Oli Sturm
58 lines
1.5 KiB
TypeScript
58 lines
1.5 KiB
TypeScript
export type Success<T> = {
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isSuccess: true;
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isFailure: false;
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value: T;
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};
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export type Failure<E> = {
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isSuccess: false;
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isFailure: true;
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error: E;
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};
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export type Result<T, E> = Success<T> | Failure<E>;
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export declare const ok: <T, E>(value: T) => Result<T, E>;
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export declare const fail: <T, E>(error: E) => Result<T, E>;
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export declare const catchResult: <T, E>(
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f: () => T,
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exceptionMapper: (err: Error) => E
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) => Result<T, E>;
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export declare const bind: <TIn, TOut, E>(
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binder: (value: TIn) => Result<TOut, E>
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) => (result: Result<TIn, E>) => Result<TOut, E>;
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export declare const map: <TIn, TOut, E>(
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mapper: (value: TIn) => TOut
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) => (result: Result<TIn, E>) => Result<TOut, E>;
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export declare const tap: <T, E>(
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action: (value: T) => void
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) => (result: Result<T, E>) => Result<T, E>;
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export declare const tapError: <T, E>(
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action: (error: E) => void
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) => (result: Result<T, E>) => Result<T, E>;
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export declare const mapError: <T, EIn, EOut>(
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mapper: (error: EIn) => EOut
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) => (result: Result<T, EIn>) => Result<T, EOut>;
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export declare const match: <T, E, TResult>(
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onSuccess: (value: T) => TResult,
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onFailure: (error: E) => TResult
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) => (result: Result<T, E>) => TResult;
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export declare const switch_: <T, E>(
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onSuccess: (value: T) => void,
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onFailure: (error: E) => void
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) => (result: Result<T, E>) => void;
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export declare const pipe: <T, E>(
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result: Result<T, E>,
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...fns: Array<(arg: Result<any, any>) => Result<any, any>>
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) => Result<any, any>;
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