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Deadbeef 2021-11-08 23:55:51 +08:00
parent f1126f1272
commit d863021521
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8 changed files with 18 additions and 42 deletions

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@ -46,10 +46,7 @@ pub trait TraitEngine<'tcx>: 'tcx {
obligation: PredicateObligation<'tcx>, obligation: PredicateObligation<'tcx>,
); );
fn select_all_or_error( fn select_all_or_error(&mut self, infcx: &InferCtxt<'_, 'tcx>) -> Vec<FulfillmentError<'tcx>>;
&mut self,
infcx: &InferCtxt<'_, 'tcx>,
) -> Vec<FulfillmentError<'tcx>>;
fn select_all_with_constness_or_error( fn select_all_with_constness_or_error(
&mut self, &mut self,
@ -59,10 +56,8 @@ pub trait TraitEngine<'tcx>: 'tcx {
self.select_all_or_error(infcx) self.select_all_or_error(infcx)
} }
fn select_where_possible( fn select_where_possible(&mut self, infcx: &InferCtxt<'_, 'tcx>)
&mut self, -> Vec<FulfillmentError<'tcx>>;
infcx: &InferCtxt<'_, 'tcx>,
) -> Vec<FulfillmentError<'tcx>>;
// FIXME(fee1-dead) this should not provide a default body for chalk as chalk should be updated // FIXME(fee1-dead) this should not provide a default body for chalk as chalk should be updated
fn select_with_constness_where_possible( fn select_with_constness_where_possible(

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@ -49,10 +49,7 @@ impl TraitEngine<'tcx> for FulfillmentContext<'tcx> {
self.obligations.insert(obligation); self.obligations.insert(obligation);
} }
fn select_all_or_error( fn select_all_or_error(&mut self, infcx: &InferCtxt<'_, 'tcx>) -> Vec<FulfillmentError<'tcx>> {
&mut self,
infcx: &InferCtxt<'_, 'tcx>,
) -> Vec<FulfillmentError<'tcx>> {
{ {
let errors = self.select_where_possible(infcx); let errors = self.select_where_possible(infcx);
@ -62,8 +59,7 @@ impl TraitEngine<'tcx> for FulfillmentContext<'tcx> {
} }
// any remaining obligations are errors // any remaining obligations are errors
self self.obligations
.obligations
.iter() .iter()
.map(|obligation| FulfillmentError { .map(|obligation| FulfillmentError {
obligation: obligation.clone(), obligation: obligation.clone(),

View file

@ -126,10 +126,7 @@ impl<'a, 'tcx> FulfillmentContext<'tcx> {
} }
/// Attempts to select obligations using `selcx`. /// Attempts to select obligations using `selcx`.
fn select( fn select(&mut self, selcx: &mut SelectionContext<'a, 'tcx>) -> Vec<FulfillmentError<'tcx>> {
&mut self,
selcx: &mut SelectionContext<'a, 'tcx>,
) -> Vec<FulfillmentError<'tcx>> {
let span = debug_span!("select", obligation_forest_size = ?self.predicates.len()); let span = debug_span!("select", obligation_forest_size = ?self.predicates.len());
let _enter = span.enter(); let _enter = span.enter();
@ -223,10 +220,7 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentContext<'tcx> {
.register_obligation(PendingPredicateObligation { obligation, stalled_on: vec![] }); .register_obligation(PendingPredicateObligation { obligation, stalled_on: vec![] });
} }
fn select_all_or_error( fn select_all_or_error(&mut self, infcx: &InferCtxt<'_, 'tcx>) -> Vec<FulfillmentError<'tcx>> {
&mut self,
infcx: &InferCtxt<'_, 'tcx>,
) -> Vec<FulfillmentError<'tcx>> {
{ {
let errors = self.select_where_possible(infcx); let errors = self.select_where_possible(infcx);
if !errors.is_empty() { if !errors.is_empty() {
@ -234,12 +228,7 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentContext<'tcx> {
} }
} }
self self.predicates.to_errors(CodeAmbiguity).into_iter().map(to_fulfillment_error).collect()
.predicates
.to_errors(CodeAmbiguity)
.into_iter()
.map(to_fulfillment_error)
.collect()
} }
fn select_all_with_constness_or_error( fn select_all_with_constness_or_error(
@ -254,12 +243,7 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentContext<'tcx> {
} }
} }
self self.predicates.to_errors(CodeAmbiguity).into_iter().map(to_fulfillment_error).collect()
.predicates
.to_errors(CodeAmbiguity)
.into_iter()
.map(to_fulfillment_error)
.collect()
} }
fn select_where_possible( fn select_where_possible(

