functora-tagged serde optional feature

Author: functora

rust/functora-tagged/.vim/coc-settings.json

@@ -1,3 +1,3 @@
 {
-  "rust-analyzer.cargo.features": ["diesel"]
+  "rust-analyzer.cargo.features": ["serde", "diesel"]
 }

rust/functora-tagged/Cargo.toml

@@ -11,9 +11,10 @@ description = "Lightweight, macro-free newtypes with refinement and derived trai
 
 [dependencies]
 diesel = { version = "2.3.3", optional = true }
-serde = { version = "1.0.228", features = ["derive"] }
+serde = { version = "1.0.228", features = ["derive"], optional = true }
 thiserror = "2.0.17"
 
 [features]
 default = []
 diesel = ["dep:diesel"]
+serde = ["dep:serde"]

rust/functora-tagged/src/lib.rs

@@ -1,25 +1,19 @@
-use serde::{Deserialize, Serialize};
 use std::fmt::{Debug, Display};
 use std::marker::PhantomData;
 use std::str::FromStr;
 use thiserror::Error;
 
-#[derive(
-    Eq, PartialEq, Ord, PartialOrd, Clone, Debug, Serialize,
-)]
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+
+#[derive(Eq, PartialEq, Ord, PartialOrd, Clone, Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize))]
 pub struct Tagged<Rep, Tag>(Rep, PhantomData<Tag>)
 where
     Rep: Refine<Tag>;
 
 pub trait Refine<Tag>:
-    Eq
-    + PartialEq
-    + Ord
-    + PartialOrd
-    + Clone
-    + Debug
-    + Serialize
-    + FromStr
+    Eq + PartialEq + Ord + PartialOrd + Clone + Debug + FromStr
 {
     type DecodeErr: Debug
         + Display
@@ -43,6 +37,7 @@ where
 {
     #[error("Tagged Decode error: {0}")]
     Decode(Rep::DecodeErr),
+
     #[error("Tagged Refine error: {0}")]
     Refine(Rep::RefineErr),
 }
@@ -75,6 +70,21 @@ where
     }
 }
 
+#[macro_export]
+macro_rules! lit {
+    ($arg:expr) => {{
+        $crate::tagged::Tagged::from_str(stringify!($arg))
+            .unwrap_or_else(|e| {
+                panic!(
+                    "lit!({}) failed: {}",
+                    stringify!($arg),
+                    e
+                )
+            })
+    }};
+}
+
+#[cfg(feature = "serde")]
 impl<'a, Rep, Tag> Deserialize<'a> for Tagged<Rep, Tag>
 where
     Rep: Refine<Tag>,
@@ -92,20 +102,6 @@ where
     }
 }
 
-#[macro_export]
-macro_rules! lit {
-    ($arg:expr) => {{
-        $crate::tagged::Tagged::from_str(stringify!($arg))
-            .unwrap_or_else(|e| {
-                panic!(
-                    "lit!({}) failed: {}",
-                    stringify!($arg),
-                    e
-                )
-            })
-    }};
-}
-
 #[cfg(feature = "diesel")]
 mod diesel_impl {
     use crate::*;