test(es/minifier): Add a test for ?? operator (#6282)

**Related issue:** - vercel/next.js#41992.
swc-project · Oct 28, 2022 · 0376da7 · 0376da7 · github-actions · Oct 28, 2022
1 parent fdeb7bc
commit 0376da7
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diff --git a/crates/swc_ecma_minifier/src/compress/optimize/ops.rs b/crates/swc_ecma_minifier/src/compress/optimize/ops.rs
@@ -89,7 +89,7 @@ where
                     || (n.left.is_str() && right.right.is_str())
                 {
                     self.changed = true;
-                    report_change!("Remove extra paren in binray expression");
+                    report_change!("Remove extra paren in binary expression");
                     let left = n.left.take();
                     let BinExpr {
                         op,

diff --git a/crates/swc_ecma_minifier/src/option/terser.rs b/crates/swc_ecma_minifier/src/option/terser.rs
@@ -433,6 +433,8 @@ impl From<TerserEcmaVersion> for EsVersion {
                 2018 => EsVersion::Es2018,
                 2019 => EsVersion::Es2019,
                 2020 => EsVersion::Es2020,
+                2021 => EsVersion::Es2021,
+                2022 => EsVersion::Es2022,
                 _ => {
                     panic!("`{}` is not a valid ecmascript version", v)
                 }

