diff options
69 files changed, 97 insertions, 347 deletions
diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs index 577657ff794..37ef4d86989 100644 --- a/compiler/rustc_feature/src/accepted.rs +++ b/compiler/rustc_feature/src/accepted.rs @@ -338,6 +338,9 @@ declare_features! ( /// Allows `#[track_caller]` to be used which provides /// accurate caller location reporting during panic (RFC 2091). (accepted, track_caller, "1.46.0", Some(47809), None), + /// Allows dyn upcasting trait objects via supertraits. + /// Dyn upcasting is casting, e.g., `dyn Foo -> dyn Bar` where `Foo: Bar`. + (accepted, trait_upcasting, "CURRENT_RUSTC_VERSION", Some(65991), None), /// Allows #[repr(transparent)] on univariant enums (RFC 2645). (accepted, transparent_enums, "1.42.0", Some(60405), None), /// Allows indexing tuples. diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index b11b190bded..d1b3fec8a0b 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -562,9 +562,6 @@ declare_features! ( (unstable, thread_local, "1.0.0", Some(29594), None), /// Allows defining `trait X = A + B;` alias items. (unstable, trait_alias, "1.24.0", Some(41517), None), - /// Allows dyn upcasting trait objects via supertraits. - /// Dyn upcasting is casting, e.g., `dyn Foo -> dyn Bar` where `Foo: Bar`. - (unstable, trait_upcasting, "1.56.0", Some(65991), None), /// Allows for transmuting between arrays with sizes that contain generic consts. (unstable, transmute_generic_consts, "1.70.0", Some(109929), None), /// Allows #[repr(transparent)] on unions (RFC 2645). diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index 971f10631df..ae2a4a9504c 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -626,7 +626,6 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { )]; let mut has_unsized_tuple_coercion = false; - let mut has_trait_upcasting_coercion = None; // Keep resolving `CoerceUnsized` and `Unsize` predicates to avoid // emitting a coercion in cases like `Foo<$1>` -> `Foo<$2>`, where @@ -694,13 +693,6 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { // these here and emit a feature error if coercion doesn't fail // due to another reason. match impl_source { - traits::ImplSource::Builtin( - BuiltinImplSource::TraitUpcasting { .. }, - _, - ) => { - has_trait_upcasting_coercion = - Some((trait_pred.self_ty(), trait_pred.trait_ref.args.type_at(1))); - } traits::ImplSource::Builtin(BuiltinImplSource::TupleUnsizing, _) => { has_unsized_tuple_coercion = true; } @@ -711,21 +703,6 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { } } - if let Some((sub, sup)) = has_trait_upcasting_coercion - && !self.tcx().features().trait_upcasting - { - // Renders better when we erase regions, since they're not really the point here. - let (sub, sup) = self.tcx.erase_regions((sub, sup)); - let mut err = feature_err( - &self.tcx.sess.parse_sess, - sym::trait_upcasting, - self.cause.span, - format!("cannot cast `{sub}` to `{sup}`, trait upcasting coercion is experimental"), - ); - err.note(format!("required when coercing `{source}` into `{target}`")); - err.emit(); - } - if has_unsized_tuple_coercion && !self.tcx.features().unsized_tuple_coercion { feature_err( &self.tcx.sess.parse_sess, diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl index 5ea283062f1..80b21bd8ece 100644 --- a/compiler/rustc_lint/messages.ftl +++ b/compiler/rustc_lint/messages.ftl @@ -490,8 +490,9 @@ lint_requested_level = requested on the command line with `{$level} {$lint_name} lint_span_use_eq_ctxt = use `.eq_ctxt()` instead of `.ctxt() == .ctxt()` -lint_supertrait_as_deref_target = `{$t}` implements `Deref` with supertrait `{$target_principal}` as target - .label = target type is set here +lint_supertrait_as_deref_target = this `Deref` implementation is covered by an implicit supertrait coercion + .help = consider removing this implementation or replacing it with a method instead + .label = target type is a supertrait of `{$t}` lint_suspicious_double_ref_clone = using `.clone()` on a double reference, which returns `{$ty}` instead of cloning the inner type diff --git a/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs b/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs index d3e2d5c7646..93c7c37c655 100644 --- a/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs +++ b/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs @@ -5,7 +5,6 @@ use crate::{ use rustc_hir as hir; use rustc_middle::ty; -use rustc_session::lint::FutureIncompatibilityReason; use rustc_span::sym; use rustc_trait_selection::traits::supertraits; @@ -13,9 +12,6 @@ declare_lint! { /// The `deref_into_dyn_supertrait` lint is output whenever there is a use of the /// `Deref` implementation with a `dyn SuperTrait` type as `Output`. /// - /// These implementations will become shadowed when the `trait_upcasting` feature is stabilized. - /// The `deref` functions will no longer be called implicitly, so there might be behavior change. - /// /// ### Example /// /// ```rust,compile_fail @@ -44,15 +40,10 @@ declare_lint! { /// /// ### Explanation /// - /// The dyn upcasting coercion feature adds new coercion rules, taking priority - /// over certain other coercion rules, which will cause some behavior change. + /// The implicit dyn upcasting coercion take priority over those `Deref` impls. pub DEREF_INTO_DYN_SUPERTRAIT, Warn, - "`Deref` implementation usage with a supertrait trait object for output might be shadowed in the future", - @future_incompatible = FutureIncompatibleInfo { - reason: FutureIncompatibilityReason::FutureReleaseSemanticsChange, - reference: "issue #89460 <https://github.com/rust-lang/rust/issues/89460>", - }; + "`Deref` implementation usage with a supertrait trait object for output are shadow by implicit coercion", } declare_lint_pass!