Merge branch 'next' into remove-webpack

# Conflicts: # package.json # yarn.lock
prettier · Nov 9, 2020 · 8ca5cb7 · 8ca5cb7
2 parents 9763623 + 8616182
commit 8ca5cb7
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diff --git a/.eslintrc.yml b/.eslintrc.yml
@@ -14,7 +14,6 @@ settings:
   import/internal-regex: ^linguist-languages/
 rules:
   prettier-internal-rules/require-json-extensions: error
-  prettier-internal-rules/better-parent-property-check-in-needs-parens: error
   curly: error
   dot-notation: error
   eqeqeq:
@@ -100,3 +99,14 @@ overrides:
         - error
         - patterns:
             - ".."
+  - files: src/language-js/needs-parens.js
+    rules:
+      prettier-internal-rules/better-parent-property-check-in-needs-parens: error
+  - files: src/**/*.js
+    rules:
+      prettier-internal-rules/prefer-fast-path-each: error
+  - files:
+      - src/language-js/**/*.js
+      - src/language-css/**/*.js
+    rules:
+      prettier-internal-rules/directly-loc-start-end: error
diff --git a/.github/workflows/dev-package-test.yml b/.github/workflows/dev-package-test.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2.3.4
 
       - name: Setup Node.js
         uses: actions/setup-node@v2.1.2

diff --git a/.github/workflows/dev-test.yml b/.github/workflows/dev-test.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - master
       - patch-release
+      - next
   pull_request:
 
 jobs:
@@ -28,6 +29,8 @@ jobs:
             ENABLE_CODE_COVERAGE: true
             FULL_TEST: true
             CHECK_TEST_PARSERS: true
+          - os: "ubuntu-latest"
+            node: "15"
         exclude:
           - os: "macos-latest"
             node: "12"
@@ -41,7 +44,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2.3.4
 
       - name: Setup Node.js
         uses: actions/setup-node@v2.1.2

diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - master
       - patch-release
+      - next
   pull_request:
 
 jobs:
@@ -13,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2.3.4
 
       - name: Setup Node.js
         uses: actions/setup-node@v2.1.2

diff --git a/.github/workflows/prod-test.yml b/.github/workflows/prod-test.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - master
       - patch-release
+      - next
   pull_request:
 
 jobs:
@@ -13,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2.3.4
 
       - name: Setup Node.js
         uses: actions/setup-node@v2.1.2
@@ -57,7 +58,7 @@ jobs:
     needs: [build]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2.3.4
 
       - name: Setup Node.js
         uses: actions/setup-node@v2.1.2
@@ -91,6 +92,8 @@ jobs:
           - os: "ubuntu-latest"
             node: "14"
             FULL_TEST: true
+          - os: "ubuntu-latest"
+            node: "15"
         exclude:
           - os: "macos-latest"
             node: "12"
@@ -103,7 +106,7 @@ jobs:
     needs: [build]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2.3.4
 
       - name: Setup Node.js
         uses: actions/setup-node@v2.1.2

diff --git a/changelog_unreleased/api/pr-8983.md b/changelog_unreleased/api/pr-8983.md
@@ -1,6 +1,6 @@
-#### ESM standalone bundles ([#8983](https://github.com/prettier/prettier/pull/8983) by [@Monchi](https://github.com/Monchi), [@fisker](https://github.com/fisker))
+#### [HIGHLIGHT]ESM standalone bundles ([#8983](https://github.com/prettier/prettier/pull/8983) by [@Monchi](https://github.com/Monchi), [@fisker](https://github.com/fisker))
 
-Now standalone is also bundled as ESM. It works directly on browser.
+Prettier now also comes as ES modules, which can be directly used in modern browsers:
 
 ```js
 import prettier from "https://unpkg.com/prettier/esm/standalone.mjs";

diff --git a/changelog_unreleased/cli/pr-9298.md b/changelog_unreleased/cli/pr-9298.md
@@ -1,4 +1,4 @@
-#### Fix error on dir or file that name is a number (#9298 by @fisker)
+#### Fix: error on directories and files with numeric names (#9298 by @fisker)
 
 <!-- prettier-ignore -->
 ```console

diff --git a/changelog_unreleased/css/pr-9209.md b/changelog_unreleased/css/pr-9209.md
@@ -1,4 +1,4 @@
-#### Improve custom properties format (#9209 by @fisker)
+#### Improve formatting for custom properties (#9209 by @fisker)
 
