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32 lines
764 B
32 lines
764 B
1 year ago
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declare const flagSymbol: unique symbol;
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declare function arg<T extends arg.Spec>(spec: T, options?: arg.Options): arg.Result<T>;
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declare namespace arg {
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export function flag<T>(fn: T): T & { [flagSymbol]: true };
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export const COUNT: Handler<number> & { [flagSymbol]: true };
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export type Handler <T = any> = (value: string, name: string, previousValue?: T) => T;
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export interface Spec {
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[key: string]: string | Handler | [Handler];
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}
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export type Result<T extends Spec> = { _: string[] } & {
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[K in keyof T]?: T[K] extends Handler
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? ReturnType<T[K]>
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: T[K] extends [Handler]
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? Array<ReturnType<T[K][0]>>
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: never
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};
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export interface Options {
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argv?: string[];
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permissive?: boolean;
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stopAtPositional?: boolean;
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}
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}
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export = arg;
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