serde: add impl for String (#258)

facebook · Mar 11, 2024 · ea1f342 · ea1f342
1 parent c5d8dd9
commit ea1f342
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/utils/core/src/serde/mod.rs b/utils/core/src/serde/mod.rs
@@ -209,6 +209,13 @@ impl<T: Serializable> Serializable for BTreeSet<T> {
     }
 }
 
+impl Serializable for String {
+    fn write_into<W: ByteWriter>(&self, target: &mut W) {
+        target.write_usize(self.len());
+        target.write_many(self.as_bytes());
+    }
+}
+
 // DESERIALIZABLE
 // ================================================================================================
 
@@ -422,3 +429,13 @@ impl<T: Deserializable + Ord> Deserializable for BTreeSet<T> {
         Ok(BTreeSet::from_iter(data))
     }
 }
+
+impl Deserializable for String {
+    fn read_from<R: ByteReader>(source: &mut R) -> Result<Self, DeserializationError> {
+        let len = source.read_usize()?;
+        let data = source.read_many(len)?;
+
+        String::from_utf8(data)
+            .map_err(|err| DeserializationError::InvalidValue(format!("{}", err)))
+    }
+}