diff options
Diffstat (limited to 'compiler/rustc_ast_lowering/src/expr.rs')
| -rw-r--r-- | compiler/rustc_ast_lowering/src/expr.rs | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index c49fd76a313..a6ac056b93b 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -210,9 +210,9 @@ impl<'hir> LoweringContext<'_, 'hir> { ex.span = e.span; } // Merge attributes into the inner expression. - let mut attrs = e.attrs.clone(); + let mut attrs: Vec<_> = e.attrs.iter().map(|a| self.lower_attr(a)).collect(); attrs.extend::<Vec<_>>(ex.attrs.into()); - ex.attrs = attrs; + ex.attrs = attrs.into(); return ex; } @@ -1471,13 +1471,15 @@ impl<'hir> LoweringContext<'_, 'hir> { hir::MatchSource::ForLoopDesugar, )); + let attrs: Vec<_> = e.attrs.iter().map(|a| self.lower_attr(a)).collect(); + // This is effectively `{ let _result = ...; _result }`. // The construct was introduced in #21984 and is necessary to make sure that // temporaries in the `head` expression are dropped and do not leak to the // surrounding scope of the `match` since the `match` is not a terminating scope. // // Also, add the attributes to the outer returned expr node. - self.expr_drop_temps_mut(desugared_span, match_expr, e.attrs.clone()) + self.expr_drop_temps_mut(desugared_span, match_expr, attrs.into()) } /// Desugar `ExprKind::Try` from: `<expr>?` into: |