New Procedural Macros Crate v0.1

src/any.rs

@@ -681,6 +681,13 @@ impl Dynamic {
         }
     }
 
+    /// Copy and return a `Dynamic` if it contains a type that can be trivially copied.
+    /// Returns `None` if the cast fails.
+    #[inline(always)]
+    pub fn downcast_clone<T: Variant + Clone>(&self) -> Option<T> {
+        self.downcast_ref::<T>().map(|t| t.clone())
+    }
+
     /// Cast the `Dynamic` as the system integer type `INT` and return it.
     /// Returns the name of the actual type if the cast fails.
     pub fn as_int(&self) -> Result<INT, &'static str> {