(DerefIntoDynSupertrait => [DEREF_INTO_DYN_SUPERTRAIT]); @@ -90,7 +81,7 @@ impl<'tcx> LateLintPass<'tcx> for DerefIntoDynSupertrait { cx.emit_spanned_lint( DEREF_INTO_DYN_SUPERTRAIT, tcx.def_span(item.owner_id.def_id), - SupertraitAsDerefTarget { t, target_principal, label }, + SupertraitAsDerefTarget { t, label }, ); } } diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index c82ba70908d..7fe488e1243 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -10,9 +10,7 @@ use rustc_errors::{ }; use rustc_hir::def_id::DefId; use rustc_macros::{LintDiagnostic, Subdiagnostic}; -use rustc_middle::ty::{ - inhabitedness::InhabitedPredicate, Clause, PolyExistentialTraitRef, Ty, TyCtxt, -}; +use rustc_middle::ty::{inhabitedness::InhabitedPredicate, Clause, Ty, TyCtxt}; use rustc_session::parse::ParseSess; use rustc_span::{edition::Edition, sym, symbol::Ident, Span, Symbol}; @@ -556,9 +554,9 @@ pub enum BuiltinSpecialModuleNameUsed { // deref_into_dyn_supertrait.rs #[derive(LintDiagnostic)] #[diag(lint_supertrait_as_deref_target)] +#[help] pub struct SupertraitAsDerefTarget<'a> { pub t: Ty<'a>, - pub target_principal: PolyExistentialTraitRef<'a>, #[subdiagnostic] pub label: Option<SupertraitAsDerefTargetLabel>, } diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs index 4af875e8d79..e5244c1862e 100644 --- a/compiler/rustc_middle/src/lib.rs +++ b/compiler/rustc_middle/src/lib.rs @@ -49,7 +49,7 @@ #![feature(associated_type_bounds)] #![feature(rustc_attrs)] #![feature(control_flow_enum)] -#![feature(trait_upcasting)] +#![cfg_attr(bootstrap, feature(trait_upcasting))] #![feature(trusted_step)] #![feature(try_blocks)] #![feature(try_reserve_kind)] diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs index 307a36761f2..310711f91a7 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -9,13 +9,10 @@ use hir::def_id::DefId; use hir::LangItem; use rustc_hir as hir; -use rustc_infer::traits::ObligationCause; use rustc_infer::traits::{Obligation, PolyTraitObligation, SelectionError}; use rustc_middle::ty::fast_reject::{DeepRejectCtxt, TreatParams}; use rustc_middle::ty::{self, Ty, TypeVisitableExt}; -use crate::traits; -use crate::traits::query::evaluate_obligation::InferCtxtExt; use crate::traits::util; use super::BuiltinImplConditions; @@ -690,45 +687,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { }) } - /// Temporary migration for #89190 - fn need_migrate_deref_output_trait_object( - &mut self, - ty: Ty<'tcx>, - param_env: ty::ParamEnv<'tcx>, - cause: &ObligationCause<'tcx>, - ) -> Option<ty::PolyExistentialTraitRef<'tcx>> { - let tcx = self.tcx(); - if tcx.features().trait_upcasting { - return None; - } - - // <ty as Deref> - let trait_ref = ty::TraitRef::new(tcx, tcx.lang_items().deref_trait()?, [ty]); - - let obligation = - traits::Obligation::new(tcx, cause.clone(), param_env, ty::Binder::dummy(trait_ref)); - if !self.infcx.predicate_may_hold(&obligation) { - return None; - } - - self.infcx.probe(|_| { - let ty = traits::normalize_projection_type( - self, - param_env, - ty::AliasTy::new(tcx, tcx.lang_items().deref_target()?, trait_ref.args), - cause.clone(), - 0, - // We're *intentionally* throwing these away, - // since we don't actually use them. - &mut vec![], - ) - .ty() - .unwrap(); - - if let ty::Dynamic(data, ..) = ty.kind() { data.principal() } else { None } - }) - } - /// Searches for unsizing that might apply to `obligation`. fn assemble_candidates_for_unsizing( &mut self, @@ -786,15 +744,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let principal_a = a_data.principal().unwrap(); let target_trait_did = principal_def_id_b.unwrap(); let source_trait_ref = principal_a.with_self_ty(self.tcx(), source); - if let Some(deref_trait_ref) = self.need_migrate_deref_output_trait_object( - source, - obligation.param_env, - &obligation.cause, - ) { - if deref_trait_ref.def_id() == target_trait_did { - return; - } - } for (idx, upcast_trait_ref) in util::supertraits(self.tcx(), source_trait_ref).enumerate() diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs index 3a459052d26..3fbb058b09b 100644 --- a/library/core/tests/lib.rs +++ b/library/core/tests/lib.rs @@ -111,7 +111,7 @@ #![feature(slice_flatten)] #![feature(error_generic_member_access)] #![feature(error_in_core)] -#![feature(trait_upcasting)] +#![cfg_attr(bootstrap, feature(trait_upcasting))] #![feature(utf8_chunks)] #![feature(is_ascii_octdigit)] #![feature(get_many_mut)] diff --git a/src/doc/unstable-book/src/language-features/trait-upcasting.md b/src/doc/unstable-book/src/language-features/trait-upcasting.md deleted file mode 100644 index 3697ae38f9d..00000000000 --- a/src/doc/unstable-book/src/language-features/trait-upcasting.md +++ /dev/null @@ -1,27 +0,0 @@ -# `trait_upcasting` - -The tracking issue for this feature is: [#65991] - -[#65991]: https://github.com/rust-lang/rust/issues/65991 - ------------------------- - -The `trait_upcasting` feature adds support for trait upcasting coercion. This allows a -trait object of type `dyn Bar` to be cast to a trait object of type `dyn Foo` -so long as `Bar: Foo`. - -```rust,edition2018 -#![feature(trait_upcasting)] -#![allow(incomplete_features)] - -trait Foo {} - -trait Bar: Foo {} - -impl Foo for i32 {} - -impl<T: Foo + ?Sized> Bar for T {} - -let bar: &dyn Bar = &123; -let foo: &dyn Foo = bar; -``` diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs index 119ec555b2e..d906553ec40 100644 --- a/src/tools/miri/src/lib.rs +++ b/src/tools/miri/src/lib.rs @@ -11,7 +11,7 @@ #![feature(round_ties_even)] #![feature(let_chains)] #![feature(lint_reasons)] -#![feature(trait_upcasting)] +#![cfg_attr(bootstrap, feature(trait_upcasting))] // Configure clippy and other lints #![allow( clippy::collapsible_else_if, diff --git a/src/tools/miri/tests/fail/dyn-upcast-trait-mismatch.rs b/src/tools/miri/tests/fail/dyn-upcast-trait-mismatch.rs index 648ac07c43e..7d46ecd8f6e 100644 --- a/src/tools/miri/tests/fail/dyn-upcast-trait-mismatch.rs +++ b/src/tools/miri/tests/fail/dyn-upcast-trait-mismatch.rs @@ -1,6 +1,3 @@ -#![feature(trait_upcasting)] -#![allow(incomplete_features)] - trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync { fn a(&self) -> i32 { 10 diff --git a/src/tools/miri/tests/pass/box-custom-alloc.rs b/src/tools/miri/tests/pass/box-custom-alloc.rs index 155e3d74ab9..3d055961d15 100644 --- a/src/tools/miri/tests/pass/box-custom-alloc.rs +++ b/src/tools/miri/tests/pass/box-custom-alloc.rs @@ -1,7 +1,6 @@ //@revisions: stack tree //@[tree]compile-flags: -Zmiri-tree-borrows -#![allow(incomplete_features)] // for trait upcasting -#![feature(allocator_api, trait_upcasting)] +#![feature(allocator_api)] use