react-native-filament
Version:
A real-time physically based 3D rendering engine for React Native
37 lines (36 loc) • 1.37 kB
JavaScript
// Copied from https://github.com/mrousavy/react-native-vision-camera/blob/main/package/src/dependencies/ModuleProxy.ts
/**
* 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!`);
}
}
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