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Improved doc attr extraction

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TheAwiteb 2023-03-03 02:07:52 +03:00
parent b91c53588d
commit d1ac816642
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GPG key ID: ABF818BD15DC2D34
1 changed files with 11 additions and 13 deletions
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24
crates/teloxide-macros/src/command_attr.rs
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@ -53,19 +53,7 @@ impl CommandAttrs {
let attributes = attributes.iter().map(|attr| {
if attr.path.is_ident("doc") {
// Extract the token literal from the doc attribute.
let description = attr
.tokens
.clone()
.into_iter()
.nth(1)
.map(|t| {
// remove first and last quotes only, is expected to be a string literal
let mut s = t.to_string();
s.remove(0);
s.pop();
s.trim().replace(r"\\n", "\n")
})
.unwrap_or_default();
let description = parse_doc_comment(attr).unwrap_or_default();
// Convert the doc attribute into a command description attribute.
let sp = attr.span();
let attr = Attribute::parse_outer
@ -152,3 +140,13 @@ fn is_command_attribute(a: &Attribute) -> bool {
_ => false,
}
}
fn parse_doc_comment(attr: &Attribute) -> Option<String> {
#[allow(clippy::collapsible_match)]
if let syn::Meta::NameValue(syn::MetaNameValue { lit, .. }) = attr.parse_meta().ok()? {
if let syn::Lit::Str(s) = lit {
return Some(s.value().trim().replace(r"\n", "\n"));
}
}
None
}