std::alloc::Layout; use std::alloc::{AllocError, Allocator}; diff --git a/src/tools/miri/tests/pass/dyn-upcast.rs b/src/tools/miri/tests/pass/dyn-upcast.rs index 8432012a9ba..ddaefeca3a3 100644 --- a/src/tools/miri/tests/pass/dyn-upcast.rs +++ b/src/tools/miri/tests/pass/dyn-upcast.rs @@ -1,6 +1,3 @@ -#![feature(trait_upcasting)] -#![allow(incomplete_features)] - fn main() { basic(); diamond(); diff --git a/tests/ui/codegen/issue-99551.rs b/tests/ui/codegen/issue-99551.rs index b223aff4e94..9e203fba113 100644 --- a/tests/ui/codegen/issue-99551.rs +++ b/tests/ui/codegen/issue-99551.rs @@ -1,5 +1,4 @@ // build-pass -#![feature(trait_upcasting)] pub trait A {} pub trait B {} diff --git a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs b/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs index a4eb669e321..0201c889706 100644 --- a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs +++ b/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs @@ -1,4 +1,4 @@ -#![feature(dyn_star, trait_upcasting)] +#![feature(dyn_star)] //~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes trait A: B {} diff --git a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr b/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr index c7f1a4b9ae1..50aa79f5c0f 100644 --- a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr +++ b/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr @@ -1,7 +1,7 @@ warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/no-unsize-coerce-dyn-trait.rs:1:12 | -LL | #![feature(dyn_star, trait_upcasting)] +LL | #![feature(dyn_star)] | ^^^^^^^^ | = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information diff --git a/tests/ui/dyn-star/upcast.rs b/tests/ui/dyn-star/upcast.rs index c667ac143a3..7748cdda943 100644 --- a/tests/ui/dyn-star/upcast.rs +++ b/tests/ui/dyn-star/upcast.rs @@ -1,6 +1,6 @@ // known-bug: #104800 -#![feature(dyn_star, trait_upcasting)] +#![feature(dyn_star)] trait Foo: Bar { fn hello(&self); diff --git a/tests/ui/dyn-star/upcast.stderr b/tests/ui/dyn-star/upcast.stderr index 8b34c7f8b71..a7a40c80186 100644 --- a/tests/ui/dyn-star/upcast.stderr +++ b/tests/ui/dyn-star/upcast.stderr @@ -1,7 +1,7 @@ warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/upcast.rs:3:12 | -LL | #![feature(dyn_star, trait_upcasting)] +LL | #![feature(dyn_star)] | ^^^^^^^^ | = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information diff --git a/tests/ui/feature-gates/feature-gate-trait_upcasting.rs b/tests/ui/feature-gates/feature-gate-trait_upcasting.rs deleted file mode 100644 index e4102f1cfa7..00000000000 --- a/tests/ui/feature-gates/feature-gate-trait_upcasting.rs +++ /dev/null @@ -1,13 +0,0 @@ -trait Foo {} - -trait Bar: Foo {} - -impl Foo for () {} - -impl Bar for () {} - -fn main() { - let bar: &dyn Bar = &(); - let foo: &dyn Foo = bar; - //~^ ERROR trait upcasting coercion is experimental [E0658] -} diff --git a/tests/ui/feature-gates/feature-gate-trait_upcasting.stderr b/tests/ui/feature-gates/feature-gate-trait_upcasting.stderr deleted file mode 100644 index 93afa78459d..00000000000 --- a/tests/ui/feature-gates/feature-gate-trait_upcasting.stderr +++ /dev/null @@ -1,13 +0,0 @@ -error[E0658]: cannot cast `dyn Bar` to `dyn Foo`, trait upcasting coercion is experimental - --> $DIR/feature-gate-trait_upcasting.rs:11:25 - | -LL | let foo: &dyn Foo = bar; - | ^^^ - | - = note: see issue #65991 <https://github.com/rust-lang/rust/issues/65991> for more information - = help: add `#![feature(trait_upcasting)]` to the crate attributes to enable - = note: required when coercing `&dyn Bar` into `&dyn Foo` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/new-solver/normalize-unsize-rhs.rs b/tests/ui/traits/new-solver/normalize-unsize-rhs.rs index a398ab4f2f2..1bb5c9b4111 100644 --- a/tests/ui/traits/new-solver/normalize-unsize-rhs.rs +++ b/tests/ui/traits/new-solver/normalize-unsize-rhs.rs @@ -1,8 +1,6 @@ // compile-flags: -Ztrait-solver=next // check-pass -#![feature(trait_upcasting)] - trait A {} trait B: A {} diff --git a/tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs b/tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs index 43cd773bf3c..79114b93b78 100644 --- a/tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs +++ b/tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs @@ -1,8 +1,6 @@ // check-pass // compile-flags: -Ztrait-solver=next -#![feature(trait_upcasting)] - pub trait A {} pub trait B: A {} diff --git a/tests/ui/traits/new-solver/upcast-right-substs.rs b/tests/ui/traits/new-solver/upcast-right-substs.rs index c19c82acf24..97eb189d5c7 100644 --- a/tests/ui/traits/new-solver/upcast-right-substs.rs +++ b/tests/ui/traits/new-solver/upcast-right-substs.rs @@ -1,8 +1,6 @@ // compile-flags: -Ztrait-solver=next // check-pass -#![feature(trait_upcasting)] - trait Foo: Bar<i32> + Bar<u32> {} trait Bar<T> {} diff --git a/tests/ui/traits/new-solver/upcast-wrong-substs.rs b/tests/ui/traits/new-solver/upcast-wrong-substs.rs index f2d04d932bb..3376f9787d3 100644 --- a/tests/ui/traits/new-solver/upcast-wrong-substs.rs +++ b/tests/ui/traits/new-solver/upcast-wrong-substs.rs @@ -1,7 +1,5 @@ // compile-flags: -Ztrait-solver=next -#![feature(trait_upcasting)] - trait Foo: Bar<i32> + Bar<u32> {} trait Bar<T> {} diff --git a/tests/ui/traits/new-solver/upcast-wrong-substs.stderr b/tests/ui/traits/new-solver/upcast-wrong-substs.stderr index 8623f395f59..7d16aaa9a16 100644 --- a/tests/ui/traits/new-solver/upcast-wrong-substs.stderr +++ b/tests/ui/traits/new-solver/upcast-wrong-substs.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/upcast-wrong-substs.rs:11:30 + --> $DIR/upcast-wrong-substs.rs:9:30 | LL | let y: &dyn Bar<usize> = x; | --------------- ^ expected trait `Bar`, found trait `Foo` diff --git a/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.rs b/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.rs index 4a5e445d1ef..927a9d6b94f 100644 --- a/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.rs +++ b/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.rs @@ -1,4 +1,3 @@ -#![feature(trait_upcasting)] #![feature(trait_alias)] // Although we *elaborate* `T: Alias` to `i32: B`, we should diff --git a/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.stderr b/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.stderr index 5574a032089..c4f00c9f55f 100644 --- a/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.stderr +++ b/tests/ui/traits/trait-upcasting/alias-where-clause-isnt-supertrait.