FunctionCallable

@dynamicCallable
public struct FunctionCallable : Sendable

Structure enabling the following syntactic sugar for user functions:

guard case let .int32(sum) = try await user.functions.sum([1, 2, 3, 4, 5]) else {
   return
}

The dynamic member name (sum in the above example) is provided by @dynamicMemberLookup which is directly associated with the function name.

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  • The implementation of @dynamicCallable that allows for Future<AnyBSON, Error> callable return.

    let cancellable = user.functions.sum([1, 2, 3, 4, 5])
   .sink(receiveCompletion: { result in
}, receiveValue: { value in
   // Returned value from function
})

    Declaration

    Swift

    @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
@preconcurrency
public func dynamicallyCall(withArguments args: [[AnyBSON]]) -> Future<AnyBSON, Error>
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  • The implementation of @dynamicMemberLookup that allows for async await callable return.

    guard case let .int32(sum) = try await user.functions.sum([1, 2, 3, 4, 5]) else {
   return
}

    Declaration

    Swift

    public func dynamicallyCall(withArguments args: [[AnyBSON]]) async throws -> AnyBSON
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