Merge branch 'main' into next

# Conflicts:
#	package.json
#	src/cli/index.js
#	tests/config/install-prettier.js
#	tests/format/yaml/block-literal/jsfmt.spec.js
#	tests/integration/__tests__/file-info.js
#	yarn.lock

.eslintrc.cjs

@@ -42,6 +42,9 @@ module.exports = {
       "error",
       // `!foo === bar` and `!foo !== bar`
       'BinaryExpression[operator=/^[!=]==$/] > UnaryExpression.left[operator="!"]',
+      // `(() => (foo ? bar : baz))()`
+      // TODO: Remove this when https://github.com/sindresorhus/eslint-plugin-unicorn/issues/1730 get implemented
+      'CallExpression[callee.type="ArrowFunctionExpression"][callee.body.type="ConditionalExpression"]',
     ],
     "no-return-await": "error",
     "no-unneeded-ternary": "error",

.github/workflows/mark-issue-duplicate.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ !github.event.issue.pull_request && startsWith(github.event.comment.body, 'Duplicate of ') }}
     steps:
-      - uses: actions-cool/issues-helper@v2.5.0
+      - uses: actions-cool/issues-helper@v3
         with:
           actions: "mark-duplicate"
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/prod-test.yml

@@ -37,7 +37,7 @@ jobs:
       # It should be the last step
       - name: Check Sizes
         if: ${{ github.event_name == 'pull_request' && startsWith(github.head_ref, 'dependabot/npm_and_yarn/') }}
-        uses: preactjs/compressed-size-action@2.3.0
+        uses: preactjs/compressed-size-action@2.4.0
         with:
           repo-token: "${{ secrets.GITHUB_TOKEN }}"
           pattern: "./dist/**/*"

changelog_unreleased/cli/10274.md

@@ -0,0 +1,12 @@
+#### Add `--no-plugin-search` to turn off plugin autoloading (#10274 by @fisker)
+
+To turn off plugin autoloading, use `--no-plugin-search` when using Prettier CLI or add `{ pluginSearchDirs: false }` to options in `prettier.format()` or to the config file.
+
+<!-- prettier-ignore -->
+```cli
+// Prettier stable
+$ prettier . --plugin-search-dir=a-dir-without-plugins
+
+// Prettier main
+$ prettier . --no-plugin-search
+```

changelog_unreleased/cli/12320.md

@@ -0,0 +1,3 @@
+#### Infer parser for `.swcrc` (#12320 by @sosukesuzuki)
+
+A [`.swcrc`](https://swc.rs/docs/configuration/swcrc) is handled using `json` parser.

changelog_unreleased/javascript/12241.md

@@ -0,0 +1,16 @@
+#### Support Unicode Set Notation proposal (#12241 by @fisker)
+
+Support [Stage 3 proposal Unicode Set Notation](https://github.com/tc39/proposal-regexp-set-notation/) via [Babel 7.17.0](https://babeljs.io/blog/2022/02/02/7.17.0).
+
+See [the release blog post of Babel v7.17.0](https://babeljs.io/blog/2022/02/02/7.17.0#regexp-set-notation-and-properties-of-strings-14125httpsgithubcombabelbabelpull14125) and [the README of this proposal](https://github.com/tc39/proposal-regexp-set-notation/) for details.
+
+<!-- prettier-ignore -->
+```jsx
+// Examples
+
+/[\p{Decimal_Number}--[0-9]]/v; // Non-ASCII decimal digits
+
+"Did you see the 👩🏿‍❤️‍💋‍👩🏾 emoji?".match(/\p{RGI_Emoji}/v). // ["👩🏿‍❤️‍💋‍👩🏾"]
+
+/[\r\n\q{\r\n|NEWLINE}]/v; // Matches \r, \n, \r\n or NEWLINE
+```

changelog_unreleased/javascript/12276.md

@@ -0,0 +1,15 @@
+#### Support destructuring private proposal (#12276 by @sosukesuzuki)
+
+Support [Stage 2 TC39 proposal destructuring private fields](https://github.com/tc39/proposal-destructuring-private) via [Babel 7.17](https://babeljs.io/blog/2022/02/02/7.17.0).
+
+<!-- prettier-ignore -->
+```jsx
+// Example
+class Foo {
+  constructor() {
+    console.log(this.#x); // => 1
+    const { #x: x } = this;
+    console.log(x); // => 1
+  }
+}
+```

changelog_unreleased/yaml/12305.md

@@ -0,0 +1,15 @@
+#### Fix unexpected deletion of block-literal lines which starts with U+3000 (#12305 by @Quramy)
+
+<!-- prettier-ignore -->
+```yaml
+# Input 
+block_with_ideographic_space: |
+  　line-content # This line starts with U+3000
+
+# Prettier stable
+block_with_ideographic_space: |
+
+// Prettier main
+block_with_ideographic_space: |
+  　line-content # This line starts with U+3000
+```

cspell.json

@@ -309,6 +309,7 @@
         "suchipi",
         "supertypes",
         "Supprimer",
+        "swcrc",
         "templating",
         "tempy",
         "testname",

docs/cli.md

@@ -200,3 +200,7 @@ $ prettier "**/*" --write --ignore-unknown
 ## `--no-error-on-unmatched-pattern`
 
 Prevent errors when pattern is unmatched.
+
+## `--no-plugin-search`
+
+Disable plugin autoloading.

docs/plugins.md

@@ -46,7 +46,7 @@ The paths that are provided to `pluginSearchDirs` will be searched for `@prettie
 
 Strings provided to `plugins` are ultimately passed to `require()`, so you can provide a module/package name, a path, or anything else `require()` takes. (`pluginSearchDirs` works the same way. That is, valid plugin paths that it finds are passed to `require()`.)
 
-Providing at least one path to `--plugin-search-dir`/`pluginSearchDirs` turns off plugin autoloading in the default directory (i.e. `node_modules` above `prettier` binary).
+To turn off plugin autoloading, use `--no-plugin-search` when using Prettier CLI or add `{ pluginSearchDirs: false }` to options in `prettier.format()` or to the config file.
 
 ## Official Plugins
 

package.json

@@ -25,10 +25,10 @@
   "dependencies": {
     "@angular/compiler": "12.2.16",
     "@babel/code-frame": "7.16.7",
-    "@babel/parser": "7.17.0",
-    "@glimmer/syntax": "0.83.1",
+    "@babel/parser": "7.17.3",
+    "@glimmer/syntax": "0.84.0",
     "@iarna/toml": "2.2.5",
-    "@typescript-eslint/typescript-estree": "5.10.2",
+    "@typescript-eslint/typescript-estree": "5.12.0",
     "acorn": "8.7.0",
     "acorn-jsx": "5.3.2",
     "angular-estree-parser": "2.5.0",
@@ -44,7 +44,7 @@
     "editorconfig": "0.15.3",
     "editorconfig-to-prettier": "0.2.0",
     "escape-string-regexp": "4.0.0",
-    "espree": "9.3.0",
+    "espree": "9.3.1",
     "esutils": "2.0.3",
     "fast-glob": "3.2.11",
     "fast-json-stable-stringify": "2.1.0",
@@ -57,7 +57,7 @@
     "html-tag-names": "1.1.5",
     "html-void-elements": "2.0.1",
     "ignore": "5.2.0",
-    "jest-docblock": "27.5.0",
+    "jest-docblock": "27.5.1",
     "json5": "2.2.0",
     "leven": "3.1.0",
     "lines-and-columns": "2.0.3",
@@ -65,7 +65,7 @@
     "lodash": "4.17.21",
     "mem": "9.0.2",
     "meriyah": "4.2.0",
-    "minimatch": "3.0.4",
+    "micromatch": "4.0.4",
     "minimist": "1.2.5",
     "n-readlines": "1.0.1",
     "outdent": "0.8.0",
@@ -93,39 +93,39 @@
     "yaml-unist-parser": "1.3.1"
   },
   "devDependencies": {
-    "@babel/core": "7.17.0",
+    "@babel/core": "7.17.5",
     "@babel/preset-env": "7.16.11",
     "@babel/types": "7.17.0",
     "@esbuild-plugins/node-modules-polyfill": "0.1.4",
-    "@glimmer/reference": "0.83.1",
+    "@glimmer/reference": "0.84.0",
     "@jest/globals": "27.4.2",
     "@prettier/jest-light-runner": "file:./tests/config/jest-light-runner",
-    "@types/estree": "0.0.50",
+    "@types/estree": "0.0.51",
     "@types/jest": "27.4.0",
-    "@typescript-eslint/eslint-plugin": "5.10.2",
-    "babel-jest": "27.5.0",
+    "@typescript-eslint/eslint-plugin": "5.12.0",
+    "babel-jest": "27.5.1",
     "benchmark": "2.1.4",
     "browserslist-to-esbuild": "1.1.1",
     "builtin-modules": "3.2.0",
     "cross-env": "7.0.3",
-    "cspell": "5.18.3",
+    "cspell": "5.18.5",
     "enquirer": "2.3.6",
-    "esbuild": "0.14.18",
+    "esbuild": "0.14.23",
     "esbuild-plugin-text-replace": "1.2.0",
     "esbuild-visualizer": "0.3.1",
-    "eslint": "8.8.0",
-    "eslint-config-prettier": "8.3.0",
+    "eslint": "8.9.0",
+    "eslint-config-prettier": "8.4.0",
     "eslint-formatter-friendly": "7.0.0",
     "eslint-plugin-compat": "4.0.2",
     "eslint-plugin-import": "2.25.4",
-    "eslint-plugin-jest": "26.0.0",
+    "eslint-plugin-jest": "26.1.1",
     "eslint-plugin-prettier-internal-rules": "2.0.1",
     "eslint-plugin-react": "7.28.0",
     "eslint-plugin-regexp": "1.5.1",
-    "eslint-plugin-unicorn": "40.1.0",
+    "eslint-plugin-unicorn": "41.0.0",
     "esm-utils": "3.0.0",
-    "execa": "6.0.0",
-    "jest": "27.5.0",
+    "execa": "6.1.0",
+    "jest": "27.5.1",
     "jest-snapshot-serializer-ansi": "1.0.0",
     "jest-snapshot-serializer-raw": "1.2.0",
     "jest-watch-typeahead": "1.0.0",
@@ -135,7 +135,7 @@
     "path-browserify": "1.0.1",
     "prettier": "2.5.1",
     "pretty-bytes": "5.6.0",
-    "read-pkg-up": "9.0.0",
+    "read-pkg-up": "9.1.0",
     "rimraf": "3.0.2",
     "rollup-plugin-license": "2.6.1",
     "snapshot-diff": "0.9.0",

scripts/build/build.mjs

@@ -179,18 +179,22 @@ async function preparePackage() {
 
 async function run(params) {
   params.files = params.file ? new Set([params.file].flat()) : params.file;
+  delete params.file;
+
   params.saveAs = params["save-as"];
+  delete params["save-as"];
+
   params.printSize = params["print-size"];
+  delete params["print-size"];
+
+  params.compareSize = params["compare-size"];
+  delete params["compare-size"];
 
   if (params.report === "") {
     params.report = ["html"];
   }
   params.reports = params.report ? [params.report].flat() : params.report;
-
-  delete params.file;
   delete params.report;
-  delete params["save-as"];
-  delete params["print-size"];
 
   if (params.saveAs && !(params.files && params.files.size === 1)) {
     throw new Error("'--save-as' can only use together with one '--file' flag");

scripts/release/package.json

@@ -14,7 +14,7 @@
     "string-width": "5.1.0"
   },
   "devDependencies": {
-    "@jest/globals": "27.5.0",
-    "jest": "27.5.0"
+    "@jest/globals": "27.5.1",
+    "jest": "27.5.1"
   }
 }

scripts/vendors/README.md

@@ -23,31 +23,31 @@ So we will put the files bundled with Pure ESM Packages as CommonJS Modules unde
 ### `/scripts/vendors/bundle-vendors.mjs`
 
 ```
-node ./scripts/vendors/bundle-vendors.mjs
+yarn vendors:bundle
 ```
 
 This script do the following 4 things:
 
 **1. Bundle ESM Packages to CommonJS**
 
-This bundles listed packages in `vendors.mjs` into `/vendors/*.js` as CommonJS.
+Bundles listed packages in `vendors.mjs` into `/vendors/*.js` as CommonJS.
 
