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api-macros: Refactor unique_lifetimes_to_tokens

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This commit is contained in:
Jonas Platte 2021-07-07 16:14:41 +02:00
parent fff4e97035
commit a59c43321f
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GPG Key ID: 7D261D771D915378
1 changed files with 5 additions and 6 deletions
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11
crates/ruma-api-macros/src/util.rs
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@ -12,12 +12,11 @@ pub(crate) fn unique_lifetimes_to_tokens<'a, I: IntoIterator<Item = &'a Lifetime
lifetimes: I, lifetimes: I,
) -> TokenStream { ) -> TokenStream {
let lifetimes = lifetimes.into_iter().collect::<BTreeSet<_>>(); let lifetimes = lifetimes.into_iter().collect::<BTreeSet<_>>();
(!lifetimes.is_empty()) if lifetimes.is_empty() {
.then(|| { TokenStream::new()
let lifetimes = quote! { #( #lifetimes ),* }; } else {
quote! { < #lifetimes > } quote! { < #( #lifetimes ),* > }
}) }
.unwrap_or_default()
} }
pub(crate) fn is_valid_endpoint_path(string: &str) -> bool { pub(crate) fn is_valid_endpoint_path(string: &str) -> bool {