More detail when expecting expression but encountering bad macro argument

Partially address #71039.
2023-07-31 14:55:47 +00:00
parent 1be1e84872
commit 4e418805da
27 changed files with 200 additions and 67 deletions
--- a/compiler/rustc_expand/src/proc_macro.rs
+++ b/compiler/rustc_expand/src/proc_macro.rs
@@ -126,7 +126,7 @@ impl MultiItemModifier for DeriveProcMacro {
                Annotatable::Stmt(stmt) => token::NtStmt(stmt),
                _ => unreachable!(),
            };
-            TokenStream::token_alone(token::Interpolated(Lrc::new(nt)), DUMMY_SP)
+            TokenStream::token_alone(token::Interpolated(Lrc::new((nt, span))), DUMMY_SP)
        } else {
            item.to_tokens()
        };