bundles.js — react Source File

Architecture documentation for bundles.js, a javascript file in the react codebase.

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'use strict';

const RELEASE_CHANNEL = process.env.RELEASE_CHANNEL;

const __EXPERIMENTAL__ =
  typeof RELEASE_CHANNEL === 'string'
    ? RELEASE_CHANNEL === 'experimental'
    : true;

const bundleTypes = {
  NODE_ES2015: 'NODE_ES2015',
  ESM_DEV: 'ESM_DEV',
  ESM_PROD: 'ESM_PROD',
  NODE_DEV: 'NODE_DEV',
  NODE_PROD: 'NODE_PROD',
  NODE_PROFILING: 'NODE_PROFILING',
  BUN_DEV: 'BUN_DEV',
  BUN_PROD: 'BUN_PROD',
  FB_WWW_DEV: 'FB_WWW_DEV',
  FB_WWW_PROD: 'FB_WWW_PROD',
  FB_WWW_PROFILING: 'FB_WWW_PROFILING',
  RN_OSS_DEV: 'RN_OSS_DEV',
  RN_OSS_PROD: 'RN_OSS_PROD',
  RN_OSS_PROFILING: 'RN_OSS_PROFILING',
  RN_FB_DEV: 'RN_FB_DEV',
  RN_FB_PROD: 'RN_FB_PROD',
  RN_FB_PROFILING: 'RN_FB_PROFILING',
  BROWSER_SCRIPT: 'BROWSER_SCRIPT',
  CJS_DTS: 'CJS_DTS',
  ESM_DTS: 'ESM_DTS',
};

const {
  NODE_ES2015,
  ESM_DEV,
  ESM_PROD,
  NODE_DEV,
  NODE_PROD,
  NODE_PROFILING,
  BUN_DEV,
  BUN_PROD,
  FB_WWW_DEV,
  FB_WWW_PROD,
  FB_WWW_PROFILING,
  RN_OSS_DEV,
  RN_OSS_PROD,
  RN_OSS_PROFILING,
  RN_FB_DEV,
  RN_FB_PROD,
  RN_FB_PROFILING,
  BROWSER_SCRIPT,
  CJS_DTS,
  ESM_DTS,
} = bundleTypes;

const moduleTypes = {
  // React
  ISOMORPHIC: 'ISOMORPHIC',
  // Individual renderers. They bundle the reconciler. (e.g. ReactDOM)
  RENDERER: 'RENDERER',
// ... (1300 more lines)