[][src]Crate strum


Build Status Latest Version Rust Documentation

Strum is a set of macros and traits for working with enums and strings easier in Rust.

The full version of the README can be found on Github.

Including Strum in Your Project

Import strum and strum_macros into your project by adding the following lines to your Cargo.toml. Strum_macros contains the macros needed to derive all the traits in Strum.

strum = "0.15.0"
strum_macros = "0.15.0"

And add these lines to the root of your project, either lib.rs or main.rs.

// Strum contains all the trait definitions
extern crate strum;
extern crate strum_macros;

Strum Macros

Strum has implemented the following macros:

Macro Description
EnumString Converts strings to enum variants based on their name
Display Converts enum variants to strings
AsRefStr Converts enum variants to &'static str
IntoStaticStr Implements From<MyEnum> for &'static str on an enum
EnumIter Creates a new type that iterates of the variants of an enum.
EnumProperty Add custom properties to enum variants.
EnumMessage Add a verbose message to an enum variant.
EnumDiscriminants Generate a new type with only the discriminant names.
EnumCount Add a constant usize equal to the number of variantes.



The ParseError enum is a collection of all the possible reasons an enum can fail to parse from a string.



A cheap reference-to-reference conversion. Used to convert a value to a reference value with 'static lifetime within generic code. #[deprecated(since="0.13.0", note="please use #[derive(IntoStaticStr)] instead")]


A trait for capturing the number of variants in Enum. This trait can be autoderived by strum_macros.


Associates additional pieces of information with an Enum. This can be autoimplemented by deriving EnumMessage and annotating your variants with `#[strum(message="...")].


EnumProperty is a trait that makes it possible to store additional information with enum variants. This trait is designed to be used with the macro of the same name in the strum_macros crate. Currently, the only string literals are supported in attributes, the other methods will be implemented as additional attribute types become stabilized.


This trait designates that an Enum can be iterated over. It can be auto generated using strum_macros on your behalf.