Merge pull request #25 from dtolnay/alignpacked

Ignore certain unrelated reprs
dtolnay · Oct 30, 2023 · f92f946 · f92f946
2 parents 8a6b642 + cccb6a7
commit f92f946
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/src/parse.rs b/src/parse.rs
@@ -1,6 +1,6 @@
-use proc_macro2::{Span, TokenTree};
+use proc_macro2::{Span, TokenStream, TokenTree};
 use syn::parse::{Error, Parse, ParseStream, Result};
-use syn::{token, Attribute, Data, DeriveInput, Expr, Fields, Ident, Meta, Token};
+use syn::{parenthesized, token, Attribute, Data, DeriveInput, Expr, Fields, Ident, Meta, Token};
 
 pub struct Input {
     pub ident: Ident,
@@ -96,6 +96,14 @@ impl Parse for Input {
                             repr = Some(meta.path.get_ident().unwrap().clone());
                             return Ok(());
                         }
+                        if meta.path.is_ident("align") || meta.path.is_ident("packed") {
+                            if meta.input.peek(token::Paren) {
+                                let arg;
+                                parenthesized!(arg in meta.input);
+                                let _ = arg.parse::<TokenStream>()?;
+                            }
+                            return Ok(());
+                        }
                         Err(meta.error("unsupported repr for serde_repr enum"))
                     })?;
                 }