Method class_name

crates/derive-impl/src/pystructseq.rs:435–457

(&self)

impl PyStructSequenceMeta {
    pub fn class_name(&self) -> Result<Option<String>> {
        const KEY: &str = "name";
        let inner = self.inner();
        if let Some((_, meta)) = inner.meta_map.get(KEY) {
            if let Meta::NameValue(syn::MetaNameValue {
                value:
                    syn::Expr::Lit(syn::ExprLit {
                        lit: syn::Lit::Str(lit),
                        ..
                    }),
                ..
            }) = meta
            {
                return Ok(Some(lit.value()));
            }
            bail_span!(
                inner.meta_ident,
                "#[pystruct_sequence({KEY}=value)] expects a string value"
            )
        } else {
            Ok(None)
        }
    }

    pub fn module(&self) -> Result<Option<String>> {
        const KEY: &str = "module";