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Add '??' overloadable operator #45

Merged

BastianBlokland merged 1 commit into master from feature/qmarkqmark-operator

Jan 8, 2020

Owner

BastianBlokland commented Jan 8, 2020

Adds ?? as a user overloadable operator.

struct None
union Option{T} = T, None

fun ??{T}(Option{T} o, T default)
  o is T t ? t : default

fun isDigit(char c)
  c >= '0' && c <= '9'

fun parseInt(char c) -> Option{int}
  if isDigit(c) -> int(c) - '0'
  else          -> None()

print(parseInt('3') ?? -1)


          Add '??' overloadable operator

adacc52

BastianBlokland merged commit 532a3cf into master

BastianBlokland deleted the feature/qmarkqmark-operator branch

January 8, 2020 21:37

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