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Auto merge of #131988 - matthiaskrgr:rollup-tx173wn, r=matthiaskrgr

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Rollup of 4 pull requests

Successful merges:

 - #126588 (Added more scenarios where comma to be removed in the function arg)
 - #131728 (bootstrap: extract builder cargo to its own module)
 - #131968 (Rip out old effects var handling code from traits)
 - #131981 (Remove the `BoundConstness::NotConst` variant)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2024-10-21 06:13:34 +00:00
commit 93742bd782
29 changed files with 1385 additions and 1752 deletions
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7
compiler/rustc_middle/src/traits/select.rs
View file

@ -161,9 +161,7 @@ pub enum SelectionCandidate<'tcx> {
/// Implementation of a `Fn`-family trait by one of the anonymous
/// types generated for a fn pointer type (e.g., `fn(int) -> int`)
FnPointerCandidate {
fn_host_effect: ty::Const<'tcx>,
},
FnPointerCandidate,
TraitAliasCandidate,
@ -180,9 +178,6 @@ pub enum SelectionCandidate<'tcx> {
BuiltinObjectCandidate,
BuiltinUnsizeCandidate,
/// Implementation of `const Destruct`, optionally from a custom `impl const Drop`.
ConstDestructCandidate(Option<DefId>),
}
/// The result of trait evaluation. The order is important

12
compiler/rustc_middle/src/ty/print/pretty.rs
View file

@ -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!("!");
}

18
compiler/rustc_middle/src/ty/util.rs
View file

@ -907,24 +907,6 @@ impl<'tcx> TyCtxt<'tcx> {
}
}
/// Constructs generic args for an item, optionally appending a const effect param type
pub fn with_opt_host_effect_param(
self,
caller_def_id: LocalDefId,
callee_def_id: DefId,
args: impl IntoIterator<Item: Into<ty::GenericArg<'tcx>>>,
) -> ty::GenericArgsRef<'tcx> {
let generics = self.generics_of(callee_def_id);
assert_eq!(generics.parent, None);
let opt_const_param = generics
.host_effect_index
.is_some()
.then(|| ty::GenericArg::from(self.expected_host_effect_param_for_body(caller_def_id)));
self.mk_args_from_iter(args.into_iter().map(|arg| arg.into()).chain(opt_const_param))
}
/// Expand any [weak alias types][weak] contained within the given `value`.
///
/// This should be used over other normalization routines in situations where