diff options
Diffstat (limited to 'compiler/rustc_ast_passes/src/feature_gate.rs')
| -rw-r--r-- | compiler/rustc_ast_passes/src/feature_gate.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_ast_passes/src/feature_gate.rs b/compiler/rustc_ast_passes/src/feature_gate.rs index 8fb7c7de50c..8851fbd28f0 100644 --- a/compiler/rustc_ast_passes/src/feature_gate.rs +++ b/compiler/rustc_ast_passes/src/feature_gate.rs @@ -555,6 +555,7 @@ pub fn check_crate(krate: &ast::Crate, sess: &Session, features: &Features) { gate_all!(explicit_tail_calls, "`become` expression is experimental"); gate_all!(generic_const_items, "generic const items are experimental"); gate_all!(unnamed_fields, "unnamed fields are not yet fully implemented"); + gate_all!(never_patterns, "`!` patterns are experimental"); if !visitor.features.negative_bounds { for &span in spans.get(&sym::negative_bounds).iter().copied().flatten() { |