shithub: mc

ref: da5f858f60c9a8d52add2f60845483be2f4b416e
dir: /test/stdopt-mk.myr/

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use std

const f = {x
	if x == 123
		-> `std.Some 42
	else
		-> `std.None
	;;
}

const main = {
	var v
	
	v = f(123)
	match v
	`std.Some x:	-> x;;
	`std.None:	-> 123;;
	;;
}