mirror of https://github.com/rust-lang/rust.git
Rollup merge of #119895 - oli-obk:track_errors_3, r=matthewjasper
Remove `track_errors` entirely follow up to https://github.com/rust-lang/rust/pull/119869 r? `@matthewjasper` There are some diagnostic changes adding new diagnostics or not emitting some anymore. We can improve upon that in follow-up work imo.
This commit is contained in:
Matthias Krüger
GitHub
commit
0c45e3c7dd
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@ -25,14 +25,21 @@ use rustc_trait_selection::traits::ObligationCtxt;
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use rustc_trait_selection::traits::{self, ObligationCause};
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use std::collections::BTreeMap;
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pub fn check_trait(tcx: TyCtxt<'_>, trait_def_id: DefId) {
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pub fn check_trait(tcx: TyCtxt<'_>, trait_def_id: DefId) -> Result<(), ErrorGuaranteed> {
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let lang_items = tcx.lang_items();
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Checker { tcx, trait_def_id }
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.check(lang_items.drop_trait(), visit_implementation_of_drop)
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.check(lang_items.copy_trait(), visit_implementation_of_copy)
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.check(lang_items.const_param_ty_trait(), visit_implementation_of_const_param_ty)
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.check(lang_items.coerce_unsized_trait(), visit_implementation_of_coerce_unsized)
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.check(lang_items.dispatch_from_dyn_trait(), visit_implementation_of_dispatch_from_dyn);
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let checker = Checker { tcx, trait_def_id };
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let mut res = checker.check(lang_items.drop_trait(), visit_implementation_of_drop);
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res = res.and(checker.check(lang_items.copy_trait(), visit_implementation_of_copy));
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res = res.and(
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checker.check(lang_items.const_param_ty_trait(), visit_implementation_of_const_param_ty),
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);
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res = res.and(
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checker.check(lang_items.coerce_unsized_trait(), visit_implementation_of_coerce_unsized),
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);
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res.and(
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checker
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.check(lang_items.dispatch_from_dyn_trait(), visit_implementation_of_dispatch_from_dyn),
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)
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}
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struct Checker<'tcx> {
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@ -41,33 +48,40 @@ struct Checker<'tcx> {
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}
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impl<'tcx> Checker<'tcx> {
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fn check<F>(&self, trait_def_id: Option<DefId>, mut f: F) -> &Self
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fn check<F>(&self, trait_def_id: Option<DefId>, mut f: F) -> Result<(), ErrorGuaranteed>
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where
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F: FnMut(TyCtxt<'tcx>, LocalDefId),
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F: FnMut(TyCtxt<'tcx>, LocalDefId) -> Result<(), ErrorGuaranteed>,
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{
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let mut res = Ok(());
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if Some(self.trait_def_id) == trait_def_id {
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for &impl_def_id in self.tcx.hir().trait_impls(self.trait_def_id) {
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f(self.tcx, impl_def_id);
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res = res.and(f(self.tcx, impl_def_id));
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}
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}
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self
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res
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}
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}
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fn visit_implementation_of_drop(tcx: TyCtxt<'_>, impl_did: LocalDefId) {
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fn visit_implementation_of_drop(
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tcx: TyCtxt<'_>,
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impl_did: LocalDefId,
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) -> Result<(), ErrorGuaranteed> {
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// Destructors only work on local ADT types.
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match tcx.type_of(impl_did).instantiate_identity().kind() {
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ty::Adt(def, _) if def.did().is_local() => return,
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ty::Error(_) => return,
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ty::Adt(def, _) if def.did().is_local() => return Ok(()),
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ty::Error(_) => return Ok(()),
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_ => {}
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}
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let impl_ = tcx.hir().expect_item(impl_did).expect_impl();
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tcx.dcx().emit_err(errors::DropImplOnWrongItem { span: impl_.self_ty.span });
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Err(tcx.dcx().emit_err(errors::DropImplOnWrongItem { span: impl_.self_ty.span }))
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}
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fn visit_implementation_of_copy(tcx: TyCtxt<'_>, impl_did: LocalDefId) {
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fn visit_implementation_of_copy(
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tcx: TyCtxt<'_>,
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impl_did: LocalDefId,
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) -> Result<(), ErrorGuaranteed> {
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debug!("visit_implementation_of_copy: impl_did={:?}", impl_did);
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let self_type = tcx.type_of(impl_did).instantiate_identity();
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@ -79,59 +93,68 @@ fn visit_implementation_of_copy(tcx: TyCtxt<'_>, impl_did: LocalDefId) {
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debug!("visit_implementation_of_copy: self_type={:?} (free)", self_type);
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let span = match tcx.hir().expect_item(impl_did).expect_impl() {
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hir::Impl { polarity: hir::ImplPolarity::Negative(_), .. } => return,
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hir::Impl { polarity: hir::ImplPolarity::Negative(_), .. } => return Ok(()),
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hir::Impl { self_ty, .. } => self_ty.span,
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};
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let cause = traits::ObligationCause::misc(span, impl_did);
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match type_allowed_to_implement_copy(tcx, param_env, self_type, cause) {
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Ok(()) => {}
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Ok(()) => Ok(()),
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Err(CopyImplementationError::InfringingFields(fields)) => {
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infringing_fields_error(tcx, fields, LangItem::Copy, impl_did, span);
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Err(infringing_fields_error(tcx, fields, LangItem::Copy, impl_did, span))
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}
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Err(CopyImplementationError::NotAnAdt) => {
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tcx.dcx().emit_err(errors::CopyImplOnNonAdt { span });
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Err(tcx.dcx().emit_err(errors::CopyImplOnNonAdt { span }))
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}
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Err(CopyImplementationError::HasDestructor) => {
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tcx.dcx().emit_err(errors::CopyImplOnTypeWithDtor { span });
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Err(tcx.dcx().emit_err(errors::CopyImplOnTypeWithDtor { span }))
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}
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}
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}
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fn visit_implementation_of_const_param_ty(tcx: TyCtxt<'_>, impl_did: LocalDefId) {
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fn visit_implementation_of_const_param_ty(
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tcx: TyCtxt<'_>,
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impl_did: LocalDefId,
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) -> Result<(), ErrorGuaranteed> {
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let self_type = tcx.type_of(impl_did).instantiate_identity();
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assert!(!self_type.has_escaping_bound_vars());
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let param_env = tcx.param_env(impl_did);
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let span = match tcx.hir().expect_item(impl_did).expect_impl() {
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hir::Impl { polarity: hir::ImplPolarity::Negative(_), .. } => return,
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hir::Impl { polarity: hir::ImplPolarity::Negative(_), .. } => return Ok(()),
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impl_ => impl_.self_ty.span,
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};
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let cause = traits::ObligationCause::misc(span, impl_did);
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match type_allowed_to_implement_const_param_ty(tcx, param_env, self_type, cause) {
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Ok(()) => {}
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Ok(()) => Ok(()),
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Err(ConstParamTyImplementationError::InfrigingFields(fields)) => {
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infringing_fields_error(tcx, fields, LangItem::ConstParamTy, impl_did, span);
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Err(infringing_fields_error(tcx, fields, LangItem::ConstParamTy, impl_did, span))
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}
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Err(ConstParamTyImplementationError::NotAnAdtOrBuiltinAllowed) => {
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tcx.dcx().emit_err(errors::ConstParamTyImplOnNonAdt { span });
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Err(tcx.dcx().emit_err(errors::ConstParamTyImplOnNonAdt { span }))
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}
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}
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}
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fn visit_implementation_of_coerce_unsized(tcx: TyCtxt<'_>, impl_did: LocalDefId) {
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fn visit_implementation_of_coerce_unsized(
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tcx: TyCtxt<'_>,
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impl_did: LocalDefId,
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) -> Result<(), ErrorGuaranteed> {
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debug!("visit_implementation_of_coerce_unsized: impl_did={:?}", impl_did);
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// Just compute this for the side-effects, in particular reporting
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// errors; other parts of the code may demand it for the info of
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// course.
