Add features up to import attributes

package.json

@@ -19,6 +19,8 @@
     "@babel/plugin-syntax-async-generators": "^7.8.4",
     "@babel/plugin-syntax-bigint": "^7.8.3",
     "@babel/plugin-syntax-class-properties": "^7.12.13",
+    "@babel/plugin-syntax-class-static-block": "^7.14.5",
+    "@babel/plugin-syntax-import-attributes": "^7.24.7",
     "@babel/plugin-syntax-import-meta": "^7.10.4",
     "@babel/plugin-syntax-json-strings": "^7.8.3",
     "@babel/plugin-syntax-logical-assignment-operators": "^7.10.4",
@@ -27,6 +29,7 @@
     "@babel/plugin-syntax-object-rest-spread": "^7.8.3",
     "@babel/plugin-syntax-optional-catch-binding": "^7.8.3",
     "@babel/plugin-syntax-optional-chaining": "^7.8.3",
+    "@babel/plugin-syntax-private-property-in-object": "^7.14.5",
     "@babel/plugin-syntax-top-level-await": "^7.14.5"
   },
   "peerDependencies": {
@@ -35,6 +38,8 @@
   "devDependencies": {
     "@babel/core": "7.25.2",
     "@babel/parser-7.0.0": "npm:@babel/[email protected]",
+    "@babel/parser-7.12.0": "npm:@babel/[email protected]",
+    "@babel/parser-7.22.0": "npm:@babel/[email protected]",
     "@babel/parser-7.9.0": "npm:@babel/[email protected]"
   },
   "license": "MIT",

src/index.js

@@ -8,19 +8,27 @@ const tests = {
   "json-strings": ["'\\u2028'"], // Babel 7.2.0
 
   // ECMAScript 2020
-  "bigint": ["1n"], // Babel 7.8.0
+  bigint: ["1n"], // Babel 7.8.0
   "optional-chaining": ["a?.b"], // Babel 7.9.0
   "nullish-coalescing-operator": ["a ?? b"], // Babel 7.9.0
   // import.meta is handled manually
 
-  // Stage 3
+  // ECMAScript 2021
   "numeric-separator": ["1_2"],
+  "logical-assignment-operators": ["a ||= b", "a &&= b", "a ??= c"],
+
+  // ECMAScript 2022
   "class-properties": [
     "(class { x = 1 })",
     "(class { #x = 1 })",
     "(class { #x() {} })",
   ],
-  "logical-assignment-operators": ["a ||= b", "a &&= b", "a ??= c"],
+  "private-property-in-object": ["(class { #x; m() { #x in y } })"],
+  "class-static-block": ["(class { static {} })"],
+  // top-level await is handled manually
+
+  // Stage 3
+  // import attributes is handled manually
 };
 
 const plugins = [];
@@ -53,5 +61,12 @@ if (major > 10 || (major === 10 && minor >= 4)) {
 if (major > 14 || (major === 14 && minor >= 3)) {
   plugins.push(require.resolve("@babel/plugin-syntax-top-level-await"));
 }
-
+// Similar for import attributes
+if (
+  major > 20 ||
+  (major === 20 && minor >= 10) ||
+  (major === 18 && minor >= 20)
+) {
+  plugins.push(require.resolve("@babel/plugin-syntax-import-attributes"));
+}
 module.exports = () => ({ plugins });

test/fixtures.json

@@ -1,15 +1,21 @@
 {
-  "#______name_______": [ "min node version", "code", "@babel/parser" ],
+  "#______name_______": ["min node version", "code", "@babel/parser"],
   "object rest/spread": [8.6, "({...x})"],
   "async generators": [10.0, "async function* f() {}"],
   "optional catch binding": [10.0, "try {} catch {}"],
   "JSON superset": [10.0, "'\\u2028'"],
   "bigint": [10.8, "10n"],
   "public class fields": [12.4, "class A { x = 1 }"],
   "private class fields": [12.4, "class A { #x = 1 }"],
+  "class blocks": [12.4, "class A { static {} }", "@babel/parser-7.12.0"],
   "numeric separators": [12.7, "1_2"],
   "optional chaining": [14.0, "a?.b"],
   "nullish coalescing": [14.0, "a ?? b"],
   "import.meta": [10.4, "import.meta"],
-  "top level await": [14.3, "await Promise.resolve()", "@babel/parser-7.9.0"]
+  "top level await": [14.3, "await Promise.resolve()", "@babel/parser-7.9.0"],
+  "import attributes": [
+    "18.20",
+    "import 'x' with { type: 'json' }",
+    "@babel/parser-7.22.0"
+  ]
 }

test/index.js

@@ -35,7 +35,7 @@ for (const [name, [version, code, parser]] of Object.entries(fixtures)) {
 
 function selectParser(version = "@babel/parser-7.0.0") {
   return () => ({
-    parserOverride: require(version).parse
+    parserOverride: require(version).parse,
   });
 }
 

