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2b1fb91a55
Hermes parser is the preferred parser for Flow code going forward. We need to upgrade to this parser to support new Flow syntax like function `this` context type annotations or `ObjectType['prop']` syntax. Unfortunately, there's quite a few upgrades here to make it work somehow (dependencies between the changes) - ~Upgrade `eslint` to `8.*`~ reverted this as the React eslint plugin tests depend on the older version and there's a [yarn bug](https://github.com/yarnpkg/yarn/issues/6285) that prevents `devDependencies` and `peerDependencies` to different versions. - Remove `eslint-config-fbjs` preset dependency and inline the rules, imho this makes it a lot clearer what the rules are. - Remove the turned off `jsx-a11y/*` rules and it's dependency instead of inlining those from the `fbjs` config. - Update parser and dependency from `babel-eslint` to `hermes-eslint`. - `ft-flow/no-unused-expressions` rule replaces `no-unused-expressions` which now allows standalone type asserts, e.g. `(foo: number);` - Bunch of globals added to the eslint config - Disabled `no-redeclare`, seems like the eslint upgrade started making this more precise and warn against re-defined globals like `__EXPERIMENTAL__` (in rollup scripts) or `fetch` (when importing fetch from node-fetch). - Minor lint fixes like duplicate keys in objects.
64 lines
1.4 KiB
JavaScript
64 lines
1.4 KiB
JavaScript
'use strict';
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module.exports = {
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env: {
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commonjs: true,
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browser: true,
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},
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globals: {
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// ES6
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Map: 'readonly',
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Set: 'readonly',
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Symbol: 'readonly',
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Proxy: 'readonly',
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WeakMap: 'readonly',
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WeakSet: 'readonly',
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Uint16Array: 'readonly',
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Reflect: 'readonly',
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globalThis: 'readonly',
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// Vendor specific
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MSApp: 'readonly',
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__REACT_DEVTOOLS_GLOBAL_HOOK__: 'readonly',
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// FB
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__DEV__: 'readonly',
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// Node.js Server Rendering
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setImmediate: 'readonly',
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Buffer: 'readonly',
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// Trusted Types
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trustedTypes: 'readonly',
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// Scheduler profiling
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Int32Array: 'readonly',
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ArrayBuffer: 'readonly',
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TaskController: 'readonly',
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reportError: 'readonly',
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// Flight
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Uint8Array: 'readonly',
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Promise: 'readonly',
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// Temp
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AsyncLocalStorage: 'readonly',
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// jest
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jest: 'readonly',
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// act
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IS_REACT_ACT_ENVIRONMENT: 'readonly',
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},
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parserOptions: {
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ecmaVersion: 5,
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sourceType: 'script',
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},
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rules: {
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'no-undef': 'error',
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'no-shadow-restricted-names': 'error',
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},
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// These plugins aren't used, but eslint complains if an eslint-ignore comment
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// references unused plugins. An alternate approach could be to strip
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// eslint-ignore comments as part of the build.
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plugins: ['ft-flow', 'jest', 'no-for-of-loops', 'react', 'react-internal'],
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};
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