diff --git a/crates/swc_ecma_minifier/tests/fixture/next/41992/1/input.js b/crates/swc_ecma_minifier/tests/fixture/next/41992/1/input.js
@@ -0,0 +1,5 @@
+export const
+    N = (0, p.default)(e = (0, ft.default)((0, p.default)(r).call(r, ((e, t) => {
+        const r = t.get("in");
+        return e[r] ?? (e[r] = []), e[r].push(t), e
+    }), {}))).call(e, ((e, t) => (0, h.default)(e).call(e, t)), []);
diff --git a/crates/swc_ecma_minifier/tests/fixture/next/41992/1/output.js b/crates/swc_ecma_minifier/tests/fixture/next/41992/1/output.js
@@ -0,0 +1,4 @@
+export const N = (0, p.default)(e = (0, ft.default)((0, p.default)(r).call(r, (e1, t)=>{
+    const r1 = t.get("in");
+    return e1[r1] ?? (e1[r1] = []), e1[r1].push(t), e1;
+}, {}))).call(e, (e1, t)=>(0, h.default)(e1).call(e1, t), []);
diff --git a/crates/swc_ecma_minifier/tests/fixture/next/41992/config.json b/crates/swc_ecma_minifier/tests/fixture/next/41992/config.json
@@ -0,0 +1,5 @@
+{
+    "defaults": false,
+    "toplevel": true,
+    "ecma": 2022
+}
Benchmark suite	Current: `0376da7`	Previous: `2813acc`	Ratio
`es/full/bugs-1`	`375490` ns/iter (`± 33572`)	`352364` ns/iter (`± 32659`)	`1.07`
`es/full/minify/libraries/antd`	`1989444821` ns/iter (`± 108177648`)	`1893909427` ns/iter (`± 27658709`)	`1.05`
`es/full/minify/libraries/d3`	`426720872` ns/iter (`± 16164038`)	`430451156` ns/iter (`± 28191819`)	`0.99`
`es/full/minify/libraries/echarts`	`1835654997` ns/iter (`± 251193198`)	`1591439748` ns/iter (`± 57383003`)	`1.15`
`es/full/minify/libraries/jquery`	`114033253` ns/iter (`± 17304024`)	`110710431` ns/iter (`± 8204467`)	`1.03`
`es/full/minify/libraries/lodash`	`125193868` ns/iter (`± 29535757`)	`126074001` ns/iter (`± 5717671`)	`0.99`
`es/full/minify/libraries/moment`	`68482815` ns/iter (`± 9789246`)	`62135767` ns/iter (`± 2952108`)	`1.10`
`es/full/minify/libraries/react`	`21124710` ns/iter (`± 4148212`)	`20406332` ns/iter (`± 419816`)	`1.04`
`es/full/minify/libraries/terser`	`369794963` ns/iter (`± 51121524`)	`329056037` ns/iter (`± 10041735`)	`1.12`
`es/full/minify/libraries/three`	`674775646` ns/iter (`± 110437041`)	`565970118` ns/iter (`± 26010343`)	`1.19`
`es/full/minify/libraries/typescript`	`4434437221` ns/iter (`± 1191856652`)	`3575160525` ns/iter (`± 106495666`)	`1.24`
`es/full/minify/libraries/victory`	`995783465` ns/iter (`± 99987727`)	`836935034` ns/iter (`± 11391541`)	`1.19`
`es/full/minify/libraries/vue`	`210060577` ns/iter (`± 12394326`)	`164826324` ns/iter (`± 5555287`)	`1.27`
`es/full/codegen/es3`	`40660` ns/iter (`± 6051`)	`34129` ns/iter (`± 4919`)	`1.19`
`es/full/codegen/es5`	`43049` ns/iter (`± 7382`)	`35612` ns/iter (`± 3105`)	`1.21`
`es/full/codegen/es2015`	`46788` ns/iter (`± 7279`)	`36287` ns/iter (`± 1687`)	`1.29`
`es/full/codegen/es2016`	`42079` ns/iter (`± 6872`)	`36356` ns/iter (`± 2635`)	`1.16`
`es/full/codegen/es2017`	`45043` ns/iter (`± 7847`)	`35814` ns/iter (`± 2078`)	`1.26`
`es/full/codegen/es2018`	`39600` ns/iter (`± 8035`)	`36764` ns/iter (`± 3862`)	`1.08`
`es/full/codegen/es2019`	`40801` ns/iter (`± 5802`)	`37182` ns/iter (`± 6582`)	`1.10`
`es/full/codegen/es2020`	`42279` ns/iter (`± 7049`)	`37516` ns/iter (`± 8447`)	`1.13`
`es/full/all/es3`	`253417206` ns/iter (`± 38615783`)	`231127284` ns/iter (`± 97082897`)	`1.10`
`es/full/all/es5`	`245352716` ns/iter (`± 43153142`)	`221640278` ns/iter (`± 92846873`)	`1.11`
`es/full/all/es2015`	`185147796` ns/iter (`± 115203301`)	`176807351` ns/iter (`± 81546783`)	`1.05`
`es/full/all/es2016`	`209490296` ns/iter (`± 42000210`)	`184412844` ns/iter (`± 73844187`)	`1.14`
`es/full/all/es2017`	`211955454` ns/iter (`± 55317427`)	`179428278` ns/iter (`± 61952728`)	`1.18`
`es/full/all/es2018`	`200841622` ns/iter (`± 27310943`)	`164754507` ns/iter (`± 61150369`)	`1.22`
`es/full/all/es2019`	`197275826` ns/iter (`± 54734301`)	`170846051` ns/iter (`± 34846502`)	`1.15`
`es/full/all/es2020`	`194821511` ns/iter (`± 37652085`)	`162842416` ns/iter (`± 34336359`)	`1.20`
`es/full/parser`	`1046825` ns/iter (`± 117561`)	`784009` ns/iter (`± 73547`)	`1.34`
`es/full/base/fixer`	`36658` ns/iter (`± 6550`)	`28703` ns/iter (`± 1381`)	`1.28`
`es/full/base/resolver_and_hygiene`	`129103` ns/iter (`± 36780`)	`100668` ns/iter (`± 77011`)	`1.28`
`serialization of ast node`	`230` ns/iter (`± 29`)	`219` ns/iter (`± 10`)	`1.05`
`serialization of serde`	`275` ns/iter (`± 50`)	`225` ns/iter (`± 13`)	`1.22`