 Thanks to [`PostCSS 8.0`](https://github.com/postcss/postcss/releases/tag/8.0.0), we can handle these edge cases on custom properties.
 

diff --git a/changelog_unreleased/flow/pr-9432.md b/changelog_unreleased/flow/pr-9432.md
@@ -1,4 +1,4 @@
-#### Flow Enums with unknown members (#9432 by @gkz)
+#### Enums with unknown members (#9432 by @gkz)
 
 Previously, was not supported. Now, the following is formatted:
 

diff --git a/changelog_unreleased/flow/pr-9457.md b/changelog_unreleased/flow/pr-9457.md
@@ -1,6 +1,4 @@
-#### Flow `this` annotations (#9457 by @dsainati1, #9489 by @fisker)
-
-Add support for `this` parameter annotations in Flow.
+#### `this` parameter annotations (#9457 by @dsainati1, #9489 by @fisker)
 
 <!-- prettier-ignore -->
 ```jsx

diff --git a/changelog_unreleased/flow/pr-9523.md b/changelog_unreleased/flow/pr-9523.md
@@ -0,0 +1,18 @@
+#### Support `BigIntLiteralTypeAnnotation` and `BigIntTypeAnnotation` (#9523 by @fisker)
+
+Add support for `BigIntLiteralTypeAnnotation` and `BigIntTypeAnnotation` in Flow.
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+const foo: bigint = 1n;
+const bar: baz<1n> = 1n;
+
+// Prettier stable
+Error: unknown type: "BigIntTypeAnnotation"
+    at ...
+
+// Prettier master
+const foo: bigint = 1n;
+const bar: baz<1n> = 1n;
+```
diff --git a/changelog_unreleased/flow/pr-9543.md b/changelog_unreleased/flow/pr-9543.md
@@ -0,0 +1,25 @@
+#### Treat more simple types as non-breaking in generic type annotations (#9543 by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+const foo1: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<symbol> = a
+const foo2: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<"STRING"> = a;
+const foo3: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<0> = a;
+
+// Prettier master
+const foo1: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<
+  symbol
+> = a;
+const foo2: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<
+  "STRING"
+> = a;
+const foo3: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<
+  0
+> = a;
+
+// Prettier stable (typescript and flow parser)
+const foo1: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<symbol> = a
+const foo2: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<"STRING"> = a;
+const foo3: Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo<0> = a;
+```
diff --git a/changelog_unreleased/flow/pr-9553.md b/changelog_unreleased/flow/pr-9553.md
@@ -0,0 +1,22 @@
+#### Fix missing parentheses around `prettier-ignore`d type assertions (#9553 by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+transform(
+  // prettier-ignore
+  (pointTransformer: (Point => Point))
+);
+
+// Prettier stable
+transform(
+  // prettier-ignore
+  pointTransformer: (Point => Point)
+);
+
+// Prettier master
+transform(
+  // prettier-ignore
+  (pointTransformer: (Point => Point))
+);
+```
diff --git a/changelog_unreleased/flow/pr-9563.md b/changelog_unreleased/flow/pr-9563.md
@@ -0,0 +1,22 @@
+#### Improve comment types detection (#9563 by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+foo/*::<bar>*/(baz);
+class Foo {
+  bar( data: Array<string>) {}
+}
+
+// Prettier master
+foo/*:: <bar> */(baz);
+class Foo {
+  bar(data: Array/*:: <string> */) {}
+}
+
+// Prettier stable
+foo/*:: <bar> */(baz);
+class Foo {
+  bar(data: Array<string>) {}
+}
+```
diff --git a/changelog_unreleased/javascript/pr-9000.md b/changelog_unreleased/javascript/pr-9000.md
@@ -1,5 +1,9 @@
-#### Add `espree` parser (#9000 by @fisker)
+#### [HIGHLIGHT]Add `espree` and `meriyah` parser (#9000, #9514 by @fisker)
 
-A new value for the `parser` option has been added: [`espree`](https://github.com/eslint/espree) - which is the [`ESLint`](https://github.com/eslint/eslint) default parser.
+Two new values for the `parser` option has been added:
 
-Note that `espree` only works for [ECMAScript Finished Proposals](https://github.com/tc39/proposals/blob/master/finished-proposals.md), and is stricter than the `babel` parser.
+- [`espree`](https://github.com/eslint/espree) - which is the default parser used by [`ESLint`](https://github.com/eslint/eslint).
+
+  Note that `espree` only works for [Finished ECMAScript Proposals](https://github.com/tc39/proposals/blob/master/finished-proposals.md), and is stricter than the `babel` parser.
+
+- [`meriyah`](https://github.com/meriyah/meriyah) - A [fast](https://meriyah.github.io/meriyah/performance/) JavaScript parser, successor of [cherow](https://github.com/cherow/cherow).
diff --git a/changelog_unreleased/javascript/pr-9278.md b/changelog_unreleased/javascript/pr-9278.md
@@ -1,4 +1,4 @@
-#### Fix comments inside template (#9278 by @fisker)
+#### Fix comments inside template literals with embedded syntax (#9278 by @fisker)
 
 <!-- prettier-ignore -->
 ```js

