bjoernager/rust
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Remove some unused type folders.

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I'm surprised the compiler doesn't warn about these. It appears having
an `impl` on a struct is enough to avoid a warning about it never being
constructed.
This commit is contained in:
Nicholas Nethercote 2023-04-12 16:49:13 +10:00
parent bbc400993e
commit 72605cd267
4 changed files with 4 additions and 145 deletions
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27
compiler/rustc_hir_analysis/src/collect/type_of.rs
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@ -8,10 +8,7 @@ use rustc_middle::hir::nested_filter;
use rustc_middle::ty::print::with_forced_trimmed_paths;
use rustc_middle::ty::subst::InternalSubsts;
use rustc_middle::ty::util::IntTypeExt;
use rustc_middle::ty::{
self, ImplTraitInTraitData, IsSuggestable, Ty, TyCtxt, TypeFolder, TypeSuperFoldable,
TypeVisitableExt,
};
use rustc_middle::ty::{self, ImplTraitInTraitData, IsSuggestable, Ty, TyCtxt, TypeVisitableExt};
use rustc_span::symbol::Ident;
use rustc_span::{Span, DUMMY_SP};
@ -874,28 +871,6 @@ fn infer_placeholder_type<'a>(
item_ident: Ident,
kind: &'static str,
) -> Ty<'a> {
// Attempts to make the type nameable by turning FnDefs into FnPtrs.
struct MakeNameable<'tcx> {
tcx: TyCtxt<'tcx>,
}
impl<'tcx> TypeFolder<TyCtxt<'tcx>> for MakeNameable<'tcx> {
fn interner(&self) -> TyCtxt<'tcx> {
self.tcx
}
fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> {
let ty = match *ty.kind() {
ty::FnDef(def_id, substs) => {
self.tcx.mk_fn_ptr(self.tcx.fn_sig(def_id).subst(self.tcx, substs))
}
_ => ty,
};
ty.super_fold_with(self)
}
}
let ty = tcx.diagnostic_only_typeck(def_id).node_type(body_id.hir_id);
// If this came from a free `const` or `static mut?` item,