-**2. Update `package.json`**
+**2. Lock vendor versions**
 
-This updates [`"imports"` in `package.json`](https://nodejs.org/api/packages.html#imports) to enables aliases to resolve packages put in `/vendors/*.js`.
+Locks versions of packages to `vendor-meta.json`. It is used to validate by `validate-vendor-versions.mjs`.
 
-**3. Lock ESM Packages version to `vendor-versions.json`**
+**3. Save vendors license info**
 
-This locks versions of packages that is bundled to `vendor-versions.json`. It is used to validate by `validate-vendor-versions.mjs`.
+Saves vendors licenses info to `vendor-meta.json`.
 
-**4. Generate `/vendors/types.d.ts`**
+**4. Generate `/vendors/*.d.ts`**
 
-This Generates a minimal type definition file that satisfies `lint:typecheck`.
+Generates a definition files that satisfies `lint:typecheck` for each vendors.
 
 ### `/scripts/vendors/validate-vendor-versions.mjs`
 
 ```
-node ./scripts/vendors/validate-vendor-versions.mjs
+yarn vendors:validate
 ```
 
 This script compares the version of packages locked in `vendor-versions.json` with the version of packages actually installed, and fails if they are different.

scripts/vendors/bundle-vendors.mjs

@@ -48,6 +48,24 @@ async function cleanExistsBundledJS() {
   }
 }
 
+async function generateDts(vendor) {
+  const hasDefault = await import(vendor).then((module) =>
+    Boolean(module.default)
+  );
+  await fs.writeFile(
+    path.join(vendorsDir, `${vendor}.d.ts`),
+    [
+      "// This file is generated automatically.",
+      hasDefault ? `export {default} from "${vendor}";` : null,
+      `export * from "${vendor}";`,
+      "",
+    ]
+      .filter((line) => line !== null)
+      .join("\n"),
+    "utf-8"
+  );
+}
+
 async function bundle(vendor, options) {
   const outfile = getVendorFilePath(vendor);
   if (await fileExists(outfile)) {
@@ -74,16 +92,7 @@ async function bundle(vendor, options) {
   };
   await esbuild.build(esbuildOption);
 
-  await fs.writeFile(
-    path.join(vendorsDir, `${vendor}.d.ts`),
-    [
-      "// This file is generated automatically.",
-      `export {default} from "${vendor}";`,
-      `export * from "${vendor}";`,
-      "",
-    ].join("\n"),
-    "utf-8"
-  );
+  await generateDts(vendor);
 }
 
 async function main() {

scripts/vendors/vendors.mjs

@@ -1,3 +1,3 @@
-const vendors = ["string-width", "mem"];
+const vendors = ["string-width", "mem", "execa", "tempy"];
 
 export default vendors;

src/cli/constant.js

@@ -202,6 +202,10 @@ const options = {
     default: "log",
     choices: ["silent", "error", "warn", "log", "debug"],
   },
+  "plugin-search": {
+    type: "boolean",
+    oppositeDescription: "Disable plugin autoloading.",
+  },
   "support-info": {
     type: "boolean",
     description: "Print support information as JSON.",

src/cli/index.js

@@ -7,6 +7,10 @@ import { createDetailedUsage, createUsage } from "./usage.js";
 import { formatStdin, formatFiles } from "./format.js";
 import logFileInfoOrDie from "./file-info.js";
 import logResolvedConfigPathOrDie from "./find-config-path.js";
+import prettierInternal from "./prettier-internal.js";
+const {
+  utils: { isNonEmptyArray },
+} = prettierInternal;
 
 async function run(rawArguments) {
   // Create a default level logger, so we can log errors during `logLevel` parsing
@@ -34,6 +38,18 @@ async function main(rawArguments, logger) {
 
   logger.debug(`normalized argv: ${JSON.stringify(context.argv)}`);
 
+  if (context.argv.pluginSearch === false) {
+    const rawPluginSearchDirs = context.argv.__raw["plugin-search-dir"];
+    if (
+      typeof rawPluginSearchDirs === "string" ||
+      isNonEmptyArray(rawPluginSearchDirs)
+    ) {
+      throw new Error(
+        "Cannot use --no-plugin-search and --plugin-search-dir together."
+      );
+    }
+  }
+
   if (context.argv.check && context.argv.listDifferent) {
     throw new Error("Cannot use --check and --list-different together.");
   }

src/cli/options/parse-cli-arguments.js

@@ -15,6 +15,10 @@ function parseArgv(rawArguments, detailedOptions, logger, keys) {
   let argv = minimist(rawArguments, minimistOptions);
 
   if (keys) {
+    if (keys.includes("plugin-search-dir") && !keys.includes("plugin-search")) {
+      keys.push("plugin-search");
+    }
+
     detailedOptions = detailedOptions.filter((option) =>
       keys.includes(option.name)
     );
@@ -26,7 +30,8 @@ function parseArgv(rawArguments, detailedOptions, logger, keys) {
     colorsModule: chalk,
   });
 
-  return Object.fromEntries(
+  return {
+    ...Object.fromEntries(
       Object.entries(normalized).map(([key, value]) => {
         const option = detailedOptions.find(({ name }) => name === key) || {};
         // If the flag is a prettier option, use the option name
@@ -35,10 +40,17 @@ function parseArgv(rawArguments, detailedOptions, logger, keys) {
         // `--ignore-unknown` -> `ignoreUnknown`
         return [option.forwardToApi || camelCase(key), value];
       })
-  );
+    ),
+    get __raw() {
+      return argv;
+    },
+  };
 }
 
-const detailedOptionsWithoutPlugins = getContextOptions().detailedOptions;
+const detailedOptionsWithoutPlugins = getContextOptions(
+  [],
+  false
+).detailedOptions;
 function parseArgvWithoutPlugins(rawArguments, logger, keys) {
   return parseArgv(
     rawArguments,

src/common/load-plugins.js

@@ -21,9 +21,11 @@ function load(plugins, pluginSearchDirs) {
     plugins = [];
   }
 
-  if (!pluginSearchDirs) {
+  if (pluginSearchDirs === false) {
     pluginSearchDirs = [];
-  }
+  } else {
+    pluginSearchDirs = pluginSearchDirs || [];
+
     // unless pluginSearchDirs are provided, auto-load plugins from node_modules that are parent to Prettier
     if (pluginSearchDirs.length === 0) {
       const autoLoadDir = thirdParty.findParentDir(__dirname, "node_modules");
@@ -31,6 +33,7 @@ function load(plugins, pluginSearchDirs) {
         pluginSearchDirs = [autoLoadDir];
       }
     }
+  }
 
   const [externalPluginNames, externalPluginInstances] = partition(
     plugins,

src/config/resolve-config.js

@@ -1,7 +1,7 @@
 "use strict";
 
 const path = require("path");
-const minimatch = require("minimatch");
+const micromatch = require("micromatch");
 const thirdParty = require("../common/third-party.js");
 
 const loadToml = require("../utils/load-toml.js");
@@ -165,18 +165,30 @@ function mergeOverrides(configResult, filePath) {
 }
 
 // Based on eslint: https://github.com/eslint/eslint/blob/master/lib/config/config-ops.js
-function pathMatchesGlobs(filePath, patterns, excludedPatterns = []) {
+function pathMatchesGlobs(filePath, patterns, excludedPatterns) {
   const patternList = Array.isArray(patterns) ? patterns : [patterns];
-  const excludedPatternList = Array.isArray(excludedPatterns)
-    ? excludedPatterns
-    : [excludedPatterns];
-  const opts = { matchBase: true, dot: true };
-
+  // micromatch always matches against basename when the option is enabled
+  // use only patterns without slashes with it to match minimatch behavior
+  const withSlashes = [];
+  const withoutSlashes = [];
+  for (const pattern of patternList) {
+    if (pattern.includes("/")) {
+      withSlashes.push(pattern);
+    } else {
+      withoutSlashes.push(pattern);
+    }
+  }
   return (
-    patternList.some((pattern) => minimatch(filePath, pattern, opts)) &&
-    !excludedPatternList.some((excludedPattern) =>
-      minimatch(filePath, excludedPattern, opts)
-    )
+    micromatch.isMatch(filePath, withoutSlashes, {
+      ignore: excludedPatterns,
+      basename: true,
+      dot: true,
+    }) ||
+    micromatch.isMatch(filePath, withSlashes, {
+      ignore: excludedPatterns,
+      basename: false,
+      dot: true,
+    })
   );
 }
 

src/index.js

@@ -80,6 +80,7 @@ const prettier = {
     utils: {
       arrayify: require("./utils/arrayify.js"),
       getLast: require("./utils/get-last.js"),
+      isNonEmptyArray: require("./common/util.js").isNonEmptyArray,
     },
   },
 

src/language-js/index.js

@@ -103,7 +103,7 @@ const languages = [
       since: "1.5.0",
       parsers: ["json"],
       vscodeLanguageIds: ["jsonc"],
-      filenames: [...data.filenames, ".eslintrc"],
+      filenames: [...data.filenames, ".eslintrc", ".swcrc"],
     })
   ),
   createLanguage(require("linguist-languages/data/JSON5.json"), () => ({

src/language-js/parse/babel.js

@@ -39,6 +39,7 @@ const parseOptions = {
     "moduleBlocks",
     "asyncDoExpressions",
     "regexpUnicodeSets",
+    "destructuringPrivate",
   ],
   tokens: true,
   ranges: true,

src/language-js/parse/meriyah.js

@@ -60,8 +60,21 @@ function parseWithOptions(text, module) {
 }
 
 function createParseError(error) {
-  // throw the error for `module` parsing
-  const { message, line, column } = error;
+  let { message, line, column } = error;
+
+  const matches = (
+    message.match(/^\[(?<line>\d+):(?<column>\d+)]: (?<message>.*)$/) || {}
+  ).groups;
+
+  if (matches) {
+    message = matches.message;
+
+    /* istanbul ignore next */
+    if (typeof line !== "number") {
+      line = Number(matches.line);
+      column = Number(matches.column);
+    }
+  }
 
   /* istanbul ignore next */
   if (typeof line !== "number") {

src/language-yaml/utils.js

@@ -251,12 +251,15 @@ function getBlockValueLineContents(
           // exclude open line `>` or `|`
           .match(/^[^\n]*\n(.*)$/s)[1];
 
-  const leadingSpaceCount =
-    node.indent === null
-      ? ((match) => (match ? match[1].length : Number.POSITIVE_INFINITY))(
-          content.match(/^( *)\S/m)
-        )
-      : node.indent - 1 + parentIndent;
+  let leadingSpaceCount;
+  if (node.indent === null) {
+    const matches = content.match(/^(?<leadingSpace> *)[^\n\r ]/m);
+    leadingSpaceCount = matches
+      ? matches.groups.leadingSpace.length
+      : Number.POSITIVE_INFINITY;
+  } else {
+    leadingSpaceCount = node.indent - 1 + parentIndent;
+  }
 
   const rawLineContents = content
     .split("\n")

src/main/options-normalizer.js

@@ -94,6 +94,10 @@ function normalizeOptions(
     hasDeprecationWarned = normalizer._hasDeprecationWarned;
   }
 
+  if (isCLI && normalized["plugin-search"] === false) {
+    normalized["plugin-search-dir"] = false;
+  }
+
   return normalized;
 }
 
