module
variant
Defines a Variant type.
You can use this type to implement variant/sum types. For example:
from utils import Variant
alias IntOrString = Variant[Int, String]
fn to_string(inout x: IntOrString) -> String:
if x.isa[String]():
return x[String][]
# x.isa[Int]()
return str(x[Int])[]
# They have to be mutable for now, and implement CollectionElement
var an_int = IntOrString(4)
var a_string = IntOrString(String("I'm a string!"))
var who_knows = IntOrString(0)
import random
if random.random_ui64(0, 1):
who_knows.set[String]("I'm actually a string too!")
print(to_string(an_int))
print(to_string(a_string))
print(to_string(who_knows))
Structs
-
Variant
: A runtime-variant type.
Was this page helpful?
Thank you! We'll create more content like this.
Thank you for helping us improve!
If you'd like to share more information, please report an issue on GitHub
😔 What went wrong?