29 lines
848 B
TypeScript
29 lines
848 B
TypeScript
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/**
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* Utility type for a class which can be called in addion to being used as a constructor.
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*/
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interface Invokeable<Args extends Array<any>, Instance> {
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(...args: Args): Instance;
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new (...args: Args): Instance;
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}
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/**
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* Wraps a constructor to not need the `new` keyword using a proxy.
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* Only used for data types.
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*
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* @param {ProxyConstructor} Class The class instance to wrap as invocable.
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* @returns {Proxy} Wrapped class instance.
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* @private
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*/
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export function classToInvokable<Args extends Array<any>, Instance extends object>(
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Class: new (...args: Args) => Instance
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): Invokeable<Args, Instance> {
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return new Proxy<Invokeable<Args, Instance>>(Class as any, {
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apply(_target, _thisArg, args: Args) {
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return new Class(...args);
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},
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construct(_target, args: Args) {
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return new Class(...args);
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}
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});
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}
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