@rickosborne/rebound/guard-bounded.d.ts

Rick Osborne's utilities for working with bounded numbers

import type { ReboundedFromChecked, TypedCheckedBounds } from "./spec.js";
export interface GuardExact<T extends number> extends TypedCheckedBounds {
    (this: void, value: unknown): value is T;
}
export interface GuardIfPresent<T extends number> extends TypedCheckedBounds {
    (this: void, value: unknown): value is T | undefined | null;
}
export type IfIfPresent<IfPresent extends boolean, T> = IfPresent extends true ? (T | null | undefined) : T;
export type If<IfPresent extends boolean | undefined, T, U> = IfPresent extends true ? T : U;
export declare const validateBounded: <IsLowerInc extends boolean, Lower extends number, IsInt extends boolean, Upper extends number, IsUpperInc extends boolean, IfPresent extends boolean>(isLowerInc: IsLowerInc, lower: Lower, isInt: IsInt, upper: Upper, isUpperInc: IsUpperInc, ifPresent: IfPresent, value: unknown) => value is IfIfPresent<IfPresent, number & ReboundedFromChecked<IsLowerInc, Lower, IsInt, Upper, IsUpperInc>>;
/**
 * Generate a guard for the branded number type matching the given spec.
 */
export declare function guardForBounds<Bounds extends Omit<TypedCheckedBounds, "typeName">, N extends number, IfPresent extends boolean>(bounds: Bounds, typeName: string, fnName: string, ifPresent: IfPresent): If<IfPresent, GuardIfPresent<N>, GuardExact<N>>;
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