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let span = tcx.def_span(impl_did);
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tcx.at(span).coerce_unsized_info(impl_did);
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tcx.at(span).ensure().coerce_unsized_info(impl_did)
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}
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fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDefId) {
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fn visit_implementation_of_dispatch_from_dyn(
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tcx: TyCtxt<'_>,
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impl_did: LocalDefId,
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) -> Result<(), ErrorGuaranteed> {
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debug!("visit_implementation_of_dispatch_from_dyn: impl_did={:?}", impl_did);
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let span = tcx.def_span(impl_did);
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@ -166,26 +189,28 @@ fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDef
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match (source.kind(), target.kind()) {
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(&Ref(r_a, _, mutbl_a), Ref(r_b, _, mutbl_b))
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if infcx.at(&cause, param_env).eq(DefineOpaqueTypes::No, r_a, *r_b).is_ok()
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&& mutbl_a == *mutbl_b => {}
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(&RawPtr(tm_a), &RawPtr(tm_b)) if tm_a.mutbl == tm_b.mutbl => (),
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&& mutbl_a == *mutbl_b =>
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{
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Ok(())
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}
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(&RawPtr(tm_a), &RawPtr(tm_b)) if tm_a.mutbl == tm_b.mutbl => Ok(()),
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(&Adt(def_a, args_a), &Adt(def_b, args_b)) if def_a.is_struct() && def_b.is_struct() => {
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if def_a != def_b {
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let source_path = tcx.def_path_str(def_a.did());
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let target_path = tcx.def_path_str(def_b.did());
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tcx.dcx().emit_err(errors::DispatchFromDynCoercion {
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return Err(tcx.dcx().emit_err(errors::DispatchFromDynCoercion {
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span,
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trait_name: "DispatchFromDyn",
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note: true,
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source_path,
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target_path,
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});
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return;
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}));
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}
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let mut res = Ok(());
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if def_a.repr().c() || def_a.repr().packed() {
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tcx.dcx().emit_err(errors::DispatchFromDynRepr { span });
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res = Err(tcx.dcx().emit_err(errors::DispatchFromDynRepr { span }));
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}
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let fields = &def_a.non_enum_variant().fields;
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@ -207,11 +232,11 @@ fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDef
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infcx.at(&cause, param_env).eq(DefineOpaqueTypes::No, ty_a, ty_b)
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{
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if ok.obligations.is_empty() {
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tcx.dcx().emit_err(errors::DispatchFromDynZST {
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res = Err(tcx.dcx().emit_err(errors::DispatchFromDynZST {
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span,
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name: field.name,
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ty: ty_a,
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});
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}));
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return false;
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}
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@ -222,13 +247,13 @@ fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDef
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.collect::<Vec<_>>();
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if coerced_fields.is_empty() {
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tcx.dcx().emit_err(errors::DispatchFromDynSingle {
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res = Err(tcx.dcx().emit_err(errors::DispatchFromDynSingle {
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span,
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trait_name: "DispatchFromDyn",
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note: true,
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});
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}));
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} else if coerced_fields.len() > 1 {
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tcx.dcx().emit_err(errors::DispatchFromDynMulti {
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res = Err(tcx.dcx().emit_err(errors::DispatchFromDynMulti {
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span,
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coercions_note: true,
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number: coerced_fields.len(),
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@ -244,7 +269,7 @@ fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDef
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})
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.collect::<Vec<_>>()
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.join(", "),
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});
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}));
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} else {
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let ocx = ObligationCtxt::new(&infcx);
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for field in coerced_fields {
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@ -261,21 +286,25 @@ fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDef
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}
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let errors = ocx.select_all_or_error();
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if !errors.is_empty() {
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infcx.err_ctxt().report_fulfillment_errors(errors);
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res = Err(infcx.err_ctxt().report_fulfillment_errors(errors));
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}
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// Finally, resolve all regions.
