Add yuku-ts parser (#19629)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

CONTRIBUTING.md

@@ -63,7 +63,7 @@ A list of parser names.
 
 The tests verify that the parsers in this list produce the same output.
 
-If the list includes `typescript`, then `babel-ts`, and `oxc-ts` are included implicitly.
+If the list includes `typescript`, then `babel-ts`, `oxc-ts`, and `yuku-ts` are included implicitly.
 
 If the list includes `flow`, then `hermes` is included implicitly.
 

changelog_unreleased/javascript/19629.md

@@ -0,0 +1,26 @@
+#### Added a new official plugin `@prettier/plugin-yuku` (#19628, #19629 by @fisker)
+
+`@prettier/plugin-yuku` is powered by [Yuku](https://yuku.fyi/) (A high-performance JavaScript/TypeScript compiler toolchain written in Zig).
+
+This plugin includes two new parsers: `yuku` (JavaScript syntax) and `yuku-ts` (TypeScript syntax).
+
+**To use this plugin:**
+
+1. Install the plugin:
+
+   ```bash
+   yarn add --dev prettier @prettier/plugin-yuku
+   ```
+
+2. Add it to your `.prettierrc`:
+
+   ```yaml
+   plugins:
+     - "@prettier/plugin-yuku"
+   ```
+
+Due to package size limitations, this plugin is not bundled with the main prettier package and must be installed separately.
+
+For more information, check [the package homepage](https://github.com/prettier/prettier/tree/main/packages/plugin-yuku).
+
+Big thanks to [@arshad-yaseen](https://github.com/arshad-yaseen) for his excellent work.

package.json

@@ -132,7 +132,7 @@
     "wcwidth.js": "2.0.0",
     "yaml": "2.9.0",
     "yaml-unist-parser": "3.2.0",
-    "yuku-parser": "0.6.2"
+    "yuku-parser": "0.6.3"
   },
   "devDependencies": {
     "@babel/generator": "8.0.0",
@@ -141,9 +141,9 @@
     "@types/jsesc": "3.0.3",
     "@typescript-eslint/eslint-plugin": "8.64.0",
     "@typescript-eslint/parser": "8.64.0",
-    "@yuku-parser/wasm": "0.6.2",
+    "@yuku-parser/wasm": "0.6.3",
     "base64-arraybuffer-es6": "3.1.0",
-    "browserslist": "4.28.5",
+    "browserslist": "4.28.6",
     "browserslist-to-esbuild": "2.1.1",
     "buffer": "6.0.3",
     "c8": "11.0.0",

packages/plugin-yuku/README.md

@@ -49,6 +49,11 @@ const config = {
       parser: "yuku",
       plugins: [prettierPluginYuku],
     },
+    {
+      files: ["**/*.{ts,mts,cts,tsx}"],
+      parser: "yuku-ts",
+      plugins: [prettierPluginYuku],
+    },
   ],
 };
 

packages/plugin-yuku/languages.evaluate.js

@@ -1,6 +1,9 @@
 import builtinJsLanguages from "../../src/language-js/languages.evaluate.js";
 
-const replacements = new Map([["babel", "yuku"]]);
+const replacements = new Map([
+  ["babel", "yuku"],
+  ["typescript", "yuku-ts"],
+]);
 
 const languages = builtinJsLanguages
   .map((language) => {

src/language-js/parse/postprocess/index.js

@@ -52,13 +52,13 @@ const isNodeWithRaw = createTypeCheckFunction([
     | "meriyah"
     | "oxc-js"
     | "oxc-ts"
+    | "yuku-js"
+    | "yuku-ts"
     | "typescript"
-    | "yuku-js",
 }} options
 */
 function postprocess(ast, options) {
   const { text, astType } = options;
-  const isOxcTs = astType === "oxc-ts";
   const { comments } = ast;
 
   mergeNestledJsdocComments(comments);
@@ -73,7 +73,11 @@ function postprocess(ast, options) {
   }
 
   if (ast.hashbang) {
-    if (isOxcTs || astType === "yuku-js") {
+    if (
+      astType === "oxc-ts" ||
+      astType === "yuku-js" ||
+      astType === "yuku-ts"
+    ) {
       comments.unshift(ast.hashbang);
     }
     delete ast.hashbang;
@@ -104,7 +108,7 @@ function postprocess(ast, options) {
           }
 
           let shouldKeepParenthesizedExpression = false;
-          if (!isOxcTs) {
+          if (astType !== "oxc-ts") {
             if (!typeCastCommentsEnds) {
               typeCastCommentsEnds = [];
 
@@ -150,7 +154,8 @@ function postprocess(ast, options) {
             astType === "hermes" ||
             astType === "espree" ||
             astType === "typescript" ||
-            isOxcTs
+            astType === "oxc-ts" ||
+            astType === "yuku-ts"
           ) {
             const start = locStart(node) + 1;
             const end = locEnd(node) - (node.tail ? 1 : 2);

src/language-js/parse/yuku.js

@@ -4,6 +4,7 @@ import createError from "../../common/parser-create-error.js";
 import { tryCombinationsSync } from "../../utilities/try-combinations.js";
 import postprocess from "./postprocess/index.js";
 import createParser from "./utilities/create-parser.js";
+import jsxRegexp from "./utilities/jsx-regexp.evaluate.js";
 import {
   getSourceType,
   SOURCE_TYPE_COMBINATIONS,
@@ -45,8 +46,8 @@ function parseWithOptions(text, options) {
   });
 
   const { diagnostics: errors } = result;
-  for (const error of errors) {
-    throw createParseError(error, { text });
+  if (errors.length > 0) {
+    throw createParseError(errors[0], { text });
   }
 
   return result;
@@ -84,6 +85,62 @@ function parseJs(text, options) {
   return postprocess(ast, { text, astType: "yuku-js" });
 }
 
-const yuku = /* @__PURE__ */ createParser(parseJs);
+/**
+@returns {ParseOptions["lang"][]}
+*/
+function getLanguageCombinations(text, options) {
+  const filepath = options?.filepath;
 
-export { yuku };
+  if (typeof filepath === "string") {
+    if (/\.(?:jsx|tsx)$/i.test(filepath)) {
+      return ["tsx"];
+    }
+
+    if (filepath.toLowerCase().endsWith(".d.ts")) {
+      return ["dts"];
+    }
+  }
+
+  const shouldEnableJsx = jsxRegexp.test(text);
+  return shouldEnableJsx ? ["tsx", "ts", "dts"] : ["ts", "tsx", "dts"];
+}
+
+function parseTs(text, options) {
+  const filepath = options?.filepath;
+
+  const sourceType = getSourceType(filepath);
+  const languageCombinations = getLanguageCombinations(text, options);
+
+  const combinations = (
+    sourceType ? [sourceType] : SOURCE_TYPE_COMBINATIONS
+  ).flatMap((sourceType) =>
+    languageCombinations.map(
+      (lang) => () =>
+        parseWithOptions(text, {
+          sourceType: sourceType === "commonjs" ? "script" : sourceType,
+          lang,
+        }),
+    ),
+  );
+
+  let result;
+  try {
+    result = tryCombinationsSync(combinations);
+  } catch ({
+    // @ts-expect-error -- expected
+    errors: [error],
+  }) {
+    throw error;
+  }
+
+  const { program: ast, comments } = result;
+
+  // @ts-expect-error -- expected
+  ast.comments = comments;
+  return postprocess(ast, { text, astType: "yuku-ts" });
+}
+
+const yuku = /* @__PURE__ */ createParser(parseJs);
+const yukuTs = /* @__PURE__ */ createParser(parseTs);
+
+export { yukuTs as "yuku-ts", yuku };

src/language-js/print/key.js

@@ -22,7 +22,10 @@ function isSimpleNumber(numberString) {
 
 // TODO[@fisker]: `__vue_ts_expression` and `__vue_ts_event_binding`
 const isTypeScript = ({ parser }) =>
-  parser === "typescript" || parser === "babel-ts" || parser === "oxc-ts";
+  parser === "typescript" ||
+  parser === "babel-ts" ||
+  parser === "oxc-ts" ||
+  parser === "yuku-ts";
 
 /**
 @param {Node} node
@@ -106,7 +109,9 @@ function isKeySafeToUnquote(node, options) {
     // See https://github.com/microsoft/TypeScript/pull/20075
     !(
       (parser === "babel-ts" && node.type === "ClassProperty") ||
-      ((parser === "typescript" || parser === "oxc-ts") &&
+      ((parser === "typescript" ||
+        parser === "oxc-ts" ||
+        parser === "yuku-ts") &&
         node.type === "PropertyDefinition")
     ) &&
     isEs5IdentifierName(value)

src/main/plugins/builtin-plugins/development-plugins.js

@@ -80,6 +80,7 @@ export const plugins = /* @__PURE__ */ toLazyLoadPlugins(
       "oxc-ts",
       "typescript",
       "yuku",
+      "yuku-ts",
     ],
   },
   {

src/main/range.js

@@ -172,6 +172,7 @@ function isSourceElement(opts, node, parentNode) {
     case "oxc":
     case "oxc-ts":
     case "yuku":
+    case "yuku-ts":
     case "__babel_estree":
       return isJsSourceElement(node.type, parentNode?.type);
     case "json":

tests/config/format-test/failed-format-tests.js

@@ -90,6 +90,7 @@ const disabledTests = new Map(
     oxc: [],
     "oxc-ts": ["typescript/typescript-only/"],
     yuku: [],
+    "yuku-ts": ["typescript/typescript-only/"],
     hermes: [
       ...commentClosureTypecaseTests,
 

