ProviderResult

typealias ProviderResult<T> = PromiseResult<T?>(source)

A provider result represents the values a provider, like the {@linkcode HoverProvider}, may return. For once this is the actual result type T, like Hover, or a thenable that resolves to that type T. In addition, null and undefined can be returned - either directly or from a thenable.

The snippets below are all valid implementations of the {@linkcode HoverProvider}:

let a: HoverProvider = {
	provideHover(doc, pos, token): ProviderResult<Hover> {
		return new Hover('Hello World');
	}
}

let b: HoverProvider = {
	provideHover(doc, pos, token): ProviderResult<Hover> {
		return new Promise(resolve => {
			resolve(new Hover('Hello World'));
	 	});
	}
}

let c: HoverProvider = {
	provideHover(doc, pos, token): ProviderResult<Hover> {
		return; // undefined
	}
}

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