Open Radar

 
Summary:
The function returned from a curried function/method ignores the _ to omit external parameter names, and must always be called with all parameter names supplied.


Steps to Reproduce:
1. Attempt to compile this code:

class C {
	func f(x: Int)(y: Int, _ z: Int) -> Int {
		return 0
	}
}

let g = C().f(1)
let h = g(1, 1)


Expected Results:
I expected it to compile.


Actual Results:
It errors:

error: missing argument labels 'y:z:' in call


Regression:
N/A


Notes:
Giving the external name for y as _ causes a warning (extraneous ‘_’) but doesn’t otherwise change the behaviour, i.e. it still errors.

There doesn’t appear to be any way to omit the labels.