tests/config/format-test/get-parsers.js

@@ -21,7 +21,7 @@ function getParsers(dirname, parsers) {
   }
 
   if (parsers.includes("typescript")) {
-    addParsers("babel-ts", "oxc-ts");
+    addParsers("babel-ts", "oxc-ts", "yuku-ts");
   }
 
   if (parsers.includes("flow")) {

tests/config/format-test/verify-fixtures.js

@@ -68,6 +68,7 @@ const categoryParsers = new Map([
         "oxc",
         "oxc-ts",
         "yuku",
+        "yuku-ts",
         "flow",
         "babel-flow",
         "typescript",
@@ -104,6 +105,7 @@ const categoryParsers = new Map([
         "oxc",
         "oxc-ts",
         "yuku",
+        "yuku-ts",
       ],
       verifyParsers: [
         "babel",
@@ -120,6 +122,7 @@ const categoryParsers = new Map([
         "oxc",
         "oxc-ts",
         "yuku",
+        "yuku-ts",
       ],
       extensions: [".js", ".jsx"],
     },
@@ -149,8 +152,15 @@ const categoryParsers = new Map([
   [
     "typescript",
     {
-      parsers: ["typescript", "babel-ts", "oxc-ts"],
-      verifyParsers: ["typescript", "babel-ts", "flow", "babel-flow", "oxc-ts"],
+      parsers: ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
+      verifyParsers: [
+        "typescript",
+        "babel-ts",
+        "flow",
+        "babel-flow",
+        "oxc-ts",
+        "yuku-ts",
+      ],
       extensions: [".ts", ".tsx", ".cts", ".mts"],
     },
   ],

tests/format/flow/mapped-types/__snapshots__/format.test.js.snap

@@ -125,6 +125,17 @@ exports[`comments.js format[typescript] 1`] = `
 Cause: Property or signature expected."
 `;
 
+exports[`comments.js format[yuku-ts] 1`] = `
+"Unexpected token '+' as signature key (3:3)
+  1 | type Type = {
+  2 |   // comment
+> 3 |   +[T in number]: number;
+    |   ^
+  4 | };
+  5 |
+  6 | type Type = {"
+`;
+
 exports[`mapped-types.js format 1`] = `
 ====================================options=====================================
 parsers: ["flow", "typescript"]
@@ -229,6 +240,17 @@ exports[`mapped-types.js format[typescript] 1`] = `
 Cause: Property or signature expected."
 `;
 
+exports[`mapped-types.js format[yuku-ts] 1`] = `
+"Unexpected token '+' as signature key (5:28)
+  3 | type Mapped = {[key in keyof O]: O[key]};
+  4 | type MappedLong = {[key in keyof AReallyLongNameThatShouldReallyMostDefinitelyCauseALineWrap]: number};
+> 5 | type MappedWithVariance = {+[key in keyof O]: number};
+    |                            ^
+  6 | type MappedWithVarianceLong = {-[key in keyof AReallyLongNameThatShouldReallyMostDefinitelyCauseALineWrap]: number};
+  7 | type MappedWithPlusOptional = {[key in keyof O]+?: number};
+  8 | type MappedWithMinusOptional = {[key in keyof O]-?: number};"
+`;
+
 exports[`ts-compatibility.js format 1`] = `
 ====================================options=====================================
 parsers: ["flow", "typescript"]

tests/format/flow/mapped-types/format.test.js

@@ -3,5 +3,6 @@ runFormatTest(import.meta, ["flow", "typescript"], {
     "babel-ts": ["comments.js", "mapped-types.js"],
     typescript: ["comments.js", "mapped-types.js"],
     "oxc-ts": ["comments.js", "mapped-types.js"],
+    "yuku-ts": ["comments.js", "mapped-types.js"],
   },
 });

tests/format/js/_errors_/class-property-named-constructor/__snapshots__/format.test.js.snap

@@ -98,6 +98,14 @@ exports[`snippet: #0 format[yuku] 1`] = `
     | ^"
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | class Foo {
+  2 |   constructor
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #1 format[acorn] 1`] = `
 "Classes can't have a field named 'constructor' (2:3)
   1 | class Foo {
@@ -196,6 +204,14 @@ exports[`snippet: #1 format[yuku] 1`] = `
     | ^"
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | class Foo {
+  2 |   'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #2 format[acorn] 1`] = `
 "Classes can't have a field named 'constructor' (2:3)
   1 | class Foo {
@@ -294,6 +310,14 @@ exports[`snippet: #2 format[yuku] 1`] = `
     | ^"
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | class Foo {
+  2 |   'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #3 format[acorn] 1`] = `
 "Unexpected token (2:12)
   1 | class Foo {
@@ -392,6 +416,14 @@ exports[`snippet: #3 format[yuku] 1`] = `
     | ^"
 `;
 
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | class Foo {
+  2 |   accessor 'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #4 format[acorn] 1`] = `
 "Unexpected token (2:12)
   1 | class Foo {
@@ -490,6 +522,14 @@ exports[`snippet: #4 format[yuku] 1`] = `
     | ^"
 `;
 
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | class Foo {
+  2 |   accessor 'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #5 format[acorn] 1`] = `
 "Unexpected token (2:12)
   1 | class Foo {
@@ -587,3 +627,11 @@ exports[`snippet: #5 format[yuku] 1`] = `
 > 3 | }
     | ^"
 `;
+
+exports[`snippet: #5 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | class Foo {
+  2 |   accessor constructor
+> 3 | }
+    | ^"
+`;

tests/format/js/_errors_/class-property-named-constructor/format.test.js

@@ -15,6 +15,7 @@ runFormatTest(
     "oxc",
     "oxc-ts",
     "yuku",
+    "yuku-ts",
     "flow",
     "hermes",
   ],

tests/format/js/_errors_/discard-binding/__snapshots__/format.test.js.snap

@@ -89,6 +89,15 @@ exports[`invalid-array-expression.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`invalid-array-expression.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (1:9)
+> 1 | ([[[void], x, ], y]);
+    |         ^
+  2 |
+  3 | ([[[x], void, ], y]);
+  4 |"
+`;
+
 exports[`invalid-assignment-expression.js format[acorn] 1`] = `
 "Unexpected token (1:6)
 > 1 | void = 0;
@@ -160,6 +169,13 @@ exports[`invalid-assignment-expression.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-assignment-expression.js format[yuku-ts] 1`] = `
+"Unexpected token '=' (1:6)
+> 1 | void = 0;
+    |      ^
+  2 |"
+`;
+
 exports[`invalid-assignment-for.js format[acorn] 1`] = `
 "Unexpected token (1:15)
 > 1 | for (void of []);
@@ -231,6 +247,13 @@ exports[`invalid-assignment-for.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-assignment-for.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (1:15)
+> 1 | for (void of []);
+    |               ^
+  2 |"
+`;
+
 exports[`invalid-assignment-pattern.js format[acorn] 1`] = `
 "Unexpected keyword 'void' (3:14)
   1 | {
@@ -338,6 +361,17 @@ exports[`invalid-assignment-pattern.js format[yuku] 1`] = `
   6 |   // arrow function parameter"
 `;
 
+exports[`invalid-assignment-pattern.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (3:14)
+  1 | {
+  2 |   // function parameter
+> 3 |   function f(void = 0) {}
+    |              ^^^^
+  4 | }
+  5 | {
+  6 |   // arrow function parameter"
+`;
+
 exports[`invalid-async-call-argument.js format[acorn] 1`] = `
 "Unexpected token (1:11)
 > 1 | async(void, x);
@@ -427,6 +461,15 @@ exports[`invalid-async-call-argument.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`invalid-async-call-argument.js format[yuku-ts] 1`] = `
+"Unexpected token ',' (1:11)
+> 1 | async(void, x);
+    |           ^
+  2 |
+  3 | async(x, void);
+  4 |"
+`;
+
 exports[`invalid-catch-parameter.js format[acorn] 1`] = `
 "Unexpected keyword 'void' (1:15)
 > 1 | try {} catch (void) {}
@@ -498,6 +541,13 @@ exports[`invalid-catch-parameter.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-catch-parameter.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (1:15)
+> 1 | try {} catch (void) {}
+    |               ^^^^
+  2 |"
+`;
+
 exports[`invalid-lone-arrow-function-parameter.js format[acorn] 1`] = `
 "Unexpected token (1:6)
 > 1 | void => {}
@@ -569,6 +619,13 @@ exports[`invalid-lone-arrow-function-parameter.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-lone-arrow-function-parameter.js format[yuku-ts] 1`] = `
+"Unexpected token '=>' (1:6)
+> 1 | void => {}
+    |      ^^
+  2 |"
+`;
+
 exports[`invalid-lone-async-arrow-function-parameter.js format[acorn] 1`] = `
 "Unexpected token (1:7)
 > 1 | async void => {}
@@ -640,6 +697,13 @@ exports[`invalid-lone-async-arrow-function-parameter.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-lone-async-arrow-function-parameter.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as an identifier (1:7)
+> 1 | async void => {}
+    |       ^^^^
+  2 |"
+`;
+
 exports[`invalid-object-expression.js format[acorn] 1`] = `
 "Unexpected token (1:22)
 > 1 | ({ p: { p: { p: void }, x, }, y});
@@ -729,6 +793,15 @@ exports[`invalid-object-expression.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`invalid-object-expression.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (1:22)
+> 1 | ({ p: { p: { p: void }, x, }, y});
+    |                      ^
+  2 |
+  3 | ({ p: { x: { x }, p: void, }, y});
+  4 |"
+`;
+
 exports[`invalid-parenthesized-assignment.js format[acorn] 1`] = `
 "Unexpected token (1:7)
 > 1 | [(void)] = [];
@@ -800,6 +873,13 @@ exports[`invalid-parenthesized-assignment.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-parenthesized-assignment.js format[yuku-ts] 1`] = `
+"Unexpected token ')' (1:7)
+> 1 | [(void)] = [];
+    |       ^
+  2 |"
+`;
+
 exports[`invalid-parenthesized-binding.js format[acorn] 1`] = `
 "Unexpected token (1:10)
 > 1 | const [, (void), ] = value;
@@ -871,6 +951,13 @@ exports[`invalid-parenthesized-binding.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-parenthesized-binding.js format[yuku-ts] 1`] = `
+"Unexpected token ')' (1:15)
+> 1 | const [, (void), ] = value;
+    |               ^
+  2 |"
+`;
+
 exports[`invalid-rest-element-array-pattern.js format[acorn] 1`] = `
 "Unexpected keyword 'void' (2:12)
   1 | {
@@ -969,6 +1056,16 @@ exports[`invalid-rest-element-array-pattern.js format[yuku] 1`] = `
   5 |   for (var [...void] of [[]]);"
 `;
 