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let outlives_env = OutlivesEnvironment::new(param_env);
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let _ = ocx.resolve_regions_and_report_errors(impl_did, &outlives_env);
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res = res.and(ocx.resolve_regions_and_report_errors(impl_did, &outlives_env));
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}
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res
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}
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_ => {
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tcx.dcx().emit_err(errors::CoerceUnsizedMay { span, trait_name: "DispatchFromDyn" });
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}
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_ => Err(tcx
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.dcx()
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.emit_err(errors::CoerceUnsizedMay { span, trait_name: "DispatchFromDyn" })),
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}
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}
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pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> CoerceUnsizedInfo {
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pub fn coerce_unsized_info<'tcx>(
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tcx: TyCtxt<'tcx>,
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impl_did: LocalDefId,
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) -> Result<CoerceUnsizedInfo, ErrorGuaranteed> {
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debug!("compute_coerce_unsized_info(impl_did={:?})", impl_did);
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let span = tcx.def_span(impl_did);
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@ -292,8 +321,6 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> Coe
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let param_env = tcx.param_env(impl_did);
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assert!(!source.has_escaping_bound_vars());
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let err_info = CoerceUnsizedInfo { custom_kind: None };
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debug!("visit_implementation_of_coerce_unsized: {:?} -> {:?} (free)", source, target);
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let infcx = tcx.infer_ctxt().build();
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@ -337,14 +364,13 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> Coe
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if def_a != def_b {
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let source_path = tcx.def_path_str(def_a.did());
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let target_path = tcx.def_path_str(def_b.did());
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tcx.dcx().emit_err(errors::DispatchFromDynSame {
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return Err(tcx.dcx().emit_err(errors::DispatchFromDynSame {
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span,
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trait_name: "CoerceUnsized",
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note: true,
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source_path,
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target_path,
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});
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return err_info;
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}));
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}
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// Here we are considering a case of converting
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@ -419,12 +445,11 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> Coe
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.collect::<Vec<_>>();
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if diff_fields.is_empty() {
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tcx.dcx().emit_err(errors::CoerceUnsizedOneField {
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return Err(tcx.dcx().emit_err(errors::CoerceUnsizedOneField {
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span,
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trait_name: "CoerceUnsized",
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note: true,
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});
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return err_info;
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}));
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} else if diff_fields.len() > 1 {
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let item = tcx.hir().expect_item(impl_did);
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let span = if let ItemKind::Impl(hir::Impl { of_trait: Some(t), .. }) = &item.kind {
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|
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@ -433,7 +458,7 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> Coe
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tcx.def_span(impl_did)
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};
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tcx.dcx().emit_err(errors::CoerceUnsizedMulti {
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return Err(tcx.dcx().emit_err(errors::CoerceUnsizedMulti {
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span,
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coercions_note: true,
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number: diff_fields.len(),
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|
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@ -442,9 +467,7 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> Coe
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.map(|&(i, a, b)| format!("`{}` (`{}` to `{}`)", fields[i].name, a, b))
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.collect::<Vec<_>>()
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.join(", "),
|
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});
|
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|
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return err_info;
|
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}));
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}
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let (i, a, b) = diff_fields[0];
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|
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@ -453,8 +476,9 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> Coe
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}
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_ => {
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tcx.dcx().emit_err(errors::DispatchFromDynStruct { span, trait_name: "CoerceUnsized" });
|
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return err_info;
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return Err(tcx
|
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.dcx()
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.emit_err(errors::DispatchFromDynStruct { span, trait_name: "CoerceUnsized" }));
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||||
}
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};
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|
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@ -477,7 +501,7 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: LocalDefId) -> Coe
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let outlives_env = OutlivesEnvironment::new(param_env);
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let _ = ocx.resolve_regions_and_report_errors(impl_did, &outlives_env);
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|
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CoerceUnsizedInfo { custom_kind: kind }
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Ok(CoerceUnsizedInfo { custom_kind: kind })
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}
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fn infringing_fields_error(
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|
|
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|||
|
|
@ -10,6 +10,7 @@ use rustc_errors::{error_code, struct_span_code_err};
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use rustc_hir::def_id::{DefId, LocalDefId};
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use rustc_middle::query::Providers;
|
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use rustc_middle::ty::{self, TyCtxt, TypeVisitableExt};
|
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use rustc_span::ErrorGuaranteed;
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use rustc_trait_selection::traits;
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mod builtin;
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|
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@ -18,7 +19,11 @@ mod inherent_impls_overlap;
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mod orphan;
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mod unsafety;
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|
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fn check_impl(tcx: TyCtxt<'_>, impl_def_id: LocalDefId, trait_ref: ty::TraitRef<'_>) {
|
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fn check_impl(
|
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tcx: TyCtxt<'_>,
|
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impl_def_id: LocalDefId,
|
||||
trait_ref: ty::TraitRef<'_>,
|
||||
) -> Result<(), ErrorGuaranteed> {
|
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debug!(
|
||||
"(checking implementation) adding impl for trait '{:?}', item '{}'",
|
||||
trait_ref,
|
||||
|
|
@ -28,18 +33,18 @@ fn check_impl(tcx: TyCtxt<'_>, impl_def_id: LocalDefId, trait_ref: ty::TraitRef<
|
|||
// Skip impls where one of the self type is an error type.
|
||||
// This occurs with e.g., resolve failures (#30589).
|
||||
if trait_ref.references_error() {
|
||||
return;
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
enforce_trait_manually_implementable(tcx, impl_def_id, trait_ref.def_id);
|
||||
enforce_empty_impls_for_marker_traits(tcx, impl_def_id, trait_ref.def_id);
|
||||
enforce_trait_manually_implementable(tcx, impl_def_id, trait_ref.def_id)
|
||||
.and(enforce_empty_impls_for_marker_traits(tcx, impl_def_id, trait_ref.def_id))
|
||||
}
|
||||
|
||||
fn enforce_trait_manually_implementable(
|
||||
tcx: TyCtxt<'_>,
|
||||
impl_def_id: LocalDefId,
|
||||
trait_def_id: DefId,
|
||||
) {
|
||||
) -> Result<(), ErrorGuaranteed> {
|
||||
let impl_header_span = tcx.def_span(impl_def_id);
|
||||
|
||||
// Disallow *all* explicit impls of traits marked `#[rustc_deny_explicit_impl]`
|
||||
|
|
@ -59,18 +64,17 @@ fn enforce_trait_manually_implementable(
|
|||
err.code(error_code!(E0328));
|
||||
}
|
||||
|
||||
err.emit();
|
||||
return;
|
||||
return Err(err.emit());
|
||||
}
|
||||
|
||||
if let ty::trait_def::TraitSpecializationKind::AlwaysApplicable =
|
||||
tcx.trait_def(trait_def_id).specialization_kind
|
||||
{
|
||||
if !tcx.features().specialization && !tcx.features().min_specialization {
|
||||
tcx.dcx().emit_err(errors::SpecializationTrait { span: impl_header_span });
|
||||
return;
|
||||
return Err(tcx.dcx().emit_err(errors::SpecializationTrait { span: impl_header_span }));
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// We allow impls of marker traits to overlap, so they can't override impls
|
||||
|
|
@ -79,22 +83,22 @@ fn enforce_empty_impls_for_marker_traits(
|
|||
tcx: TyCtxt<'_>,
|
||||
impl_def_id: LocalDefId,
|
||||
trait_def_id: DefId,
|
||||
) {
|
||||
) -> Result<(), ErrorGuaranteed> {
|
||||
if !tcx.trait_def(trait_def_id).is_marker {
|
||||
return;
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
if tcx.associated_item_def_ids(trait_def_id).is_empty() {
|
||||
return;
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
struct_span_code_err!(
|
||||
Err(struct_span_code_err!(
|
||||
tcx.dcx(),
|
||||
tcx.def_span(impl_def_id),
|
||||
E0715,
|
||||
"impls for marker traits cannot contain items"
|
||||
)
|
||||
.emit();
|
||||
.emit())
|
||||
}
|
||||
|
||||
pub fn provide(providers: &mut Providers) {
|
||||
|
|
@ -115,23 +119,23 @@ pub fn provide(providers: &mut Providers) {
|
|||
};
|
||||
}
|
||||
|
||||
fn coherent_trait(tcx: TyCtxt<'_>, def_id: DefId) {
|
||||
fn coherent_trait(tcx: TyCtxt<'_>, def_id: DefId) -> Result<(), ErrorGuaranteed> {
|
||||
// Trigger building the specialization graph for the trait. This will detect and report any
|
||||
// overlap errors.
