bjoernager/rust
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Auto merge of #107376 - aliemjay:remove-givens, r=lcnr

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remove obsolete `givens` from regionck

Fixes #106567

r? `@lcnr` (feel free to reassign)
This commit is contained in:
bors 2023-03-15 02:50:58 +00:00
commit e84e5ff04a
14 changed files with 87 additions and 152 deletions
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1
compiler/rustc_trait_selection/src/traits/coherence.rs
View file

@ -388,7 +388,6 @@ fn resolve_negative_obligation<'tcx>(
let wf_tys = ocx.assumed_wf_types(param_env, DUMMY_SP, body_def_id);
let outlives_env = OutlivesEnvironment::with_bounds(
param_env,
Some(&infcx),
infcx.implied_bounds_tys(param_env, body_def_id, wf_tys),
);

1
compiler/rustc_trait_selection/src/traits/misc.rs
View file

@ -111,7 +111,6 @@ pub fn type_allowed_to_implement_copy<'tcx>(
// Check regions assuming the self type of the impl is WF
let outlives_env = OutlivesEnvironment::with_bounds(
param_env,
Some(&infcx),
infcx.implied_bounds_tys(
param_env,
parent_cause.body_id,

12
compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
View file

@ -3,7 +3,8 @@ use crate::traits::query::type_op::{self, TypeOp, TypeOpOutput};
use crate::traits::query::NoSolution;
use crate::traits::ObligationCause;
use rustc_data_structures::fx::FxIndexSet;
use rustc_middle::ty::{self, ParamEnv, Ty};
use rustc_infer::infer::resolve::OpportunisticRegionResolver;
use rustc_middle::ty::{self, ParamEnv, Ty, TypeFolder, TypeVisitableExt};
use rustc_span::def_id::LocalDefId;
pub use rustc_middle::traits::query::OutlivesBound;
@ -52,6 +53,10 @@ impl<'a, 'tcx: 'a> InferCtxtExt<'a, 'tcx> for InferCtxt<'tcx> {
body_id: LocalDefId,
ty: Ty<'tcx>,
) -> Vec<OutlivesBound<'tcx>> {
let ty = self.resolve_vars_if_possible(ty);
let ty = OpportunisticRegionResolver::new(self).fold_ty(ty);
assert!(!ty.needs_infer());
let span = self.tcx.def_span(body_id);
let result = param_env
.and(type_op::implied_outlives_bounds::ImpliedOutlivesBounds { ty })
@ -105,10 +110,7 @@ impl<'a, 'tcx: 'a> InferCtxtExt<'a, 'tcx> for InferCtxt<'tcx> {
tys: FxIndexSet<Ty<'tcx>>,
) -> Bounds<'a, 'tcx> {
tys.into_iter()
.map(move |ty| {
let ty = self.resolve_vars_if_possible(ty);
self.implied_outlives_bounds(param_env, body_id, ty)
})
.map(move |ty| self.implied_outlives_bounds(param_env, body_id, ty))
.flatten()
}
}