feature: introduce strum

Cargo.toml

@@ -11,6 +11,8 @@ chrono = "0.4.37"
 opentelemetry = "0.22.0"
 opentelemetry-otlp = { version = "0.15.0", features = ["tonic"] }
 opentelemetry_sdk = { version = "0.22.1", features = ["rt-tokio"] }
+serde = { version = "1.0.197", features = ["derive"] }
+serde_json = "1.0.115"
 thiserror = "1.0.58"
 tracing = "0.1.40"
 tracing-appender = "0.2.3"
@@ -23,4 +25,5 @@ derive_builder = "0.20.0"
 derive_more = "0.99.17"
 serde = { version = "1.0.197", features = ["derive"] }
 serde_json = "1.0.115"
+strum = { version = "0.26.2", features = ["derive"] }
 tokio = { version = "1.37.0", features = ["rt", "rt-multi-thread", "macros"] }

examples/enum.rs

@@ -0,0 +1,60 @@
+use anyhow::Result;
+use serde::Serialize;
+use strum::{
+    Display, EnumCount, EnumDiscriminants, EnumIs, EnumIter, EnumString, IntoEnumIterator,
+    IntoStaticStr, VariantNames,
+};
+
+#[allow(unused)]
+#[derive(Display, Debug, Serialize)]
+enum Color {
+    #[strum(serialize = "redred", to_string = "red")]
+    Red,
+    Green {
+        range: usize,
+    },
+    Blue(usize),
+    Yellow,
+    #[strum(to_string = "purple with {sat} saturation")]
+    Purple {
+        sat: usize,
+    },
+}
+
+#[derive(
+    Debug, EnumString, EnumCount, EnumDiscriminants, EnumIter, EnumIs, IntoStaticStr, VariantNames,
+)]
+#[allow(unused)]
+enum MyEnum {
+    A,
+    B(String),
+    C,
+    D,
+}
+
+fn main() -> Result<()> {
+    println!("{:?}", MyEnum::VARIANTS);
+    MyEnum::iter().for_each(|v| println!("{:?}", v));
+    println!("total: {:?}", MyEnum::COUNT);
+
+    let my_enum = MyEnum::B("hello".to_string());
+    println!("{:?}", my_enum.is_b());
+    let s: &'static str = my_enum.into();
+    println!("{}", s);
+
+    let red = Color::Red;
+    let green = Color::Green { range: 10 };
+    let blue = Color::Blue(20);
+    let yellow = Color::Yellow;
+    let purple = Color::Purple { sat: 30 };
+
+    println!(
+        "red: {}, green: {}, blue: {}, yellow: {}, purple: {}",
+        red, green, blue, yellow, purple
+    );
+
+    let red_str = serde_json::to_string(&red)?;
+    println!("{}", red_str);
+
+    Ok(())
+}