@@ -123,8 +127,32 @@ function optionInfosToSchemas(optionInfos, { isCLI, colorsModule }) {
 }
 
 function optionInfoToSchema(optionInfo, { isCLI, optionInfos, colorsModule }) {
+  const { name } = optionInfo;
+
+  if (name === "plugin-search-dir" || name === "pluginSearchDirs") {
+    return vnopts.AnySchema.create({
+      name,
+      preprocess(value) {
+        if (value === false) {
+          return value;
+        }
+        value = Array.isArray(value) ? value : [value];
+        return value;
+      },
+      validate(value) {
+        if (value === false) {
+          return true;
+        }
+        return value.every((dir) => typeof dir === "string");
+      },
+      expected() {
+        return "false or paths to plugin search dir";
+      },
+    });
+  }
+
+  const parameters = { name };
   let SchemaConstructor;
-  const parameters = { name: optionInfo.name };
   const handlers = {};
 
   switch (optionInfo.type) {

tests/format/js/arrows-bind/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`arrows-bind.js [espree] format 1`] = `
 `;
 
 exports[`arrows-bind.js [meriyah] format 1`] = `
-"[1:9]: Expected ')' (1:9)
+"Expected ')' (1:9)
 > 1 | a => ({}::b()\`\`[''].c++ && 0 ? 0 : 0);
     |         ^
   2 | (a => b)::c;

tests/format/js/arrows/newline-before-arrow/__snapshots__/jsfmt.spec.js.snap

@@ -17,7 +17,7 @@ exports[`newline-before-arrow.js [espree] format 1`] = `
 `;
 
 exports[`newline-before-arrow.js [meriyah] format 1`] = `
-"[2:2]: No line break is allowed after '=>' (2:2)
+"No line break is allowed after '=>' (2:2)
   1 | async x
 > 2 | => x
     |  ^

tests/format/js/async-do-expressions/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`async-do-expressions.js [espree] format 1`] = `
 `;
 
 exports[`async-do-expressions.js [meriyah] format 1`] = `
-"[1:8]: Unexpected token: 'do' (1:8)
+"Unexpected token: 'do' (1:8)
 > 1 | async do {
     |        ^
   2 |   1;

tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap

@@ -15,7 +15,7 @@ exports[`async-do-expressions.js [espree] format 1`] = `
 `;
 
 exports[`async-do-expressions.js [meriyah] format 1`] = `
-"[1:8]: Unexpected token: 'do' (1:8)
+"Unexpected token: 'do' (1:8)
 > 1 | async do { await requestAPI().json() };
     |        ^
   2 |"
@@ -394,7 +394,7 @@ console.log(Bork.staticFunction()); // > "babelIsCool"
 `;
 
 exports[`class-static-block.js [meriyah] format 1`] = `
-"[4:10]: Unexpected token: '{' (4:10)
+"Unexpected token: '{' (4:10)
   2 |   static #x = 42;
   3 |   static y;
 > 4 |   static {
@@ -461,7 +461,7 @@ exports[`decimal.js [espree] format 1`] = `
 `;
 
 exports[`decimal.js [meriyah] format 1`] = `
-"[3:3]: No identifiers allowed directly after numeric literal (3:3)
+"No identifiers allowed directly after numeric literal (3:3)
   1 | // https://github.com/babel/babel/pull/11640
   2 |
 > 3 | 100m;
@@ -626,6 +626,75 @@ function enumerable(value) {
 ================================================================================
 `;
 
+exports[`destructuring-private.js [acorn] format 1`] = `
+"Unexpected token (5:13)
+  3 |   constructor() {
+  4 |     console.log(this.#x); // => 1
+> 5 |     const { #x: x } = this;
+    |             ^
+  6 |     console.log(x); // => 1
+  7 |   }
+  8 |   equals({ #x: otherX }) {"
+`;
+
+exports[`destructuring-private.js [espree] format 1`] = `
+"Unexpected token #x (5:13)
+  3 |   constructor() {
+  4 |     console.log(this.#x); // => 1
+> 5 |     const { #x: x } = this;
+    |             ^
+  6 |     console.log(x); // => 1
+  7 |   }
+  8 |   equals({ #x: otherX }) {"
+`;
+
+exports[`destructuring-private.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (5:13)
+  3 |   constructor() {
+  4 |     console.log(this.#x); // => 1
+> 5 |     const { #x: x } = this;
+    |             ^
+  6 |     console.log(x); // => 1
+  7 |   }
+  8 |   equals({ #x: otherX }) {"
+`;
+
+exports[`destructuring-private.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-ts", "babel-flow"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class Foo {
+  #x = 1;
+  constructor() {
+    console.log(this.#x); // => 1
+    const { #x: x } = this;
+    console.log(x); // => 1
+  }
+  equals({ #x: otherX }) {
+    const { #x: currentX } = this;
+    return currentX === otherX;
+  }
+}
+
+=====================================output=====================================
+class Foo {
+  #x = 1;
+  constructor() {
+    console.log(this.#x); // => 1
+    const { #x: x } = this;
+    console.log(x); // => 1
+  }
+  equals({ #x: otherX }) {
+    const { #x: currentX } = this;
+    return currentX === otherX;
+  }
+}
+
+================================================================================
+`;
+
 exports[`do-expressions.js [acorn] format 1`] = `
 "Unexpected token (3:9)
   1 | // https://babeljs.io/docs/en/babel-plugin-proposal-do-expressions
@@ -649,7 +718,7 @@ exports[`do-expressions.js [espree] format 1`] = `
 `;
 
 exports[`do-expressions.js [meriyah] format 1`] = `
-"[3:10]: Unexpected token: 'do' (3:10)
+"Unexpected token: 'do' (3:10)
   1 | // https://babeljs.io/docs/en/babel-plugin-proposal-do-expressions
   2 |
 > 3 | let a = do {
@@ -740,7 +809,7 @@ exports[`export-default-from.js [espree] format 1`] = `
 `;
 
 exports[`export-default-from.js [meriyah] format 1`] = `
-"[4:8]: Unexpected token: 'identifier' (4:8)
+"Unexpected token: 'identifier' (4:8)
   2 |
   3 |
 > 4 | export v from 'mod';
@@ -804,7 +873,7 @@ exports[`flow.js [espree] format 1`] = `
 `;
 
 exports[`flow.js [meriyah] format 1`] = `
-"[3:17]: Expected ')' (3:17)
+"Expected ')' (3:17)
   1 | // https://babeljs.io/docs/en/babel-preset-flow
   2 |
 > 3 | function foo(one: any, two: number, three?): string {}
@@ -853,7 +922,7 @@ exports[`function-bind.js [espree] format 1`] = `
 `;
 
 exports[`function-bind.js [meriyah] format 1`] = `
-"[3:5]: Unexpected token: ':' (3:5)
+"Unexpected token: ':' (3:5)
   1 | // https://babeljs.io/docs/en/babel-plugin-proposal-function-bind
   2 |
 > 3 | obj::func
@@ -931,7 +1000,7 @@ exports[`function-sent.js [espree] format 1`] = `
 `;
 
 exports[`function-sent.js [meriyah] format 1`] = `
-"[4:33]: Expected '(' (4:33)
+"Expected '(' (4:33)
   2 |
   3 | function* generator() {
 > 4 |     console.log(\\"Sent\\", function.sent);
@@ -988,7 +1057,7 @@ exports[`import-assertions-dynamic.js [espree] format 1`] = `
 `;
 
 exports[`import-assertions-dynamic.js [meriyah] format 1`] = `
-"[1:20]: Expected ')' (1:20)
+"Expected ')' (1:20)
 > 1 | import(\\"./foo.json\\", { assert: { type: \\"json\\" } });
     |                    ^
   2 |"
@@ -1023,7 +1092,7 @@ exports[`import-assertions-static.js [espree] format 1`] = `
 `;
 
 exports[`import-assertions-static.js [meriyah] format 1`] = `
-"[1:36]: Unexpected token: 'identifier' (1:36)
+"Unexpected token: 'identifier' (1:36)
 > 1 | import json from \\"./foo.json\\" assert { type: \\"json\\" };
     |                                    ^
   2 |"
@@ -1162,7 +1231,7 @@ exports[`module-blocks.js [espree] format 1`] = `
 `;
 
 exports[`module-blocks.js [meriyah] format 1`] = `
-"[1:16]: Unexpected token: '{' (1:16)
+"Unexpected token: '{' (1:16)
 > 1 | let m = module {
     |                ^
   2 |   export let m = 2;
@@ -1191,7 +1260,7 @@ let m = module {
 `;
 
 exports[`module-string-names.js [meriyah] format 1`] = `
-"[1:13]: Expected '}' (1:13)
+"Expected '}' (1:13)
 > 1 | import { \\"😄\\" as smile } from \\"./emojis.js\\";
     |             ^
   2 | export { smile as \\"😄\\" } from \\"./emojis.js\\";
@@ -1546,7 +1615,7 @@ exports[`partial-application.js [espree] format 1`] = `
 `;
 
 exports[`partial-application.js [meriyah] format 1`] = `
-"[5:23]: Unexpected token: '?' (5:23)
+"Unexpected token: '?' (5:23)
   3 | function add(x, y) { return x + y; }
   4 |
 > 5 | const addOne = add(1, ?); // apply from the left
@@ -1633,7 +1702,7 @@ exports[`pipeline-operator-fsharp.js [espree] format 1`] = `
 `;
 
 exports[`pipeline-operator-fsharp.js [meriyah] format 1`] = `
-"[5:4]: Unexpected token: '>' (5:4)
+"Unexpected token: '>' (5:4)
   3 |
   4 | promise
 > 5 |   |> await
@@ -1741,7 +1810,7 @@ exports[`pipeline-operator-hack.js [espree] format 1`] = `
 `;
 
 exports[`pipeline-operator-hack.js [meriyah] format 1`] = `
-"[5:3]: Unexpected token: '>' (5:3)
+"Unexpected token: '>' (5:3)
   3 |
   4 | return list
 > 5 |  |> take(prefix.length, %)
@@ -1800,7 +1869,7 @@ exports[`pipeline-operator-minimal.js [espree] format 1`] = `
 `;
 
 exports[`pipeline-operator-minimal.js [meriyah] format 1`] = `
-"[8:4]: Unexpected token: '>' (8:4)
+"Unexpected token: '>' (8:4)
    6 |
    7 | let result = \\"hello\\"
 >  8 |   |> doubleSay
@@ -2035,7 +2104,7 @@ exports[`record-tuple-record.js [espree] format 1`] = `
 `;
 
 exports[`record-tuple-record.js [meriyah] format 1`] = `
-"[1:17]: '#' not followed by identifier (1:17)
+"'#' not followed by identifier (1:17)
 > 1 | const record1 = #{
     |                 ^
   2 |     a: 1,
@@ -2084,7 +2153,7 @@ exports[`record-tuple-tuple.js [espree] format 1`] = `
 `;
 
 exports[`record-tuple-tuple.js [meriyah] format 1`] = `
-"[1:16]: '#' not followed by identifier (1:16)
+"'#' not followed by identifier (1:16)
 > 1 | const tuple1 = #[1, 2, 3];
     |                ^
   2 |"
@@ -2119,7 +2188,7 @@ exports[`regex-v-flag.js [espree] format 1`] = `
 `;
 
 exports[`regex-v-flag.js [meriyah] format 1`] = `
-"[1:3]: Unexpected regular expression flag (1:3)
+"Unexpected regular expression flag (1:3)
 > 1 | /a/v;
     |   ^
   2 |"
@@ -2162,7 +2231,7 @@ exports[`throw-expressions.js [espree] format 1`] = `
 `;
 
 exports[`throw-expressions.js [meriyah] format 1`] = `
-"[3:27]: Unexpected token: 'throw' (3:27)
+"Unexpected token: 'throw' (3:27)
   1 | // https://babeljs.io/docs/en/babel-plugin-proposal-throw-expressions
   2 |
 > 3 | function test(param = throw new Error('required!')) {
@@ -2213,7 +2282,7 @@ exports[`typescript.js [espree] format 1`] = `
 `;
 
 exports[`typescript.js [meriyah] format 1`] = `
-"[3:8]: Missing initializer in const declaration (3:8)
+"Missing initializer in const declaration (3:8)
   1 | // https://babeljs.io/docs/en/babel-preset-typescript
   2 |
 > 3 | const x: number = 0;
@@ -2262,7 +2331,7 @@ exports[`v8intrinsic.js [espree] format 1`] = `
 `;
 
 exports[`v8intrinsic.js [meriyah] format 1`] = `
-"[3:1]: Unexpected token: '%' (3:1)
+"Unexpected token: '%' (3:1)
   1 | // https://github.com/babel/babel/pull/10148
   2 |
 > 3 | %DebugPrint(foo);

tests/format/js/babel-plugins/destructuring-private.js

@@ -0,0 +1,12 @@
+class Foo {
+  #x = 1;
+  constructor() {
+    console.log(this.#x); // => 1
+    const { #x: x } = this;
+    console.log(x); // => 1
+  }
+  equals({ #x: otherX }) {
+    const { #x: currentX } = this;
+    return currentX === otherX;
+  }
+}

tests/format/js/babel-plugins/jsfmt.spec.js

@@ -6,6 +6,7 @@ run_spec(import.meta, ["babel", "babel-ts", "babel-flow"], {
     acorn: [
       "decimal.js",
       "decorators.js",
+      "destructuring-private.js",
       "do-expressions.js",
       "export-default-from.js",
       "flow.js",
@@ -29,6 +30,7 @@ run_spec(import.meta, ["babel", "babel-ts", "babel-flow"], {
     espree: [
       "decimal.js",
       "decorators.js",
+      "destructuring-private.js",
       "do-expressions.js",
       "export-default-from.js",
       "flow.js",
@@ -52,6 +54,7 @@ run_spec(import.meta, ["babel", "babel-ts", "babel-flow"], {
     meriyah: [
       "decimal.js",
       "do-expressions.js",
+      "destructuring-private.js",
       "export-default-from.js",
       "flow.js",
       "function-bind.js",

