packages/eslint-config-fbjs/shared.js

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

// The jshint code had more globals, which may have had something to do with
// machine-generated code. I couldn't find references with tbgs.
//
// Values of true mean the global may be modified. Values of false represent
// constants.
const globals = {
  __DEV__: true,
  // Haste-defined variables
  require: true,
  requireDynamic: true,
  requireLazy: true,
  // more haste variables are defined in getConfig for modules

  // Workarounds for https://github.com/babel/babel-eslint/issues/130
  // no-undef errors incorrectly on these global flow types
  // https://fburl.com/flow-react-defs
  ReactComponent: false,
  ReactClass: false,
  ReactElement: false,
  ReactPropsCheckType: false,
  ReactPropsChainableTypeChecker: false,
  ReactPropTypes: false,
  SyntheticEvent: false,
  SyntheticClipboardEvent: false,
  SyntheticCompositionEvent: false,
  SyntheticInputEvent: false,
  SyntheticUIEvent: false,
  SyntheticFocusEvent: false,
  SyntheticKeyboardEvent: false,
  SyntheticMouseEvent: false,
  SyntheticDragEvent: false,
  SyntheticWheelEvent: false,
  SyntheticTouchEvent: false,
  // a bunch of types extracted from http://git.io/vOtv9
  // there's a bunch of overlap with browser globals, so we try to avoid
  // redefining some of those.
  $Either: false,
  $All: false,
  $Tuple: false,
  $Supertype: false,
  $Subtype: false,
  $Shape: false,
  $Diff: false,
  $Keys: false,
  $Enum: false,
  $Exports: false,
  Class: false,
  function: false,
  Iterable: false,
  // suppress types
  $FlowIssue: false,
  $FlowFixMe: false,
  $FixMe: false,
  // https://fburl.com/flow-core-defs
  Iterator: false,
  IteratorResult: false,
  $await: false,
  ArrayBufferView: false,
  // https://fburl.com/flow-fb-defs
  FbtResult: false,
  $jsx: false,
  FBID: false,
  AdAccountID: false,
  UID: false,
  ReactNode: false,
  Fbt: false,
  // https://fburl.com/flow-liverail-defs
  LRID: false,
  // https://fburl.com/flow-powereditor-def
  UkiAccount: false,
  UkiAdgroup: false,
  UkiCampaign: false,
  UkiCampaignGroup: false,
  // some of this maybe should be handled by the npm globals module, but it
  // doesn't have proper WebRTC support yet
  // https://fburl.com/flow-webrtc-defs
  RTCConfiguration: false,
  RTCIceServer: false,
  RTCOfferOptions: false,
  RTCStatsReport: false,
  RTCStatsCallback: false,
  RTCPeerConnection: false,
  RTCPeerConnectionErrorCallback: false,
  RTCSessionDescription: false,
  RTCSessionDescriptionInit: false,
  RTCSessionDescriptionCallback: false,
  RTCIceCandidate: false,
  RTCIceCandidateInit: false,
  RTCPeerConnectionIceEvent: false,
  RTCPeerConnectionIceEventInit: false,
  RTCDataChannel: false,
  RTCDataChannelInit: false,
  RTCDataChannelEvent: false,
  RTCDataChannelEventInit: false,
};

// This pattern will match these texts:
//   var Foo = require('Foo');
//   var Bar = require('Foo').Bar;
//   var BarFoo = require(Bar + 'Foo');
//   var {Bar, Foo} = require('Foo');
//   import type {Bar, Foo} from 'Foo';
// Also supports 'let' and 'const'.
const variableNamePattern = String.raw`\s*[a-zA-Z_$][a-zA-Z_$\d]*\s*`;
const maxLenIgnorePattern = String.raw`^(?:var|let|const|import type)\s+` +
  '{?' + variableNamePattern + '(?:,' + variableNamePattern + ')*}?' +
  String.raw`\s*(?:=\s*require\(|from)[a-zA-Z_+./"'\s\d\-]+\)?[^;\n]*[;\n]`;


module.exports = {
  globals: globals,
  maxLenIgnorePattern: maxLenIgnorePattern,
};