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//!
//! enum-display is a crate for implementing [`std::fmt::Display`] on enum variants with macros.
//!
//! # Simple Example
//!
//! ```rust
//! use enum_display::EnumDisplay;
//!
//! #[derive(EnumDisplay)]
//! enum Color {
//! Red,
//! Green,
//! Blue,
//! }
//!
//! assert_eq!(Color::Red.to_string(), "Red");
//! assert_eq!(Color::Green.to_string(), "Green");
//! assert_eq!(Color::Blue.to_string(), "Blue");
//! ```
//!
//! # Example With Custom Case Transform
//!
//! Any case from [convert_case](https://docs.rs/convert_case/latest/convert_case/) is supported.
//!
//! ```rust
//! use enum_display::EnumDisplay;
//!
//! #[derive(EnumDisplay)]
//! #[enum_display(case = "Kebab")]
//! enum Message {
//! HelloGreeting { name: String },
//! }
//!
//! assert_eq!(Message::HelloGreeting { name: "Alice".to_string() }.to_string(), "hello-greeting");
//!
pub use enum_display_macro::*;
#[cfg(test)]
mod tests {
use super::*;
#[allow(dead_code)]
#[derive(EnumDisplay)]
enum TestEnum {
Name,
Address {
street: String,
city: String,
state: String,
zip: String,
},
DateOfBirth(u32, u32, u32),
}
#[allow(dead_code)]
#[derive(EnumDisplay)]
#[enum_display(case = "Kebab")]
enum TestEnumWithAttribute {
Name,
Address {
street: String,
city: String,
state: String,
zip: String,
},
DateOfBirth(u32, u32, u32),
}
#[test]
fn test_unit_field_variant() {
assert_eq!(TestEnum::Name.to_string(), "Name");
}
#[test]
fn test_named_fields_variant() {
assert_eq!(
TestEnum::Address {
street: "123 Main St".to_string(),
city: "Any Town".to_string(),
state: "CA".to_string(),
zip: "12345".to_string()
}
.to_string(),
"Address"
);
}
#[test]
fn test_unnamed_fields_variant() {
assert_eq!(TestEnum::DateOfBirth(1, 1, 2000).to_string(), "DateOfBirth");
}
#[test]
fn test_unit_field_variant_case_transform() {
assert_eq!(TestEnumWithAttribute::Name.to_string(), "name");
}
#[test]
fn test_named_fields_variant_case_transform() {
assert_eq!(
TestEnumWithAttribute::Address {
street: "123 Main St".to_string(),
city: "Any Town".to_string(),
state: "CA".to_string(),
zip: "12345".to_string()
}
.to_string(),
"address"
);
}
#[test]
fn test_unnamed_fields_variant_case_transform() {
assert_eq!(
TestEnumWithAttribute::DateOfBirth(1, 1, 2000).to_string(),
"date-of-birth"
);
}
}