tests/format/js/bind-expressions/__snapshots__/jsfmt.spec.js.snap

@@ -21,7 +21,7 @@ exports[`await.js [espree] format 1`] = `
 `;
 
 exports[`await.js [meriyah] format 1`] = `
-"[3:27]: Unexpected token: ':' (3:27)
+"Unexpected token: ':' (3:27)
   1 | const doBothThings = async () => {
   2 |     const request = doAsyncThing();
 > 3 |     return (await request)::doSyncThing();
@@ -51,7 +51,7 @@ exports[`await.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`await.js - {"semi":false} [meriyah] format 1`] = `
-"[3:27]: Unexpected token: ':' (3:27)
+"Unexpected token: ':' (3:27)
   1 | const doBothThings = async () => {
   2 |     const request = doAsyncThing();
 > 3 |     return (await request)::doSyncThing();
@@ -120,7 +120,7 @@ exports[`bind_parens.js [espree] format 1`] = `
 `;
 
 exports[`bind_parens.js [meriyah] format 1`] = `
-"[1:9]: Unexpected token: ':' (1:9)
+"Unexpected token: ':' (1:9)
 > 1 | (a || b)::c;
     |         ^
   2 | a || (b::c);
@@ -147,7 +147,7 @@ exports[`bind_parens.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`bind_parens.js - {"semi":false} [meriyah] format 1`] = `
-"[1:9]: Unexpected token: ':' (1:9)
+"Unexpected token: ':' (1:9)
 > 1 | (a || b)::c;
     |         ^
   2 | a || (b::c);
@@ -339,7 +339,7 @@ exports[`long_name_method.js [espree] format 1`] = `
 `;
 
 exports[`long_name_method.js [meriyah] format 1`] = `
-"[3:54]: Unexpected token: ':' (3:54)
+"Unexpected token: ':' (3:54)
   1 | class X {
   2 |   constructor() {
 > 3 |     this.testLongNameMethodAndSomethingElseLallala = ::this.testLongNameMethodAndSomethingElseLallala;
@@ -372,7 +372,7 @@ exports[`long_name_method.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`long_name_method.js - {"semi":false} [meriyah] format 1`] = `
-"[3:54]: Unexpected token: ':' (3:54)
+"Unexpected token: ':' (3:54)
   1 | class X {
   2 |   constructor() {
 > 3 |     this.testLongNameMethodAndSomethingElseLallala = ::this.testLongNameMethodAndSomethingElseLallala;
@@ -466,7 +466,7 @@ exports[`method_chain.js [espree] format 1`] = `
 `;
 
 exports[`method_chain.js [meriyah] format 1`] = `
-"[10:9]: Unexpected token: ':' (10:9)
+"Unexpected token: ':' (10:9)
    8 | function test(observable) {
    9 |     return observable
 > 10 |         ::filter(data => data.someTest)
@@ -499,7 +499,7 @@ exports[`method_chain.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`method_chain.js - {"semi":false} [meriyah] format 1`] = `
-"[10:9]: Unexpected token: ':' (10:9)
+"Unexpected token: ':' (10:9)
    8 | function test(observable) {
    9 |     return observable
 > 10 |         ::filter(data => data.someTest)
@@ -625,7 +625,7 @@ exports[`short_name_method.js [espree] format 1`] = `
 `;
 
 exports[`short_name_method.js [meriyah] format 1`] = `
-"[3:24]: Unexpected token: ':' (3:24)
+"Unexpected token: ':' (3:24)
   1 | class X {
   2 |   constructor() {
 > 3 |     this.shortMethod = ::this.shortMethod;
@@ -658,7 +658,7 @@ exports[`short_name_method.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`short_name_method.js - {"semi":false} [meriyah] format 1`] = `
-"[3:24]: Unexpected token: ':' (3:24)
+"Unexpected token: ':' (3:24)
   1 | class X {
   2 |   constructor() {
 > 3 |     this.shortMethod = ::this.shortMethod;
@@ -746,7 +746,7 @@ exports[`unary.js [espree] format 1`] = `
 `;
 
 exports[`unary.js [meriyah] format 1`] = `
-"[1:3]: Unexpected token: ':' (1:3)
+"Unexpected token: ':' (1:3)
 > 1 | !x::y;
     |   ^
   2 | !(x::y /* foo */);
@@ -773,7 +773,7 @@ exports[`unary.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`unary.js - {"semi":false} [meriyah] format 1`] = `
-"[1:3]: Unexpected token: ':' (1:3)
+"Unexpected token: ':' (1:3)
 > 1 | !x::y;
     |   ^
   2 | !(x::y /* foo */);

tests/format/js/call/invalid/__snapshots__/jsfmt.spec.js.snap

@@ -37,7 +37,7 @@ exports[`null-arguments-item.js [espree] format 1`] = `
 `;
 
 exports[`null-arguments-item.js [meriyah] format 1`] = `
-"[1:11]: Unexpected token: ',' (1:11)
+"Unexpected token: ',' (1:11)
 > 1 | foor('a', , 'b');
     |           ^
   2 | foo('looooooooooooooooooooooooooooooooooooooooooooooong', , 'looooooooooooooooooooooooooooooooooooooooooooooong');

tests/format/js/class-static-block/__snapshots__/jsfmt.spec.js.snap

@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`class-static-block.js [meriyah] format 1`] = `
-"[4:10]: Unexpected token: '{' (4:10)
+"Unexpected token: '{' (4:10)
   2 |   static #x = 42;
   3 |   static y;
 > 4 |   static {
@@ -80,7 +80,7 @@ class A2 {
 `;
 
 exports[`with-line-breaks.js [meriyah] format 1`] = `
-"[3:3]: Unexpected token: '{' (3:3)
+"Unexpected token: '{' (3:3)
   1 | class Foo {
   2 |   static
 > 3 |   {

tests/format/js/classes-private-fields/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`optional-chaining.js [espree] format 1`] = `
 `;
 
 exports[`optional-chaining.js [meriyah] format 1`] = `
-"[3:13]: Dot property must be an identifier (3:13)
+"Dot property must be an identifier (3:13)
   1 | // https://github.com/babel/babel/pull/11669
   2 |
 > 3 | delete obj?.#x.a
@@ -46,7 +46,7 @@ exports[`optional-chaining.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`optional-chaining.js - {"semi":false} [meriyah] format 1`] = `
-"[3:13]: Dot property must be an identifier (3:13)
+"Dot property must be an identifier (3:13)
   1 | // https://github.com/babel/babel/pull/11669
   2 |
 > 3 | delete obj?.#x.a

tests/format/js/classes/top-level-super/__snapshots__/jsfmt.spec.js.snap

@@ -15,7 +15,7 @@ exports[`example.js [espree] format 1`] = `
 `;
 
 exports[`example.js [meriyah] format 1`] = `
-"[1:6]: Calls to super must be in the \\"constructor\\" method of a class expression or class declaration that has a superclass (1:6)
+"Calls to super must be in the \\"constructor\\" method of a class expression or class declaration that has a superclass (1:6)
 > 1 | super();
     |      ^
   2 |"

tests/format/js/comments-pipeline-own-line/__snapshots__/jsfmt.spec.js.snap

@@ -23,7 +23,7 @@ exports[`pipeline_own_line.js [espree] format 1`] = `
 `;
 
 exports[`pipeline_own_line.js [meriyah] format 1`] = `
-"[4:3]: Unexpected token: '>' (4:3)
+"Unexpected token: '>' (4:3)
   2 | 	0
   3 | 	// Comment
 > 4 | 	|> x

tests/format/js/decorator-comments/__snapshots__/jsfmt.spec.js.snap

@@ -21,7 +21,7 @@ exports[`comments.js [espree] format 1`] = `
 `;
 
 exports[`comments.js [meriyah] format 1`] = `
-"[4:20]: Unexpected token: ':' (4:20)
+"Unexpected token: ':' (4:20)
   2 |     @Annotateme()
   3 |     // comment
 > 4 |     static property: Array<string>;

tests/format/js/decorators-export/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`after_export.js [espree] format 1`] = `
 `;
 
 exports[`after_export.js [meriyah] format 1`] = `
-"[1:8]: Unexpected token: '@' (1:8)
+"Unexpected token: '@' (1:8)
 > 1 | export @decorator class Foo {}
     |        ^
   2 |

tests/format/js/decorators/__snapshots__/jsfmt.spec.js.snap

@@ -287,7 +287,7 @@ exports[`mobx.js [espree] format 1`] = `
 `;
 
 exports[`mobx.js [meriyah] format 1`] = `
-"[4:20]: Unexpected token: ':' (4:20)
+"Unexpected token: ':' (4:20)
   2 |
   3 | @observer class OrderLine {
 > 4 |   @observable price:number = 0;
@@ -471,7 +471,7 @@ exports[`multiple.js [espree] format 1`] = `
 `;
 
 exports[`multiple.js [meriyah] format 1`] = `
-"[2:3]: Unexpected token: '@' (2:3)
+"Unexpected token: '@' (2:3)
   1 | const dog = {
 > 2 |   @readonly
     |   ^

