns/iter (`± 1551`)	`1.02`
`html/document/visitor/compare/fold_span`	`414385` ns/iter (`± 1723`)	`407205` ns/iter (`± 2440`)	`1.02`
`html/document/visitor/compare/fold_span_panic`	`472884` ns/iter (`± 2672`)	`460949` ns/iter (`± 2343`)	`1.03`
`html/document_fragment/visitor/compare/clone`	`347196` ns/iter (`± 1604`)	`345647` ns/iter (`± 1828`)	`1.00`
`html/document_fragment/visitor/compare/visit_mut_span`	`376288` ns/iter (`± 2483`)	`366156` ns/iter (`± 1719`)	`1.03`
`html/document_fragment/visitor/compare/visit_mut_span_panic`	`383711` ns/iter (`± 1844`)	`381774` ns/iter (`± 2245`)	`1.01`
`html/document_fragment/visitor/compare/fold_span`	`413489` ns/iter (`± 2047`)	`410284` ns/iter (`± 1907`)	`1.01`
`html/document_fragment/visitor/compare/fold_span_panic`	`472181` ns/iter (`± 2704`)	`460944` ns/iter (`± 2151`)	`1.02`
`html/lexer/css_2021_spec`	`16014388` ns/iter (`± 27810`)	`15648082` ns/iter (`± 16491`)	`1.02`
`html/lexer/github_com_17_05_2022`	`6195054` ns/iter (`± 9014`)	`6043261` ns/iter (`± 8689`)	`1.03`
`html/lexer/stackoverflow_com_17_05_2022`	`5808371` ns/iter (`± 7131`)	`5647912` ns/iter (`± 4161`)	`1.03`
`html/parser/parser_document/css_2021_spec`	`30030188` ns/iter (`± 254389`)	`25698606` ns/iter (`± 152043`)	`1.17`
`html/parser/parser_document/github_com_17_05_2022`	`9779462` ns/iter (`± 21948`)	`8806054` ns/iter (`± 11876`)	`1.11`
`html/parser/parser_document/stackoverflow_com_17_05_2022`	`8392478` ns/iter (`± 10976`)	`7755110` ns/iter (`± 4269`)	`1.08`
`html/parser/parser_document_fragment/css_2021_spec`	`30473655` ns/iter (`± 67026`)	`26339904` ns/iter (`± 275850`)	`1.16`
`html/parser/parser_document_fragment/github_com_17_05_2022`	`9803043` ns/iter (`± 48108`)	`8832667` ns/iter (`± 15592`)	`1.11`
`html/parser/parser_document_fragment/stackoverflow_com_17_05_2022`	`8373841` ns/iter (`± 10085`)	`7790507` ns/iter (`± 4385`)	`1.07`