compile_type_param_bound_or_default by youknowone · Pull Request #6005 · RustPython/RustPython

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compiler/codegen/src/symboltable.rs (1)

1406-1420: Good refactoring to use nested scopes for type parameter expressions.

The implementation correctly handles TypeVar bounds and defaults in separate scopes. The distinction between constraints (tuple expressions) and bounds is properly maintained.

Consider extracting the scope name generation into a helper method to reduce duplication:

+    fn type_param_scope_name(param_name: &str, scope_type: &str) -> String {
+        format!("<{} of {}>", scope_type, param_name)
+    }

Then use it as:

-                        let scope_name = if binding.is_tuple_expr() {
-                            format!("<TypeVar constraint of {}>", name.as_str())
-                        } else {
-                            format!("<TypeVar bound of {}>", name.as_str())
-                        };
+                        let scope_type = if binding.is_tuple_expr() {
+                            "TypeVar constraint"
+                        } else {
+                            "TypeVar bound"
+                        };
+                        let scope_name = Self::type_param_scope_name(name.as_str(), scope_type);

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