option-t/esm/plain_result/from_promise_settled_result.js

A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

import { createOk, createErr } from './result.js';
/**
 *  Convert {@link PromiseSettledResult<T>} returned by {@link Promise.allSettled} to {@link Result}
 */
export function fromPromiseSettledResultToResult(input) {
    const status = input.status;
    switch (status) {
        case 'fulfilled': {
            const value = input.value;
            const okWrapped = createOk(value);
            return okWrapped;
        }
        case 'rejected': {
            const reason = input.reason;
            const errWrapped = createErr(reason);
            return errWrapped;
        }
        default: {
            const statusStr = String(status);
            const message = `\`PromiseSettledResult.status=${statusStr}\` is not supported`;
            throw new TypeError(message);
        }
    }
}