Enumeration variants can be constructed similarly to structs expressions, using a path to an enum variant instead of to a struct:

# #![allow(unused_variables)]
#fn main() {
# enum Message {
#     Quit,
#     WriteString(String),
#     Move { x: i32, y: i32 },
# }
let q = Message::Quit;
let w = Message::WriteString("Some string".to_string());
let m = Message::Move { x: 50, y: 200 };
#}

Being more specific, the syntax of an enum variant is:

• a path expression, when the variant has no fields, like Message::Quit.
• a struct expression, when it is a struct enum variant, like Message::Move { x: 50, y: 200 }.
• a call expression, when it is a tuple enum variant, like Message::WriteString("Some string".to_string()).