use crate::{error::MissingAttributeError, xml::XmlNode};
pub(crate) trait XmlNodeExt {
fn get_val_attribute(&self) -> std::result::Result<&String, MissingAttributeError>;
}
impl XmlNodeExt for XmlNode {
fn get_val_attribute(&self) -> std::result::Result<&String, MissingAttributeError> {
self.attributes
.get("val")
.ok_or_else(|| MissingAttributeError::new(self.name.clone(), "val"))
}
}