diff options
Diffstat (limited to 'compiler/rustc_trait_selection/src')
| -rw-r--r-- | compiler/rustc_trait_selection/src/lib.rs | 1 | ||||
| -rw-r--r-- | compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs | 8 |
2 files changed, 4 insertions, 5 deletions
diff --git a/compiler/rustc_trait_selection/src/lib.rs b/compiler/rustc_trait_selection/src/lib.rs index b5fb710e4cc..057d00aeae8 100644 --- a/compiler/rustc_trait_selection/src/lib.rs +++ b/compiler/rustc_trait_selection/src/lib.rs @@ -22,6 +22,7 @@ #![feature(box_patterns)] #![feature(control_flow_enum)] #![feature(extract_if)] +#![feature(if_let_guard)] #![feature(let_chains)] #![feature(option_take_if)] #![feature(never_type)] diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs index 6ae7cbf717b..36fb5c8a6f7 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -4583,11 +4583,9 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { format!("&{}{ty}", mutability.prefix_str()) } } - ty::Array(ty, len) => format!( - "[{}; {}]", - self.ty_kind_suggestion(param_env, *ty)?, - len.eval_target_usize(tcx, ty::ParamEnv::reveal_all()), - ), + ty::Array(ty, len) if let Some(len) = len.try_eval_target_usize(tcx, param_env) => { + format!("[{}; {}]", self.ty_kind_suggestion(param_env, *ty)?, len) + } ty::Tuple(tys) => format!( "({})", tys.iter() |