+exports[`invalid-rest-element-array-pattern.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (2:17)
+  1 | {
+> 2 |   var [ ...void ] = [];
+    |                 ^
+  3 | }
+  4 | {
+  5 |   for (var [...void] of [[]]);"
+`;
+
 exports[`invalid-rest-element-array-pattern-for-lhs.js format[acorn] 1`] = `
 "Unexpected token (1:16)
 > 1 | for ([ ...void ] of []);
@@ -1040,6 +1137,13 @@ exports[`invalid-rest-element-array-pattern-for-lhs.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-rest-element-array-pattern-for-lhs.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (1:16)
+> 1 | for ([ ...void ] of []);
+    |                ^
+  2 |"
+`;
+
 exports[`invalid-rest-element-array-pattern-lhs.js format[acorn] 1`] = `
 "Unexpected token (1:12)
 > 1 | ([ ...void ] = []);
@@ -1111,6 +1215,13 @@ exports[`invalid-rest-element-array-pattern-lhs.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-rest-element-array-pattern-lhs.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (1:12)
+> 1 | ([ ...void ] = []);
+    |            ^
+  2 |"
+`;
+
 exports[`invalid-rest-element-object-pattern.js format[acorn] 1`] = `
 "Unexpected keyword 'void' (2:12)
   1 | {
@@ -1209,6 +1320,16 @@ exports[`invalid-rest-element-object-pattern.js format[yuku] 1`] = `
   5 |   for (var { ...void } of [{}]);"
 `;
 
+exports[`invalid-rest-element-object-pattern.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (2:17)
+  1 | {
+> 2 |   var { ...void } = {};
+    |                 ^
+  3 | }
+  4 | {
+  5 |   for (var { ...void } of [{}]);"
+`;
+
 exports[`invalid-rest-element-object-pattern-for-lhs.js format[acorn] 1`] = `
 "Unexpected token (1:16)
 > 1 | for ({ ...void } of []);
@@ -1280,6 +1401,13 @@ exports[`invalid-rest-element-object-pattern-for-lhs.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-rest-element-object-pattern-for-lhs.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (1:16)
+> 1 | for ({ ...void } of []);
+    |                ^
+  2 |"
+`;
+
 exports[`invalid-rest-element-object-pattern-lhs.js format[acorn] 1`] = `
 "Unexpected token (1:12)
 > 1 | ({ ...void } = {});
@@ -1351,6 +1479,13 @@ exports[`invalid-rest-element-object-pattern-lhs.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`invalid-rest-element-object-pattern-lhs.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (1:12)
+> 1 | ({ ...void } = {});
+    |            ^
+  2 |"
+`;
+
 exports[`invalid-sequence-expression.js format[acorn] 1`] = `
 "Unexpected token (1:6)
 > 1 | (void, x);
@@ -1440,6 +1575,15 @@ exports[`invalid-sequence-expression.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`invalid-sequence-expression.js format[yuku-ts] 1`] = `
+"Unexpected token ',' (1:6)
+> 1 | (void, x);
+    |      ^
+  2 |
+  3 | (x, void);
+  4 |"
+`;
+
 exports[`invalid-variable-declarator.js format[acorn] 1`] = `
 "Unexpected keyword 'void' (2:7)
   1 | {
@@ -1537,3 +1681,13 @@ exports[`invalid-variable-declarator.js format[yuku] 1`] = `
   4 | {
   5 |   let void = f(), void = g();"
 `;
+
+exports[`invalid-variable-declarator.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (2:7)
+  1 | {
+> 2 |   var void = f();
+    |       ^^^^
+  3 | }
+  4 | {
+  5 |   let void = f(), void = g();"
+`;

tests/format/js/_errors_/discard-binding/format.test.js

@@ -7,5 +7,6 @@ runFormatTest(import.meta, [
   "oxc",
   "oxc-ts",
   "yuku",
+  "yuku-ts",
   "hermes",
 ]);

tests/format/js/_errors_/export-name/__snapshots__/format.test.js.snap

@@ -90,6 +90,12 @@ exports[`snippet: #0 format[yuku] 1`] = `
     |          ^^^^^^^^"
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"An export name cannot include a unicode lone surrogate (1:10)
+> 1 | import { "\\uD83C" as b } from "./foo";
+    |          ^^^^^^^^"
+`;
+
 exports[`snippet: #1 format[__babel_estree] 1`] = `
 "An export name cannot include a lone surrogate, found '\\ud83c'. (1:10)
 > 1 | export { "\\uD83C" } from "./foo";
@@ -180,6 +186,12 @@ exports[`snippet: #1 format[yuku] 1`] = `
     |          ^^^^^^^^"
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"An export name cannot include a unicode lone surrogate (1:10)
+> 1 | export { "\\uD83C" } from "./foo";
+    |          ^^^^^^^^"
+`;
+
 exports[`snippet: #2 format[__babel_estree] 1`] = `
 "An export name cannot include a lone surrogate, found '\\ud83c'. (1:10)
 > 1 | export { "\\uD83C" as b } from "./foo";
@@ -270,6 +282,12 @@ exports[`snippet: #2 format[yuku] 1`] = `
     |          ^^^^^^^^"
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"An export name cannot include a unicode lone surrogate (1:10)
+> 1 | export { "\\uD83C" as b } from "./foo";
+    |          ^^^^^^^^"
+`;
+
 exports[`snippet: #3 format[__babel_estree] 1`] = `
 "An export name cannot include a lone surrogate, found '\\ud83c'. (1:15)
 > 1 | export { b as "\\uD83C" } from "./foo";
@@ -359,3 +377,9 @@ exports[`snippet: #3 format[yuku] 1`] = `
 > 1 | export { b as "\\uD83C" } from "./foo";
     |               ^^^^^^^^"
 `;
+
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"An export name cannot include a unicode lone surrogate (1:15)
+> 1 | export { b as "\\uD83C" } from "./foo";
+    |               ^^^^^^^^"
+`;

tests/format/js/_errors_/export-name/format.test.js

@@ -23,5 +23,6 @@ runFormatTest(
     "oxc",
     "oxc-ts",
     "yuku",
+    "yuku-ts",
   ],
 );

tests/format/js/_errors_/reserved-word/__snapshots__/format.test.js.snap

@@ -90,6 +90,12 @@ exports[`snippet: #0 format[yuku] 1`] = `
     |        ^^^^^^^^^^"
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Keywords cannot contain escape characters (1:8)
+> 1 | export asyn\\u{63} from "async";
+    |        ^^^^^^^^^^"
+`;
+
 exports[`snippet: #1 format[acorn] 1`] = `
 "The keyword 'interface' is reserved (1:8)
 > 1 | import interface from "foo";

tests/format/js/_errors_/reserved-word/format.test.js

@@ -37,5 +37,6 @@ runFormatTest(
     "oxc",
     "oxc-ts",
     "yuku",
+    "yuku-ts",
   ],
 );

tests/format/js/arrows-bind/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/async-do-expressions/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/babel-plugins/format.test.js

@@ -130,6 +130,24 @@ runFormatTest(import.meta, ["babel", "babel-ts", "babel-flow"], {
       "v8intrinsic.js",
       "discard-binding.js",
     ],
+    "yuku-ts": [
+      "async-do-expressions.js",
+      "destructuring-private.js",
+      "do-expressions.js",
+      "export-default-from.js",
+      "flow.js",
+      "function-bind.js",
+      "function-sent.js",
+      "module-blocks.js",
+      "optional-chaining-assignment.js",
+      "partial-application.js",
+      "pipeline-operator-fsharp.js",
+      "pipeline-operator-hack.cjs",
+      "pipeline-operator-minimal.js",
+      "throw-expressions.js",
+      "v8intrinsic.js",
+      "discard-binding.js",
+    ],
     babel: ["flow.js", "typescript.js"],
     __babel_estree: ["flow.js", "typescript.js"],
   },

tests/format/js/bind-expressions/format.test.js

@@ -5,6 +5,7 @@ const errors = {
   oxc: true,
   "oxc-ts": true,
   yuku: true,
+  "yuku-ts": true,
 };
 
 runFormatTest(import.meta, ["babel"], { errors });

tests/format/js/call/invalid/format.test.js

@@ -8,5 +8,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/deferred-import-evaluation/__snapshots__/format.test.js.snap

@@ -74,13 +74,6 @@ exports[`dynamic-import-attributes-expression.js format[meriyah] 1`] = `
 Cause: [1:7-1:12]: The only valid meta property for import is 'import.meta'"
 `;
 
