ts-data-forge/dist/functional/ternary-result/impl/ternary-result-map.d.mts

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import { type UnwrapErr, type UnwrapOk, type UnwrapWarn } from './types.mjs';
/**
 * Maps the Ok variant while leaving Warn/Err untouched.
 *
 * @example
 *
 * ```ts
 * const okNumber = TernaryResult.ok(5);
 *
 * const warnValue = TernaryResult.warn(5, 'slow');
 *
 * const errValue = TernaryResult.err('bad');
 *
 * const doubled = TernaryResult.map(okNumber, (value) => value * 2);
 *
 * const warnPassthrough = TernaryResult.map(
 *   warnValue,
 *   (value: number) => value * 2,
 * );
 *
 * const errPassthrough = TernaryResult.map(
 *   errValue,
 *   (value: number) => value * 2,
 * );
 *
 * assert.deepStrictEqual(doubled, TernaryResult.ok(10));
 *
 * assert.deepStrictEqual(warnPassthrough, TernaryResult.warn(10, 'slow'));
 *
 * assert.deepStrictEqual(errPassthrough, errValue);
 * ```
 */
export declare function map<R extends UnknownTernaryResult, S2>(result: R, mapFn: (value: UnwrapOk<R>) => S2): TernaryResult<S2, UnwrapErr<R>, UnwrapWarn<R>>;
export declare function map<S, S2>(mapFn: (value: S) => S2): <W, E>(result: TernaryResult<S, E, W>) => TernaryResult<S2, E, W>;
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