tests/format/js/destructuring-private-fields/__snapshots__/jsfmt.spec.js.snap

@@ -0,0 +1,395 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`arrow-params.js [acorn] format 1`] = `
+"Unexpected token (3:11)
+  1 | class C {
+  2 |   #x = 1;
+> 3 |   #p = ({ #x: x }) => {}
+    |           ^
+  4 | }
+  5 |"
+`;
+
+exports[`arrow-params.js [espree] format 1`] = `
+"Unexpected token #x (3:11)
+  1 | class C {
+  2 |   #x = 1;
+> 3 |   #p = ({ #x: x }) => {}
+    |           ^
+  4 | }
+  5 |"
+`;
+
+exports[`arrow-params.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (3:11)
+  1 | class C {
+  2 |   #x = 1;
+> 3 |   #p = ({ #x: x }) => {}
+    |           ^
+  4 | }
+  5 |"
+`;
+
+exports[`arrow-params.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  #x = 1;
+  #p = ({ #x: x }) => {}
+}
+
+=====================================output=====================================
+class C {
+  #x = 1;
+  #p = ({ #x: x }) => {};
+}
+
+================================================================================
+`;
+
+exports[`assignment.js [acorn] format 1`] = `
+"Unexpected token (5:8)
+  3 |   m() {
+  4 |     let x;
+> 5 |     ({ #x: x } = this);
+    |        ^
+  6 |   }
+  7 | }
+  8 |"
+`;
+
+exports[`assignment.js [espree] format 1`] = `
+"Unexpected token #x (5:8)
+  3 |   m() {
+  4 |     let x;
+> 5 |     ({ #x: x } = this);
+    |        ^
+  6 |   }
+  7 | }
+  8 |"
+`;
+
+exports[`assignment.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (5:8)
+  3 |   m() {
+  4 |     let x;
+> 5 |     ({ #x: x } = this);
+    |        ^
+  6 |   }
+  7 | }
+  8 |"
+`;
+
+exports[`assignment.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  #x = 1;
+  m() {
+    let x;
+    ({ #x: x } = this);
+  }
+}
+
+=====================================output=====================================
+class C {
+  #x = 1;
+  m() {
+    let x;
+    ({ #x: x } = this);
+  }
+}
+
+================================================================================
+`;
+
+exports[`async-arrow-params.js [acorn] format 1`] = `
+"Unexpected token (3:17)
+  1 | class C {
+  2 |   #x = 1;
+> 3 |   #p = async ({ #x: x }) => {}
+    |                 ^
+  4 | }
+  5 |"
+`;
+
+exports[`async-arrow-params.js [espree] format 1`] = `
+"Unexpected token #x (3:17)
+  1 | class C {
+  2 |   #x = 1;
+> 3 |   #p = async ({ #x: x }) => {}
+    |                 ^
+  4 | }
+  5 |"
+`;
+
+exports[`async-arrow-params.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (3:17)
+  1 | class C {
+  2 |   #x = 1;
+> 3 |   #p = async ({ #x: x }) => {}
+    |                 ^
+  4 | }
+  5 |"
+`;
+
+exports[`async-arrow-params.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  #x = 1;
+  #p = async ({ #x: x }) => {}
+}
+
+=====================================output=====================================
+class C {
+  #x = 1;
+  #p = async ({ #x: x }) => {};
+}
+
+================================================================================
+`;
+
+exports[`bindings.js [acorn] format 1`] = `
+"Unexpected token (4:12)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {#x: x} = this;
+    |            ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`bindings.js [espree] format 1`] = `
+"Unexpected token #x (4:12)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {#x: x} = this;
+    |            ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`bindings.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (4:12)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {#x: x} = this;
+    |            ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`bindings.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  #x = 1;
+  m() {
+    const {#x: x} = this;
+  }
+}
+
+=====================================output=====================================
+class C {
+  #x = 1;
+  m() {
+    const { #x: x } = this;
+  }
+}
+
+================================================================================
+`;
+
+exports[`for-lhs.js [acorn] format 1`] = `
+"Unexpected token (5:11)
+  3 |   m() {
+  4 |     let x;
+> 5 |     for ({#x: x} of [this]);
+    |           ^
+  6 |   }
+  7 | }
+  8 |"
+`;
+
+exports[`for-lhs.js [espree] format 1`] = `
+"Unexpected token #x (5:11)
+  3 |   m() {
+  4 |     let x;
+> 5 |     for ({#x: x} of [this]);
+    |           ^
+  6 |   }
+  7 | }
+  8 |"
+`;
+
+exports[`for-lhs.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (5:11)
+  3 |   m() {
+  4 |     let x;
+> 5 |     for ({#x: x} of [this]);
+    |           ^
+  6 |   }
+  7 | }
+  8 |"
+`;
+
+exports[`for-lhs.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  #x = 1;
+  m() {
+    let x;
+    for ({#x: x} of [this]);
+  }
+}
+
+=====================================output=====================================
+class C {
+  #x = 1;
+  m() {
+    let x;
+    for ({ #x: x } of [this]);
+  }
+}
+
+================================================================================
+`;
+
+exports[`nested-bindings.js [acorn] format 1`] = `
+"Unexpected token (4:17)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {x: { #x: [x] }, y: [...{ #x: y }]} = this;
+    |                 ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`nested-bindings.js [espree] format 1`] = `
+"Unexpected token #x (4:17)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {x: { #x: [x] }, y: [...{ #x: y }]} = this;
+    |                 ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`nested-bindings.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (4:17)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {x: { #x: [x] }, y: [...{ #x: y }]} = this;
+    |                 ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`nested-bindings.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  #x = 1;
+  m() {
+    const {x: { #x: [x] }, y: [...{ #x: y }]} = this;
+  }
+}
+
+=====================================output=====================================
+class C {
+  #x = 1;
+  m() {
+    const {
+      x: {
+        #x: [x],
+      },
+      y: [...{ #x: y }],
+    } = this;
+  }
+}
+
+================================================================================
+`;
+
+exports[`valid-multiple-bindings.js [acorn] format 1`] = `
+"Unexpected token (4:12)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {#x: x1, #x: x2 = x1 } = this;
+    |            ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`valid-multiple-bindings.js [espree] format 1`] = `
+"Unexpected token #x (4:12)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {#x: x1, #x: x2 = x1 } = this;
+    |            ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`valid-multiple-bindings.js [meriyah] format 1`] = `
+"Unexpected token: 'PrivateField' (4:12)
+  2 |   #x = 1;
+  3 |   m() {
+> 4 |     const {#x: x1, #x: x2 = x1 } = this;
+    |            ^
+  5 |   }
+  6 | }
+  7 |"
+`;
+
+exports[`valid-multiple-bindings.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  #x = 1;
+  m() {
+    const {#x: x1, #x: x2 = x1 } = this;
+  }
+}
+
+=====================================output=====================================
+class C {
+  #x = 1;
+  m() {
+    const { #x: x1, #x: x2 = x1 } = this;
+  }
+}
+
+================================================================================
+`;

tests/format/js/destructuring-private-fields/arrow-params.js

@@ -0,0 +1,4 @@
+class C {
+  #x = 1;
+  #p = ({ #x: x }) => {}
+}

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

@@ -0,0 +1,7 @@
+class C {
+  #x = 1;
+  m() {
+    let x;
+    ({ #x: x } = this);
+  }
+}

tests/format/js/destructuring-private-fields/async-arrow-params.js

@@ -0,0 +1,4 @@
+class C {
+  #x = 1;
+  #p = async ({ #x: x }) => {}
+}

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

@@ -0,0 +1,6 @@
+class C {
+  #x = 1;
+  m() {
+    const {#x: x} = this;
+  }
+}

tests/format/js/destructuring-private-fields/for-lhs.js

@@ -0,0 +1,7 @@
+class C {
+  #x = 1;
+  m() {
+    let x;
+    for ({#x: x} of [this]);
+  }
+}

tests/format/js/destructuring-private-fields/jsfmt.spec.js

@@ -0,0 +1,3 @@
+run_spec(__dirname, ["babel", "babel-flow", "babel-ts"], {
+  errors: { acorn: true, espree: true, meriyah: true },
+});

tests/format/js/destructuring-private-fields/nested-bindings.js

@@ -0,0 +1,6 @@
+class C {
+  #x = 1;
+  m() {
+    const {x: { #x: [x] }, y: [...{ #x: y }]} = this;
+  }
+}

tests/format/js/destructuring-private-fields/valid-multiple-bindings.js

@@ -0,0 +1,6 @@
+class C {
+  #x = 1;
+  m() {
+    const {#x: x1, #x: x2 = x1 } = this;
+  }
+}

tests/format/js/do/__snapshots__/jsfmt.spec.js.snap

@@ -23,7 +23,7 @@ exports[`call-arguments.js [espree] format 1`] = `
 `;
 
 exports[`call-arguments.js [meriyah] format 1`] = `
-"[3:4]: Unexpected token: 'do' (3:4)
+"Unexpected token: 'do' (3:4)
   1 | // from https://github.com/babel/babel/pull/13122/
   2 | expect(
 > 3 |   do {
@@ -142,7 +142,7 @@ exports[`do.js [espree] format 1`] = `
 `;
 
 exports[`do.js [meriyah] format 1`] = `
-"[3:6]: Unexpected token: 'do' (3:6)
+"Unexpected token: 'do' (3:6)
   1 | const envSpecific = {
   2 |   domain:
 > 3 |     do {

tests/format/js/dynamic-import/__snapshots__/jsfmt.spec.js.snap

@@ -22,7 +22,7 @@ exports[`assertions.js [flow] format 1`] = `
 `;
 
 exports[`assertions.js [meriyah] format 1`] = `
-"[1:20]: Expected ')' (1:20)
+"Expected ')' (1:20)
 > 1 | import(\\"./foo.json\\", { assert: { type: \\"json\\" } });
     |                    ^
   2 |"

tests/format/js/export-default/escaped/__snapshots__/jsfmt.spec.js.snap

@@ -15,7 +15,7 @@ exports[`default-escaped.js [espree] format 1`] = `
 `;
 
 exports[`default-escaped.js [meriyah] format 1`] = `
-"[2:12]: Unexpected token: 'identifier' (2:12)
+"Unexpected token: 'identifier' (2:12)
   1 | // export asyn\\\\u{63} from \\"async\\";
 > 2 | export n\\\\u{63} from \\"async\\";
     |            ^"

tests/format/js/export-extension/__snapshots__/jsfmt.spec.js.snap

@@ -21,7 +21,7 @@ exports[`export.js [espree] format 1`] = `
 `;
 
 exports[`export.js [meriyah] format 1`] = `
-"[2:8]: Unexpected token: 'identifier' (2:8)
+"Unexpected token: 'identifier' (2:8)
   1 | export * as ns from 'mod';
 > 2 | export v from 'mod';
     |        ^

tests/format/js/exports/__snapshots__/jsfmt.spec.js.snap

@@ -23,7 +23,7 @@ exports[`test.js [espree] format 1`] = `
 `;
 
 exports[`test.js [meriyah] format 1`] = `
-"[3:8]: Unexpected token: 'identifier' (3:8)
+"Unexpected token: 'identifier' (3:8)
   1 | export { value1, value2 as value2_renamed, value3, value4 as value4_renamed, value5 } from \\"exports\\";
   2 |
 > 3 | export a,{b} from \\"./baz\\";

tests/format/js/import-assertions/__snapshots__/jsfmt.spec.js.snap

@@ -15,7 +15,7 @@ exports[`dynamic-import.js [espree] format 1`] = `
 `;
 
 exports[`dynamic-import.js [meriyah] format 1`] = `
-"[1:20]: Expected ')' (1:20)
+"Expected ')' (1:20)
 > 1 | import(\\"./foo.json\\", { assert: { type: \\"json\\" } });
     |                    ^
   2 |"
@@ -56,7 +56,7 @@ exports[`empty.js [espree] format 1`] = `
 `;
 
 exports[`empty.js [meriyah] format 1`] = `
-"[2:38]: Unexpected token: 'identifier' (2:38)
+"Unexpected token: 'identifier' (2:38)
   1 | export * as foo from \\"foo.json\\"
 > 2 | export * as bar from \\"bar.json\\" assert { }
     |                                      ^
@@ -105,7 +105,7 @@ exports[`multi-types.js [espree] format 1`] = `
 `;
 
 exports[`multi-types.js [meriyah] format 1`] = `
-"[1:36]: Unexpected token: 'identifier' (1:36)
+"Unexpected token: 'identifier' (1:36)
 > 1 | import json from \\"./foo.json\\" assert { type: \\"json\\", type: \\"bar\\" };
     |                                    ^
   2 |"
@@ -140,7 +140,7 @@ exports[`non-type.js [espree] format 1`] = `
 `;
 
 exports[`non-type.js [meriyah] format 1`] = `
-"[1:33]: Unexpected token: 'identifier' (1:33)
+"Unexpected token: 'identifier' (1:33)
 > 1 | import foo from \\"foo.json\\" assert { lazy: \\"true\\" };
     |                                 ^
   2 |"
@@ -195,7 +195,7 @@ exports[`re-export.js [espree] format 1`] = `
 `;
 
 exports[`re-export.js [meriyah] format 1`] = `
-"[1:38]: Unexpected token: 'identifier' (1:38)
+"Unexpected token: 'identifier' (1:38)
 > 1 | export { foo2 } from \\"foo.json\\" assert { type: \\"json\\" };
     |                                      ^
   2 | export * from \\"foo.json\\" assert { type: \\"json\\" };
@@ -236,7 +236,7 @@ exports[`static-import.js [espree] format 1`] = `
 `;
 
 exports[`static-import.js [meriyah] format 1`] = `
-"[1:36]: Unexpected token: 'identifier' (1:36)
+"Unexpected token: 'identifier' (1:36)
 > 1 | import json from \\"./foo.json\\" assert { type: \\"json\\" };
     |                                    ^
   2 |"
@@ -271,7 +271,7 @@ exports[`without-from.js [espree] format 1`] = `
 `;
 
 exports[`without-from.js [meriyah] format 1`] = `
-"[1:19]: Unexpected token: 'identifier' (1:19)
+"Unexpected token: 'identifier' (1:19)
 > 1 | import \\"foo\\" assert { type: \\"json\\" }
     |                   ^
   2 |"

tests/format/js/import-assertions/bracket-spacing/__snapshots__/jsfmt.spec.js.snap

