0.3.4 - This version may not be safe as it has not been updated for a long time. Find out if your coding project uses this component and get notified of any reported security vulnerabilities with Meterian-X Open Source Security Platform
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MIT - MIT License
arg_enum! from clap
In Cargo.toml:
[dependencies]
arg_enum_proc_macro = "0.3"In the rust code:
use arg_enum_proc_macro::ArgEnum;
/// All the possible states of Foo
#[derive(ArgEnum)]
pub enum Foo {
/// Initial state
Unk,
/// Foo is on
On,
/// Foo is off
Off,
}It is possible to express an alias using the attribute arg_enum(alias = "AliasVariant").
The FromStr will map the "AliasVariant" string to the decorated enum variant:
/// All the possible states of Foo
#[derive(ArgEnum)]
pub enum Foo {
/// Initial state
Unk,
/// Foo is on
#[arg_enum(alias = "Up")]
On,
/// Foo is off
#[arg_enum(alias = "Down")]
Off,
}