-exports[`dynamic-import-attributes-expression.js format[yuku] 1`] = `
-"Expected ')' after import(), but found ',' (1:17)
-> 1 | import.defer("x", { with: { attr: "val" } });
-    |                 ^
-  2 |"
-`;
-
 exports[`import-defer.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "typescript"]
@@ -237,6 +230,13 @@ exports[`no-default.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`no-default.js format[yuku-ts] 1`] = `
+"Expected 'from' after import clause, but found 'x' (1:14)
+> 1 | import defer x from "x";
+    |              ^
+  2 |"
+`;
+
 exports[`no-named.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "typescript"]
@@ -318,3 +318,10 @@ exports[`no-named.js format[yuku] 1`] = `
     |              ^
   2 |"
 `;
+
+exports[`no-named.js format[yuku-ts] 1`] = `
+"Expected 'from' after import clause, but found '{' (1:14)
+> 1 | import defer { x } from "x";
+    |              ^
+  2 |"
+`;

tests/format/js/deferred-import-evaluation/format.test.js

@@ -13,7 +13,8 @@ runFormatTest(import.meta, ["babel", "typescript"], {
     meriyah: [...importDeferTests, ...invalidSyntaxTests],
     oxc: invalidSyntaxTests,
     "oxc-ts": invalidSyntaxTests,
-    yuku: ["dynamic-import-attributes-expression.js", ...invalidSyntaxTests],
+    yuku: invalidSyntaxTests,
+    "yuku-ts": invalidSyntaxTests,
     babel: invalidSyntaxTests,
     "babel-ts": invalidSyntaxTests,
     __babel_estree: invalidSyntaxTests,

tests/format/js/destructuring-private-fields/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel", "babel-flow", "babel-ts"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/discard-binding/__snapshots__/format.test.js.snap

@@ -191,6 +191,17 @@ exports[`array-pattern.js format[yuku] 1`] = `
   6 |   // for-of destructuring binding"
 `;
 
+exports[`array-pattern.js format[yuku-ts] 1`] = `
+"Unexpected token ',' (3:16)
+  1 | {
+  2 |   // destructuring binding
+> 3 |   const [, void, ] = value;
+    |                ^
+  4 | }
+  5 | {
+  6 |   // for-of destructuring binding"
+`;
+
 exports[`basic.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -305,6 +316,15 @@ exports[`basic.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`basic.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (1:12)
+> 1 | const [void] = [,void] = [void,] = [];
+    |            ^
+  2 |
+  3 | function f(void, { p: void }, [ void ]) {}
+  4 |"
+`;
+
 exports[`discard-binding-arrow-params.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -389,6 +409,13 @@ exports[`discard-binding-arrow-params.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`discard-binding-arrow-params.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (1:2)
+> 1 | (void) => {}
+    |  ^^^^
+  2 |"
+`;
+
 exports[`discard-binding-assignment.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -473,6 +500,13 @@ exports[`discard-binding-assignment.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`discard-binding-assignment.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (1:7)
+> 1 | ([void] = []);
+    |       ^
+  2 |"
+`;
+
 exports[`discard-binding-async-arrow-params.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -557,6 +591,13 @@ exports[`discard-binding-async-arrow-params.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`discard-binding-async-arrow-params.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (1:8)
+> 1 | async (void) => {}
+    |        ^^^^
+  2 |"
+`;
+
 exports[`discard-binding-bindings.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -641,6 +682,13 @@ exports[`discard-binding-bindings.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`discard-binding-bindings.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (1:17)
+> 1 | const { p: void } = {};
+    |                 ^
+  2 |"
+`;
+
 exports[`discard-binding-for-await-using-binding.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -747,6 +795,15 @@ exports[`discard-binding-for-await-using-binding.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`discard-binding-for-await-using-binding.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (2:19)
+  1 | async () => {
+> 2 |   for(await using void of []);
+    |                   ^^^^
+  3 | }
+  4 |"
+`;
+
 exports[`discard-binding-for-bindings.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -831,6 +888,13 @@ exports[`discard-binding-for-bindings.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`discard-binding-for-bindings.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (1:21)
+> 1 | for(const { p: void } of []);
+    |                     ^
+  2 |"
+`;
+
 exports[`discard-binding-for-lhs.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -915,6 +979,13 @@ exports[`discard-binding-for-lhs.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`discard-binding-for-lhs.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (1:15)
+> 1 | for({ p: void } of []);
+    |               ^
+  2 |"
+`;
+
 exports[`discard-binding-for-using-binding.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1017,6 +1088,15 @@ exports[`discard-binding-for-using-binding.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`discard-binding-for-using-binding.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (2:13)
+  1 | {
+> 2 |   for(using void of []);
+    |             ^^^^
+  3 | }
+  4 |"
+`;
+
 exports[`function-parameter.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1177,6 +1257,17 @@ exports[`function-parameter.js format[yuku] 1`] = `
   6 |   // arrow function parameter"
 `;
 
+exports[`function-parameter.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (3:14)
+  1 | {
+  2 |   // function parameter
+> 3 |   function f(void) {}
+    |              ^^^^
+  4 | }
+  5 | {
+  6 |   // arrow function parameter"
+`;
+
 exports[`object-pattern.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1386,6 +1477,17 @@ exports[`object-pattern.js format[yuku] 1`] = `
   6 |   // for-of destructuring binding"
 `;
 
+exports[`object-pattern.js format[yuku-ts] 1`] = `
+"Unexpected token '}' (3:22)
+  1 | {
+  2 |   // destructuring binding
+> 3 |   const { void: void } = value;
+    |                      ^
+  4 | }
+  5 | {
+  6 |   // for-of destructuring binding"
+`;
+
 exports[`unary-expression-void.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1538,6 +1640,17 @@ exports[`unary-expression-void.js format[yuku] 1`] = `
   7 |     // pattern"
 `;
 
+exports[`unary-expression-void.js format[yuku-ts] 1`] = `
+"Unexpected token ']' (4:10)
+  2 | void [
+  3 |   // pattern
+> 4 |   [ void ] = [{
+    |          ^
+  5 |     // expr
+  6 |     [ void [] ]:
+  7 |     // pattern"
+`;
+
 exports[`using.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1659,6 +1772,16 @@ exports[`using.js format[yuku] 1`] = `
   5 |   await using void = f();"
 `;
 
+exports[`using.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (2:9)
+  1 | {
+> 2 |   using void = f();
+    |         ^^^^
+  3 | }
+  4 | async (void) => {
+  5 |   await using void = f();"
+`;
+
 exports[`using-variable-declarator.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1848,3 +1971,14 @@ exports[`using-variable-declarator.js format[yuku] 1`] = `
   5 | {
   6 |   // using 2 declarators"
 `;
+
+exports[`using-variable-declarator.js format[yuku-ts] 1`] = `
+"'void' is reserved and cannot be used as a binding identifier (3:9)
+  1 | {
+  2 |   // using 1 declarator
+> 3 |   using void = f();
+    |         ^^^^
+  4 | }
+  5 | {
+  6 |   // using 2 declarators"
+`;

tests/format/js/discard-binding/format.test.js

@@ -8,6 +8,7 @@ runFormatTest(import.meta, ["babel", "flow", "typescript"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
     hermes: true,
   },
 });

tests/format/js/do/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/explicit-resource-management/__snapshots__/format.test.js.snap

@@ -245,6 +245,16 @@ exports[`valid-await-expr-using.js format[yuku] 1`] = `
   5 |"
 `;
 
+exports[`valid-await-expr-using.js format[yuku-ts] 1`] = `
+"Expected a semicolon or an implicit semicolon after a statement, but found '+' (3:17)
+  1 | async function f() {
+  2 |   await using[x];
+> 3 |   await using.x + await using(x) ? await using?.x : await using\`x\`;
+    |                 ^
+  4 | }
+  5 |"
+`;
+
 exports[`valid-await-expr-using-in.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -283,6 +293,15 @@ exports[`valid-await-expr-using-in.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`valid-await-expr-using-in.js format[yuku-ts] 1`] = `
+"'in' is reserved and cannot be used as a binding identifier (2:15)
+  1 | async function f() {
+> 2 |   await using in foo;
+    |               ^^
+  3 | }
+  4 |"
+`;
+
 exports[`valid-await-expr-using-instanceof.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -321,6 +340,15 @@ exports[`valid-await-expr-using-instanceof.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`valid-await-expr-using-instanceof.js format[yuku-ts] 1`] = `
+"'instanceof' is reserved and cannot be used as a binding identifier (2:15)
+  1 | async function f() {
+> 2 |   await using instanceof foo;
+    |               ^^^^^^^^^^
+  3 | }
+  4 |"
+`;
+
 exports[`valid-await-using-asi-assignment.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -798,6 +826,15 @@ exports[`valid-module-block-top-level-await-using-binding.js format[yuku] 1`] =
   4 |"
 `;
 
+exports[`valid-module-block-top-level-await-using-binding.js format[yuku-ts] 1`] = `
+"Expected a semicolon or an implicit semicolon after a statement, but found '{' (1:18)
+> 1 | const m = module {
+    |                  ^
+  2 |   await using foo = bar();
+  3 | }
+  4 |"
+`;
+
 exports[`valid-module-block-top-level-using-binding.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -904,6 +941,15 @@ exports[`valid-module-block-top-level-using-binding.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`valid-module-block-top-level-using-binding.js format[yuku-ts] 1`] = `
+"Expected a semicolon or an implicit semicolon after a statement, but found '{' (1:8)
+> 1 | module {
+    |        ^
+  2 |   using foo = bar();
+  3 | }
+  4 |"
+`;
+
 exports[`valid-using-as-identifier-computed-member.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1001,6 +1047,15 @@ exports[`valid-using-as-identifier-for-in.js format[yuku] 1`] = `
   5 |"
 `;
 