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/alias-where-clause-isnt-supertrait.rs:27:5 + --> $DIR/alias-where-clause-isnt-supertrait.rs:26:5 | LL | fn test(x: &dyn C) -> &dyn B { | ------ expected `&dyn B` because of return type diff --git a/tests/ui/traits/trait-upcasting/basic.rs b/tests/ui/traits/trait-upcasting/basic.rs index 570ec5160bf..538cd8329cc 100644 --- a/tests/ui/traits/trait-upcasting/basic.rs +++ b/tests/ui/traits/trait-upcasting/basic.rs @@ -1,7 +1,5 @@ // run-pass -#![feature(trait_upcasting)] - trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync { fn a(&self) -> i32 { 10 diff --git a/tests/ui/traits/trait-upcasting/correct-supertrait-substitution.rs b/tests/ui/traits/trait-upcasting/correct-supertrait-substitution.rs index eae5cf8d58d..4a379d9f875 100644 --- a/tests/ui/traits/trait-upcasting/correct-supertrait-substitution.rs +++ b/tests/ui/traits/trait-upcasting/correct-supertrait-substitution.rs @@ -1,5 +1,4 @@ // run-pass -#![feature(trait_upcasting)] trait Foo<T: Default + ToString>: Bar<i32> + Bar<T> {} trait Bar<T: Default + ToString> { diff --git a/tests/ui/traits/trait-upcasting/migrate-lint-deny-regions.rs b/tests/ui/traits/trait-upcasting/deref-lint-regions.rs index b3f14a5f256..946305cbb2b 100644 --- a/tests/ui/traits/trait-upcasting/migrate-lint-deny-regions.rs +++ b/tests/ui/traits/trait-upcasting/deref-lint-regions.rs @@ -1,4 +1,4 @@ -#![deny(deref_into_dyn_supertrait)] +// check-pass use std::ops::Deref; @@ -6,8 +6,7 @@ trait Bar<'a> {} trait Foo<'a>: Bar<'a> {} impl<'a> Deref for dyn Foo<'a> { - //~^ ERROR dyn Foo<'_>` implements `Deref` with supertrait `Bar<'_>` as target - //~| WARN this will change its meaning in a future release! + //~^ WARN this `Deref` implementation is covered by an implicit supertrait coercion type Target = dyn Bar<'a>; fn deref(&self) -> &Self::Target { diff --git a/tests/ui/traits/trait-upcasting/deref-lint-regions.stderr b/tests/ui/traits/trait-upcasting/deref-lint-regions.stderr new file mode 100644 index 00000000000..dd4aa8e9a07 --- /dev/null +++ b/tests/ui/traits/trait-upcasting/deref-lint-regions.stderr @@ -0,0 +1,14 @@ +warning: this `Deref` implementation is covered by an implicit supertrait coercion + --> $DIR/deref-lint-regions.rs:8:1 + | +LL | impl<'a> Deref for dyn Foo<'a> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | +LL | type Target = dyn Bar<'a>; + | -------------------------- target type is a supertrait of `dyn Foo<'_>` + | + = help: consider removing this implementation or replacing it with a method instead + = note: `#[warn(deref_into_dyn_supertrait)]` on by default + +warning: 1 warning emitted + diff --git a/tests/ui/traits/trait-upcasting/migrate-lint-deny.rs b/tests/ui/traits/trait-upcasting/deref-lint.rs index 114d2c249da..dfca7b0fa68 100644 --- a/tests/ui/traits/trait-upcasting/migrate-lint-deny.rs +++ b/tests/ui/traits/trait-upcasting/deref-lint.rs @@ -1,4 +1,4 @@ -#![deny(deref_into_dyn_supertrait)] +// check-pass use std::ops::Deref; @@ -7,9 +7,7 @@ trait A {} trait B: A {} impl<'a> Deref for dyn 'a + B { - //~^ ERROR `dyn B` implements `Deref` with supertrait `A` as target - //~| WARN this will change its meaning in a future release! - + //~^ WARN this `Deref` implementation is covered by an implicit supertrait coercion type Target = dyn A; fn deref(&self) -> &Self::Target { todo!() diff --git a/tests/ui/traits/trait-upcasting/deref-lint.stderr b/tests/ui/traits/trait-upcasting/deref-lint.stderr new file mode 100644 index 00000000000..0f7a61dfa80 --- /dev/null +++ b/tests/ui/traits/trait-upcasting/deref-lint.stderr @@ -0,0 +1,14 @@ +warning: this `Deref` implementation is covered by an implicit supertrait coercion + --> $DIR/deref-lint.rs:9:1 + | +LL | impl<'a> Deref for dyn 'a + B { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | +LL | type Target = dyn A; + | -------------------- target type is a supertrait of `dyn B` + | + = help: consider removing this implementation or replacing it with a method instead + = note: `#[warn(deref_into_dyn_supertrait)]` on by default + +warning: 1 warning emitted + diff --git a/tests/ui/traits/trait-upcasting/diamond.rs b/tests/ui/traits/trait-upcasting/diamond.rs index a4f81c464b4..9a78339a4ec 100644 --- a/tests/ui/traits/trait-upcasting/diamond.rs +++ b/tests/ui/traits/trait-upcasting/diamond.rs @@ -1,7 +1,5 @@ // run-pass -#![feature(trait_upcasting)] - trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync { fn a(&self) -> i32 { 10 diff --git a/tests/ui/traits/trait-upcasting/fewer-associated.rs b/tests/ui/traits/trait-upcasting/fewer-associated.rs index 8228eea2681..937818aac58 100644 --- a/tests/ui/traits/trait-upcasting/fewer-associated.rs +++ b/tests/ui/traits/trait-upcasting/fewer-associated.rs @@ -3,8 +3,6 @@ // revisions: current next //[next] compile-flags: -Ztrait-solver=next -#![feature(trait_upcasting)] - trait A: B { type Assoc; } diff --git a/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.current.stderr b/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.current.stderr index 59c9d573705..a1b671b4a32 100644 --- a/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.current.stderr +++ b/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.current.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/illegal-upcast-from-impl.rs:16:66 + --> $DIR/illegal-upcast-from-impl.rs:14:66 | LL | fn illegal(x: &dyn Sub<Assoc = ()>) -> &dyn Super<Assoc = i32> { x } | ----------------------- ^ expected trait `Super`, found trait `Sub` diff --git a/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.next.stderr b/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.next.stderr index 59c9d573705..a1b671b4a32 100644 --- a/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.next.stderr +++ b/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.next.