|
||||
tcx.ensure().specialization_graph_of(def_id);
|
||||
let mut res = tcx.ensure().specialization_graph_of(def_id);
|
||||
|
||||
let impls = tcx.hir().trait_impls(def_id);
|
||||
for &impl_def_id in impls {
|
||||
let trait_ref = tcx.impl_trait_ref(impl_def_id).unwrap().instantiate_identity();
|
||||
|
||||
check_impl(tcx, impl_def_id, trait_ref);
|
||||
check_object_overlap(tcx, impl_def_id, trait_ref);
|
||||
res = res.and(check_impl(tcx, impl_def_id, trait_ref));
|
||||
res = res.and(check_object_overlap(tcx, impl_def_id, trait_ref));
|
||||
|
||||
unsafety::check_item(tcx, impl_def_id);
|
||||
tcx.ensure().orphan_check_impl(impl_def_id);
|
||||
res = res.and(unsafety::check_item(tcx, impl_def_id));
|
||||
res = res.and(tcx.ensure().orphan_check_impl(impl_def_id));
|
||||
}
|
||||
|
||||
builtin::check_trait(tcx, def_id);
|
||||
res.and(builtin::check_trait(tcx, def_id))
|
||||
}
|
||||
|
||||
/// Checks whether an impl overlaps with the automatic `impl Trait for dyn Trait`.
|
||||
|
|
@ -139,12 +143,12 @@ fn check_object_overlap<'tcx>(
|
|||
tcx: TyCtxt<'tcx>,
|
||||
impl_def_id: LocalDefId,
|
||||
trait_ref: ty::TraitRef<'tcx>,
|
||||
) {
|
||||
) -> Result<(), ErrorGuaranteed> {
|
||||
let trait_def_id = trait_ref.def_id;
|
||||
|
||||
if trait_ref.references_error() {
|
||||
debug!("coherence: skipping impl {:?} with error {:?}", impl_def_id, trait_ref);
|
||||
return;
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
// check for overlap with the automatic `impl Trait for dyn Trait`
|
||||
|
|
@ -173,7 +177,7 @@ fn check_object_overlap<'tcx>(
|
|||
let mut supertrait_def_ids = traits::supertrait_def_ids(tcx, component_def_id);
|
||||
if supertrait_def_ids.any(|d| d == trait_def_id) {
|
||||
let span = tcx.def_span(impl_def_id);
|
||||
struct_span_code_err!(
|
||||
return Err(struct_span_code_err!(
|
||||
tcx.dcx(),
|
||||
span,
|
||||
E0371,
|
||||
|
|
@ -189,9 +193,10 @@ fn check_object_overlap<'tcx>(
|
|||
tcx.def_path_str(trait_def_id)
|
||||
),
|
||||
)
|
||||
.emit();
|
||||
.emit());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
|
|
|||
|
|
@ -6,8 +6,9 @@ use rustc_hir as hir;
|
|||
use rustc_hir::Unsafety;
|
||||
use rustc_middle::ty::TyCtxt;
|
||||
use rustc_span::def_id::LocalDefId;
|
||||
use rustc_span::ErrorGuaranteed;
|
||||
|
||||
pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
|
||||
pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Result<(), ErrorGuaranteed> {
|
||||
let item = tcx.hir().expect_item(def_id);
|
||||
let impl_ = item.expect_impl();
|
||||
|
||||
|
|
@ -18,7 +19,7 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
|
|||
impl_.generics.params.iter().find(|p| p.pure_wrt_drop).map(|_| "may_dangle");
|
||||
match (trait_def.unsafety, unsafe_attr, impl_.unsafety, impl_.polarity) {
|
||||
(Unsafety::Normal, None, Unsafety::Unsafe, hir::ImplPolarity::Positive) => {
|
||||
struct_span_code_err!(
|
||||
return Err(struct_span_code_err!(
|
||||
tcx.dcx(),
|
||||
tcx.def_span(def_id),
|
||||
E0199,
|
||||
|
|
@ -31,11 +32,11 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
|
|||
"",
|
||||
rustc_errors::Applicability::MachineApplicable,
|
||||
)
|
||||
.emit();
|
||||
.emit());
|
||||
}
|
||||
|
||||
(Unsafety::Unsafe, _, Unsafety::Normal, hir::ImplPolarity::Positive) => {
|
||||
struct_span_code_err!(
|
||||
return Err(struct_span_code_err!(
|
||||
tcx.dcx(),
|
||||
tcx.def_span(def_id),
|
||||
E0200,
|
||||
|
|
@ -54,11 +55,11 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
|
|||
"unsafe ",
|
||||
rustc_errors::Applicability::MaybeIncorrect,
|
||||
)
|
||||
.emit();
|
||||
.emit());
|
||||
}
|
||||
|
||||
(Unsafety::Normal, Some(attr_name), Unsafety::Normal, hir::ImplPolarity::Positive) => {
|
||||
struct_span_code_err!(
|
||||
return Err(struct_span_code_err!(
|
||||
tcx.dcx(),
|
||||
tcx.def_span(def_id),
|
||||
E0569,
|
||||
|
|
@ -77,7 +78,7 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
|
|||
"unsafe ",
|
||||
rustc_errors::Applicability::MaybeIncorrect,
|
||||
)
|
||||
.emit();
|
||||
.emit());
|
||||
}
|
||||
|
||||
(_, _, Unsafety::Unsafe, hir::ImplPolarity::Negative(_)) => {
|
||||
|
|
@ -92,4 +93,5 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
|
|||
}
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
|
|
|||
|
|
@ -172,19 +172,15 @@ pub fn check_crate(tcx: TyCtxt<'_>) -> Result<(), ErrorGuaranteed> {
|
|||
|
||||
tcx.sess.time("coherence_checking", || {
|
||||
// Check impls constrain their parameters
|
||||
let res =
|
||||
let mut res =
|
||||
tcx.hir().try_par_for_each_module(|module| tcx.ensure().check_mod_impl_wf(module));
|
||||
|
||||
// FIXME(matthewjasper) We shouldn't need to use `track_errors` anywhere in this function
|
||||
// or the compiler in general.
