- let msg = match mutbl {
- Mutability::MutMutable => "`0 as *mut _` detected. Consider using `ptr::null_mut()`",
- Mutability::MutImmutable => "`0 as *const _` detected. Consider using `ptr::null()`",
+ let (msg, sugg_fn) = match mut_ty.mutbl {
+ Mutability::Mut => ("`0 as *mut _` detected", "std::ptr::null_mut"),
+ Mutability::Not => ("`0 as *const _` detected", "std::ptr::null"),
+ };
+
+ let (sugg, appl) = if let TyKind::Infer = mut_ty.ty.kind {
+ (format!("{}()", sugg_fn), Applicability::MachineApplicable)
+ } else if let Some(mut_ty_snip) = snippet_opt(cx, mut_ty.ty.span) {
+ (format!("{}::<{}>()", sugg_fn, mut_ty_snip), Applicability::MachineApplicable)
+ } else {
+ // `MaybeIncorrect` as type inference may not work with the suggested code
+ (format!("{}()", sugg_fn), Applicability::MaybeIncorrect)