Previously: <https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160509/016982.html>
<http://discourse.natecook.com/t/proposal-allow-function-argument-type-to-be-omitted-when-passing-a-default-value-from-which-it-can-be-inferred/1540> > On 10 Mar 2017, at 21:40, Kilian Koeltzsch wrote: > > Hi all, > > I sent the message below to swift-users@ ~a day ago, but this might be a > better place to ask and gather some discussion. It is a rather minor > suggestion and I'm just looking for some opinions. > > Declaring a function that has default parameters currently looks like this: > > func foo(bar: String = "baz") { > print(bar) > } > > Now I'm wondering if there would be any problems if it were possible to omit > the type annotation for default params and let Swift's type inference handle > that. > > func foo(bar = "baz") { > print(bar) > } > > It feels to be equivalent to omitting type annotations with variable > declarations. Obviously more complex types would still require annotations > being specified. Off the top of my head I can't think of any negative > ramifications this might bring, be it in simple function/method declarations > or protocol extensions and elsewhere. > Any further input or examples for situations where this might cause issues > would be much appreciated :) > > Cheers, > Kilian
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