@@ -15,7 +15,7 @@ exports[`dynamic-import.js - {"bracketSpacing":false} [espree] format 1`] = `
 `;
 
 exports[`dynamic-import.js - {"bracketSpacing":false} [meriyah] format 1`] = `
-"[1:20]: Expected ')' (1:20)
+"Expected ')' (1:20)
 > 1 | import(\\"./foo.json\\", { assert: { type: \\"json\\" } });
     |                    ^
   2 |"
@@ -49,7 +49,7 @@ exports[`empty.js - {"bracketSpacing":false} [espree] format 1`] = `
 `;
 
 exports[`empty.js - {"bracketSpacing":false} [meriyah] format 1`] = `
-"[1:38]: Unexpected token: 'identifier' (1:38)
+"Unexpected token: 'identifier' (1:38)
 > 1 | export * as bar from \\"bar.json\\" assert { }
     |                                      ^"
 `;
@@ -83,7 +83,7 @@ exports[`re-export.js - {"bracketSpacing":false} [espree] format 1`] = `
 `;
 
 exports[`re-export.js - {"bracketSpacing":false} [meriyah] format 1`] = `
-"[1:38]: Unexpected token: 'identifier' (1:38)
+"Unexpected token: 'identifier' (1:38)
 > 1 | export { foo2 } from \\"foo.json\\" assert { type: \\"json\\" };
     |                                      ^
   2 |"
@@ -119,7 +119,7 @@ exports[`static-import.js - {"bracketSpacing":false} [espree] format 1`] = `
 `;
 
 exports[`static-import.js - {"bracketSpacing":false} [meriyah] format 1`] = `
-"[1:36]: Unexpected token: 'identifier' (1:36)
+"Unexpected token: 'identifier' (1:36)
 > 1 | import json from \\"./foo.json\\" assert { type: \\"json\\" };
     |                                    ^
   2 |"

tests/format/js/module-blocks/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`comments.js [espree] format 1`] = `
 `;
 
 exports[`comments.js [meriyah] format 1`] = `
-"[1:32]: Unexpected token: '{' (1:32)
+"Unexpected token: '{' (1:32)
 > 1 | const m = /*A1*/ module /*A2*/ { /*A3*/
     |                                ^
   2 |   /*A4*/
@@ -80,7 +80,7 @@ exports[`module-blocks.js [espree] format 1`] = `
 `;
 
 exports[`module-blocks.js [meriyah] format 1`] = `
-"[1:8]: Unexpected token: '{' (1:8)
+"Unexpected token: '{' (1:8)
 > 1 | module { await 3 };
     |        ^
   2 |
@@ -224,7 +224,7 @@ exports[`range.js [espree] format 1`] = `
 `;
 
 exports[`range.js [meriyah] format 1`] = `
-"[1:26]: Unexpected token: '{' (1:26)
+"Unexpected token: '{' (1:26)
 > 1 | let moduleBlock = module {  export let y = 1;
     |                          ^
   2 | };
@@ -280,7 +280,7 @@ exports[`worker.js [espree] format 1`] = `
 `;
 
 exports[`worker.js [meriyah] format 1`] = `
-"[1:32]: Expected ')' (1:32)
+"Expected ')' (1:32)
 > 1 | let worker = new Worker(module {
     |                                ^
   2 |   onmessage = function({data}) {

tests/format/js/module-string-names/__snapshots__/jsfmt.spec.js.snap

@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`module-string-names-export.js [meriyah] format 1`] = `
-"[1:26]: Only a identifier can be used to indicate alias (1:26)
+"Only a identifier can be used to indicate alias (1:26)
 > 1 | export { smile as \\"smile1\\" } from \\"./emojis.js\\";
     |                          ^
   2 | export { \\"smile\\" as smile2 } from \\"./emojis.js\\";
@@ -37,7 +37,7 @@ export { "smile4" } from "./emojis.js";
 `;
 
 exports[`module-string-names-import.js [meriyah] format 1`] = `
-"[1:18]: Expected '}' (1:18)
+"Expected '}' (1:18)
 > 1 | import { \\"default\\" as quotation1 } from \\"Confucius\\";
     |                  ^
   2 | import { \\"foo\\" as bar, \\"default\\" as qux } from \\"module-a\\";

tests/format/js/multiparser-invalid/__snapshots__/jsfmt.spec.js.snap

@@ -32,7 +32,7 @@ exports[`text.js [flow] format 1`] = `
 `;
 
 exports[`text.js [meriyah] format 1`] = `
-"[6:20]: Invalid hexadecimal escape sequence (6:20)
+"Invalid hexadecimal escape sequence (6:20)
   4 | foo = markdown\`\\\\u{prettier}\\\\u{0065}\`;
   5 | foo = css\`\\\\u{prettier}\\\\u{0065}\`;
 > 6 | foo = /* HTML */\`\\\\u{prettier}\\\\u{0065}\`;

tests/format/js/no-semi-babylon-extensions/__snapshots__/jsfmt.spec.js.snap

@@ -21,7 +21,7 @@ exports[`no-semi.js [espree] format 1`] = `
 `;
 
 exports[`no-semi.js [meriyah] format 1`] = `
-"[2:2]: Unexpected token: ':' (2:2)
+"Unexpected token: ':' (2:2)
   1 | a
 > 2 | ;::b.c
     |  ^
@@ -51,7 +51,7 @@ exports[`no-semi.js - {"semi":false} [espree] format 1`] = `
 `;
 
 exports[`no-semi.js - {"semi":false} [meriyah] format 1`] = `
-"[2:2]: Unexpected token: ':' (2:2)
+"Unexpected token: ':' (2:2)
   1 | a
 > 2 | ;::b.c
     |  ^

tests/format/js/objects/__snapshots__/jsfmt.spec.js.snap

@@ -75,7 +75,7 @@ exports[`expression.js [espree] format 1`] = `
 `;
 
 exports[`expression.js [meriyah] format 1`] = `
-"[5:4]: Expected ')' (5:4)
+"Expected ')' (5:4)
   3 | a = () => ({}).x;
   4 | ({} && a, b);
 > 5 | ({}::b, 0);

tests/format/js/partial-application/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`test.js [espree] format 1`] = `
 `;
 
 exports[`test.js [meriyah] format 1`] = `
-"[1:23]: Unexpected token: '?' (1:23)
+"Unexpected token: '?' (1:23)
 > 1 | const addOne = add(1, ?); // apply from the left
     |                       ^
   2 | addOne(2); // 3

tests/format/js/pipeline-operator/__snapshots__/jsfmt.spec.js.snap

@@ -21,7 +21,7 @@ exports[`block-comments.js [espree] format 1`] = `
 `;
 
 exports[`block-comments.js [meriyah] format 1`] = `
-"[2:2]: Unexpected token: '>' (2:2)
+"Unexpected token: '>' (2:2)
   1 | bifornCringerMoshedPerplexSawder
 > 2 | |> foo1
     |  ^
@@ -75,7 +75,7 @@ exports[`fsharp_style_pipeline_operator.js [espree] format 1`] = `
 `;
 
 exports[`fsharp_style_pipeline_operator.js [meriyah] format 1`] = `
-"[2:4]: Unexpected token: '>' (2:4)
+"Unexpected token: '>' (2:4)
   1 | promise
 > 2 |   |> await
     |    ^
@@ -198,7 +198,7 @@ exports[`hack_pipeline_operator.js [espree] format 1`] = `
 `;
 
 exports[`hack_pipeline_operator.js [meriyah] format 1`] = `
-"[1:4]: Unexpected token: '>' (1:4)
+"Unexpected token: '>' (1:4)
 > 1 | a |> await % |> % * 3;
     |    ^
   2 |
@@ -339,7 +339,7 @@ exports[`minimal_pipeline_operator.js [espree] format 1`] = `
 `;
 
 exports[`minimal_pipeline_operator.js [meriyah] format 1`] = `
-"[1:4]: Unexpected token: '>' (1:4)
+"Unexpected token: '>' (1:4)
 > 1 | a |> b |> c;
     |    ^
   2 |

tests/format/js/record/__snapshots__/jsfmt.spec.js.snap

@@ -21,7 +21,7 @@ exports[`computed.js [espree] format 1`] = `
 `;
 
 exports[`computed.js [meriyah] format 1`] = `
-"[2:8]: '#' not followed by identifier (2:8)
+"'#' not followed by identifier (2:8)
   1 | const key = \\"a\\";
 > 2 | assert(#{ [key]: 1 } === #{ a: 1 })
     |        ^
@@ -79,7 +79,7 @@ exports[`destructuring.js [espree] format 1`] = `
 `;
 
 exports[`destructuring.js [meriyah] format 1`] = `
-"[1:18]: '#' not followed by identifier (1:18)
+"'#' not followed by identifier (1:18)
 > 1 | const { a, b } = #{ a: 1, b: 2 };
     |                  ^
   2 | assert(a === 1);
@@ -136,7 +136,7 @@ exports[`record.js [espree] format 1`] = `
 `;
 
 exports[`record.js [meriyah] format 1`] = `
-"[1:17]: '#' not followed by identifier (1:17)
+"'#' not followed by identifier (1:17)
 > 1 | const record1 = #{
     |                 ^
   2 |     a: 1,
@@ -207,7 +207,7 @@ exports[`shorthand.js [espree] format 1`] = `
 `;
 
 exports[`shorthand.js [meriyah] format 1`] = `
-"[2:16]: '#' not followed by identifier (2:16)
+"'#' not followed by identifier (2:16)
   1 | const url = \\"https://github.com/tc39/proposal-record-tuple\\";
 > 2 | const record = #{ url }
     |                ^
@@ -252,7 +252,7 @@ exports[`spread.js [espree] format 1`] = `
 `;
 
 exports[`spread.js [meriyah] format 1`] = `
-"[1:18]: '#' not followed by identifier (1:18)
+"'#' not followed by identifier (1:18)
 > 1 | const formData = #{ title: \\"Implement all the things\\" }
     |                  ^
   2 | const taskNow = #{ id: 42, status: \\"WIP\\", ...formData }
@@ -303,7 +303,7 @@ exports[`syntax.js [espree] format 1`] = `
 `;
 
 exports[`syntax.js [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #{}
     | ^
   2 | #{ a: 1, b: 2 }

tests/format/js/regex/__snapshots__/jsfmt.spec.js.snap

@@ -8,7 +8,7 @@ exports[`d-flag.js [flow] format 1`] = `
 `;
 
 exports[`d-flag.js [meriyah] format 1`] = `
-"[1:3]: Unexpected regular expression flag (1:3)
+"Unexpected regular expression flag (1:3)
 > 1 | /./d;
     |   ^
   2 |"
@@ -64,7 +64,7 @@ exports[`v-flag.js [flow] format 1`] = `
 `;
 
 exports[`v-flag.js [meriyah] format 1`] = `
-"[1:3]: Unexpected regular expression flag (1:3)
+"Unexpected regular expression flag (1:3)
 > 1 | /a/v;
     |   ^
   2 |"

tests/format/js/rest/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`trailing-commas.js - {"trailingComma":"all"} [espree] format 1`] = `
 `;
 
 exports[`trailing-commas.js - {"trailingComma":"all"} [meriyah] format 1`] = `
-"[1:13]: Unexpected token: 'class' (1:13)
+"Unexpected token: 'class' (1:13)
 > 1 | declare class C {
     |             ^
   2 |   f(

tests/format/js/sloppy-mode/__snapshots__/jsfmt.spec.js.snap

@@ -95,7 +95,7 @@ exports[`function-declaration-in-while.js [flow] format 1`] = `
 `;
 
 exports[`function-declaration-in-while.js [meriyah] format 1`] = `
-"[1:22]: In strict mode code, functions can only be declared at top level or inside a block (1:22)
+"In strict mode code, functions can only be declared at top level or inside a block (1:22)
 > 1 | while (false) function foo(){}
     |                      ^
   2 |"

tests/format/js/throw_expressions/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`throw_expression.js [espree] format 1`] = `
 `;
 
 exports[`throw_expression.js [meriyah] format 1`] = `
-"[1:30]: Unexpected token: 'throw' (1:30)
+"Unexpected token: 'throw' (1:30)
 > 1 | function save(filename = throw new TypeError(\\"Argument required\\")) {}
     |                              ^
   2 |

tests/format/js/trailing-whitespace/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`trailing.js [espree] format 1`] = `
 `;
 
 exports[`trailing.js [meriyah] format 1`] = `
-"[1:11]: Unexpected token: 'identifier' (1:11)
+"Unexpected token: 'identifier' (1:11)
 > 1 | export type Result<T, V> = | { kind: \\"not-test-editor1\\" } | { kind: \\"not-test-editor2\\" };
     |           ^
   2 |

tests/format/js/tuple/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`destructuring.js [espree] format 1`] = `
 `;
 
 exports[`destructuring.js [meriyah] format 1`] = `
-"[1:16]: '#' not followed by identifier (1:16)
+"'#' not followed by identifier (1:16)
 > 1 | const [a, b] = #[1, 2];
     |                ^
   2 | assert(a === 1);
@@ -86,7 +86,7 @@ exports[`invalid-tuple-holes.js [espree] format 1`] = `
 `;
 
 exports[`invalid-tuple-holes.js [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #[,]
     | ^
   2 |"
@@ -111,7 +111,7 @@ exports[`syntax.js [espree] format 1`] = `
 `;
 
 exports[`syntax.js [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #[]
     | ^
   2 | #[1, 2]
@@ -156,7 +156,7 @@ exports[`tuple.js [espree] format 1`] = `
 `;
 
