On Fri, Oct 2, 2020, 10:53 Jason Ekstrand <ja...@jlekstrand.net> wrote:
> > 2. Rust's enums look awesome but are only mostly awesome: > a. Pattern matching on them can lead to some pretty deep > indentation which is a bit annoying. > b. There's no good way to have multiple cases handled by the same > code like you can with a C switch; you have to either repeat it or > break it out into a generic helper. > You can use | in match which could help with 2.b: https://doc.rust-lang.org/reference/expressions/match-expr.html example: match make_my_enum() { B { strv: s, .. } | C(MyStruct(s)) => println!("B or C: the string is {}", s), A(_) => {} } struct MyStruct(String); enum MyEnum { A(String), B { intv: i32, strv: String, }, C(MyStruct), } Jacob Lifshay
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