# JkcEnum
[](https://crates.io/crates/jkcenum)
[](https://crates.io/crates/jkcenum)
[](LICENSE)
## Feature
- [x] from_str
- [x] from_int
- [x] to_string
- [x] to_vec
## Example
> Cargo.toml
```conf
[dependencies]
jkcenum = { git = "https://github.com/caizhengxin/jkcenum.git", features = ["derive"] }
```
no_std:
```conf
[dependencies]
jkcenum = { git = "https://github.com/caizhengxin/jkcenum.git", default-features = false, features = ["derive"] }
```
> from_str
```rust
use std::str::FromStr;
use jkcenum::JkcEnum;
#[derive(Debug, PartialEq, Eq, JkcEnum)]
enum JkcExample {
#[jenum(alias = "r", alias = "read")]
Read,
#[jenum(rename = "WRITE", alias = "w", alias = "write")]
Write,
}
#[test]
fn test_fromstr() {
assert_eq!(JkcExample::from_str("Read").unwrap(), JkcExample::Read);
assert_eq!(JkcExample::from_str("r").unwrap(), JkcExample::Read);
assert_eq!(JkcExample::from_str("read").unwrap(), JkcExample::Read);
assert_eq!(JkcExample::from_str("WRITE").unwrap(), JkcExample::Write);
assert_eq!(JkcExample::from_str("w").unwrap(), JkcExample::Write);
assert_eq!(JkcExample::from_str("write").unwrap(), JkcExample::Write);
assert_eq!(JkcExample::from_str("Write").is_err(), true);
}
```
> from_int
```rust
use jkcenum::JkcEnum;
use jkcenum::FromInt;
#[derive(Debug, PartialEq, Eq, JkcEnum)]
pub enum JkcExample {
Read = 0x01,
ReadWrite,
Write = 0x03,
#[jenum(range="4..=6")]
Test,
Test2 = 7,
#[jenum(default)]
Unknown,
}
#[test]
fn test_fromint() {
assert_eq!(JkcExample::from_int(1).unwrap(), JkcExample::Read);
assert_eq!(JkcExample::from_int(2).unwrap(), JkcExample::ReadWrite);
assert_eq!(JkcExample::from_int(3).unwrap(), JkcExample::Write);
assert_eq!(JkcExample::from_int(4).unwrap(), JkcExample::Test);
assert_eq!(JkcExample::from_int(5).unwrap(), JkcExample::Test);
assert_eq!(JkcExample::from_int(6).unwrap(), JkcExample::Test);
assert_eq!(JkcExample::from_int(7).unwrap(), JkcExample::Test2);
assert_eq!(JkcExample::from_int(8).unwrap(), JkcExample::Unknown);
assert_eq!(JkcExample::from_int(9).unwrap(), JkcExample::Unknown);
}
```
> to_string
```rust
use jkcenum::JkcEnum;
#[derive(Debug, PartialEq, Eq, JkcEnum)]
enum JkcExample {
Read,
#[jenum(rename = "WRITE")]
Write,
}
#[test]
fn test_tostring() {
assert_eq!(JkcExample::Read.to_string(), "Read");
assert_eq!(JkcExample::Write.to_string(), "WRITE");
}
```
```rust
use jkcenum::JkcEnum;
#[derive(Debug, PartialEq, Eq, JkcEnum)]
#[jenum(rename_all="lowercase")]
enum JkcExample {
JanKinCai,
}
#[test]
fn test_tostring() {
assert_eq!(JkcExample::JanKinCai.to_string(), "jankincai");
}
```
```rust
use jkcenum::JkcEnum;
#[derive(Debug, PartialEq, Eq, JkcEnum)]
#[jenum(rename_all="desc")]
enum JkcExample {
JanKinCai,
}
#[test]
fn test_tostring() {
assert_eq!(JkcExample::JanKinCai.to_string(), "Jan Kin Cai");
}
```
> to_vec
```rust
use jkcenum::JkcEnum;
#[derive(Debug, Clone, Copy, PartialEq, Eq, JkcEnum)]
pub enum JkcExample {
Read,
#[jenum(rename = "WRITE")]
Write,
}
#[test]
fn test_to_vec() {
assert_eq!(JkcExample::to_vec(), vec![
JkcExample::Read,
JkcExample::Write,
]);
}
```
> serde
- [x] rename
- [x] alias
- [x] lowercase
- [x] uppercase
```rust
use std::str::FromStr;
use jkcenum::JkcEnum;
use serde::{Serialize, Deserialize};
#[derive(Debug, PartialEq, Eq, JkcEnum, Serialize, Deserialize)]
enum JkcExample {
Read,
#[serde(rename="WRITE")]
Write,
}
#[derive(Debug, PartialEq, Eq, JkcEnum, Serialize, Deserialize)]
#[serde(rename_all="lowercase")]
enum JkcExample2 {
Read,
Write,
}
#[test]
fn test_serde_tostring() {
assert_eq!(JkcExample::Read.to_string(), "Read");
assert_eq!(JkcExample::Write.to_string(), "WRITE");
assert_eq!(JkcExample::from_str("Read").unwrap(), JkcExample::Read);
assert_eq!(JkcExample::from_str("WRITE").unwrap(), JkcExample::Write);
assert_eq!(JkcExample2::Read.to_string(), "read");
assert_eq!(JkcExample2::Write.to_string(), "write");
assert_eq!(JkcExample2::from_str("read").unwrap(), JkcExample2::Read);
assert_eq!(JkcExample2::from_str("write").unwrap(), JkcExample2::Write);
}
```