 exports[`tuple.js [meriyah] format 1`] = `
-"[1:16]: '#' not followed by identifier (1:16)
+"'#' not followed by identifier (1:16)
 > 1 | const tuple1 = #[1, 2, 3];
     |                ^
   2 |
@@ -225,7 +225,7 @@ exports[`tuple-trailing-comma.js [espree] format 1`] = `
 `;
 
 exports[`tuple-trailing-comma.js [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #[1,]
     | ^
   2 |"

tests/format/js/v8_intrinsic/__snapshots__/jsfmt.spec.js.snap

@@ -17,7 +17,7 @@ exports[`avoid-conflicts-to-pipeline.js [espree] format 1`] = `
 `;
 
 exports[`avoid-conflicts-to-pipeline.js [meriyah] format 1`] = `
-"[2:16]: Unexpected token: '%' (2:16)
+"Unexpected token: '%' (2:16)
   1 | // |>
 > 2 | const status = %GetOptimizationStatus(fn);
     |                ^
@@ -61,7 +61,7 @@ exports[`intrinsic_call.js [espree] format 1`] = `
 `;
 
 exports[`intrinsic_call.js [meriyah] format 1`] = `
-"[2:13]: Unexpected token: '%' (2:13)
+"Unexpected token: '%' (2:13)
   1 | function doSmth()     {
 > 2 |             %DebugPrint
     |             ^

tests/format/misc/errors/invalid/__snapshots__/jsfmt.spec.js.snap

@@ -61,13 +61,13 @@ exports[`snippet: #0 [flow] format 2`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[1:8]: Expected '(' (1:8)
+"Expected '(' (1:8)
 > 1 | for each (a in b) {}
     |        ^"
 `;
 
 exports[`snippet: #0 [meriyah] format 2`] = `
-"[1:9]: Invalid left-hand side in assignment (1:9)
+"Invalid left-hand side in assignment (1:9)
 > 1 | (a = b) = 1
     |         ^"
 `;
@@ -139,13 +139,13 @@ exports[`snippet: #1 [flow] format 2`] = `
 `;
 
 exports[`snippet: #1 [meriyah] format 1`] = `
-"[1:12]: Unexpected strict mode reserved word (1:12)
+"Unexpected strict mode reserved word (1:12)
 > 1 | class switch() {}
     |            ^"
 `;
 
 exports[`snippet: #1 [meriyah] format 2`] = `
-"[1:7]: Invalid left-hand side in assignment (1:7)
+"Invalid left-hand side in assignment (1:7)
 > 1 | a = 1 = 2
     |       ^"
 `;
@@ -181,7 +181,7 @@ exports[`snippet: #2 [flow] format 1`] = `
 `;
 
 exports[`snippet: #2 [meriyah] format 1`] = `
-"[1:9]: Invalid left-hand side in assignment (1:9)
+"Invalid left-hand side in assignment (1:9)
 > 1 | (a = 1) = 2
     |         ^"
 `;
@@ -211,7 +211,7 @@ exports[`snippet: #3 [flow] format 1`] = `
 `;
 
 exports[`snippet: #3 [meriyah] format 1`] = `
-"[1:10]: Invalid left-hand side in assignment (1:10)
+"Invalid left-hand side in assignment (1:10)
 > 1 | (a += b) = 1
     |          ^"
 `;
@@ -241,7 +241,7 @@ exports[`snippet: #4 [flow] format 1`] = `
 `;
 
 exports[`snippet: #4 [meriyah] format 1`] = `
-"[1:10]: Invalid left-hand side in assignment (1:10)
+"Invalid left-hand side in assignment (1:10)
 > 1 | (a = b) += 1
     |          ^"
 `;

tests/format/misc/errors/js/assignment/__snapshots__/jsfmt.spec.js.snap

@@ -25,7 +25,7 @@ exports[`snippet: #0 [espree] format 1`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[1:6]: Invalid left-hand side in assignment (1:6)
+"Invalid left-hand side in assignment (1:6)
 > 1 | ({}) = x;
     |      ^"
 `;

tests/format/misc/errors/js/async-await/__snapshots__/jsfmt.spec.js.snap

@@ -51,7 +51,7 @@ exports[`snippet: #0 [flow] format 1`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[2:24]: Await is only valid in async functions (2:24)
+"Await is only valid in async functions (2:24)
   1 | async function foo() {
 > 2 |   function bar(x = await 2) {}
     |                        ^
@@ -83,7 +83,7 @@ exports[`snippet: #1 [flow] format 1`] = `
 `;
 
 exports[`snippet: #1 [meriyah] format 1`] = `
-"[1:22]: Await expression not allowed in formal parameter (1:22)
+"Await expression not allowed in formal parameter (1:22)
 > 1 | async (x = await 2) => {};
     |                      ^"
 `;
@@ -113,7 +113,7 @@ exports[`snippet: #2 [flow] format 1`] = `
 `;
 
 exports[`snippet: #2 [meriyah] format 1`] = `
-"[1:25]: Unexpected token: '!' (1:25)
+"Unexpected token: '!' (1:25)
 > 1 | f = async (a) => await a! ** 6;
     |                         ^"
 `;
@@ -143,7 +143,7 @@ exports[`snippet: #3 [flow] format 1`] = `
 `;
 
 exports[`snippet: #3 [meriyah] format 1`] = `
-"[1:14]: Unexpected token: '!' (1:14)
+"Unexpected token: '!' (1:14)
 > 1 | f = (a) => +a! ** 6;
     |              ^"
 `;
@@ -173,7 +173,7 @@ exports[`snippet: #4 [flow] format 1`] = `
 `;
 
 exports[`snippet: #4 [meriyah] format 1`] = `
-"[1:22]: Expected ')' (1:22)
+"Expected ')' (1:22)
 > 1 | async (a) => (await a!) ** 6;
     |                      ^"
 `;
@@ -203,7 +203,7 @@ exports[`snippet: #5 [flow] format 1`] = `
 `;
 
 exports[`snippet: #5 [meriyah] format 1`] = `
-"[1:7]: Unary expressions as the left operand of an exponentiation expression must be disambiguated with parentheses (1:7)
+"Unary expressions as the left operand of an exponentiation expression must be disambiguated with parentheses (1:7)
 > 1 | (-+5 ** 6);
     |       ^"
 `;
@@ -233,7 +233,7 @@ exports[`snippet: #6 [flow] format 1`] = `
 `;
 
 exports[`snippet: #6 [meriyah] format 1`] = `
-"[1:26]: Unary expressions as the left operand of an exponentiation expression must be disambiguated with parentheses (1:26)
+"Unary expressions as the left operand of an exponentiation expression must be disambiguated with parentheses (1:26)
 > 1 | f = async () => await 5 ** 6;
     |                          ^"
 `;
@@ -263,7 +263,7 @@ exports[`snippet: #7 [flow] format 1`] = `
 `;
 
 exports[`snippet: #7 [meriyah] format 1`] = `
-"[1:27]: Unary expressions as the left operand of an exponentiation expression must be disambiguated with parentheses (1:27)
+"Unary expressions as the left operand of an exponentiation expression must be disambiguated with parentheses (1:27)
 > 1 | f = async () => await -5 ** 6;
     |                           ^"
 `;
@@ -293,7 +293,7 @@ exports[`snippet: #8 [flow] format 1`] = `
 `;
 
 exports[`snippet: #8 [meriyah] format 1`] = `
-"[1:21]: Invalid shorthand property initializer (1:21)
+"Invalid shorthand property initializer (1:21)
 > 1 | async({ foo33 = 1 });
     |                     ^"
 `;

tests/format/misc/errors/js/for-of/__snapshots__/jsfmt.spec.js.snap

@@ -55,7 +55,7 @@ exports[`snippet: #0 [flow] format 1`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[1:9]: Identifier \\"let\\" disallowed as left-hand side expression in strict mode (1:9)
+"Identifier \\"let\\" disallowed as left-hand side expression in strict mode (1:9)
 > 1 | for (let.foo of []);
     |         ^"
 `;
@@ -91,7 +91,7 @@ exports[`snippet: #1 [flow] format 1`] = `
 `;
 
 exports[`snippet: #1 [meriyah] format 1`] = `
-"[1:9]: Identifier \\"let\\" disallowed as left-hand side expression in strict mode (1:9)
+"Identifier \\"let\\" disallowed as left-hand side expression in strict mode (1:9)
 > 1 | for (let().bar of []);
     |         ^"
 `;
@@ -127,7 +127,7 @@ exports[`snippet: #2 [flow] format 1`] = `
 `;
 
 exports[`snippet: #2 [meriyah] format 1`] = `
-"[1:10]: Identifier \\"let\\" disallowed as left-hand side expression in strict mode (1:10)
+"Identifier \\"let\\" disallowed as left-hand side expression in strict mode (1:10)
 > 1 | for (let\`\`.bar of []);
     |          ^"
 `;

tests/format/misc/errors/js/import/__snapshots__/jsfmt.spec.js.snap

@@ -37,7 +37,7 @@ exports[`snippet: #0 [flow] format 1`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[1:8]: Unexpected token: ')' (1:8)
+"Unexpected token: ')' (1:8)
 > 1 | import();
     |        ^"
 `;
@@ -85,7 +85,7 @@ exports[`snippet: #1 [flow] format 1`] = `
 `;
 
 exports[`snippet: #1 [meriyah] format 1`] = `
-"[1:21]: Unexpected token: ')' (1:21)
+"Unexpected token: ')' (1:21)
 > 1 | import(/* comment */);
     |                     ^"
 `;
@@ -133,7 +133,7 @@ exports[`snippet: #2 [flow] format 1`] = `
 `;
 
 exports[`snippet: #2 [meriyah] format 1`] = `
-"[1:11]: Cannot use new with import(...) (1:11)
+"Cannot use new with import(...) (1:11)
 > 1 | new import('./a.mjs');
     |           ^"
 `;
@@ -181,7 +181,7 @@ exports[`snippet: #3 [flow] format 1`] = `
 `;
 
 exports[`snippet: #3 [meriyah] format 1`] = `
-"[1:11]: Cannot use new with import(...) (1:11)
+"Cannot use new with import(...) (1:11)
 > 1 | new import();
     |           ^"
 `;

tests/format/misc/errors/js/literal/__snapshots__/jsfmt.spec.js.snap

@@ -22,7 +22,7 @@ exports[`invalid-exponent.js [espree] format 1`] = `
 `;
 
 exports[`invalid-exponent.js [meriyah] format 1`] = `
-"[1:5]: Non-number found after exponent indicator (1:5)
+"Non-number found after exponent indicator (1:5)
 > 1 | 12.3e
     |     ^
   2 |"

tests/format/misc/errors/js/object/__snapshots__/jsfmt.spec.js.snap

@@ -28,7 +28,7 @@ exports[`getter-generator.js [espree] format 1`] = `
 `;
 
 exports[`getter-generator.js [meriyah] format 1`] = `
-"[2:9]: A getter cannot be a generator (2:9)
+"A getter cannot be a generator (2:9)
   1 | ({
 > 2 |     get *iterator() { },
     |         ^
@@ -58,7 +58,7 @@ exports[`getter-with-parameter.js [espree] format 1`] = `
 `;
 
 exports[`getter-with-parameter.js [meriyah] format 1`] = `
-"[1:10]: Getter functions must have exactly no arguments (1:10)
+"Getter functions must have exactly no arguments (1:10)
 > 1 | ({ get x(a){} });
     |          ^
   2 |"
@@ -92,7 +92,7 @@ exports[`setter-generator.js [espree] format 1`] = `
 `;
 
 exports[`setter-generator.js [meriyah] format 1`] = `
-"[2:9]: A getter cannot be a generator (2:9)
+"A getter cannot be a generator (2:9)
   1 | ({
 > 2 |     set *iterator(iter) { },
     |         ^
@@ -122,7 +122,7 @@ exports[`setter-without-parameter.js [espree] format 1`] = `
 `;
 
 exports[`setter-without-parameter.js [meriyah] format 1`] = `
-"[1:10]: Setter functions must have exactly one argument (1:10)
+"Setter functions must have exactly one argument (1:10)
 > 1 | ({ set x(){} });
     |          ^
   2 |"

tests/format/misc/errors/js/optional-chaining/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`snippet: #0 [espree] format 1`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[1:22]: Invalid optional chain from new expression (1:22)
+"Invalid optional chain from new expression (1:22)
 > 1 | const baz3 = new obj?.foo?.bar?.baz(); // baz instance
     |                      ^"
 `;
@@ -43,7 +43,7 @@ exports[`snippet: #1 [espree] format 1`] = `
 `;
 