diff --git a/changelog_unreleased/javascript/pr-9341.md b/changelog_unreleased/javascript/pr-9341.md
@@ -1,6 +1,6 @@
-#### Improve formatting for `AssignmentExpression` with `ClassExpression` that has a long super class (#9341 by @sosukesuzuki)
+#### Improve formatting for assignments of classes with long superclass names (#9341 by @sosukesuzuki)
 
-This improves the formatting for [Google Closure Library Namespace](https://developers.google.com/closure/library/docs/introduction#names).
+This improves the formatting for [Google Closure Library namespaces](https://developers.google.com/closure/library/docs/introduction#names).
 
 <!-- prettier-ignore -->
 ```js

diff --git a/changelog_unreleased/javascript/pr-9345.md b/changelog_unreleased/javascript/pr-9345.md
@@ -1,4 +1,4 @@
-#### Fix placing leading comments for a body of while statement (#9345 by @sosukesuzuki)
+#### Fix placement of leading comments for bodies of `while` statements (#9345 by @sosukesuzuki)
 
 <!-- prettier-ignore -->
 ```js

diff --git a/changelog_unreleased/javascript/pr-9408.md b/changelog_unreleased/javascript/pr-9408.md
@@ -1,4 +1,4 @@
-#### Update to `@babel/parser` 7.12 (#9408, #9476 by @sosukesuzuki)
+#### Update to `@babel/parser` 7.12 (#9408, #9476, #9597 by @sosukesuzuki)
 
 Updated the JavaScript parser to [`@babel/parser` 7.12](https://babeljs.io/blog/2020/10/15/7.12.0). This fixes several bugs and supports some new syntax.
 
@@ -7,15 +7,11 @@ Updated the JavaScript parser to [`@babel/parser` 7.12](https://babeljs.io/blog/
 [The "module attributes" proposal supported on 2.1](https://prettier.io/blog/2020/08/24/2.1.0.html#support-es-module-attributes-and-json-modules-8436httpsgithubcomprettierprettierpull8436-by-fiskerhttpsgithubcomfisker) has been significantly changed and also renamed to "import assertions".
 
 ```js
-import json from "./foo.json" assert { type: "json" };
+import foo from "./foo.json" assert { type: "json" };
 ```
 
 ##### Support imports and exports with string names
 
-<!-- TODO: Remove if the bug is fixed -->
-
-Due to a [bug in `@babel/parser`](https://github.com/babel/babel/issues/12209), Prettier can only use exports, but that will be fixed.
-
 ```js
 let happy = "happy";
 export { happy as "😃" };

diff --git a/changelog_unreleased/javascript/pr-9431.md b/changelog_unreleased/javascript/pr-9431.md
@@ -1,4 +1,4 @@
-#### Keep html and markdown invalid template literals as it is (#9431 by @fisker)
+#### Keep HTML and Markdown invalid template literals as is (#9431 by @fisker)
 
 <!-- prettier-ignore -->
 ```js

diff --git a/changelog_unreleased/javascript/pr-9435.md b/changelog_unreleased/javascript/pr-9435.md
@@ -1,4 +1,4 @@
-#### Fix `import {a as a}` and `export {a as a}` format (#9435 by @fisker)
+#### Fix formatting for `import {a as a}` and `export {a as a}` (#9435 by @fisker)
 
