async function checkRegistrations()

in server/src/lsifServer.ts [167:198]

32 lines of code
5 McCabe index (conditional complexity)


async function checkRegistrations(): Promise<void> {
	if (databases.size === 0 && registrations !== undefined) {
		registrations.then(unregister => unregister.dispose(), error => connection.console.error('Failed to unregister listeners.'));
		registrations = undefined;
		return;
	}
	if (databases.size >= 1 && registrations === undefined) {
		let documentSelector: DocumentSelector = [
			{ scheme: 'lsif', exclusive: true } as DocumentFilter
		];
		let toRegister: BulkRegistration = BulkRegistration.create();
		toRegister.add(DocumentSymbolRequest.type, {
			documentSelector
		});
		toRegister.add(FoldingRangeRequest.type, {
			documentSelector
		});
		toRegister.add(DefinitionRequest.type, {
			documentSelector
		});
		toRegister.add(DeclarationRequest.type, {
			documentSelector
		});
		toRegister.add(HoverRequest.type, {
			documentSelector
		});
		toRegister.add(ReferencesRequest.type, {
			documentSelector
		});
		registrations = connection.client.register(toRegister);
	}
}