9 releases (5 breaking)
0.6.1 | Dec 2, 2024 |
---|---|
0.6.0 | Oct 29, 2024 |
0.5.0 | Jun 14, 2024 |
0.4.1 | Mar 18, 2024 |
0.3.0 | Oct 13, 2023 |
#211 in Procedural macros
1,625 downloads per month
Used in 3 crates
21KB
335 lines
enum-stringify
Set of macros (only one for now) to generate a string representation of an enum. When using
#[derive(EnumStringify)]
on an enum, it will implement std::fmt::Display
, TryFrom<&str>
,
TryFrom<String>
and std::str::FromStr
for it. It will use the name of the enum variant as the
string representation.
Usage
use enum_stringify::EnumStringify;
#[derive(EnumStringify)]
enum MyEnum {
Variant1,
Variant2,
Variant3,
}
fn main() {
println!("{}", MyEnum::Variant1); // Prints "Variant1"
assert_eq!(MyEnum::Variant1.to_string(), "Variant1");
assert_eq!(MyEnum::try_from("Variant2").unwrap(), MyEnum::Variant2);
assert_eq!(MyEnum::try_from("Variant3".to_string()).unwrap(), MyEnum::Variant3);
assert_eq!(MyEnum::from_str("Variant1").unwrap(), MyEnum::Variant1);
}
Custom string representation
You can customize the string representation of the enum by adding prefixes or/and suffixes to the variants and also changing the case of the string representation.
use enum_stringify::EnumStringify;
#[derive(EnumStringify)]
#[enum_stringify(prefix = "MyPrefix", suffix = "MySuffix", case = "upper_flat")]
enum MyEnum {
Variant1,
Variant2,
Variant3,
}
In this case the string representation of MyEnum::Variant1
will be MyPrefixVariant1MySuffix
(and
so on for the other variants).
Documentation and installation
See docs.rs for documentation. It is available on crates.io as well.
Dependencies
~0.6–1.1MB
~21K SLoC