try fix performance degradation

CloseChoice · CloseChoice · commit 7767ad5ac03a · 2025-10-01T21:00:38.000+02:00
diff --git a/src/input/input_python.rs b/src/input/input_python.rs
@@ -434,8 +434,8 @@ impl<'py> Input<'py> for Bound<'py, PyAny> {
     }
 
     fn lax_dict<'a>(&'a self) -> ValResult<GenericPyMapping<'a, 'py>> {
-        if self.is_instance_of::<PyDict>() || self.is_instance_of::<PyMapping>() {
-            Ok(GenericPyMapping::Mapping(self.downcast::<PyMapping>()?))
+        if let Ok(mapping) = self.downcast::<PyMapping>() {
+            Ok(GenericPyMapping::Mapping(mapping))
         } else {
             Err(ValError::new(ErrorTypeDefaults::DictType, self))
         }

Original file line number	Diff line number	Diff line change
`@@ -434,8 +434,8 @@ impl<'py> Input<'py> for Bound<'py, PyAny> {`
`434`	`434`	`}`
`435`	`435`
`436`	`436`	`fn lax_dict<'a>(&'a self) -> ValResult<GenericPyMapping<'a, 'py>> {`
`437`		`- if self.is_instance_of::<PyDict>() \|\| self.is_instance_of::<PyMapping>() {`
`438`		`- Ok(GenericPyMapping::Mapping(self.downcast::<PyMapping>()?))`
	`437`	`+ if let Ok(mapping) = self.downcast::<PyMapping>() {`
	`438`	`+ Ok(GenericPyMapping::Mapping(mapping))`
`439`	`439`	`} else {`
`440`	`440`	`Err(ValError::new(ErrorTypeDefaults::DictType, self))`
`441`	`441`	`}`