bjoernager/rust
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Pre-intern some commonly used type variables.

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This requires some rearrangement of plumbing, such as adding
`mk_fresh_{,int_,float_}ty` and removing `mk_ty_infer`.
This commit is contained in:
Nicholas Nethercote 2023-02-08 11:52:19 +11:00
parent 5b8f284536
commit 6248bbbf26
6 changed files with 80 additions and 31 deletions
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2
compiler/rustc_symbol_mangling/src/v0.rs
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@ -540,7 +540,7 @@ impl<'tcx> Printer<'tcx> for &mut SymbolMangler<'tcx> {
match predicate.as_ref().skip_binder() {
ty::ExistentialPredicate::Trait(trait_ref) => {
// Use a type that can't appear in defaults of type parameters.
let dummy_self = cx.tcx.mk_ty_infer(ty::FreshTy(0));
let dummy_self = cx.tcx.mk_fresh_ty(0);
let trait_ref = trait_ref.with_self_ty(cx.tcx, dummy_self);
cx = cx.print_def_path(trait_ref.def_id, trait_ref.substs)?;
}