✨ Implement FromStr for XattrName

Author: ChanTsune

lib/src/entry/attr.rs

@@ -1,7 +1,11 @@
 //! Extended attribute types for PNA archive entries.
 
 use crate::util::bounded::{LengthExceeded, bytes::BoundedBytes, str::BoundedString};
-use std::{io, mem, ops::Deref, str};
+use std::{
+    io, mem,
+    ops::Deref,
+    str::{self, FromStr},
+};
 
 const XATTR_LENGTH_LIMIT: usize = u32::MAX as usize;
 
@@ -68,6 +72,15 @@ impl From<XattrName> for String {
     }
 }
 
+impl FromStr for XattrName {
+    type Err = LengthExceeded;
+
+    #[inline]
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Self::new(s)
+    }
+}
+
 /// Extended-attribute value (arbitrary bytes).
 ///
 /// Bounded by the `u32` length prefix used in the `xATR` chunk's serialized
@@ -254,6 +267,12 @@ mod tests {
         assert_eq!(String::from(name), "user.foo");
     }
 
+    #[test]
+    fn xattr_name_parses_from_str() {
+        let name: XattrName = "user.comment".parse().unwrap();
+        assert_eq!(name.as_str(), "user.comment");
+    }
+
     #[test]
     fn xattr_value_accepts_arbitrary_bytes() {
         let value = XattrValue::new(vec![0xFF, 0x00, 0x80]).unwrap();