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/illegal-upcast-from-impl.rs:16:66 + --> $DIR/illegal-upcast-from-impl.rs:14:66 | LL | fn illegal(x: &dyn Sub<Assoc = ()>) -> &dyn Super<Assoc = i32> { x } | ----------------------- ^ expected trait `Super`, found trait `Sub` diff --git a/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.rs b/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.rs index 774474281ea..4b730dab7cc 100644 --- a/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.rs +++ b/tests/ui/traits/trait-upcasting/illegal-upcast-from-impl.rs @@ -1,8 +1,6 @@ // revisions: current next //[next] compile-flags: -Ztrait-solver=next -#![feature(trait_upcasting)] - trait Super { type Assoc; } diff --git a/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.rs b/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.rs index 79fb643eacd..999f3b16f50 100644 --- a/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.rs +++ b/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.rs @@ -1,5 +1,4 @@ #![deny(deref_into_dyn_supertrait)] -#![feature(trait_upcasting)] // remove this and the test compiles use std::ops::Deref; diff --git a/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.stderr b/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.stderr index cfd6f7f175f..48d331e81b0 100644 --- a/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.stderr +++ b/tests/ui/traits/trait-upcasting/inference-behavior-change-deref.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/inference-behavior-change-deref.rs:34:18 + --> $DIR/inference-behavior-change-deref.rs:33:18 | LL | let z: u32 = y; | --- ^ expected `u32`, found `i32` diff --git a/tests/ui/traits/trait-upcasting/invalid-upcast.rs b/tests/ui/traits/trait-upcasting/invalid-upcast.rs index e634bbd5ac6..9269a5e3e9f 100644 --- a/tests/ui/traits/trait-upcasting/invalid-upcast.rs +++ b/tests/ui/traits/trait-upcasting/invalid-upcast.rs @@ -1,5 +1,3 @@ -#![feature(trait_upcasting)] - trait Foo { fn a(&self) -> i32 { 10 diff --git a/tests/ui/traits/trait-upcasting/invalid-upcast.stderr b/tests/ui/traits/trait-upcasting/invalid-upcast.stderr index 3aa21ee3ddd..e70b99d28c7 100644 --- a/tests/ui/traits/trait-upcasting/invalid-upcast.stderr +++ b/tests/ui/traits/trait-upcasting/invalid-upcast.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:53:35 + --> $DIR/invalid-upcast.rs:51:35 | LL | let _: &dyn std::fmt::Debug = baz; | -------------------- ^^^ expected trait `Debug`, found trait `Baz` @@ -10,7 +10,7 @@ LL | let _: &dyn std::fmt::Debug = baz; found reference `&dyn Baz` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:55:24 + --> $DIR/invalid-upcast.rs:53:24 | LL | let _: &dyn Send = baz; | --------- ^^^ expected trait `Send`, found trait `Baz` @@ -21,7 +21,7 @@ LL | let _: &dyn Send = baz; found reference `&dyn Baz` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:57:24 + --> $DIR/invalid-upcast.rs:55:24 | LL | let _: &dyn Sync = baz; | --------- ^^^ expected trait `Sync`, found trait `Baz` @@ -32,7 +32,7 @@ LL | let _: &dyn Sync = baz; found reference `&dyn Baz` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:60:25 + --> $DIR/invalid-upcast.rs:58:25 | LL | let bar: &dyn Bar = baz; | -------- ^^^ expected trait `Bar`, found trait `Baz` @@ -43,7 +43,7 @@ LL | let bar: &dyn Bar = baz; found reference `&dyn Baz` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:62:35 + --> $DIR/invalid-upcast.rs:60:35 | LL | let _: &dyn std::fmt::Debug = bar; | -------------------- ^^^ expected trait `Debug`, found trait `Bar` @@ -54,7 +54,7 @@ LL | let _: &dyn std::fmt::Debug = bar; found reference `&dyn Bar` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:64:24 + --> $DIR/invalid-upcast.rs:62:24 | LL | let _: &dyn Send = bar; | --------- ^^^ expected trait `Send`, found trait `Bar` @@ -65,7 +65,7 @@ LL | let _: &dyn Send = bar; found reference `&dyn Bar` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:66:24 + --> $DIR/invalid-upcast.rs:64:24 | LL | let _: &dyn Sync = bar; | --------- ^^^ expected trait `Sync`, found trait `Bar` @@ -76,7 +76,7 @@ LL | let _: &dyn Sync = bar; found reference `&dyn Bar` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:69:25 + --> $DIR/invalid-upcast.rs:67:25 | LL | let foo: &dyn Foo = baz; | -------- ^^^ expected trait `Foo`, found trait `Baz` @@ -87,7 +87,7 @@ LL | let foo: &dyn Foo = baz; found reference `&dyn Baz` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:71:35 + --> $DIR/invalid-upcast.rs:69:35 | LL | let _: &dyn std::fmt::Debug = foo; | -------------------- ^^^ expected trait `Debug`, found trait `Foo` @@ -98,7 +98,7 @@ LL | let _: &dyn std::fmt::Debug = foo; found reference `&dyn Foo` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:73:24 + --> $DIR/invalid-upcast.rs:71:24 | LL | let _: &dyn Send = foo; | --------- ^^^ expected trait `Send`, found trait `Foo` @@ -109,7 +109,7 @@ LL | let _: &dyn Send = foo; found reference `&dyn Foo` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:75:24 + --> $DIR/invalid-upcast.rs:73:24 | LL | let _: &dyn Sync = foo; | --------- ^^^ expected trait `Sync`, found trait `Foo` @@ -120,7 +120,7 @@ LL | let _: &dyn Sync = foo; found reference `&dyn Foo` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:78:25 + --> $DIR/invalid-upcast.rs:76:25 | LL | let foo: &dyn Foo = bar; | -------- ^^^ expected trait `Foo`, found trait `Bar` @@ -131,7 +131,7 @@ LL | let foo: &dyn Foo = bar; found reference `&dyn Bar` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:80:35 + --> $DIR/invalid-upcast.rs:78:35 | LL | let _: &dyn std::fmt::Debug = foo; | -------------------- ^^^ expected trait `Debug`, found trait `Foo` @@ -142,7 +142,7 @@ LL | let _: &dyn std::fmt::Debug = foo; found reference `&dyn Foo` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:82:24 + --> $DIR/invalid-upcast.rs:80:24 | LL | let _: &dyn Send = foo; | --------- ^^^ expected trait `Send`, found trait `Foo` @@ -153,7 +153,7 @@ LL | let _: &dyn Send = foo; found reference `&dyn Foo` error[E0308]: mismatched types - --> $DIR/invalid-upcast.rs:84:24 + --> $DIR/invalid-upcast.rs:82:24 | LL | let _: &dyn Sync = foo; | --------- ^^^ expected trait `Sync`, found trait `Foo` diff --git a/tests/ui/traits/trait-upcasting/issue-11515-upcast-fn_mut-fn.rs