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Rollup merge of #131981 - compiler-errors:bound-constness, r=cjgillot

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Remove the `BoundConstness::NotConst` variant

I find it easier to represent `BoundConstness::NotConst` as just `None` for some refactorings I'm doing.
This commit is contained in:
Matthias Krüger 2024-10-21 07:01:37 +02:00 • committed by GitHub
commit 62b7293a90
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7 changed files with 46 additions and 41 deletions
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12
compiler/rustc_middle/src/ty/print/pretty.rs
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@ -1956,7 +1956,6 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write {
define_scoped_cx!(self);
match constness {
ty::BoundConstness::NotConst => {}
ty::BoundConstness::Const => {
p!("const ");
}
@ -2948,7 +2947,10 @@ impl<'tcx> ty::TraitPredicate<'tcx> {
}
#[derive(Copy, Clone, TypeFoldable, TypeVisitable, Lift)]
pub struct TraitPredPrintWithBoundConstness<'tcx>(ty::TraitPredicate<'tcx>, ty::BoundConstness);
pub struct TraitPredPrintWithBoundConstness<'tcx>(
ty::TraitPredicate<'tcx>,
Option<ty::BoundConstness>,
);
impl<'tcx> fmt::Debug for TraitPredPrintWithBoundConstness<'tcx> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
@ -2966,7 +2968,7 @@ impl<'tcx> ty::PolyTraitPredicate<'tcx> {
fn print_with_bound_constness(
self,
constness: ty::BoundConstness,
constness: Option<ty::BoundConstness>,
) -> ty::Binder<'tcx, TraitPredPrintWithBoundConstness<'tcx>> {
self.map_bound(|trait_pred| TraitPredPrintWithBoundConstness(trait_pred, constness))
}
@ -3206,7 +3208,9 @@ define_print_and_forward_display! {
TraitPredPrintWithBoundConstness<'tcx> {
p!(print(self.0.trait_ref.self_ty()), ": ");
p!(pretty_print_bound_constness(self.1));
if let Some(constness) = self.1 {
p!(pretty_print_bound_constness(constness));
}
if let ty::PredicatePolarity::Negative = self.0.polarity {
p!("!");
}