UNPKG

react-native-vision-camera

Version:

A powerful, high-performance React Native Camera library.

35 lines 1.25 kB
/** * Create a lazily-imported module proxy. * This is useful for lazily requiring optional dependencies. */ export const createModuleProxy = getModule => { const holder = { module: undefined }; const proxy = new Proxy(holder, { get: (target, property) => { if (property === '$$typeof') { // If inlineRequires is enabled, Metro will look up all imports // with the $$typeof operator. In this case, this will throw the // `OptionalDependencyNotInstalledError` error because we try to access the module // even though we are not using it (Metro does it), so instead we return undefined // to bail out of inlineRequires here. // See https://github.com/mrousavy/react-native-vision-camera/pull/2953 return undefined; } if (target.module == null) { // lazy initialize module via require() // caller needs to make sure the require() call is wrapped in a try/catch target.module = getModule(); } return target.module[property]; } }); return proxy; }; export class OptionalDependencyNotInstalledError extends Error { constructor(name) { super(`${name} is not installed!`); } } //# sourceMappingURL=ModuleProxy.js.map