diff options
| -rw-r--r-- | src/librustc/hir/lowering.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/librustc/hir/lowering.rs b/src/librustc/hir/lowering.rs index 8b092ff727e..50c8763600f 100644 --- a/src/librustc/hir/lowering.rs +++ b/src/librustc/hir/lowering.rs @@ -1958,6 +1958,11 @@ impl<'a> LoweringContext<'a> { gen = this.impl_arg.map(|_| hir::GeneratorClause::Movable); e }); + if gen.is_some() && !decl.inputs.is_empty() { + this.sess.span_fatal( + fn_decl_span, + &format!("generators cannot have explicit arguments")); + } hir::ExprClosure(this.lower_capture_clause(capture_clause), this.lower_fn_decl(decl), body_id, |