Function decorator

src/textual/_on.py:84–91

Store message and selector in function attribute, return callable unaltered.

(method: DecoratedType)

            ) from None

    def decorator(method: DecoratedType) -> DecoratedType:
        """Store message and selector in function attribute, return callable unaltered."""

        if not hasattr(method, "_textual_on"):
            setattr(method, "_textual_on", [])
        getattr(method, "_textual_on").append((message_type, parsed_selectors))

        return method

    return decorator