|
||||
res.and(tcx.sess.track_errors(|| {
|
||||
for &trait_def_id in tcx.all_local_trait_impls(()).keys() {
|
||||
tcx.ensure().coherent_trait(trait_def_id);
|
||||
}
|
||||
}))
|
||||
for &trait_def_id in tcx.all_local_trait_impls(()).keys() {
|
||||
res = res.and(tcx.ensure().coherent_trait(trait_def_id));
|
||||
}
|
||||
// these queries are executed for side-effects (error reporting):
|
||||
.and(tcx.ensure().crate_inherent_impls(()))
|
||||
.and(tcx.ensure().crate_inherent_impls_overlap_check(()))
|
||||
res.and(tcx.ensure().crate_inherent_impls(()))
|
||||
.and(tcx.ensure().crate_inherent_impls_overlap_check(()))
|
||||
})?;
|
||||
|
||||
if tcx.features().rustc_attrs {
|
||||
|
|
|
|||
|
|
@ -120,7 +120,8 @@ struct QueryModifiers {
|
|||
|
||||
/// Forward the result on ensure if the query gets recomputed, and
|
||||
/// return `Ok(())` otherwise. Only applicable to queries returning
|
||||
/// `Result<(), ErrorGuaranteed>`
|
||||
/// `Result<T, ErrorGuaranteed>`. The `T` is not returned from `ensure`
|
||||
/// invocations.
|
||||
ensure_forwards_result_if_red: Option<Ident>,
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -236,7 +236,14 @@ provide! { tcx, def_id, other, cdata,
|
|||
impl_polarity => { table_direct }
|
||||
defaultness => { table_direct }
|
||||
constness => { table_direct }
|
||||
coerce_unsized_info => { table }
|
||||
coerce_unsized_info => {
|
||||
Ok(cdata
|
||||
.root
|
||||
.tables
|
||||
.coerce_unsized_info
|
||||
.get(cdata, def_id.index)
|
||||
.map(|lazy| lazy.decode((cdata, tcx)))
|
||||
.process_decoded(tcx, || panic!("{def_id:?} does not have coerce_unsized_info"))) }
|
||||
mir_const_qualif => { table }
|
||||
rendered_const => { table }
|
||||
asyncness => { table_direct }
|
||||
|
|
|
|||
|
|
@ -1994,7 +1994,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
|
|||
// if this is an impl of `CoerceUnsized`, create its
|
||||
// "unsized info", else just store None
|
||||
if Some(trait_ref.def_id) == tcx.lang_items().coerce_unsized_trait() {
|
||||
let coerce_unsized_info = tcx.coerce_unsized_info(def_id);
|
||||
let coerce_unsized_info = tcx.coerce_unsized_info(def_id).unwrap();
|
||||
record!(self.tables.coerce_unsized_info[def_id] <- coerce_unsized_info);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
use crate::mir;
|
||||
use crate::query::CyclePlaceholder;
|
||||
use crate::traits;
|
||||
use crate::ty::adjustment::CoerceUnsizedInfo;
|
||||
use crate::ty::{self, Ty};
|
||||
use std::intrinsics::transmute_unchecked;
|
||||
use std::mem::{size_of, MaybeUninit};
|
||||
|
|
@ -105,6 +106,10 @@ impl EraseType for Result<Option<ty::Instance<'_>>, rustc_errors::ErrorGuarantee
|
|||
[u8; size_of::<Result<Option<ty::Instance<'static>>, rustc_errors::ErrorGuaranteed>>()];
|
||||
}
|
||||
|
||||
impl EraseType for Result<CoerceUnsizedInfo, rustc_errors::ErrorGuaranteed> {
|
||||
type Result = [u8; size_of::<Result<CoerceUnsizedInfo, rustc_errors::ErrorGuaranteed>>()];
|
||||
}
|
||||
|
||||
impl EraseType for Result<Option<ty::EarlyBinder<ty::Const<'_>>>, rustc_errors::ErrorGuaranteed> {
|
||||
type Result = [u8; size_of::<
|
||||
Result<Option<ty::EarlyBinder<ty::Const<'static>>>, rustc_errors::ErrorGuaranteed>,
|
||||
|
|
|
|||
|
|
@ -977,10 +977,11 @@ rustc_queries! {
|
|||
}
|
||||
|
||||
/// Caches `CoerceUnsized` kinds for impls on custom types.
