feat(derive): Accept Box/Arc wrapped types

clap-rs · Jul 5, 2023 · f043f57 · f043f57
1 parent 7353b2b
commit f043f57
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/clap_builder/src/builder/value_parser.rs b/clap_builder/src/builder/value_parser.rs
@@ -2215,6 +2215,28 @@ impl ValueParserFactory for u64 {
         RangedU64ValueParser::new()
     }
 }
+impl<T> ValueParserFactory for Box<T>
+where
+    T: ValueParserFactory,
+    <T as ValueParserFactory>::Parser: TypedValueParser<Value = T>,
+    T: Send + Sync + Clone,
+{
+    type Parser = MapValueParser<<T as ValueParserFactory>::Parser, fn(T) -> Box<T>>;
+    fn value_parser() -> Self::Parser {
+        T::value_parser().map(Box::new)
+    }
+}
+impl<T> ValueParserFactory for std::sync::Arc<T>
+where
+    T: ValueParserFactory,
+    <T as ValueParserFactory>::Parser: TypedValueParser<Value = T>,
+    T: Send + Sync + Clone,
+{
+    type Parser = MapValueParser<<T as ValueParserFactory>::Parser, fn(T) -> std::sync::Arc<T>>;
+    fn value_parser() -> Self::Parser {
+        T::value_parser().map(std::sync::Arc::new)
+    }
+}
 
 #[doc(hidden)]
 #[derive(Debug)]