codama_attributes/codama_directives/
name_directive.rs

1use crate::{utils::FromMeta, Attribute, CodamaAttribute, CodamaDirective};
2use codama_errors::CodamaError;
3use codama_nodes::CamelCaseString;
4use codama_syn_helpers::Meta;
5
6#[derive(Debug, PartialEq)]
7pub struct NameDirective {
8    pub name: CamelCaseString,
9}
10
11impl NameDirective {
12    pub fn parse(meta: &Meta) -> syn::Result<Self> {
13        meta.assert_directive("name")?;
14        Ok(Self {
15            name: String::from_meta(meta)?.into(),
16        })
17    }
18}
19
20impl<'a> TryFrom<&'a CodamaAttribute<'a>> for &'a NameDirective {
21    type Error = CodamaError;
22
23    fn try_from(attribute: &'a CodamaAttribute) -> Result<Self, Self::Error> {
24        match attribute.directive {
25            CodamaDirective::Name(ref a) => Ok(a),
26            _ => Err(CodamaError::InvalidCodamaDirective {
27                expected: "name".to_string(),
28                actual: attribute.directive.name().to_string(),
29            }),
30        }
31    }
32}
33
34impl<'a> TryFrom<&'a Attribute<'a>> for &'a NameDirective {
35    type Error = CodamaError;
36
37    fn try_from(attribute: &'a Attribute) -> Result<Self, Self::Error> {
38        <&CodamaAttribute>::try_from(attribute)?.try_into()
39    }
40}
41
42#[cfg(test)]
43mod tests {
44    use super::*;
45
46    #[test]
47    fn ok() {
48        let meta: Meta = syn::parse_quote! { name = "banana" };
49        let directive = NameDirective::parse(&meta).unwrap();
50        assert_eq!(
51            directive,
52            NameDirective {
53                name: CamelCaseString::from("banana"),
54            }
55        );
56    }
57}
codama_attributes/codama_directives/name_directive.rs

codama_attributes/codama_directives/
name_directive.rs
