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Use ObligationCtxt in favor of TraitEngine in many places

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This commit is contained in:
Michael Goulet
2024-05-01 17:22:39 -04:00
parent 79734f1db8
commit d9eb5232b6
9 changed files with 142 additions and 113 deletions
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18
compiler/rustc_trait_selection/src/solve/inspect/analyse.rs
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@@ -14,7 +14,6 @@ use rustc_ast_ir::visit::VisitorResult;
use rustc_infer::infer::resolve::EagerResolver;
use rustc_infer::infer::type_variable::TypeVariableOrigin;
use rustc_infer::infer::{DefineOpaqueTypes, InferCtxt, InferOk};
use rustc_infer::traits::{TraitEngine, TraitEngineExt};
use rustc_macros::extension;
use rustc_middle::infer::unify_key::ConstVariableOrigin;
use rustc_middle::traits::query::NoSolution;
@@ -26,9 +25,9 @@ use rustc_middle::ty::TypeFoldable;
use rustc_span::{Span, DUMMY_SP};
use crate::solve::eval_ctxt::canonical;
use crate::solve::FulfillmentCtxt;
use crate::solve::{EvalCtxt, GoalEvaluationKind, GoalSource};
use crate::solve::{GenerateProofTree, InferCtxtEvalExt};
use crate::traits::ObligationCtxt;
pub struct InspectConfig {
pub max_depth: usize,
@@ -74,14 +73,13 @@ impl<'tcx> NormalizesToTermHack<'tcx> {
.eq(DefineOpaqueTypes::Yes, self.term, self.unconstrained_term)
.map_err(|_| NoSolution)
.and_then(|InferOk { value: (), obligations }| {
let mut fulfill_cx = FulfillmentCtxt::new(infcx);
fulfill_cx.register_predicate_obligations(infcx, obligations);
if fulfill_cx.select_where_possible(infcx).is_empty() {
if fulfill_cx.pending_obligations().is_empty() {
Ok(Certainty::Yes)
} else {
Ok(Certainty::AMBIGUOUS)
}
let ocx = ObligationCtxt::new(infcx);
ocx.register_obligations(obligations);
let errors = ocx.select_all_or_error();
if errors.is_empty() {
Ok(Certainty::Yes)
} else if errors.iter().all(|e| !e.is_true_error()) {
Ok(Certainty::AMBIGUOUS)
} else {
Err(NoSolution)
}