macro_rules! variant { ($string:literal) => { ... }; }
Expand description
A macro allowing for compile-time construction of valid Variant
subtags.
§Examples
Parsing errors don’t have to be handled at runtime:
assert_eq!(
icu_locid::subtags::variant!("posix"),
"posix".parse::<icu_locid::subtags::Variant>().unwrap()
);
Invalid input is a compile failure:
ⓘ
icu_locid::subtags::variant!("yes");