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[prototype] typed i18n params #55

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[prototype] typed i18n params #55

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27 changes: 26 additions & 1 deletion src/types.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,32 @@ export type I18NFn<T = any> = {
): () => S extends G ? T[K][G] : string;
};

export type Params = {[key: string]: any};
// Recursive helper for finding path parameters
type KeyParam<Path extends string> =
Path extends `${infer L}{{${infer K}}}${infer R}`
? K | KeyParam<L> | KeyParam<R>
: never;
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Добавляется такая небольшая утилитка для поиска параметров в строке


export type unstable_I18NFn<T = any> = {
<K extends keyof T, G extends keyof T[K], S extends string>(keysetName: K, key: G | NoEnumLikeStringLiteral<S>, params?: Params<T[K][G]>): string;
keyset<K extends keyof T>(keysetName: K): <G extends keyof T[K], S extends string>(key: G | NoEnumLikeStringLiteral<S>, params?: Params<T[K][G]>) => string;
i18n<K extends keyof T, G extends keyof T[K], S extends string>(keysetName: K, key: G | NoEnumLikeStringLiteral<S>): () => string;
has<K extends keyof T>(keysetName: K, key: string): () => boolean;
bind(thisArg: any): <K extends keyof T, G extends keyof T[K], S extends string>(keysetName: K, key: G | NoEnumLikeStringLiteral<S>, params?: Params<T[K][G]>) => string;
bind<K extends keyof T>(thisArg: any, keysetName: K): <G extends keyof T[K], S extends string>(key: G | NoEnumLikeStringLiteral<S>, params?: Params<T[K][G]>) => string;
bind<K extends keyof T, G extends keyof T[K], S extends string>(thisArg: any, keysetName: K, key: G | NoEnumLikeStringLiteral<S>): (params?: Params<T[K][G]>) => string;
bind<K extends keyof T, G extends keyof T[K], S extends string>(thisArg: any, keysetName: K, key: G | NoEnumLikeStringLiteral<S>, params?: Params<T[K][G]>): () => string;
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тут меняется только возвращаемое значение оно всегда string

};

type StringKey = string;

export type Params<K extends (StringKey | PluralValue)> = Record<
K extends string
? KeyParam<K>
: KeyParam<K['zero']> | KeyParam<K['one']> | KeyParam<K['two']> | KeyParam<K['few']> | KeyParam<K['many']> | KeyParam<K['other']>
, any
>;

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и типизируются параметры


export type Pluralizer = (count: number, pluralForms: typeof PluralForm) => PluralForm;

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