switch-functional/build/src/case.d.ts

Functional switch statement

import type { AnyConditions, AnyReturnValues, FinalReturnValue, Input, Options, Resolved, ReturnValue, Switch } from './types.js';
/**
 * Return value of `switchFunctional()` and `switchFunctional.case()`
 */
export declare const chain: <FinalReturnValues extends FinalReturnValue = never>(resolved: Resolved, finalValue?: FinalReturnValues) => <OriginalInput extends Input, CustomCondition = never, CustomReturnValues extends readonly unknown[] = never, StrictReturnValue extends ReturnValue<OriginalInput> = never>(input: OriginalInput, options?: Options<CustomCondition, CustomReturnValues, OriginalInput, StrictReturnValue>) => {
    /**
     * If the `input` matches the `conditions`, the final return value will be
     * `caseReturnValue`.
     *
     * `caseReturnValue` can optionally be a function taking the `input` as
     * argument.
     */
    case: <NewReturnValue extends ReturnValue<OriginalInput> = never>(conditions: AnyConditions<CustomCondition, OriginalInput>, ...caseReturnValues: AnyReturnValues<CustomReturnValues, OriginalInput, NewReturnValue>) => Switch<FinalReturnValues | ((NewReturnValue[] extends never[] ? StrictReturnValue : NewReturnValue) extends infer T ? T extends (NewReturnValue[] extends never[] ? StrictReturnValue : NewReturnValue) ? T extends (...args: readonly never[]) => unknown ? ReturnType<T> : T : never : never), CustomCondition, CustomReturnValues, OriginalInput, StrictReturnValue>;
    /**
     * If one of the `.case()` statements matched, returns its
     * `caseReturnValue`. Else, returns `defaultReturnValue`.
     *
     * `defaultReturnValue` can optionally be a function taking the `input` as
     * argument.
     */
    default: <NewReturnValue extends ReturnValue<OriginalInput> = never>(...defaultReturnValues: AnyReturnValues<CustomReturnValues, OriginalInput, NewReturnValue>) => NonNullable<FinalReturnValues> | ((NewReturnValue[] extends never[] ? StrictReturnValue : NewReturnValue) extends infer T ? T extends (NewReturnValue[] extends never[] ? StrictReturnValue : NewReturnValue) ? T extends (...args: readonly never[]) => unknown ? ReturnType<T> : T : never : never);
};