|
||||
query coerce_unsized_info(key: DefId) -> ty::adjustment::CoerceUnsizedInfo {
|
||||
query coerce_unsized_info(key: DefId) -> Result<ty::adjustment::CoerceUnsizedInfo, ErrorGuaranteed> {
|
||||
desc { |tcx| "computing CoerceUnsized info for `{}`", tcx.def_path_str(key) }
|
||||
cache_on_disk_if { key.is_local() }
|
||||
separate_provide_extern
|
||||
ensure_forwards_result_if_red
|
||||
}
|
||||
|
||||
query typeck(key: LocalDefId) -> &'tcx ty::TypeckResults<'tcx> {
|
||||
|
|
@ -1000,8 +1001,9 @@ rustc_queries! {
|
|||
desc { |tcx| "checking whether `{}` has a body", tcx.def_path_str(def_id) }
|
||||
}
|
||||
|
||||
query coherent_trait(def_id: DefId) -> () {
|
||||
query coherent_trait(def_id: DefId) -> Result<(), ErrorGuaranteed> {
|
||||
desc { |tcx| "coherence checking all impls of trait `{}`", tcx.def_path_str(def_id) }
|
||||
ensure_forwards_result_if_red
|
||||
}
|
||||
|
||||
/// Borrow-checks the function body. If this is a closure, returns
|
||||
|
|
@ -1032,6 +1034,7 @@ rustc_queries! {
|
|||
"checking whether impl `{}` follows the orphan rules",
|
||||
tcx.def_path_str(key),
|
||||
}
|
||||
ensure_forwards_result_if_red
|
||||
}
|
||||
|
||||
/// Check whether the function has any recursion that could cause the inliner to trigger
|
||||
|
|
@ -1300,6 +1303,7 @@ rustc_queries! {
|
|||
query specialization_graph_of(trait_id: DefId) -> Result<&'tcx specialization_graph::Graph, ErrorGuaranteed> {
|
||||
desc { |tcx| "building specialization graph of trait `{}`", tcx.def_path_str(trait_id) }
|
||||
cache_on_disk_if { true }
|
||||
ensure_forwards_result_if_red
|
||||
}
|
||||
query object_safety_violations(trait_id: DefId) -> &'tcx [ObjectSafetyViolation] {
|
||||
desc { |tcx| "determining object safety of trait `{}`", tcx.def_path_str(trait_id) }
|
||||
|
|
|
|||
|
|
@ -350,7 +350,7 @@ impl<'tcx> TyCtxt<'tcx> {
|
|||
validate: impl Fn(Self, DefId) -> Result<(), ErrorGuaranteed>,
|
||||
) -> Option<ty::Destructor> {
|
||||
let drop_trait = self.lang_items().drop_trait()?;
|
||||
self.ensure().coherent_trait(drop_trait);
|
||||
self.ensure().coherent_trait(drop_trait).ok()?;
|
||||
|
||||
let ty = self.type_of(adt_did).instantiate_identity();
|
||||
let mut dtor_candidate = None;
|
||||
|
|
|
|||
|
|
@ -1113,7 +1113,13 @@ fn find_vtable_types_for_unsizing<'tcx>(
|
|||
assert_eq!(source_adt_def, target_adt_def);
|
||||
|
||||
let CustomCoerceUnsized::Struct(coerce_index) =
|
||||
crate::custom_coerce_unsize_info(tcx, source_ty, target_ty);
|
||||
match crate::custom_coerce_unsize_info(tcx, source_ty, target_ty) {
|
||||
Ok(ccu) => ccu,
|
||||
Err(e) => {
|
||||
let e = Ty::new_error(tcx.tcx, e);
|
||||
return (e, e);
|
||||
}
|
||||
};
|
||||
|
||||
let source_fields = &source_adt_def.non_enum_variant().fields;
|
||||
let target_fields = &target_adt_def.non_enum_variant().fields;
|
||||
|
|
|
|||
|
|
@ -15,6 +15,7 @@ use rustc_middle::query::{Providers, TyCtxtAt};
|
|||
use rustc_middle::traits;
|
||||
use rustc_middle::ty::adjustment::CustomCoerceUnsized;
|
||||
use rustc_middle::ty::{self, Ty};
|
||||
use rustc_span::ErrorGuaranteed;
|
||||
|
||||
mod collector;
|
||||
mod errors;
|
||||
|
|
@ -28,7 +29,7 @@ fn custom_coerce_unsize_info<'tcx>(
|
|||
tcx: TyCtxtAt<'tcx>,
|
||||
source_ty: Ty<'tcx>,
|
||||
target_ty: Ty<'tcx>,
|
||||
) -> CustomCoerceUnsized {
|
||||
) -> Result<CustomCoerceUnsized, ErrorGuaranteed> {
|
||||
let trait_ref = ty::TraitRef::from_lang_item(
|
||||
tcx.tcx,
|
||||
LangItem::CoerceUnsized,
|
||||
|
|
@ -40,7 +41,7 @@ fn custom_coerce_unsize_info<'tcx>(
|
|||
Ok(traits::ImplSource::UserDefined(traits::ImplSourceUserDefinedData {
|
||||
impl_def_id,
|
||||
..
|
||||
})) => tcx.coerce_unsized_info(impl_def_id).custom_kind.unwrap(),
|
||||
})) => Ok(tcx.coerce_unsized_info(impl_def_id)?.custom_kind.unwrap()),
|
||||
impl_source => {
|
||||
bug!("invalid `CoerceUnsized` impl_source: {:?}", impl_source);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -332,20 +332,6 @@ impl Session {
|
|||
}
|
||||
}
|
||||
|
||||
// FIXME(matthewjasper) Remove this method, it should never be needed.
|
||||
pub fn track_errors<F, T>(&self, f: F) -> Result<T, ErrorGuaranteed>
|
||||
where
|
||||
F: FnOnce() -> T,
|
||||
{
|
||||
let old_count = self.dcx().err_count();
|
||||
let result = f();
|
||||
if self.dcx().err_count() == old_count {
|
||||
Ok(result)
|
||||
} else {
|
||||
Err(self.dcx().delayed_bug("`self.err_count()` changed but an error was not emitted"))
|
||||
}
|
||||
}
|
||||
|
||||
/// Used for code paths of expensive computations that should only take place when
|
||||
/// warnings or errors are emitted. If no messages are emitted ("good path"), then
|
||||
/// it's likely a bug.
|
||||
|
|
|
|||
|
|
@ -14,6 +14,5 @@ fn foo<A: TraitWAssocConst<A=32>>() { //~ ERROR E0658
|
|||
|
||||
fn main<A: TraitWAssocConst<A=32>>() {
|
||||
//~^ ERROR E0658
|
||||
//~| ERROR E0131
|
||||
foo::<Demo>();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -43,13 +43,7 @@ LL | impl TraitWAssocConst for impl Demo {
|
|||
|
|
||||
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
||||
|
||||
error[E0131]: `main` function is not allowed to have generic parameters
|
||||
--> $DIR/issue-105330.rs:15:8
|
||||
|
|
||||
LL | fn main<A: TraitWAssocConst<A=32>>() {
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` cannot have generic parameters
|
||||
error: aborting due to 5 previous errors
|
||||
|
||||
error: aborting due to 6 previous errors
|
||||
|
||||
Some errors have detailed explanations: E0131, E0404, E0562, E0658.
|
||||
For more information about an error, try `rustc --explain E0131`.
|
||||
Some errors have detailed explanations: E0404, E0562, E0658.
|
||||
For more information about an error, try `rustc --explain E0404`.
