Method _bool

crates/derive-impl/src/util.rs:223–241

(&self, key: &str)

    }

    pub fn _bool(&self, key: &str) -> Result<bool> {
        let value = if let Some((_, meta)) = self.meta_map.get(key) {
            match meta {
                Meta::NameValue(syn::MetaNameValue {
                    value:
                        syn::Expr::Lit(syn::ExprLit {
                            lit: syn::Lit::Bool(lit),
                            ..
                        }),
                    ..
                }) => lit.value,
                Meta::Path(_) => true,
                _ => bail_span!(meta, "#[{}({})] is expected", self.meta_name(), key),
            }
        } else {
            false
        };
        Ok(value)
    }

    pub fn _optional_list(
        &self,