b/tests/ui/traits/trait-upcasting/issue-11515-upcast-fn_mut-fn.rs index b672963ae98..77ce627078f 100644 --- a/tests/ui/traits/trait-upcasting/issue-11515-upcast-fn_mut-fn.rs +++ b/tests/ui/traits/trait-upcasting/issue-11515-upcast-fn_mut-fn.rs @@ -1,5 +1,4 @@ // run-pass -#![feature(trait_upcasting)] struct Test { func: Box<dyn FnMut() + 'static>, diff --git a/tests/ui/traits/trait-upcasting/issue-11515.current.stderr b/tests/ui/traits/trait-upcasting/issue-11515.current.stderr deleted file mode 100644 index 97d66cccb25..00000000000 --- a/tests/ui/traits/trait-upcasting/issue-11515.current.stderr +++ /dev/null @@ -1,13 +0,0 @@ -error[E0658]: cannot cast `dyn Fn()` to `dyn FnMut()`, trait upcasting coercion is experimental - --> $DIR/issue-11515.rs:10:38 - | -LL | let test = Box::new(Test { func: closure }); - | ^^^^^^^ - | - = note: see issue #65991 <https://github.com/rust-lang/rust/issues/65991> for more information - = help: add `#![feature(trait_upcasting)]` to the crate attributes to enable - = note: required when coercing `Box<(dyn Fn() + 'static)>` into `Box<(dyn FnMut() + 'static)>` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/trait-upcasting/issue-11515.next.stderr b/tests/ui/traits/trait-upcasting/issue-11515.next.stderr deleted file mode 100644 index 97d66cccb25..00000000000 --- a/tests/ui/traits/trait-upcasting/issue-11515.next.stderr +++ /dev/null @@ -1,13 +0,0 @@ -error[E0658]: cannot cast `dyn Fn()` to `dyn FnMut()`, trait upcasting coercion is experimental - --> $DIR/issue-11515.rs:10:38 - | -LL | let test = Box::new(Test { func: closure }); - | ^^^^^^^ - | - = note: see issue #65991 <https://github.com/rust-lang/rust/issues/65991> for more information - = help: add `#![feature(trait_upcasting)]` to the crate attributes to enable - = note: required when coercing `Box<(dyn Fn() + 'static)>` into `Box<(dyn FnMut() + 'static)>` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/trait-upcasting/issue-11515.rs b/tests/ui/traits/trait-upcasting/issue-11515.rs index 723f3a24fd4..66ab1ce260a 100644 --- a/tests/ui/traits/trait-upcasting/issue-11515.rs +++ b/tests/ui/traits/trait-upcasting/issue-11515.rs @@ -1,3 +1,4 @@ +// check-pass // revisions: current next //[next] compile-flags: -Ztrait-solver=next @@ -7,5 +8,5 @@ struct Test { fn main() { let closure: Box<dyn Fn() + 'static> = Box::new(|| ()); - let test = Box::new(Test { func: closure }); //~ ERROR trait upcasting coercion is experimental [E0658] + let test = Box::new(Test { func: closure }); } diff --git a/tests/ui/traits/trait-upcasting/lifetime.rs b/tests/ui/traits/trait-upcasting/lifetime.rs index 9825158c2dd..6c65c38870f 100644 --- a/tests/ui/traits/trait-upcasting/lifetime.rs +++ b/tests/ui/traits/trait-upcasting/lifetime.rs @@ -1,7 +1,5 @@ // run-pass -#![feature(trait_upcasting)] - trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync { fn a(&self) -> i32 { 10 diff --git a/tests/ui/traits/trait-upcasting/migrate-lint-deny-regions.stderr b/tests/ui/traits/trait-upcasting/migrate-lint-deny-regions.stderr deleted file mode 100644 index 250bcabc698..00000000000 --- a/tests/ui/traits/trait-upcasting/migrate-lint-deny-regions.stderr +++ /dev/null @@ -1,19 +0,0 @@ -error: `dyn Foo<'_>` implements `Deref` with supertrait `Bar<'_>` as target - --> $DIR/migrate-lint-deny-regions.rs:8:1 - | -LL | impl<'a> Deref for dyn Foo<'a> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -... -LL | type Target = dyn Bar<'a>; - | -------------------------- target type is set here - | - = warning: this will change its meaning in a future release! - = note: for more information, see issue #89460 <https://github.com/rust-lang/rust/issues/89460> -note: the lint level is defined here - --> $DIR/migrate-lint-deny-regions.rs:1:9 - | -LL | #![deny(deref_into_dyn_supertrait)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to previous error - diff --git a/tests/ui/traits/trait-upcasting/migrate-lint-deny.stderr b/tests/ui/traits/trait-upcasting/migrate-lint-deny.stderr deleted file mode 100644 index c8b683c23c1..00000000000 --- a/tests/ui/traits/trait-upcasting/migrate-lint-deny.stderr +++ /dev/null @@ -1,19 +0,0 @@ -error: `dyn B` implements `Deref` with supertrait `A` as target - --> $DIR/migrate-lint-deny.rs:9:1 - | -LL | impl<'a> Deref for dyn 'a + B { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -... -LL | type Target = dyn A; - | -------------------- target type is set here - | - = warning: this will change its meaning in a future release! - = note: for more information, see issue #89460 <https://github.com/rust-lang/rust/issues/89460> -note: the lint level is defined here - --> $DIR/migrate-lint-deny.rs:1:9 - | -LL | #![deny(deref_into_dyn_supertrait)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to previous error - diff --git a/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.rs b/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.rs index 2e53a00a90e..0e17c276717 100644 --- a/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.rs +++ b/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.rs @@ -1,5 +1,4 @@ // check-fail -#![feature(trait_upcasting)] trait Bar<T> { fn bar(&self, _: T) {} diff --git a/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.stderr b/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.stderr index 0ad18be03cd..ea44a81e2a7 100644 --- a/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.stderr +++ b/tests/ui/traits/trait-upcasting/multiple-occurrence-ambiguousity.