+exports[`valid-using-as-identifier-for-in.js format[yuku-ts] 1`] = `
+"Unexpected token '\`\`' in binding pattern (4:11)
+  2 | for (using.foo in []);
+  3 | for (using().foo in []);
+> 4 | for (using\`\`.foo in []);
+    |           ^^
+  5 |"
+`;
+
 exports[`valid-using-as-identifier-for-init.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1025,6 +1080,15 @@ exports[`valid-using-as-identifier-for-init.js format[yuku] 1`] = `
   4 |"
 `;
 
+exports[`valid-using-as-identifier-for-init.js format[yuku-ts] 1`] = `
+"Unexpected token ';' in binding pattern (2:8)
+  1 | for (
+> 2 |   using;
+    |        ^
+  3 |   reader = getReader(););
+  4 |"
+`;
+
 exports[`valid-using-as-identifier-for-of.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1053,6 +1117,15 @@ exports[`valid-using-as-identifier-for-of.js format[yuku] 1`] = `
   5 |"
 `;
 
+exports[`valid-using-as-identifier-for-of.js format[yuku-ts] 1`] = `
+"Unexpected token '\`\`' in binding pattern (4:11)
+  2 | for (using.foo of of);
+  3 | for (using().foo of of);
+> 4 | for (using\`\`.foo of of);
+    |           ^^
+  5 |"
+`;
+
 exports[`valid-using-as-identifier-in.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -1083,6 +1156,13 @@ exports[`valid-using-as-identifier-in.js format[yuku] 1`] = `
   2 |"
 `;
 
+exports[`valid-using-as-identifier-in.js format[yuku-ts] 1`] = `
+"'in' is reserved and cannot be used as a binding identifier (1:7)
+> 1 | using in using instanceof using;
+    |       ^^
+  2 |"
+`;
+
 exports[`valid-using-binding-basic.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]

tests/format/js/explicit-resource-management/format.test.js

@@ -107,5 +107,18 @@ runFormatTest(import.meta, ["babel", "flow", "typescript"], {
       "valid-using-as-identifier-for-of.js",
       "valid-using-as-identifier-in.js",
     ],
+    "yuku-ts": [
+      // "invalid-duplicate-using-bindings.js",
+      // "invalid-script-top-level-using-binding.js",
+      "valid-module-block-top-level-using-binding.js",
+      "valid-module-block-top-level-await-using-binding.js",
+      "valid-await-expr-using-in.js",
+      "valid-await-expr-using-instanceof.js",
+      "valid-await-expr-using.js",
+      "valid-using-as-identifier-for-in.js",
+      "valid-using-as-identifier-for-init.js",
+      "valid-using-as-identifier-for-of.js",
+      "valid-using-as-identifier-in.js",
+    ],
   },
 });

tests/format/js/export-default/escaped/format.test.js

@@ -8,5 +8,6 @@ runFormatTest(import.meta, ["babel", "flow"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/export-default/export-default-from/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/for/__snapshots__/format.test.js.snap

@@ -928,6 +928,17 @@ exports[`for-in-with-initializer.js format[yuku] 1`] = `
   7 | for (var a = 1 || (() => b in c) in {});"
 `;
 
+exports[`for-in-with-initializer.js format[yuku-ts] 1`] = `
+"Expected ';' after for-loop init, but found ')' (4:33)
+  2 |
+  3 | for (var a = (b in c) in {});
+> 4 | for (var a = 1 || (b in c) in {});
+    |                                 ^
+  5 | for (var a = 1 + (2 || (b in c)) in {});
+  6 | for (var a = (() => b in c) in {});
+  7 | for (var a = 1 || (() => b in c) in {});"
+`;
+
 exports[`in.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]

tests/format/js/for/format.test.js

@@ -3,5 +3,6 @@ runFormatTest(import.meta, ["babel", "flow", "typescript"], {
     flow: ["parentheses.js", "for-in-with-initializer.js"],
     typescript: ["parentheses.js", "for-in-with-initializer.js"],
     yuku: ["for-in-with-initializer.js"],
+    "yuku-ts": ["for-in-with-initializer.js"],
   },
 });

tests/format/js/identifier/parentheses/__snapshots__/format.test.js.snap

@@ -252,15 +252,6 @@ a[1] + (let[2] = 2)
 ================================================================================
 `;
 
-exports[`let.js - {"semi":false} format[yuku] 1`] = `
-"Unexpected token '.' in binding pattern (1:4)
-> 1 | let.a = 1;
-    |    ^
-  2 |
-  3 | let.a[0] = 1;
-  4 |"
-`;
-
 exports[`let.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "typescript"]
@@ -484,12 +475,3 @@ a[1] + (let[2] = 2);
 
 ================================================================================
 `;
-
-exports[`let.js format[yuku] 1`] = `
-"Unexpected token '.' in binding pattern (1:4)
-> 1 | let.a = 1;
-    |    ^
-  2 |
-  3 | let.a[0] = 1;
-  4 |"
-`;

tests/format/js/identifier/parentheses/format.test.js

@@ -1,14 +1,8 @@
-const errors = { yuku: ["let.js"] };
-
-runFormatTest(
-  import.meta,
-  [
-    "babel",
-    //  "flow",
-    "typescript",
-  ],
-  { errors },
-);
+runFormatTest(import.meta, [
+  "babel",
+  //  "flow",
+  "typescript",
+]);
 runFormatTest(
   import.meta,
   [
@@ -16,5 +10,5 @@ runFormatTest(
     // "flow",
     "typescript",
   ],
-  { semi: false, errors },
+  { semi: false },
 );

tests/format/js/module-blocks/format.test.js

@@ -5,6 +5,7 @@ const errors = {
   oxc: ["module-blocks.js", "range.js", "comments.js"],
   "oxc-ts": ["module-blocks.js", "range.js", "comments.js"],
   yuku: ["module-blocks.js", "range.js", "comments.js"],
+  "yuku-ts": ["module-blocks.js", "range.js", "comments.js"],
 };
 
 runFormatTest(import.meta, ["babel"], { errors });

tests/format/js/module-blocks/quote-props/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: ["worker.js"],
     "oxc-ts": ["worker.js"],
     yuku: ["worker.js"],
+    "yuku-ts": ["worker.js"],
   },
 });

tests/format/js/multiparser-invalid/__snapshots__/format.test.js.snap

@@ -177,3 +177,14 @@ exports[`text.js format[yuku] 1`] = `
   8 |
   9 | foo = foo\`\\u{prettier}\${foo}pr\\u{0065}ttier\`;"
 `;
+
+exports[`text.js format[yuku-ts] 1`] = `
+"Bad escape sequence in untagged template literal (6:18)
+  4 | foo = markdown\`\\u{prettier}\\u{0065}\`;
+  5 | foo = css\`\\u{prettier}\\u{0065}\`;
+> 6 | foo = /* HTML */\`\\u{prettier}\\u{0065}\`;
+    |                  ^^^^^^^^^^^^^^^^^^^^
+  7 | foo = /* GraphQL */\`\\u{prettier}\\u{0065}\`;
+  8 |
+  9 | foo = foo\`\\u{prettier}\${foo}pr\\u{0065}ttier\`;"
+`;

tests/format/js/multiparser-invalid/format.test.js

@@ -9,5 +9,6 @@ runFormatTest(import.meta, ["babel", "flow", "typescript"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/no-semi-babylon-extensions/format.test.js

@@ -5,6 +5,7 @@ const errors = {
   oxc: true,
   "oxc-ts": true,
   yuku: true,
+  "yuku-ts": true,
 };
 runFormatTest(import.meta, ["babel"], { errors });
 runFormatTest(import.meta, ["babel"], { semi: false, errors });

tests/format/js/objects/__snapshots__/format.test.js.snap

@@ -234,6 +234,17 @@ exports[`expression.js format[yuku] 1`] = `
   8 | ({} = 0);"
 `;
 
+exports[`expression.js format[yuku-ts] 1`] = `
+"Expected ',' or ')' in parenthesized expression, but found ':' (5:4)
+  3 | a = () => ({}).x;
+  4 | ({} && a, b);
+> 5 | ({}::b, 0);
+    |    ^
+  6 | ({}::b()\`\`[''].c++ && 0 ? 0 : 0, 0);
+  7 | ({}(), 0);
+  8 | ({} = 0);"
+`;
+
 exports[`getter-setter.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "typescript", "flow"]

tests/format/js/objects/format.test.js

@@ -7,6 +7,7 @@ runFormatTest(import.meta, ["babel", "typescript", "flow"], {
     oxc: ["expression.js"],
     "oxc-ts": ["expression.js"],
     yuku: ["expression.js"],
+    "yuku-ts": ["expression.js"],
     flow: ["expression.js"],
     hermes: ["expression.js"],
   },

tests/format/js/optional-chaining-assignment/__snapshots__/format.test.js.snap

@@ -591,9 +591,9 @@ exports[`valid-complex-case.js format[oxc] 1`] = `
 `;
 
 exports[`valid-complex-case.js format[yuku] 1`] = `
-"Unexpected token '?.' in binding pattern (1:4)
+"Optional chaining is not allowed in assignment pattern (1:1)
 > 1 | let?.()[a] =1;
-    |    ^^
+    | ^^^^^^^^^^
   2 | let?.[a] = 1;
   3 |"
 `;

tests/format/js/optional-chaining-assignment/format.test.js

@@ -34,6 +34,7 @@ runFormatTest(import.meta, ["babel"], {
     oxc: [...optionalChainingAssignTests, ...invalidSyntaxTests],
     "oxc-ts": [...optionalChainingAssignTests, ...invalidSyntaxTests],
     yuku: [...optionalChainingAssignTests, ...invalidSyntaxTests],
+    "yuku-ts": [...optionalChainingAssignTests, ...invalidSyntaxTests],
     babel: invalidSyntaxTests,
     __babel_estree: invalidSyntaxTests,
   },

tests/format/js/partial-application/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/pipeline-operator/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/reserved-word/__snapshots__/format.test.js.snap