|
||||
|
|
|
|||
|
|
@ -22,7 +22,22 @@ pub trait Column: Expression {}
|
|||
|
||||
#[derive(Debug, Copy, Clone)]
|
||||
//~^ ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
pub enum ColumnInsertValue<Col, Expr> where
|
||||
//~^ ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
Col: Column,
|
||||
Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
|
||||
{
|
||||
|
|
|
|||
|
|
@ -17,6 +17,272 @@ help: consider further restricting the associated type
|
|||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
|
||||
| +++++++++++++++++++++++++++++++++++++++
|
||||
|
||||
error: aborting due to 1 previous error
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:38:1
|
||||
|
|
||||
LL | pub enum ColumnInsertValue<Col, Expr> where
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
help: consider extending the `where` clause, but there might be an alternative better way to express this requirement
|
||||
|
|
||||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull
|
||||
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:38:1
|
||||
|
|
||||
LL | / pub enum ColumnInsertValue<Col, Expr> where
|
||||
LL | |
|
||||
LL | |
|
||||
LL | | Col: Column,
|
||||
... |
|
||||
LL | | Default(Col),
|
||||
LL | | }
|
||||
| |_^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
help: consider extending the `where` clause, but there might be an alternative better way to express this requirement
|
||||
|
|
||||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull
|
||||
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:10
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
help: consider further restricting the associated type
|
||||
|
|
||||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
|
||||
| +++++++++++++++++++++++++++++++++++++++
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:10
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
help: consider further restricting the associated type
|
||||
|
|
||||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
|
||||
| +++++++++++++++++++++++++++++++++++++++
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:10
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:10
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:17
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
help: consider further restricting the associated type
|
||||
|
|
||||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
|
||||
| +++++++++++++++++++++++++++++++++++++++
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:23
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
help: consider further restricting the associated type
|
||||
|
|
||||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
|
||||
| +++++++++++++++++++++++++++++++++++++++
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:23
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
help: consider further restricting the associated type
|
||||
|
|
||||
LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
|
||||
| +++++++++++++++++++++++++++++++++++++++
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:23
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:23
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:10
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:10
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:23
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
|
||||
--> $DIR/issue-38821.rs:23:23
|
||||
|
|
||||
LL | #[derive(Debug, Copy, Clone)]
|
||||
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
|
||||
|
|
||||
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
|
||||
--> $DIR/issue-38821.rs:9:18
|
||||
|
|
||||
LL | impl<T: NotNull> IntoNullable for T {
|
||||
| ------- ^^^^^^^^^^^^ ^
|
||||
| |
|
||||
| unsatisfied trait bound introduced here
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: aborting due to 16 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0277`.
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
use std::any::Any;
|
||||
use std::ops::CoerceUnsized;
|
||||
|
||||
struct Foo<T> {
|
||||
struct Foo<T: ?Sized> {
|
||||
data: Box<T>,
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -2,6 +2,7 @@
|
|||
pub struct Foo {
|
||||
x: [u8; SIZE],
|
||||
//~^ ERROR mismatched types
|
||||
//~| ERROR mismatched types
|
||||
}
|
||||
|
||||
const SIZE: u32 = 1;
|
||||
|
|
|
|||
|
|
@ -4,6 +4,14 @@ error[E0308]: mismatched types
|
|||
LL | x: [u8; SIZE],
|
||||
| ^^^^ expected `usize`, found `u32`
|
||||
|
||||
error: aborting due to 1 previous error
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/bad-generic-in-copy-impl.rs:3:13
|
||||
|
|
||||
LL | x: [u8; SIZE],
|
||||
| ^^^^ expected `usize`, found `u32`
|
||||
|
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
error: aborting due to 2 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0308`.
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@ use std::collections::BTreeSet;
|
|||
#[derive(Hash)]
|
||||
pub enum ElemDerived {
|
||||
//~^ ERROR recursive type `ElemDerived` has infinite size
|
||||
//~| ERROR cycle detected
|
||||
A(ElemDerived)
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@ error[E0072]: recursive type `ElemDerived` has infinite size
|
|||
|
|
||||
LL | pub enum ElemDerived {
|
||||
| ^^^^^^^^^^^^^^^^^^^^
|
||||
LL |
|
||||
...
|
||||
LL | A(ElemDerived)
|
||||
| ----------- recursive without indirection
|
||||
|
|
||||
|
|
@ -12,6 +12,21 @@ help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
|
|||
LL | A(Box<ElemDerived>)
|
||||
| ++++ +
|
||||
|
||||
error: aborting due to 1 previous error
|
||||
error[E0391]: cycle detected when computing drop-check constraints for `ElemDerived`
|
||||
--> $DIR/issue-72554.rs:4:1
|
||||
|
|
||||
LL | pub enum ElemDerived {
|
||||
| ^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: ...which immediately requires computing drop-check constraints for `ElemDerived` again
|
||||
note: cycle used when computing drop-check constraints for `Elem`
|
||||
--> $DIR/issue-72554.rs:11:1
|
||||
|
|
||||
LL | pub enum Elem {
|
||||
| ^^^^^^^^^^^^^
|
||||
= note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
|
||||
|
||||
For more information about this error, try `rustc --explain E0072`.
|
||||
error: aborting due to 2 previous errors
|
||||
|
||||
Some errors have detailed explanations: E0072, E0391.
|
||||
For more information about an error, try `rustc --explain E0072`.
|
||||
|
|
|
|||
|
|
@ -7,16 +7,6 @@ LL | impl<T: Default> A for T {
|
|||
LL | impl<T: Default + ~const Sup> const A for T {
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/specializing-constness-2.rs:27:5
|
||||
|
|
||||
LL | <T as A>::a();
|
||||
| ^^^^^^^^^^^^^ expected `host`, found `true`
|
||||
|
|
||||
= note: expected constant `host`
|
||||
found constant `true`
|
||||
error: aborting due to 1 previous error
|
||||
|
||||
error: aborting due to 2 previous errors
|
||||
|
||||
Some errors have detailed explanations: E0119, E0308.
|
||||
For more information about an error, try `rustc --explain E0119`.
|
||||
For more information about this error, try `rustc --explain E0119`.
|
||||
|
|
|
|||
|
|
@ -6,7 +6,6 @@
|
|||
struct S<const L: usize>;
|
||||
|
||||
impl<const N: i32> Copy for S<N> {}
|
||||
//~^ ERROR the constant `N` is not of type `usize`
|
||||
impl<const M: usize> Copy for S<M> {}
|
||||
//~^ ERROR: conflicting implementations of trait `Copy` for type `S<_>`
|
||||
|
||||
|
|
|
|||
|
|
@ -1,29 +1,11 @@
|
|||
error[E0119]: conflicting implementations of trait `Copy` for type `S<_>`
|
||||
--> $DIR/bad-const-wf-doesnt-specialize.rs:10:1
|
||||
--> $DIR/bad-const-wf-doesnt-specialize.rs:9:1
|
||||
|
|
||||
LL | impl<const N: i32> Copy for S<N> {}
|
||||
| -------------------------------- first implementation here
|
||||
LL |
|
||||
LL | impl<const M: usize> Copy for S<M> {}
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `S<_>`
|
||||
|
||||
error: the constant `N` is not of type `usize`
|
||||
--> $DIR/bad-const-wf-doesnt-specialize.rs:8:29
|
||||
|
|
||||
LL | impl<const N: i32> Copy for S<N> {}
|
||||
| ^^^^ expected `usize`, found `i32`
|
||||
|
|
||||
note: required for `S<N>` to implement `Clone`
|
||||
--> $DIR/bad-const-wf-doesnt-specialize.rs:5:10
|
||||
|
|
||||
LL | #[derive(Clone)]
|
||||
| ^^^^^
|
||||
LL | struct S<const L: usize>;
|
||||
| ----- unsatisfied trait bound introduced in this `derive` macro
|
||||
note: required by a bound in `Copy`
|
||||
--> $SRC_DIR/core/src/marker.rs:LL:COL
|
||||
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: aborting due to 2 previous errors
|
||||
error: aborting due to 1 previous error
|
||||
|
||||
For more information about this error, try `rustc --explain E0119`.
