kittybox-indieauth: implement FromStr for Scopes

1 files changed, 12 insertions, 3 deletions

diff --git a/kittybox-rs/indieauth/src/scopes.rs b/kittybox-rs/indieauth/src/scopes.rs
index db4778a..bc57265 100644
--- a/kittybox-rs/indieauth/src/scopes.rs
+++ b/kittybox-rs/indieauth/src/scopes.rs
@@ -1,3 +1,5 @@
+use std::str::FromStr;
+
 use serde::{
     Serialize, Serializer,
     Deserialize,
@@ -112,6 +114,15 @@ impl ToString for Scopes {
             })
     }
 }
+impl FromStr for Scopes {
+    type Err = std::convert::Infallible;
+
+    fn from_str(value: &str) -> Result<Self, Self::Err> {
+        Ok(Self(value.split_ascii_whitespace()
+                .map(Scope::from)
+                .collect::<Vec<Scope>>()))
+    }
+}
 impl Serialize for Scopes {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
     where
@@ -132,9 +143,7 @@ impl<'de> Visitor<'de> for ScopeVisitor {
     where
         E: DeserializeError
     {
-        Ok(Scopes(value.split_ascii_whitespace()
-                  .map(Scope::from)
-                  .collect::<Vec<Scope>>()))
+        Ok(Scopes::from_str(value).unwrap())
     }
 }
 impl<'de> Deserialize<'de> for Scopes {