@@ -50,16 +50,6 @@ var let = "foo";
 ================================================================================
 `;
 
-exports[`let.js format[yuku] 1`] = `
-"Unexpected token '.' in binding pattern (2:4)
-  1 | foo.let;
-> 2 | let.foo;
-    |    ^
-  3 | new let();
-  4 | ({ let: "foo" });
-  5 | (let, "foo");"
-`;
-
 exports[`yield.js format 1`] = `
 ====================================options=====================================
 parsers: ["acorn", "espree", "meriyah", "babel"]

tests/format/js/reserved-word/format.test.js

@@ -1,3 +1 @@
-runFormatTest(import.meta, ["acorn", "espree", "meriyah", "babel"], {
-  errors: { yuku: ["let.js"] },
-});
+runFormatTest(import.meta, ["acorn", "espree", "meriyah", "babel"]);

tests/format/js/source-phase-imports/__snapshots__/format.test.js.snap

@@ -124,13 +124,6 @@ exports[`import-source-attributes-expression.js format[meriyah] 1`] = `
 Cause: [1:7-1:13]: The only valid meta property for import is 'import.meta'"
 `;
 
-exports[`import-source-attributes-expression.js format[yuku] 1`] = `
-"Expected ')' after import(), but found ',' (1:18)
-> 1 | import.source("x", { with: { attr: "val" } });
-    |                  ^
-  2 |"
-`;
-
 exports[`import-source-binding-from.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel"]

tests/format/js/source-phase-imports/format.test.js

@@ -15,11 +15,8 @@ runFormatTest(import.meta, ["babel"], {
     meriyah: [...importSourceTests, ...invalidSyntaxTests],
     oxc: invalidSyntaxTests,
     "oxc-ts": invalidSyntaxTests,
-    yuku: [
-      "import-source-attributes-expression.js",
-      "import-source-binding-from.js",
-      ...invalidSyntaxTests,
-    ],
+    yuku: ["import-source-binding-from.js", ...invalidSyntaxTests],
+    "yuku-ts": ["import-source-binding-from.js", ...invalidSyntaxTests],
     babel: invalidSyntaxTests,
     __babel_estree: invalidSyntaxTests,
   },

tests/format/js/throw_expressions/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/js/v8_intrinsic/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["babel"], {
     oxc: true,
     "oxc-ts": true,
     yuku: true,
+    "yuku-ts": true,
   },
 });

tests/format/typescript/conformance/classes/constructorDeclarations/constructorParameters/__snapshots__/format.test.js.snap

@@ -548,3 +548,12 @@ exports[`readonlyReadonly.ts format[oxc-ts] 1`] = `
   3 |     constructor(readonly readonly y: number) {}
   4 | }"
 `;
+
+exports[`readonlyReadonly.ts format[yuku-ts] 1`] = `
+"Expected ';' after class field, but found 'x' (2:23)
+  1 | class C {
+> 2 |     readonly readonly x: number;
+    |                       ^
+  3 |     constructor(readonly readonly y: number) {}
+  4 | }"
+`;

tests/format/typescript/conformance/classes/constructorDeclarations/constructorParameters/format.test.js

@@ -6,5 +6,6 @@ runFormatTest(import.meta, ["typescript"], {
       "constructorOverloadsWithDefaultValues.ts",
     ],
     "oxc-ts": ["readonlyInConstructorParameters.ts", "readonlyReadonly.ts"],
+    "yuku-ts": ["readonlyReadonly.ts"],
   },
 });

tests/format/typescript/conformance/types/functions/__snapshots__/format.test.js.snap

@@ -638,6 +638,16 @@ exports[`functionOverloadErrorsSyntax.ts format[oxc-ts] 1`] = `
   11 |"
 `;
 
+exports[`functionOverloadErrorsSyntax.ts format[yuku-ts] 1`] = `
+"Rest parameter must be the last parameter (9:25)
+   7 |
+   8 | //Function overload signature with rest param followed by non-optional parameter
+>  9 | function fn5(x: string, ...y: any[], z: string);
+     |                         ^^^^^^^^^^^^
+  10 | function fn5() { }
+  11 |"
+`;
+
 exports[`functionTypeTypeParameters.ts format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]

tests/format/typescript/conformance/types/functions/format.test.js

@@ -2,5 +2,6 @@ runFormatTest(import.meta, ["typescript"], {
   errors: {
     "babel-ts": ["functionOverloadErrorsSyntax.ts"],
     "oxc-ts": ["functionOverloadErrorsSyntax.ts"],
+    "yuku-ts": ["functionOverloadErrorsSyntax.ts"],
   },
 });

tests/format/typescript/error-recovery/__snapshots__/format.test.js.snap

@@ -83,6 +83,15 @@ exports[`index-signature.ts - {"trailingComma":"all"} format[oxc-ts] 1`] = `
   4 |   [a: string, b: string]: string;"
 `;
 
+exports[`index-signature.ts - {"trailingComma":"all"} format[yuku-ts] 1`] = `
+"Expected ':' after index signature parameters, but found '}' (1:26)
+> 1 | type A = { [key: string] };
+    |                          ^
+  2 |
+  3 | type TwoParams = {
+  4 |   [a: string, b: string]: string;"
+`;
+
 exports[`index-signature.ts - {"trailingComma":"es5"} format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]
@@ -166,6 +175,15 @@ exports[`index-signature.ts - {"trailingComma":"es5"} format[oxc-ts] 1`] = `
   4 |   [a: string, b: string]: string;"
 `;
 
+exports[`index-signature.ts - {"trailingComma":"es5"} format[yuku-ts] 1`] = `
+"Expected ':' after index signature parameters, but found '}' (1:26)
+> 1 | type A = { [key: string] };
+    |                          ^
+  2 |
+  3 | type TwoParams = {
+  4 |   [a: string, b: string]: string;"
+`;
+
 exports[`index-signature.ts format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]
@@ -248,6 +266,15 @@ exports[`index-signature.ts format[oxc-ts] 1`] = `
   4 |   [a: string, b: string]: string;"
 `;
 
+exports[`index-signature.ts format[yuku-ts] 1`] = `
+"Expected ':' after index signature parameters, but found '}' (1:26)
+> 1 | type A = { [key: string] };
+    |                          ^
+  2 |
+  3 | type TwoParams = {
+  4 |   [a: string, b: string]: string;"
+`;
+
 exports[`jsdoc_only_types.ts - {"trailingComma":"all"} format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]
@@ -295,6 +322,15 @@ exports[`jsdoc_only_types.ts - {"trailingComma":"all"} format[oxc-ts] 1`] = `
   4 | let d: string?;"
 `;
 
+exports[`jsdoc_only_types.ts - {"trailingComma":"all"} format[yuku-ts] 1`] = `
+"Expected a type, but found '*' (1:8)
+> 1 | let a: *;
+    |        ^
+  2 | function b(x: ?) {}
+  3 | let c: ?string;
+  4 | let d: string?;"
+`;
+
 exports[`jsdoc_only_types.ts - {"trailingComma":"es5"} format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]
@@ -342,6 +378,15 @@ exports[`jsdoc_only_types.ts - {"trailingComma":"es5"} format[oxc-ts] 1`] = `
   4 | let d: string?;"
 `;
 
+exports[`jsdoc_only_types.ts - {"trailingComma":"es5"} format[yuku-ts] 1`] = `
+"Expected a type, but found '*' (1:8)
+> 1 | let a: *;
+    |        ^
+  2 | function b(x: ?) {}
+  3 | let c: ?string;
+  4 | let d: string?;"
+`;
+
 exports[`jsdoc_only_types.ts format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]
@@ -387,3 +432,12 @@ exports[`jsdoc_only_types.ts format[oxc-ts] 1`] = `
   3 | let c: ?string;
   4 | let d: string?;"
 `;
+
+exports[`jsdoc_only_types.ts format[yuku-ts] 1`] = `
+"Expected a type, but found '*' (1:8)
+> 1 | let a: *;
+    |        ^
+  2 | function b(x: ?) {}
+  3 | let c: ?string;
+  4 | let d: string?;"
+`;

tests/format/typescript/error-recovery/format.test.js

@@ -1,6 +1,7 @@
 const errors = {
   "babel-ts": ["jsdoc_only_types.ts", "index-signature.ts"],
   "oxc-ts": ["jsdoc_only_types.ts", "index-signature.ts"],
+  "yuku-ts": ["jsdoc_only_types.ts", "index-signature.ts"],
 };
 runFormatTest(import.meta, ["typescript"], { errors });
 runFormatTest(import.meta, ["typescript"], { trailingComma: "es5", errors });

tests/format/typescript/trailing-comma/__snapshots__/format.test.js.snap

@@ -60,6 +60,129 @@ const f2 = <
 ================================================================================
 `;
 