 exports[`snippet: #1 [meriyah] format 1`] = `
-"[1:23]: Invalid optional chain from new expression (1:23)
+"Invalid optional chain from new expression (1:23)
 > 1 | const safe5 = new obj?.qux?.baz(); // undefined
     |                       ^"
 `;
@@ -67,7 +67,7 @@ exports[`snippet: #2 [espree] format 1`] = `
 `;
 
 exports[`snippet: #2 [meriyah] format 1`] = `
-"[1:23]: Invalid optional chain from new expression (1:23)
+"Invalid optional chain from new expression (1:23)
 > 1 | const safe6 = new obj?.foo.bar.qux?.(); // undefined
     |                       ^"
 `;
@@ -91,7 +91,7 @@ exports[`snippet: #3 [espree] format 1`] = `
 `;
 
 exports[`snippet: #3 [meriyah] format 1`] = `
-"[1:27]: Invalid optional chain from new expression (1:27)
+"Invalid optional chain from new expression (1:27)
 > 1 | const willThrow = new obj?.foo.bar.qux(); // Error: not a constructor
     |                           ^"
 `;
@@ -121,7 +121,7 @@ exports[`snippet: #4 [espree] format 1`] = `
 `;
 
 exports[`snippet: #4 [meriyah] format 1`] = `
-"[4:10]: Invalid optional chain from new expression (4:10)
+"Invalid optional chain from new expression (4:10)
   2 | class Test {
   3 | }
 > 4 | new Test?.(); // test instance
@@ -147,7 +147,7 @@ exports[`snippet: #5 [espree] format 1`] = `
 `;
 
 exports[`snippet: #5 [meriyah] format 1`] = `
-"[1:12]: Invalid optional chain from new expression (1:12)
+"Invalid optional chain from new expression (1:12)
 > 1 | new exists?.(); // undefined
     |            ^"
 `;

tests/format/misc/errors/js/record/__snapshots__/jsfmt.spec.js.snap

@@ -19,7 +19,7 @@ exports[`snippet: #0 [espree] format 1`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #{a() {}}
     | ^"
 `;
@@ -43,7 +43,7 @@ exports[`snippet: #1 [espree] format 1`] = `
 `;
 
 exports[`snippet: #1 [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #{async b() {}}
     | ^"
 `;
@@ -67,7 +67,7 @@ exports[`snippet: #2 [espree] format 1`] = `
 `;
 
 exports[`snippet: #2 [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #{get c() {}}
     | ^"
 `;
@@ -91,7 +91,7 @@ exports[`snippet: #3 [espree] format 1`] = `
 `;
 
 exports[`snippet: #3 [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #{set d(_) {}}
     | ^"
 `;
@@ -115,7 +115,7 @@ exports[`snippet: #4 [espree] format 1`] = `
 `;
 
 exports[`snippet: #4 [meriyah] format 1`] = `
-"[1:1]: '#' not followed by identifier (1:1)
+"'#' not followed by identifier (1:1)
 > 1 | #{*e() {}}
     | ^"
 `;

tests/format/misc/errors/js/regex-v-u-flags/__snapshots__/jsfmt.spec.js.snap

@@ -22,7 +22,7 @@ exports[`invalid-flags.js [espree] format 1`] = `
 `;
 
 exports[`invalid-flags.js [meriyah] format 1`] = `
-"[1:5]: Unexpected regular expression flag (1:5)
+"Unexpected regular expression flag (1:5)
 > 1 | /a/ugv;
     |     ^
   2 |"
@@ -50,7 +50,7 @@ exports[`invalid-flags2.js [espree] format 1`] = `
 `;
 
 exports[`invalid-flags2.js [meriyah] format 1`] = `
-"[1:3]: Unexpected regular expression flag (1:3)
+"Unexpected regular expression flag (1:3)
 > 1 | /a/vu;
     |   ^
   2 |"

tests/format/misc/errors/js/reserved-word/__snapshots__/jsfmt.spec.js.snap

@@ -7,7 +7,7 @@ exports[`snippet: #0 [espree] format 1`] = `
 `;
 
 exports[`snippet: #0 [meriyah] format 1`] = `
-"[1:15]: Unexpected strict mode reserved word (1:15)
+"Unexpected strict mode reserved word (1:15)
 > 1 | class interface {}
     |               ^"
 `;
@@ -19,7 +19,7 @@ exports[`snippet: #1 [espree] format 1`] = `
 `;
 
 exports[`snippet: #1 [meriyah] format 1`] = `
-"[1:16]: Unexpected strict mode reserved word (1:16)
+"Unexpected strict mode reserved word (1:16)
 > 1 | import interface from \\"foo\\";
     |                ^"
 `;

tests/format/misc/errors/js/variable-declarator/__snapshots__/jsfmt.spec.js.snap

@@ -22,7 +22,7 @@ exports[`invalid-const.js [espree] format 1`] = `
 `;
 
 exports[`invalid-const.js [meriyah] format 1`] = `
-"[1:10]: Missing initializer in const declaration (1:10)
+"Missing initializer in const declaration (1:10)
 > 1 | const foo;
     |          ^
   2 |"

tests/format/yaml/block-literal/jsfmt.spec.js

@@ -1,2 +1,19 @@
-run_spec(import.meta, ["yaml"]);
-run_spec(import.meta, ["yaml"], { proseWrap: "always" });
+import { outdent } from "outdent";
+
+const snippets = [
+  {
+    code: outdent`
+      block_with_ideographic_space: |
+        \u{3000}x
+    `,
+    output: outdent`
+      block_with_ideographic_space: |
+        \u{3000}x
+    `,
+  },
+].map((test) => ({ ...test, output: test.output + "\n" }));
+
+run_spec({ importMeta: import.meta, snippets }, ["yaml"]);
+run_spec({ importMeta: import.meta, snippets }, ["yaml"], {
+  proseWrap: "always",
+});

tests/integration/__tests__/__snapshots__/early-exit.js.snap

@@ -153,6 +153,7 @@ Other options:
   --loglevel <silent|error|warn|log|debug>
                            What level of logs to report.
                            Defaults to log.
+  --no-plugin-search       Disable plugin autoloading.
   --require-pragma         Require either '@prettier' or '@format' to be present in the file's first docblock comment
                            in order for it to be formatted.
                            Defaults to false.
@@ -322,6 +323,7 @@ Other options:
   --loglevel <silent|error|warn|log|debug>
                            What level of logs to report.
                            Defaults to log.
+  --no-plugin-search       Disable plugin autoloading.
   --require-pragma         Require either '@prettier' or '@format' to be present in the file's first docblock comment
                            in order for it to be formatted.
                            Defaults to false.

tests/integration/__tests__/__snapshots__/help-options.js.snap

@@ -358,6 +358,17 @@ exports[`show detailed usage with --help no-error-on-unmatched-pattern (stdout)
 
 exports[`show detailed usage with --help no-error-on-unmatched-pattern (write) 1`] = `Array []`;
 
+exports[`show detailed usage with --help no-plugin-search (stderr) 1`] = `""`;
+
+exports[`show detailed usage with --help no-plugin-search (stdout) 1`] = `
+"--no-plugin-search
+
+  Disable plugin autoloading.
+"
+`;
+
+exports[`show detailed usage with --help no-plugin-search (write) 1`] = `Array []`;
+
 exports[`show detailed usage with --help no-semi (stderr) 1`] = `""`;
 
 exports[`show detailed usage with --help no-semi (stdout) 1`] = `

tests/integration/__tests__/__snapshots__/support-info.js.snap

@@ -512,7 +512,8 @@ exports[`CLI --support-info (stdout) 1`] = `
         \\"language-configuration.json\\",
         \\"tsconfig.json\\",
         \\"tslint.json\\",
-        \\".eslintrc\\"
+        \\".eslintrc\\",
+        \\".swcrc\\"
       ],
       \\"group\\": \\"JSON\\",
       \\"linguistLanguageId\\": 423,

tests/integration/__tests__/config-resolution.js

@@ -305,6 +305,14 @@ test("API resolveConfig resolves relative path values based on config filepath",
     plugins: [path.join(parentDir, "path-to-plugin")],
     pluginSearchDirs: [path.join(parentDir, "path-to-plugin-search-dir")],
   });
+
+  expect(
+    prettier.resolveConfig.sync(
+      path.join(__dirname, "../cli/config/plugin-search-dirs/index.js")
+    )
+  ).toMatchObject({
+    pluginSearchDirs: false,
+  });
 });
 
 test("API resolveConfig de-references to an external module", () => {

tests/integration/__tests__/plugin-resolution.js

@@ -203,3 +203,70 @@ describe("loads --plugin by bespoke plugin name (assuming it is installed in cwd
     write: [],
   });
 });
+
+test("--no-plugin-search", async () => {
+  async function getParser(args = []) {
+    const { stdout } = await runPrettier("plugins/automatic", [
+      "--file-info=file.foo",
+      ...args,
+    ]);
+    return JSON.parse(stdout).inferredParser;
+  }
+
+  expect(await getParser()).toBe("foo");
+  expect(await getParser(["--plugin-search-dir=."])).toBe("foo");
+  expect(await getParser(["--no-plugin-search"])).toBeNull();
+});
+
+test("--no-plugin-search still allow use --plugin", async () => {
+  const args = ["file.txt", "--parser=bar"];
+  const { stdout: stdoutWithoutPlugin } = await runPrettier(
+    "plugins/automatic",
+    args
+  );
+  const argsWithPlugin = [...args, "--plugin=./prettier-plugin-bar.js"];
+  const { stdout: stdoutWithPlugin } = await runPrettier(
+    "plugins/automatic",
+    argsWithPlugin
+  );
+  const { stdout: stdoutWithoutPluginAndNoPluginSearch } = await runPrettier(
+    "plugins/automatic",
+    [...args, "--no-plugin-search"]
+  );
+  const { stdout: stdoutWithPluginButNoPluginSearch } = await runPrettier(
+    "plugins/automatic",
+    [...argsWithPlugin, "--no-plugin-search"]
+  );
+
+  expect(stdoutWithoutPlugin).not.toBe(stdoutWithPlugin);
+  expect(stdoutWithoutPluginAndNoPluginSearch).toBe("");
+  expect(stdoutWithPlugin).toBe(stdoutWithPluginButNoPluginSearch);
+});
+
+test("--no-plugin-search together with --plugin-search-dir", async () => {
+  const result1 = await runPrettier("plugins/automatic", [
+    "--no-plugin-search",
+    "--plugin-search-dir",
+  ]);
+  const result2 = await runPrettier("plugins/automatic", [
+    "--no-plugin-search",
+    "--plugin-search-dir=foo",
+  ]);
+  const result3 = await runPrettier("plugins/automatic", [
+    "--no-plugin-search",
+    "--plugin-search-dir=foo",
+    "--plugin-search-dir=bar",
+  ]);
+
+  expect(result1).toMatchInlineSnapshot(`
+    Object {
+      "status": 1,
+      "stderr": "[error] Cannot use --no-plugin-search and --plugin-search-dir together.
+    ",
+      "stdout": "",
+      "write": Array [],
+    }
+  `);
+  expect(result2).toEqual(result1);
+  expect(result3).toEqual(result1);
+});

tests/integration/__tests__/with-parser-inference.js

@@ -43,4 +43,26 @@ describe("infers parser from filename", () => {
       prettier.format("let foo = ( x = 1 ) => x", { filepath: "x/y/Jakefile" })
     ).toBe("let foo = (x = 1) => x;\n");
   });
+
+  test("json from .swcrc", () => {
+    expect(
+      prettier.format(
+        `
+    {
+      "jsc": {
+    // Requires v1.2.50 or upper and requires target to be es2016 or upper.
+        "keepClassNames": false
+      }
+    }
+    `,
+        { filepath: "/path/to/.swcrc" }
+      )
+    ).toBe(`{
+  "jsc": {
+    // Requires v1.2.50 or upper and requires target to be es2016 or upper.
+    "keepClassNames": false
+  }
+}
+`);
+  });
 });

tests/integration/cli/config/plugin-search-dirs/.prettierrc

@@ -0,0 +1,3 @@
+{
+    "pluginSearchDirs": false
+}

vendors/execa.d.ts

@@ -0,0 +1,2 @@
+// This file is generated automatically.
+export * from "execa";

vendors/tempy.d.ts

@@ -0,0 +1,3 @@
+// This file is generated automatically.
+export {default} from "tempy";
+export * from "tempy";