@benev/slate
Version:
frontend web stuff
20 lines (19 loc) • 961 B
TypeScript
export type Requirement<R, T> = (r: R) => T;
export type RequirementGroup<R, T> = {
[key: string]: Requirement<R, T>;
};
export type RequirementProvided<F extends Requirement<any, any>> = ReturnType<F>;
export type RequirementGroupProvided<G extends RequirementGroup<any, any>> = {
[P in keyof G]: RequirementProvided<G[P]>;
};
/**
* establish a pattern for creating many things that have a common requirement.
* - `const contextual = requirement<Context>()<Flipview<any>>`
* - now you can use `contextual` as a template for creating things that require context
* - `const MyView = contextual(context => flipview())`
* - in that example, the requirement enforces the types for context and the view
*/
export declare function requirement<R>(): <T>(fun: Requirement<R, T>) => Requirement<R, T>;
export declare namespace requirement {
var provide: <R>(r: R) => <G extends RequirementGroup<R, any>>(group: G) => RequirementGroupProvided<G>;
}