@duydang2311/attempt/dist/index.js

Go-like error handling for JavaScript and TypeScript

// lib/attempt.ts
var symbol = Symbol("attempt");
var attemptSync = (fn) => {
  return (mapException) => {
    try {
      return attempt.ok(fn());
    } catch (e) {
      return attempt.fail(mapException ? mapException(e) : e);
    }
  };
};
var attemptAsync = (fn) => {
  return async (mapException) => {
    try {
      const ret = await fn();
      if (isAttempt(ret)) {
        return ret;
      }
      return attempt.ok(ret);
    } catch (e) {
      return attempt.fail(mapException ? mapException(e) : e);
    }
  };
};
var attemptOk = (data) => ({
  [symbol]: true,
  ok: true,
  failed: false,
  data
});
var attemptFail = (error) => ({
  [symbol]: true,
  ok: false,
  failed: true,
  error
});
var attempt = {
  sync: attemptSync,
  async: attemptAsync,
  ok: attemptOk,
  fail: attemptFail
};
var isAttempt = (value) => {
  return typeof value === "object" && value !== null && symbol in value;
};
export {
  attemptSync,
  attemptOk,
  attemptFail,
  attemptAsync,
  attempt
};