View file

@ -78,7 +78,7 @@ fn scrape_region_constraints<'tcx, Op: super::TypeOp<'tcx, Output = R>, R>(
debug_assert!(obligations.iter().all(|o| o.cause.body_id == dummy_body_id)); debug_assert!(obligations.iter().all(|o| o.cause.body_id == dummy_body_id));
fulfill_cx.register_predicate_obligations(infcx, obligations); fulfill_cx.register_predicate_obligations(infcx, obligations);
let errors = fulfill_cx.select_all_or_error(infcx); let errors = fulfill_cx.select_all_or_error(infcx);
if !errors.is_empty() { if !errors.is_empty() {
infcx.tcx.sess.diagnostic().delay_span_bug( infcx.tcx.sess.diagnostic().delay_span_bug(
DUMMY_SP, DUMMY_SP,
&format!("errors selecting obligation during MIR typeck: {:?}", errors), &format!("errors selecting obligation during MIR typeck: {:?}", errors),

View file

@ -664,7 +664,7 @@ fn check_opaque_meets_bounds<'tcx>(
// Check that all obligations are satisfied by the implementation's // Check that all obligations are satisfied by the implementation's
// version. // version.
let errors = inh.fulfillment_cx.borrow_mut().select_all_or_error(&infcx); let errors = inh.fulfillment_cx.borrow_mut().select_all_or_error(&infcx);
if !errors.is_empty() { if !errors.is_empty() {
infcx.report_fulfillment_errors(&errors, None, false); infcx.report_fulfillment_errors(&errors, None, false);
} }

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@ -1096,7 +1096,7 @@ crate fn compare_const_impl<'tcx>(
// Check that all obligations are satisfied by the implementation's // Check that all obligations are satisfied by the implementation's
// version. // version.
let errors = inh.fulfillment_cx.borrow_mut().select_all_or_error(&infcx); let errors = inh.fulfillment_cx.borrow_mut().select_all_or_error(&infcx);
if !errors.is_empty() { if !errors.is_empty() {
infcx.report_fulfillment_errors(&errors, None, false); infcx.report_fulfillment_errors(&errors, None, false);
return; return;
} }
@ -1213,7 +1213,7 @@ fn compare_type_predicate_entailment<'tcx>(
// Check that all obligations are satisfied by the implementation's // Check that all obligations are satisfied by the implementation's
// version. // version.
let errors = inh.fulfillment_cx.borrow_mut().select_all_or_error(&infcx); let errors = inh.fulfillment_cx.borrow_mut().select_all_or_error(&infcx);
if !errors.is_empty() { if !errors.is_empty() {
infcx.report_fulfillment_errors(&errors, None, false); infcx.report_fulfillment_errors(&errors, None, false);
return Err(ErrorReported); return Err(ErrorReported);
} }
@ -1430,7 +1430,8 @@ pub fn check_type_bounds<'tcx>(
// Check that all obligations are satisfied by the implementation's // Check that all obligations are satisfied by the implementation's
// version. // version.
let errors = inh.fulfillment_cx.borrow_mut().select_all_with_constness_or_error(&infcx, constness); let errors =
inh.fulfillment_cx.borrow_mut().select_all_with_constness_or_error(&infcx, constness);
if !errors.is_empty() { if !errors.is_empty() {
infcx.report_fulfillment_errors(&errors, None, false); infcx.report_fulfillment_errors(&errors, None, false);
return Err(ErrorReported); return Err(ErrorReported);

View file

@ -642,7 +642,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
#[instrument(skip(self), level = "debug")] #[instrument(skip(self), level = "debug")]
pub(in super::super) fn select_all_obligations_or_error(&self) { pub(in super::super) fn select_all_obligations_or_error(&self) {
let errors =self let errors = self
.fulfillment_cx .fulfillment_cx
.borrow_mut() .borrow_mut()
.select_all_with_constness_or_error(&self, self.inh.constness); .select_all_with_constness_or_error(&self, self.inh.constness);
@ -662,7 +662,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
.fulfillment_cx .fulfillment_cx
.borrow_mut() .borrow_mut()
.select_with_constness_where_possible(self, self.inh.constness); .select_with_constness_where_possible(self, self.inh.constness);
if !result.is_empty() { if !result.is_empty() {
mutate_fulfillment_errors(&mut result); mutate_fulfillment_errors(&mut result);
self.report_fulfillment_errors(&result, self.inh.body_id, fallback_has_occurred); self.report_fulfillment_errors(&result, self.inh.body_id, fallback_has_occurred);
} }