yarn.lock

@@ -24,7 +24,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/helper-plugin-utils@npm:^7.8.3":
+"@babel/helper-plugin-utils@npm:^7.14.5, @babel/helper-plugin-utils@npm:^7.24.7, @babel/helper-plugin-utils@npm:^7.8.3":
   version: 7.24.8
   resolution: "@babel/helper-plugin-utils@npm:7.24.8"
   checksum: c480fd570fe91d45ec9de4e9af65ab63b186cff0d2e921cdba7b194316ae2f4359e540bf5d91b46a46046d178eae5711f24858276b2cdc2afb8dc6798fe2d67d
@@ -61,6 +61,24 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@babel/parser-7.12.0@npm:@babel/[email protected]":
+  version: 7.12.0
+  resolution: "@babel/parser@npm:7.12.0"
+  bin:
+    parser: ./bin/babel-parser.js
+  checksum: 0b656c02c810b485481ace5258bd56a008f6e31c14711818c81b7446b6d639c4c1f21c7243072d28a356274bb83d9d81c9eeff12ed3419fcdff8362551c2822b
+  languageName: node
+  linkType: hard
+
+"@babel/parser-7.22.0@npm:@babel/[email protected]":
+  version: 7.22.0
+  resolution: "@babel/parser@npm:7.22.0"
+  bin:
+    parser: ./bin/babel-parser.js
+  checksum: 187df5cd67bd099f3067400b89b47c77bcde38a5936a6c05a97df34f6bfb3fa62c3bda9bb06eee0760966d0e5c8347d5fafd283b74d7d3b0a20d289fcc489798
+  languageName: node
+  linkType: hard
+
 "@babel/parser-7.9.0@npm:@babel/[email protected]":
   version: 7.9.0
   resolution: "@babel/parser@npm:7.9.0"
@@ -103,6 +121,28 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@babel/plugin-syntax-class-static-block@npm:^7.14.5":
+  version: 7.14.5
+  resolution: "@babel/plugin-syntax-class-static-block@npm:7.14.5"
+  dependencies:
+    "@babel/helper-plugin-utils": "npm:^7.14.5"
+  peerDependencies:
+    "@babel/core": ^7.0.0-0
+  checksum: 43bef611dd3912e3adcea1bcb587eaba1b8c8f24dfb134f191488e3521453d4f0a36408e6a3e27b512bee6e1b569c889db31a270d5576e9c34a80326bbc6bd7d
+  languageName: node
+  linkType: hard
+
+"@babel/plugin-syntax-import-attributes@npm:^7.24.7":
+  version: 7.24.7
+  resolution: "@babel/plugin-syntax-import-attributes@npm:7.24.7"
+  dependencies:
+    "@babel/helper-plugin-utils": "npm:^7.24.7"
+  peerDependencies:
+    "@babel/core": ^7.0.0-0
+  checksum: 4fba0afdb9b29b7769190d434ae30934b33675dd67e7665c655d9b9b11732f3f96b98a18556788b32b83798f887bd0d9d8abe51e6b3a6143fcf5b8d7df608339
+  languageName: node
+  linkType: hard
+
 "@babel/plugin-syntax-import-meta@npm:^7.10.4":
   version: 7.10.4
   resolution: "@babel/plugin-syntax-import-meta@npm:7.10.4"
@@ -191,6 +231,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@babel/plugin-syntax-private-property-in-object@npm:^7.14.5":
+  version: 7.14.5
+  resolution: "@babel/plugin-syntax-private-property-in-object@npm:7.14.5"
+  dependencies:
+    "@babel/helper-plugin-utils": "npm:^7.14.5"
+  peerDependencies:
+    "@babel/core": ^7.0.0-0
+  checksum: 1f987725a8e705c255bd3f47d4154445ccc8706c021e4abd0e3ac28bd2ea15f2dd9f44a4db04ca476909c86a366c737a9fcd808a38cfd84ee670c817ef05207f
+  languageName: node
+  linkType: hard
+
 "@babel/plugin-syntax-top-level-await@npm:^7.14.5":
   version: 7.14.5
   resolution: "@babel/plugin-syntax-top-level-await@npm:7.14.5"
@@ -230,10 +281,14 @@ __metadata:
   dependencies:
     "@babel/core": 7.25.2
     "@babel/parser-7.0.0": "npm:@babel/[email protected]"
+    "@babel/parser-7.12.0": "npm:@babel/[email protected]"
+    "@babel/parser-7.22.0": "npm:@babel/[email protected]"
     "@babel/parser-7.9.0": "npm:@babel/[email protected]"
     "@babel/plugin-syntax-async-generators": ^7.8.4
     "@babel/plugin-syntax-bigint": ^7.8.3
     "@babel/plugin-syntax-class-properties": ^7.12.13
+    "@babel/plugin-syntax-class-static-block": ^7.14.5
+    "@babel/plugin-syntax-import-attributes": ^7.24.7
     "@babel/plugin-syntax-import-meta": ^7.10.4
     "@babel/plugin-syntax-json-strings": ^7.8.3
     "@babel/plugin-syntax-logical-assignment-operators": ^7.10.4
@@ -242,6 +297,7 @@ __metadata:
     "@babel/plugin-syntax-object-rest-spread": ^7.8.3
     "@babel/plugin-syntax-optional-catch-binding": ^7.8.3
     "@babel/plugin-syntax-optional-chaining": ^7.8.3
+    "@babel/plugin-syntax-private-property-in-object": ^7.14.5
     "@babel/plugin-syntax-top-level-await": ^7.14.5
   peerDependencies:
     "@babel/core": ^7.0.0