// pathfinder/client/src/utils.ts
//
// Copyright © 2017 The Pathfinder Project Developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

export const UINT32_SIZE: number = 4;

export function panic(message: string): never {
    throw new PathfinderError(message);
}

export function assert(value: boolean, message: string) {
    if (!value)
        panic(message);
}

export function expectNotNull<T>(value: T | null, message: string): T {
    if (value === null)
        throw new PathfinderError(message);
    return value;
}

export function unwrapNull<T>(value: T | null): T {
    return expectNotNull(value, "Unexpected null!");
}

export class PathfinderError extends Error {
    constructor(message?: string | undefined) {
        super(message);
    }
}