Declaration-Like Argument Blocks

[anandabits (Matthew Johnson)]

@technogen

I wonder if the solution to the general problem of “passing too many things” will end up manifested as an “anonymous struct” feature where you’ll be able to declare an anonymous struct and pass it to a function which will decompose that struct into its parameters...

Anonymous Structs

@Nickolas_Pohilets and I are working on a proposal to introduce anonymous structs in Swift. This pitch reduces the syntactic burden for users of APIs that use protocol-oriented design. In many cases the usage-site syntactic weight becomes on par with that of closure-based APIs. We're looking forward to your feedback! For anyone interested in background reading, this proposal is a result of conversation that happened in the Equality of functions thread. I will be maintaining an updated draft…