@lodestar/utils/lib/types.d.ts

Utilities required across multiple lodestar packages

/**
 * Recursively make all properties optional
 */
type Primitive = string | number | boolean | bigint | symbol | null | undefined;
type Builtin = Primitive | Date | Error | RegExp;
export type RecursivePartial<T> = T extends Builtin ? T : T extends ReadonlyArray<infer U> ? ReadonlyArray<RecursivePartial<U>> : T extends Array<infer U> ? Array<RecursivePartial<U>> : T extends Map<infer K, infer V> ? Map<RecursivePartial<K>, RecursivePartial<V>> : T extends Set<infer U> ? Set<RecursivePartial<U>> : T extends object ? {
    [P in keyof T]?: RecursivePartial<T[P]>;
} : T;
/** Type safe wrapper for Number constructor that takes 'any' */
export declare function bnToNum(bn: bigint): number;
export type NonEmptyArray<T> = [T, ...T[]];
/**
 * ArrayToTuple converts an `Array<T>` to `[T, ...T]`
 *
 * eg: `[1, 2, 3]` from type `number[]` to `[number, number, number]`
 */
export type ArrayToTuple<Tuple extends NonEmptyArray<unknown>> = {
    [Index in keyof Tuple]: Tuple[Index];
};
/**
 * Convert optional attributes of an object to required
 */
export type RequiredSelective<T, Keys extends keyof T> = T & {
    [K in Keys]-?: T[K];
};
export {};
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