Derive Macro strum_macros::EnumVariantNames
source · #[derive(EnumVariantNames)]
{
// Attributes available to this derive:
#[strum]
}
Expand description
Implements Strum::VariantNames
which adds an associated constant VARIANTS
which is an array of discriminant names.
Adds an impl
block for the enum
that adds a static VARIANTS
array of &'static str
that are the discriminant names.
This will respect the serialize_all
attribute on the enum
(like #[strum(serialize_all = "snake_case")]
.
// import the macros needed
use strum_macros::{EnumString, EnumVariantNames};
// You need to import the trait, to have access to VARIANTS
use strum::VariantNames;
#[derive(Debug, EnumString, EnumVariantNames)]
#[strum(serialize_all = "kebab_case")]
enum Color {
Red,
Blue,
Yellow,
RebeccaPurple,
}
assert_eq!(["red", "blue", "yellow", "rebecca-purple"], Color::VARIANTS);