use crate::{ast, rules::NodeRule};

pub struct ManualInheritFrom;

impl NodeRule for ManualInheritFrom {
    type Node = ast::Binding;

    const ID: &'static str = "manual_inherit_from";

    fn select(data: &ast::NodeData) -> Option<&Self::Node> {
        let ast::NodeData::Binding(binding) = data;

        Some(binding)
    }

    fn check(node: &Self::Node) -> Option<&'static str> {
        match &node.value {
            ast::Expr::Select(select) if node.key == select.attr => {
                Some("Use `inherit` for this selected attribute")
            }
            _ => None,
        }
    }
}