+exports[`invalid.ts - {"trailingComma":"all"} format 1`] = `
+====================================options=====================================
+parsers: ["typescript"]
+trailingComma: "all"
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+const {
+  longKeySoThisWillGoOnMultipleLines,
+  longKeySoThisWillGoOnMultipleLines2,
+  longKeySoThisWillGoOnMultipleLines3,
+  ...rest,
+} = something;
+
+=====================================output=====================================
+const {
+  longKeySoThisWillGoOnMultipleLines,
+  longKeySoThisWillGoOnMultipleLines2,
+  longKeySoThisWillGoOnMultipleLines3,
+  ...rest
+} = something;
+
+================================================================================
+`;
+
+exports[`invalid.ts - {"trailingComma":"all"} format[yuku-ts] 1`] = `
+"Rest element cannot have a trailing comma in object destructuring. (1:7)
+> 1 | const {
+    |       ^
+> 2 |   longKeySoThisWillGoOnMultipleLines,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 3 |   longKeySoThisWillGoOnMultipleLines2,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 4 |   longKeySoThisWillGoOnMultipleLines3,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 5 |   ...rest,
+    | ^^^^^^^^^^
+> 6 | } = something;
+    | ^
+  7 |"
+`;
+
+exports[`invalid.ts - {"trailingComma":"es5"} format 1`] = `
+====================================options=====================================
+parsers: ["typescript"]
+trailingComma: "es5"
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+const {
+  longKeySoThisWillGoOnMultipleLines,
+  longKeySoThisWillGoOnMultipleLines2,
+  longKeySoThisWillGoOnMultipleLines3,
+  ...rest,
+} = something;
+
+=====================================output=====================================
+const {
+  longKeySoThisWillGoOnMultipleLines,
+  longKeySoThisWillGoOnMultipleLines2,
+  longKeySoThisWillGoOnMultipleLines3,
+  ...rest
+} = something;
+
+================================================================================
+`;
+
+exports[`invalid.ts - {"trailingComma":"es5"} format[yuku-ts] 1`] = `
+"Rest element cannot have a trailing comma in object destructuring. (1:7)
+> 1 | const {
+    |       ^
+> 2 |   longKeySoThisWillGoOnMultipleLines,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 3 |   longKeySoThisWillGoOnMultipleLines2,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 4 |   longKeySoThisWillGoOnMultipleLines3,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 5 |   ...rest,
+    | ^^^^^^^^^^
+> 6 | } = something;
+    | ^
+  7 |"
+`;
+
+exports[`invalid.ts - {"trailingComma":"none"} format 1`] = `
+====================================options=====================================
+parsers: ["typescript"]
+trailingComma: "none"
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+const {
+  longKeySoThisWillGoOnMultipleLines,
+  longKeySoThisWillGoOnMultipleLines2,
+  longKeySoThisWillGoOnMultipleLines3,
+  ...rest,
+} = something;
+
+=====================================output=====================================
+const {
+  longKeySoThisWillGoOnMultipleLines,
+  longKeySoThisWillGoOnMultipleLines2,
+  longKeySoThisWillGoOnMultipleLines3,
+  ...rest
+} = something;
+
+================================================================================
+`;
+
+exports[`invalid.ts - {"trailingComma":"none"} format[yuku-ts] 1`] = `
+"Rest element cannot have a trailing comma in object destructuring. (1:7)
+> 1 | const {
+    |       ^
+> 2 |   longKeySoThisWillGoOnMultipleLines,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 3 |   longKeySoThisWillGoOnMultipleLines2,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 4 |   longKeySoThisWillGoOnMultipleLines3,
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+> 5 |   ...rest,
+    | ^^^^^^^^^^
+> 6 | } = something;
+    | ^
+  7 |"
+`;
+
 exports[`trailing.ts - {"trailingComma":"all"} format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]
@@ -80,7 +203,7 @@ const {
   longKeySoThisWillGoOnMultipleLines,
   longKeySoThisWillGoOnMultipleLines2,
   longKeySoThisWillGoOnMultipleLines3,
-  ...rest,
+  ...rest
 } = something;
 
 =====================================output=====================================
@@ -123,7 +246,7 @@ const {
   longKeySoThisWillGoOnMultipleLines,
   longKeySoThisWillGoOnMultipleLines2,
   longKeySoThisWillGoOnMultipleLines3,
-  ...rest,
+  ...rest
 } = something;
 
 =====================================output=====================================
@@ -166,7 +289,7 @@ const {
   longKeySoThisWillGoOnMultipleLines,
   longKeySoThisWillGoOnMultipleLines2,
   longKeySoThisWillGoOnMultipleLines3,
-  ...rest,
+  ...rest
 } = something;
 
 =====================================output=====================================

tests/format/typescript/trailing-comma/format.test.js

@@ -1,3 +1,5 @@
-runFormatTest(import.meta, ["typescript"], { trailingComma: "all" });
-runFormatTest(import.meta, ["typescript"], { trailingComma: "es5" });
-runFormatTest(import.meta, ["typescript"], { trailingComma: "none" });
+const errors = { "yuku-ts": ["invalid.ts"] };
+
+runFormatTest(import.meta, ["typescript"], { trailingComma: "all", errors });
+runFormatTest(import.meta, ["typescript"], { trailingComma: "es5", errors });
+runFormatTest(import.meta, ["typescript"], { trailingComma: "none", errors });

tests/format/typescript/trailing-comma/invalid.ts

@@ -0,0 +1,6 @@
+const {
+  longKeySoThisWillGoOnMultipleLines,
+  longKeySoThisWillGoOnMultipleLines2,
+  longKeySoThisWillGoOnMultipleLines3,
+  ...rest,
+} = something;

tests/format/typescript/trailing-comma/trailing.ts

@@ -12,5 +12,5 @@ const {
   longKeySoThisWillGoOnMultipleLines,
   longKeySoThisWillGoOnMultipleLines2,
   longKeySoThisWillGoOnMultipleLines3,
-  ...rest,
+  ...rest
 } = something;

tests/format/typescript/type-parameters-arguments/__snapshots__/format.test.js.snap

@@ -565,6 +565,17 @@ exports[`const.ts format[oxc-ts] 1`] = `
   25 | interface L<in const T> {}"
 `;
 
+exports[`const.ts format[yuku-ts] 1`] = `
+"Type parameter modifiers must appear in the order 'const in out' (14:12)
+  12 | class B<const T extends U> {}
+  13 | class C<T, const U> {}
+> 14 | class D<in const T> {}
+     |            ^^^^^
+  15 | class E<const in T> {}
+  16 | (class <const T> {});
+  17 | (class <const T extends U> {});"
+`;
+
 exports[`constraints-and-default.ts format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]

tests/format/typescript/type-parameters-arguments/format.test.js

@@ -1,5 +1,6 @@
 runFormatTest(import.meta, ["typescript"], {
   errors: {
     "oxc-ts": ["const.ts"],
+    "yuku-ts": ["const.ts"],
   },
 });

tests/unit/builtin-plugins.js

@@ -49,6 +49,7 @@ test("builtin parsers", async () => {
       "vue",
       "yaml",
       "yuku",
+      "yuku-ts",
     ]
   `);
 });

website/playground/codeSamples.mjs

@@ -45,6 +45,7 @@ export default function getCodeSamples(parser) {
     case "typescript":
     case "babel-ts":
     case "oxc-ts":
+    case "yuku-ts":
       return [
         "interface MyInterface {",
         "  foo(): string,",

website/playground/panel/language.js

@@ -27,6 +27,7 @@ function getCodemirrorMode(parser) {
     case "typescript":
     case "hermes":
     case "oxc-ts":
+    case "yuku-ts":
       return "TSX";
 
     case "css":

yarn.lock

@@ -3061,89 +3061,89 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-darwin-arm64@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-darwin-arm64@npm:0.6.2"
+"@yuku-parser/binding-darwin-arm64@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-darwin-arm64@npm:0.6.3"
   conditions: os=darwin & cpu=arm64
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-darwin-x64@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-darwin-x64@npm:0.6.2"
+"@yuku-parser/binding-darwin-x64@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-darwin-x64@npm:0.6.3"
   conditions: os=darwin & cpu=x64
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-freebsd-x64@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-freebsd-x64@npm:0.6.2"
+"@yuku-parser/binding-freebsd-x64@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-freebsd-x64@npm:0.6.3"
   conditions: os=freebsd & cpu=x64
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-linux-arm-gnu@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-linux-arm-gnu@npm:0.6.2"
+"@yuku-parser/binding-linux-arm-gnu@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-linux-arm-gnu@npm:0.6.3"
   conditions: os=linux & cpu=arm & libc=glibc
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-linux-arm-musl@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-linux-arm-musl@npm:0.6.2"
+"@yuku-parser/binding-linux-arm-musl@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-linux-arm-musl@npm:0.6.3"
   conditions: os=linux & cpu=arm & libc=musl
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-linux-arm64-gnu@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-linux-arm64-gnu@npm:0.6.2"
+"@yuku-parser/binding-linux-arm64-gnu@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-linux-arm64-gnu@npm:0.6.3"
   conditions: os=linux & cpu=arm64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-linux-arm64-musl@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-linux-arm64-musl@npm:0.6.2"
+"@yuku-parser/binding-linux-arm64-musl@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-linux-arm64-musl@npm:0.6.3"
   conditions: os=linux & cpu=arm64 & libc=musl
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-linux-x64-gnu@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-linux-x64-gnu@npm:0.6.2"
+"@yuku-parser/binding-linux-x64-gnu@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-linux-x64-gnu@npm:0.6.3"
   conditions: os=linux & cpu=x64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-linux-x64-musl@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-linux-x64-musl@npm:0.6.2"
+"@yuku-parser/binding-linux-x64-musl@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-linux-x64-musl@npm:0.6.3"
   conditions: os=linux & cpu=x64 & libc=musl
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-win32-arm64@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-win32-arm64@npm:0.6.2"
+"@yuku-parser/binding-win32-arm64@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-win32-arm64@npm:0.6.3"
   conditions: os=win32 & cpu=arm64
   languageName: node
   linkType: hard
 