|
||||
|
|
|
|||
|
|
@ -198,7 +198,6 @@ trait Qux {
|
|||
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
|
||||
}
|
||||
impl Qux for Struct {
|
||||
//~^ ERROR: not all trait items implemented, missing: `F`
|
||||
type A = _;
|
||||
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
|
||||
type B = _;
|
||||
|
|
|
|||
|
|
@ -29,7 +29,7 @@ LL | struct BadStruct2<_, T>(_, T);
|
|||
| ^ expected identifier, found reserved identifier
|
||||
|
||||
error: associated constant in `impl` without body
|
||||
--> $DIR/typeck_type_placeholder_item.rs:206:5
|
||||
--> $DIR/typeck_type_placeholder_item.rs:205:5
|
||||
|
|
||||
LL | const C: _;
|
||||
| ^^^^^^^^^^-
|
||||
|
|
@ -411,7 +411,7 @@ LL | type Y = impl Trait<_>;
|
|||
| ^ not allowed in type signatures
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
|
||||
--> $DIR/typeck_type_placeholder_item.rs:217:31
|
||||
--> $DIR/typeck_type_placeholder_item.rs:216:31
|
||||
|
|
||||
LL | fn value() -> Option<&'static _> {
|
||||
| ----------------^-
|
||||
|
|
@ -420,7 +420,7 @@ LL | fn value() -> Option<&'static _> {
|
|||
| help: replace with the correct return type: `Option<&'static u8>`
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants
|
||||
--> $DIR/typeck_type_placeholder_item.rs:222:10
|
||||
--> $DIR/typeck_type_placeholder_item.rs:221:10
|
||||
|
|
||||
LL | const _: Option<_> = map(value);
|
||||
| ^^^^^^^^^
|
||||
|
|
@ -429,7 +429,7 @@ LL | const _: Option<_> = map(value);
|
|||
| help: replace with the correct type: `Option<u8>`
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
|
||||
--> $DIR/typeck_type_placeholder_item.rs:225:31
|
||||
--> $DIR/typeck_type_placeholder_item.rs:224:31
|
||||
|
|
||||
LL | fn evens_squared(n: usize) -> _ {
|
||||
| ^
|
||||
|
|
@ -438,13 +438,13 @@ LL | fn evens_squared(n: usize) -> _ {
|
|||
| help: replace with an appropriate return type: `impl Iterator<Item = usize>`
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants
|
||||
--> $DIR/typeck_type_placeholder_item.rs:230:10
|
||||
--> $DIR/typeck_type_placeholder_item.rs:229:10
|
||||
|
|
||||
LL | const _: _ = (1..10).filter(|x| x % 2 == 0).map(|x| x * x);
|
||||
| ^ not allowed in type signatures
|
||||
|
|
||||
note: however, the inferred type `Map<Filter<Range<i32>, {closure@typeck_type_placeholder_item.rs:230:29}>, {closure@typeck_type_placeholder_item.rs:230:49}>` cannot be named
|
||||
--> $DIR/typeck_type_placeholder_item.rs:230:14
|
||||
note: however, the inferred type `Map<Filter<Range<i32>, {closure@typeck_type_placeholder_item.rs:229:29}>, {closure@typeck_type_placeholder_item.rs:229:49}>` cannot be named
|
||||
--> $DIR/typeck_type_placeholder_item.rs:229:14
|
||||
|
|
||||
LL | const _: _ = (1..10).filter(|x| x % 2 == 0).map(|x| x * x);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
@ -631,25 +631,25 @@ LL | fn clone_from(&mut self, other: &FnTest9) { *self = FnTest9; }
|
|||
| ~~~~~~~~
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated types
|
||||
--> $DIR/typeck_type_placeholder_item.rs:202:14
|
||||
--> $DIR/typeck_type_placeholder_item.rs:201:14
|
||||
|
|
||||
LL | type A = _;
|
||||
| ^ not allowed in type signatures
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated types
|
||||
--> $DIR/typeck_type_placeholder_item.rs:204:14
|
||||
--> $DIR/typeck_type_placeholder_item.rs:203:14
|
||||
|
|
||||
LL | type B = _;
|
||||
| ^ not allowed in type signatures
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated constants
|
||||
--> $DIR/typeck_type_placeholder_item.rs:206:14
|
||||
--> $DIR/typeck_type_placeholder_item.rs:205:14
|
||||
|
|
||||
LL | const C: _;
|
||||
| ^ not allowed in type signatures
|
||||
|
||||
error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated constants
|
||||
--> $DIR/typeck_type_placeholder_item.rs:209:14
|
||||
--> $DIR/typeck_type_placeholder_item.rs:208:14
|
||||
|
|
||||
LL | const D: _ = 42;
|
||||
| ^
|
||||
|
|
@ -657,16 +657,7 @@ LL | const D: _ = 42;
|
|||
| not allowed in type signatures
|
||||
| help: replace with the correct type: `i32`
|
||||
|
||||
error[E0046]: not all trait items implemented, missing: `F`
|
||||
--> $DIR/typeck_type_placeholder_item.rs:200:1
|
||||
|
|
||||
LL | type F: std::ops::Fn(_);
|
||||
| ----------------------- `F` from trait
|
||||
...
|
||||
LL | impl Qux for Struct {
|
||||
| ^^^^^^^^^^^^^^^^^^^ missing `F` in implementation
|
||||
error: aborting due to 71 previous errors
|
||||
|
||||
error: aborting due to 72 previous errors
|
||||
|
||||
Some errors have detailed explanations: E0046, E0121, E0282, E0403.
|
||||
For more information about an error, try `rustc --explain E0046`.
|
||||
Some errors have detailed explanations: E0121, E0282, E0403.
|
||||
For more information about an error, try `rustc --explain E0121`.
|
||||
|
|
|
|||
Loading…
Reference in New Issue