@lodestar/beacon-node/lib/util/wrapError.d.ts

A Typescript implementation of the beacon chain

export type Result<T> = {
    err: null;
    result: T;
} | {
    err: Error;
};
/**
 * Wraps a promise to return either an error or result
 * Useful for SyncChain code that must ensure in a sample code
 * ```ts
 * try {
 *   A()
 * } catch (e) {
 *   B()
 * }
 * ```
 * only EITHER fn A() and fn B() are called, but never both. In the snipped above
 * if A() throws, B() would be called.
 */
export declare function wrapError<T>(promise: Promise<T>): Promise<Result<T>>;
/**
 * Some functions may want to return a result and some warning typed as Error
 */
export type WarnResult<T, E extends Error> = {
    result: T;
    warnings: E[] | null;
};
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