E4084

The label is supplied twice when calling a function with labelled parameters.

Erroneous Example

///|
pub fn f(a~ : Int) -> Unit {
  println("Hello, \{a}")
}

///|
test {
  f(a=0, a=1)
}

Suggestion

If the call only needs one labelled argument, provide that label once.

///|
pub fn f(a~ : Int) -> Unit {
  println("Hello, \{a}")
}

///|
test {
  f(a=0)
}

If the function has multiple labelled parameters and the duplicate label came from a typo, change the duplicated label to the correct one.

///|
pub fn g(a~ : Int, b~ : Int) -> Unit {
  println("Hello, \{a} and \{b}")
}

///|
test {
  g(a=0, b=1)
}