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/multiple-occurrence-ambiguousity.rs:20:26 + --> $DIR/multiple-occurrence-ambiguousity.rs:19:26 | LL | let t: &dyn Bar<_> = s; | ----------- ^ expected trait `Bar`, found trait `Foo` diff --git a/tests/ui/traits/trait-upcasting/normalization.rs b/tests/ui/traits/trait-upcasting/normalization.rs index c78338b0da9..c57640e7e34 100644 --- a/tests/ui/traits/trait-upcasting/normalization.rs +++ b/tests/ui/traits/trait-upcasting/normalization.rs @@ -3,8 +3,6 @@ // revisions: current next //[next] compile-flags: -Ztrait-solver=next -#![feature(trait_upcasting)] - trait Mirror { type Assoc; } diff --git a/tests/ui/traits/trait-upcasting/replace-vptr.rs b/tests/ui/traits/trait-upcasting/replace-vptr.rs index 9ccfc9306ac..4a7304ec2d7 100644 --- a/tests/ui/traits/trait-upcasting/replace-vptr.rs +++ b/tests/ui/traits/trait-upcasting/replace-vptr.rs @@ -1,7 +1,5 @@ // run-pass -#![feature(trait_upcasting)] - trait A { fn foo_a(&self); } diff --git a/tests/ui/traits/trait-upcasting/struct.rs b/tests/ui/traits/trait-upcasting/struct.rs index a3e41696956..64fa9ca1b5f 100644 --- a/tests/ui/traits/trait-upcasting/struct.rs +++ b/tests/ui/traits/trait-upcasting/struct.rs @@ -1,7 +1,5 @@ // run-pass -#![feature(trait_upcasting)] - use std::rc::Rc; use std::sync::Arc; diff --git a/tests/ui/traits/trait-upcasting/subtrait-method.rs b/tests/ui/traits/trait-upcasting/subtrait-method.rs index 136d15af0e8..20277280440 100644 --- a/tests/ui/traits/trait-upcasting/subtrait-method.rs +++ b/tests/ui/traits/trait-upcasting/subtrait-method.rs @@ -1,5 +1,3 @@ -#![feature(trait_upcasting)] - trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync { fn a(&self) -> i32 { 10 diff --git a/tests/ui/traits/trait-upcasting/subtrait-method.stderr b/tests/ui/traits/trait-upcasting/subtrait-method.stderr index 918159e845b..3fdf3f48161 100644 --- a/tests/ui/traits/trait-upcasting/subtrait-method.stderr +++ b/tests/ui/traits/trait-upcasting/subtrait-method.stderr @@ -1,64 +1,64 @@ error[E0599]: no method named `c` found for reference `&dyn Bar` in the current scope - --> $DIR/subtrait-method.rs:55:9 + --> $DIR/subtrait-method.rs:53:9 | LL | bar.c(); | ^ help: there is a method with a similar name: `a` | = help: items from traits can only be used if the trait is implemented and in scope note: `Baz` defines an item `c`, perhaps you need to implement it - --> $DIR/subtrait-method.rs:27:1 + --> $DIR/subtrait-method.rs:25:1 | LL | trait Baz: Bar { | ^^^^^^^^^^^^^^ error[E0599]: no method named `b` found for reference `&dyn Foo` in the current scope - --> $DIR/subtrait-method.rs:59:9 + --> $DIR/subtrait-method.rs:57:9 | LL | foo.b(); | ^ help: there is a method with a similar name: `a` | = help: items from traits can only be used if the trait is implemented and in scope note: `Bar` defines an item `b`, perhaps you need to implement it - --> $DIR/subtrait-method.rs:17:1 + --> $DIR/subtrait-method.rs:15:1 | LL | trait Bar: Foo { | ^^^^^^^^^^^^^^ error[E0599]: no method named `c` found for reference `&dyn Foo` in the current scope - --> $DIR/subtrait-method.rs:61:9 + --> $DIR/subtrait-method.rs:59:9 | LL | foo.c(); | ^ help: there is a method with a similar name: `a` | = help: items from traits can only be used if the trait is implemented and in scope note: `Baz` defines an item `c`, perhaps you need to implement it - --> $DIR/subtrait-method.rs:27:1 + --> $DIR/subtrait-method.rs:25:1 | LL | trait Baz: Bar { | ^^^^^^^^^^^^^^ error[E0599]: no method named `b` found for reference `&dyn Foo` in the current scope - --> $DIR/subtrait-method.rs:65:9 + --> $DIR/subtrait-method.rs:63:9 | LL | foo.b(); | ^ help: there is a method with a similar name: `a` | = help: items from traits can only be used if the trait is implemented and in scope note: `Bar` defines an item `b`, perhaps you need to implement it - --> $DIR/subtrait-method.rs:17:1 + --> $DIR/subtrait-method.rs:15:1 | LL | trait Bar: Foo { | ^^^^^^^^^^^^^^ error[E0599]: no method named `c` found for reference `&dyn Foo` in the current scope - --> $DIR/subtrait-method.rs:67:9 + --> $DIR/subtrait-method.rs:65:9 | LL | foo.c(); | ^ help: there is a method with a similar name: `a` | = help: items from traits can only be used if the trait is implemented and in scope note: `Baz` defines an item `c`, perhaps you need to implement it - --> $DIR/subtrait-method.rs:27:1 + --> $DIR/subtrait-method.rs:25:1 | LL | trait Baz: Bar { | ^^^^^^^^^^^^^^ diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-1.current.stderr b/tests/ui/traits/trait-upcasting/type-checking-test-1.current.stderr index b612005fcb0..bcba37cab78 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-1.current.stderr +++ b/tests/ui/traits/trait-upcasting/type-checking-test-1.current.stderr @@ -1,5 +1,5 @@ error[E0605]: non-primitive cast: `&dyn Foo` as `&dyn Bar<_>` - --> $DIR/type-checking-test-1.rs:19:13 + --> $DIR/type-checking-test-1.rs:17:13 | LL | let _ = x as &dyn Bar<_>; // Ambiguous | ^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-1.next.stderr b/tests/ui/traits/trait-upcasting/type-checking-test-1.next.stderr index b612005fcb0..bcba37cab78 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-1.next.stderr +++ b/tests/ui/traits/trait-upcasting/type-checking-test-1.next.stderr @@ -1,5 +1,5 @@ error[E0605]: non-primitive cast: `&dyn Foo` as `&dyn Bar<_>` - --> $DIR/type-checking-test-1.rs:19:13 + --> $DIR/type-checking-test-1.rs:17:13 | LL | let _ = x as &dyn Bar<_>; // Ambiguous | ^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-1.rs b/tests/ui/traits/trait-upcasting/type-checking-test-1.rs index afea8521e87..3b6ec3b65e7 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-1.rs +++ b/tests/ui/traits/trait-upcasting/type-checking-test-1.rs @@ -1,8 +1,6 @@ // revisions: current next //[next] compile-flags: -Ztrait-solver=next -#![feature(trait_upcasting)] - trait Foo: Bar<i32> + Bar<u32> {} trait Bar<T> { fn bar(&self) -> Option<T> { diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-2.rs b/tests/ui/traits/trait-upcasting/type-checking-test-2.rs index b024b27750b..b4df0f5a902 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-2.rs +++ b/tests/ui/traits/trait-upcasting/type-checking-test-2.rs @@ -1,5 +1,3 @@ -#![feature(trait_upcasting)] - trait Foo<T>: Bar<i32> + Bar<T> {} trait Bar<T> { fn bar(&self) -> Option<T> { diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-2.stderr b/tests/ui/traits/trait-upcasting/type-checking-test-2.stderr index 3e59b9d3363..f84ea93dc67 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-2.stderr +++ b/tests/ui/traits/trait-upcasting/type-checking-test-2.stderr @@ -1,11 +1,11 @@ error[E0605]: non-primitive cast: `&dyn Foo<i32>` as `&dyn Bar<u32>` - --> $DIR/type-checking-test-2.rs:19:13 + --> $DIR/type-checking-test-2.rs:17:13 | LL | let _ = x as &dyn Bar<u32>; // Error | ^^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object