 <!-- prettier-ignore -->
 ```js

diff --git a/changelog_unreleased/markdown/pr-8786.md b/changelog_unreleased/markdown/pr-8786.md
@@ -1,4 +1,4 @@
-#### Fix missing blank lines in fenced code block without end mark ([#8786](https://github.com/prettier/prettier/pull/8786) by [@fisker](https://github.com/fisker))
+#### Fix missing blank lines in fenced code blocks lacking the closing fence ([#8786](https://github.com/prettier/prettier/pull/8786) by [@fisker](https://github.com/fisker))
 
 <!-- prettier-ignore -->
 ```markdown

diff --git a/changelog_unreleased/markdown/pr-9275.md b/changelog_unreleased/markdown/pr-9275.md
@@ -1,4 +1,4 @@
-#### Add support for [[wiki-style]] links in markdown (#9275 by @iamrecursion)
+#### Add support for `[[wiki-style]]` links (#9275 by @iamrecursion)
 
 1.  Support for `[[wiki-style]]` links ensures that they do not get broken by
     the prettier formatting by being wrapped over multiple lines.

diff --git a/changelog_unreleased/mdx/pr-9267.md b/changelog_unreleased/mdx/pr-9267.md
@@ -1,4 +1,4 @@
-#### Fix JSX format (#9267 by @fisker)
+#### Fix extra empty lines in JSX (#9267 by @fisker)
 
 <!-- prettier-ignore -->
 ```markdown

diff --git a/changelog_unreleased/typescript/pr-9318.md b/changelog_unreleased/typescript/pr-9318.md
@@ -1,4 +1,4 @@
-#### Preserve a last separator for ignored object and interface types (#9318 by @sosukesuzuki)
+#### Preserve the last separator in ignored object types and interfaces (#9318 by @sosukesuzuki)
 
 <!-- prettier-ignore -->
 ```ts

diff --git a/changelog_unreleased/typescript/pr-9473.md b/changelog_unreleased/typescript/pr-9473.md
@@ -1,4 +1,4 @@
-#### Support TypeScript 4.1 via Babel (#9473 by @sosukesuzuki)
+#### [HIGHLIGHT]Support TypeScript 4.1 via Babel (#9473 by @sosukesuzuki)
 
 `--parser=babel-ts` is required.
 

diff --git a/changelog_unreleased/typescript/pr-9484.md b/changelog_unreleased/typescript/pr-9484.md
@@ -1,4 +1,4 @@
-#### Add parens to object value that it's an assignment (#9484 by @fisker)
+#### Add parens around assignments in object literal properties (#9484 by @fisker)
 
 <!-- prettier-ignore -->
 ```ts

diff --git a/changelog_unreleased/typescript/pr-9521.md b/changelog_unreleased/typescript/pr-9521.md
@@ -0,0 +1,25 @@
+#### Fix inconsistencies in formatting of types between `typescript` and `flow` (#9521 by @fisker)
+
+<!-- prettier-ignore -->
+```ts
+// Input
+const name: SomeGeneric<
+  Pick<Config, "ONE_LONG_PROP" | "ANOTHER_LONG_PROP">
+> = null;
+
+// Prettier master (--parser=typescript)
+const name: SomeGeneric<Pick<
+  Config,
+  "ONE_LONG_PROP" | "ANOTHER_LONG_PROP"
+>> = null;
+
+// Prettier master (--parser=flow)
+const name: SomeGeneric<
+  Pick<Config, "ONE_LONG_PROP" | "ANOTHER_LONG_PROP">
+> = null;
+
+// Prettier stable (typescript and flow parser)
+const name: SomeGeneric<
+  Pick<Config, "ONE_LONG_PROP" | "ANOTHER_LONG_PROP">
+> = null;
+```
diff --git a/changelog_unreleased/vue/pr-9225.md b/changelog_unreleased/vue/pr-9225.md
@@ -1,4 +1,4 @@
-#### Fix inconsistent `v-for` format (#9225 by @zweimach)
+#### Fix inconsistent formatting for `v-for` (#9225 by @zweimach)
 
 <!-- prettier-ignore -->
 ```vue