codama_attributes/
unsupported_attribute.rs

1use crate::Attribute;
2use codama_errors::CodamaError;
3
4#[derive(Debug, PartialEq)]
5pub struct UnsupportedAttribute<'a> {
6    pub ast: &'a syn::Attribute,
7}
8
9impl<'a> UnsupportedAttribute<'a> {
10    pub fn new(ast: &'a syn::Attribute) -> Self {
11        Self { ast }
12    }
13}
14
15impl<'a> TryFrom<&'a Attribute<'a>> for &'a UnsupportedAttribute<'a> {
16    type Error = CodamaError;
17
18    fn try_from(attribute: &'a Attribute) -> Result<Self, Self::Error> {
19        match attribute {
20            Attribute::Unsupported(a) => Ok(a),
21            _ => Err(CodamaError::InvalidAttribute {
22                expected: "unsupported".to_string(),
23                actual: attribute.name(),
24            }),
25        }
26    }
27}

codama_attributes/unsupported_attribute.rs

codama_attributes/
unsupported_attribute.rs