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authorBenno Lossin <benno.lossin@proton.me>2023-04-24 11:11:33 +0300
committerMiguel Ojeda <ojeda@kernel.org>2023-05-31 19:53:09 +0300
commitb8342addded0099610902775617917fdee6edde8 (patch)
treec4caeb5d356eef5b5b13ea93977d4d28aa6a35ef /rust/macros
parent6883b29c6cae6077a095fac0ef69f30d0880d362 (diff)
downloadlinux-b8342addded0099610902775617917fdee6edde8.tar.xz
rust: macros: fix usage of `#[allow]` in `quote!`
When using `quote!` as part of an expression that was not the last one in a function, the `#[allow(clippy::vec_init_then_push)]` attribute would be present on an expression, which is not allowed. This patch refactors that part of the macro to use a statement instead. Signed-off-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Link: https://lore.kernel.org/r/20230424081112.99890-1-benno.lossin@proton.me Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'rust/macros')
-rw-r--r--rust/macros/quote.rs14
1 files changed, 8 insertions, 6 deletions
diff --git a/rust/macros/quote.rs b/rust/macros/quote.rs
index c8e08b3c1e4c..dddbb4e6f4cb 100644
--- a/rust/macros/quote.rs
+++ b/rust/macros/quote.rs
@@ -39,12 +39,14 @@ impl ToTokens for TokenStream {
/// [`quote_spanned!`](https://docs.rs/quote/latest/quote/macro.quote_spanned.html) macro from the
/// `quote` crate but provides only just enough functionality needed by the current `macros` crate.
macro_rules! quote_spanned {
- ($span:expr => $($tt:tt)*) => {
- #[allow(clippy::vec_init_then_push)]
- {
- let mut tokens = ::std::vec::Vec::new();
- let span = $span;
- quote_spanned!(@proc tokens span $($tt)*);
+ ($span:expr => $($tt:tt)*) => {{
+ let mut tokens;
+ #[allow(clippy::vec_init_then_push)]
+ {
+ tokens = ::std::vec::Vec::new();
+ let span = $span;
+ quote_spanned!(@proc tokens span $($tt)*);
+ }
::proc_macro::TokenStream::from_iter(tokens)
}};
(@proc $v:ident $span:ident) => {};