feat: add serde primitive, update command

src/encoding/serde_primitives.rs

@@ -0,0 +1,60 @@
+use std::str::FromStr;
+
+use num_bigint::BigUint;
+use serde::{self, Deserialize, Deserializer, Serializer};
+
+fn serialize_biguint<S>(value: &BigUint, serializer: S) -> Result<S::Ok, S::Error>
+where
+    S: Serializer,
+{
+    serializer.serialize_str(&value.to_string())
+}
+
+fn deserialize_biguint<'de, D>(deserializer: D) -> Result<BigUint, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s = String::deserialize(deserializer)?;
+    BigUint::from_str(&s).map_err(serde::de::Error::custom)
+}
+
+pub mod biguint_string {
+    use super::*;
+
+    pub fn serialize<S>(value: &BigUint, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serialize_biguint(value, serializer)
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<BigUint, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        deserialize_biguint(deserializer)
+    }
+}
+
+pub mod biguint_string_option {
+    use super::*;
+
+    pub fn serialize<S>(value: &Option<BigUint>, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        match value {
+            Some(v) => serialize_biguint(v, serializer),
+            None => serializer.serialize_none(),
+        }
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<BigUint>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        Option::<String>::deserialize(deserializer)?
+            .map(|s| BigUint::from_str(&s).map_err(serde::de::Error::custom))
+            .transpose()
+    }
+}