-"@yuku-parser/binding-win32-x64@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/binding-win32-x64@npm:0.6.2"
+"@yuku-parser/binding-win32-x64@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/binding-win32-x64@npm:0.6.3"
   conditions: os=win32 & cpu=x64
   languageName: node
   linkType: hard
 
-"@yuku-parser/wasm@npm:0.6.2":
-  version: 0.6.2
-  resolution: "@yuku-parser/wasm@npm:0.6.2"
+"@yuku-parser/wasm@npm:0.6.3":
+  version: 0.6.3
+  resolution: "@yuku-parser/wasm@npm:0.6.3"
   dependencies:
     "@yuku-toolchain/types": "npm:0.5.43"
-  checksum: 10/95b8aed6a90feb7da5fe7697d68877630306fc5656270d4f47ed739e1cb7ed85a165d0aaa7efd89e6c77fb1339689744281149afa97e663b4ff3a05acd33f2fa
+  checksum: 10/56205ac50ea77f11472b17b37dd9fed904ec8dfa4b9da598243c4727c34fc07855c675cc33b59117559ef422e14e5039f66b3f49aa89e2de39766e460443cdfd
   languageName: node
   linkType: hard
 
@@ -3537,18 +3537,18 @@ __metadata:
   languageName: node
   linkType: hard
 
-"browserslist@npm:4.28.5, browserslist@npm:^4.24.0, browserslist@npm:^4.25.2, browserslist@npm:^4.28.1, browserslist@npm:^4.28.4":
-  version: 4.28.5
-  resolution: "browserslist@npm:4.28.5"
+"browserslist@npm:4.28.6, browserslist@npm:^4.24.0, browserslist@npm:^4.25.2, browserslist@npm:^4.28.1, browserslist@npm:^4.28.4":
+  version: 4.28.6
+  resolution: "browserslist@npm:4.28.6"
   dependencies:
     baseline-browser-mapping: "npm:^2.10.42"
-    caniuse-lite: "npm:^1.0.30001800"
-    electron-to-chromium: "npm:^1.5.387"
-    node-releases: "npm:^2.0.50"
+    caniuse-lite: "npm:^1.0.30001803"
+    electron-to-chromium: "npm:^1.5.389"
+    node-releases: "npm:^2.0.51"
     update-browserslist-db: "npm:^1.2.3"
   bin:
     browserslist: cli.js
-  checksum: 10/40f5f3b160e003b86cf16d906029a274990dc3b6b824f913c141a11ace1f9664204f2d1e8388e5ddf0233b4759c5a171a5bb3f55256f72c9f0ca6ebba58fcc9a
+  checksum: 10/04c8c3ec37e067aa1773d21d9603b434cc10d3dee6a89f62bd05d3a7d60b30ddbca8f371f53735e5b798a82db0e0131bc78dea9c58b11affb9ce5675c9d8b67b
   languageName: node
   linkType: hard
 
@@ -3661,10 +3661,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"caniuse-lite@npm:^1.0.30001800":
-  version: 1.0.30001802
-  resolution: "caniuse-lite@npm:1.0.30001802"
-  checksum: 10/496fd430cf348fb175a794a641a525a7ecf332f7118133ba2faacc820f556f8e8a314aec7f422e0636ffc346525e33e3bf1ba520c3898ed70c380e41d00e534f
+"caniuse-lite@npm:^1.0.30001803":
+  version: 1.0.30001805
+  resolution: "caniuse-lite@npm:1.0.30001805"
+  checksum: 10/2ce6f5d200846218e136a89a40a071d1b976fe5cfc3fbc01acb73db02839d9bf7370b88efb23295823bb6c2355772b52469121ef987f85062165a4ec5859fdca
   languageName: node
   linkType: hard
 
@@ -4306,10 +4306,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"electron-to-chromium@npm:^1.5.387":
-  version: 1.5.387
-  resolution: "electron-to-chromium@npm:1.5.387"
-  checksum: 10/987c002c3a8e08b33977ae4130c7a67a7047c69120b1240cbaedd0a2b72e9a67d32c52d2644b521092dbb2ce058129690f77fd376e58d895cdba12a9eddea689
+"electron-to-chromium@npm:^1.5.389":
+  version: 1.5.391
+  resolution: "electron-to-chromium@npm:1.5.391"
+  checksum: 10/5fce9a850b5a7a382fa232ee7706b4b52c0c6d7a76299f3a045419920b6cec06e2cb7428857edcf1f1294bc569c32ff5704ce5c3619752ca1bf4d25c34899679
   languageName: node
   linkType: hard
 
@@ -7601,10 +7601,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"node-releases@npm:^2.0.50":
-  version: 2.0.50
-  resolution: "node-releases@npm:2.0.50"
-  checksum: 10/c40306176fc9d43d27b919034fab57ab0753448dfcabeb1ae669128d28f595fba4c329a269b2d7fa9bb7d5a6d2bda8b2bd8fe5e8446226bb809f448fec2e80fb
+"node-releases@npm:^2.0.51":
+  version: 2.0.51
+  resolution: "node-releases@npm:2.0.51"
+  checksum: 10/9d08dbc740bb2fa40b2234108dd9dec333d76b8dd22435ab10c9b1c7d8813885449ba36033b5303158d1ff8f66cc8db2d35a74eef42f4f65f540790cd377584b
   languageName: node
   linkType: hard
 
@@ -8321,13 +8321,13 @@ __metadata:
     "@typescript-eslint/parser": "npm:8.64.0"
     "@typescript-eslint/typescript-estree": "npm:8.64.0"
     "@typescript-eslint/visitor-keys": "npm:8.64.0"
-    "@yuku-parser/wasm": "npm:0.6.2"
+    "@yuku-parser/wasm": "npm:0.6.3"
     acorn: "npm:8.17.0"
     acorn-jsx: "npm:5.3.2"
     angular-estree-parser: "npm:15.5.0"
     angular-html-parser: "npm:10.11.0"
     base64-arraybuffer-es6: "npm:3.1.0"
-    browserslist: "npm:4.28.5"
+    browserslist: "npm:4.28.6"
     browserslist-to-esbuild: "npm:2.1.1"
     buffer: "npm:6.0.3"
     c8: "npm:11.0.0"
@@ -8452,7 +8452,7 @@ __metadata:
     yaml: "npm:2.9.0"
     yaml-test-suite: "npm:0.1.0"
     yaml-unist-parser: "npm:3.2.0"
-    yuku-parser: "npm:0.6.2"
+    yuku-parser: "npm:0.6.3"
   bin:
     prettier: ./bin/prettier.cjs
   languageName: unknown
@@ -10207,21 +10207,21 @@ __metadata:
   languageName: node
   linkType: hard
 
-"yuku-parser@npm:0.6.2":
-  version: 0.6.2
-  resolution: "yuku-parser@npm:0.6.2"
+"yuku-parser@npm:0.6.3":
+  version: 0.6.3
+  resolution: "yuku-parser@npm:0.6.3"
   dependencies:
-    "@yuku-parser/binding-darwin-arm64": "npm:0.6.2"
-    "@yuku-parser/binding-darwin-x64": "npm:0.6.2"
-    "@yuku-parser/binding-freebsd-x64": "npm:0.6.2"
-    "@yuku-parser/binding-linux-arm-gnu": "npm:0.6.2"
-    "@yuku-parser/binding-linux-arm-musl": "npm:0.6.2"
-    "@yuku-parser/binding-linux-arm64-gnu": "npm:0.6.2"
-    "@yuku-parser/binding-linux-arm64-musl": "npm:0.6.2"
-    "@yuku-parser/binding-linux-x64-gnu": "npm:0.6.2"
-    "@yuku-parser/binding-linux-x64-musl": "npm:0.6.2"
-    "@yuku-parser/binding-win32-arm64": "npm:0.6.2"
-    "@yuku-parser/binding-win32-x64": "npm:0.6.2"
+    "@yuku-parser/binding-darwin-arm64": "npm:0.6.3"
+    "@yuku-parser/binding-darwin-x64": "npm:0.6.3"
+    "@yuku-parser/binding-freebsd-x64": "npm:0.6.3"
+    "@yuku-parser/binding-linux-arm-gnu": "npm:0.6.3"
+    "@yuku-parser/binding-linux-arm-musl": "npm:0.6.3"
+    "@yuku-parser/binding-linux-arm64-gnu": "npm:0.6.3"
+    "@yuku-parser/binding-linux-arm64-musl": "npm:0.6.3"
+    "@yuku-parser/binding-linux-x64-gnu": "npm:0.6.3"
+    "@yuku-parser/binding-linux-x64-musl": "npm:0.6.3"
+    "@yuku-parser/binding-win32-arm64": "npm:0.6.3"
+    "@yuku-parser/binding-win32-x64": "npm:0.6.3"
     "@yuku-toolchain/types": "npm:0.5.43"
   dependenciesMeta:
     "@yuku-parser/binding-darwin-arm64":
@@ -10246,7 +10246,7 @@ __metadata:
       optional: true
     "@yuku-parser/binding-win32-x64":
       optional: true
-  checksum: 10/331c1cc68f4aed45cb7c914c12693b42cb5a2bfbd9f20663a1fa00bf6d2991e85982b0fcd5c7dc6c5077ce3d9b6a32c102155d85797e874d89b753182310bb1a
+  checksum: 10/a927674aa6a8791e4ab4ba899507b28ae89becbd16b5aa3e83b8baac4d25b79e3501a6e1491f9e7ab82118469ea838dad9ce6cee05a10e6a728133796cf184aa
   languageName: node
   linkType: hard