next
Version:
The React Framework
38 lines (37 loc) • 1.6 kB
JavaScript
import { isPlainObject } from '../shared/lib/is-plain-object';
import safeStringify from 'next/dist/compiled/safe-stable-stringify';
/**
* Checks whether the given value is a NextError.
* This can be used to print a more detailed error message with properties like `code` & `digest`.
*/ export default function isError(err) {
return typeof err === 'object' && err !== null && 'name' in err && 'message' in err;
}
export function getProperError(err) {
if (isError(err)) {
return err;
}
if (process.env.NODE_ENV === 'development') {
// provide better error for case where `throw undefined`
// is called in development
if (typeof err === 'undefined') {
return Object.defineProperty(new Error('An undefined error was thrown, ' + 'see here for more info: https://nextjs.org/docs/messages/threw-undefined'), "__NEXT_ERROR_CODE", {
value: "E98",
enumerable: false,
configurable: true
});
}
if (err === null) {
return Object.defineProperty(new Error('A null error was thrown, ' + 'see here for more info: https://nextjs.org/docs/messages/threw-undefined'), "__NEXT_ERROR_CODE", {
value: "E336",
enumerable: false,
configurable: true
});
}
}
return Object.defineProperty(new Error(isPlainObject(err) ? safeStringify(err) : err + ''), "__NEXT_ERROR_CODE", {
value: "E394",
enumerable: false,
configurable: true
});
}
//# sourceMappingURL=is-error.js.map