error[E0605]: non-primitive cast: `&dyn Foo<u32>` as `&dyn Bar<_>` - --> $DIR/type-checking-test-2.rs:24:13 + --> $DIR/type-checking-test-2.rs:22:13 | LL | let a = x as &dyn Bar<_>; // Ambiguous | ^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-3.rs b/tests/ui/traits/trait-upcasting/type-checking-test-3.rs index b2db3a12797..3685569d98d 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-3.rs +++ b/tests/ui/traits/trait-upcasting/type-checking-test-3.rs @@ -1,5 +1,3 @@ -#![feature(trait_upcasting)] - trait Foo<'a>: Bar<'a> {} trait Bar<'a> {} diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-3.stderr b/tests/ui/traits/trait-upcasting/type-checking-test-3.stderr index e6cb6a75399..640a6066268 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-3.stderr +++ b/tests/ui/traits/trait-upcasting/type-checking-test-3.stderr @@ -1,5 +1,5 @@ error: lifetime may not live long enough - --> $DIR/type-checking-test-3.rs:11:13 + --> $DIR/type-checking-test-3.rs:9:13 | LL | fn test_wrong1<'a>(x: &dyn Foo<'static>, y: &'a u32) { | -- lifetime `'a` defined here @@ -7,7 +7,7 @@ LL | let _ = x as &dyn Bar<'a>; // Error | ^^^^^^^^^^^^^^^^^ type annotation requires that `'a` must outlive `'static` error: lifetime may not live long enough - --> $DIR/type-checking-test-3.rs:16:13 + --> $DIR/type-checking-test-3.rs:14:13 | LL | fn test_wrong2<'a>(x: &dyn Foo<'a>) { | -- lifetime `'a` defined here diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-4.rs b/tests/ui/traits/trait-upcasting/type-checking-test-4.rs index f40c48f0d12..65391502386 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-4.rs +++ b/tests/ui/traits/trait-upcasting/type-checking-test-4.rs @@ -1,5 +1,3 @@ -#![feature(trait_upcasting)] - trait Foo<'a>: Bar<'a, 'a> {} trait Bar<'a, 'b> { fn get_b(&self) -> Option<&'a u32> { diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-4.stderr b/tests/ui/traits/trait-upcasting/type-checking-test-4.stderr index 8d506e5807e..7e7548955d3 100644 --- a/tests/ui/traits/trait-upcasting/type-checking-test-4.stderr +++ b/tests/ui/traits/trait-upcasting/type-checking-test-4.stderr @@ -1,5 +1,5 @@ error: lifetime may not live long enough - --> $DIR/type-checking-test-4.rs:15:13 + --> $DIR/type-checking-test-4.rs:13:13 | LL | fn test_wrong1<'a>(x: &dyn Foo<'static>, y: &'a u32) { | -- lifetime `'a` defined here @@ -7,7 +7,7 @@ LL | let _ = x as &dyn Bar<'static, 'a>; // Error | ^^^^^^^^^^^^^^^^^^^^^^^^^^ type annotation requires that `'a` must outlive `'static` error: lifetime may not live long enough - --> $DIR/type-checking-test-4.rs:20:13 + --> $DIR/type-checking-test-4.rs:18:13 | LL | fn test_wrong2<'a>(x: &dyn Foo<'static>, y: &'a u32) { | -- lifetime `'a` defined here @@ -15,7 +15,7 @@ LL | let _ = x as &dyn Bar<'a, 'static>; // Error | ^^^^^^^^^^^^^^^^^^^^^^^^^^ type annotation requires that `'a` must outlive `'static` error: lifetime may not live long enough - --> $DIR/type-checking-test-4.rs:26:5 + --> $DIR/type-checking-test-4.rs:24:5 | LL | fn test_wrong3<'a>(x: &dyn Foo<'a>) -> Option<&'static u32> { | -- lifetime `'a` defined here @@ -24,7 +24,7 @@ LL | y.get_b() // ERROR | ^^^^^^^^^ returning this value requires that `'a` must outlive `'static` error: lifetime may not live long enough - --> $DIR/type-checking-test-4.rs:31:5 + --> $DIR/type-checking-test-4.rs:29:5 | LL | fn test_wrong4<'a>(x: &dyn Foo<'a>) -> Option<&'static u32> { | -- lifetime `'a` defined here @@ -32,7 +32,7 @@ LL | <_ as Bar>::get_b(x) // ERROR | ^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'a` must outlive `'static` error: lifetime may not live long enough - --> $DIR/type-checking-test-4.rs:36:5 + --> $DIR/type-checking-test-4.rs:34:5 | LL | fn test_wrong5<'a>(x: &dyn Foo<'a>) -> Option<&'static u32> { | -- lifetime `'a` defined here @@ -40,7 +40,7 @@ LL | <_ as Bar<'_, '_>>::get_b(x) // ERROR | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'a` must outlive `'static` error: lifetime may not live long enough - --> $DIR/type-checking-test-4.rs:44:5 + --> $DIR/type-checking-test-4.rs:42:5 | LL | fn test_wrong6<'a>(x: &dyn Foo<'a>) -> Option<&'static u32> { | -- lifetime `'a` defined here diff --git a/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.current.stderr b/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.current.stderr deleted file mode 100644 index 9f0993d65a7..00000000000 --- a/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.current.stderr +++ /dev/null @@ -1,13 +0,0 @@ -error[E0658]: cannot cast `dyn A` to `dyn B`, trait upcasting coercion is experimental - --> $DIR/upcast-through-struct-tail.rs:10:5 - | -LL | x - | ^ - | - = note: see issue #65991 <https://github.com/rust-lang/rust/issues/65991> for more information - = help: add `#![feature(trait_upcasting)]` to the crate attributes to enable - = note: required when coercing `Box<Wrapper<(dyn A + 'a)>>` into `Box<Wrapper<(dyn B + 'a)>>` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.next.stderr b/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.next.stderr deleted file mode 100644 index 9f0993d65a7..00000000000 --- a/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.next.stderr +++ /dev/null @@ -1,13 +0,0 @@ -error[E0658]: cannot cast `dyn A` to `dyn B`, trait upcasting coercion is experimental - --> $DIR/upcast-through-struct-tail.rs:10:5 - | -LL | x - | ^ - | - = note: see issue #65991 <https://github.com/rust-lang/rust/issues/65991> for more information - = help: add `#![feature(trait_upcasting)]` to the crate attributes to enable - = note: required when coercing `Box<Wrapper<(dyn A + 'a)>>` into `Box<Wrapper<(dyn B + 'a)>>` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.rs b/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.rs index 42495f45f8a..9981d436062 100644 --- a/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.rs +++ b/tests/ui/traits/trait-upcasting/upcast-through-struct-tail.rs @@ -1,3 +1,4 @@ +// check-pass // revisions: current next //[next] compile-flags: -Ztrait-solver=next @@ -8,7 +9,6 @@ trait B {} fn test<'a>(x: Box<Wrapper<dyn A + 'a>>) -> Box<Wrapper<dyn B + 'a>> { x - //~^ ERROR cannot cast `dyn A` to `dyn B`, trait upcasting coercion is experimental } fn main() {} |