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always make define_opaque_types explicit

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This commit is contained in:
lcnr
2023-03-15 14:00:15 +01:00
parent e84e5ff04a
commit d2b7604db9
33 changed files with 308 additions and 225 deletions
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11
compiler/rustc_hir_analysis/src/coherence/builtin.rs
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@@ -9,8 +9,8 @@ use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_hir::lang_items::LangItem;
use rustc_hir::ItemKind;
use rustc_infer::infer::outlives::env::OutlivesEnvironment;
use rustc_infer::infer::TyCtxtInferExt;
use rustc_infer::infer::{self, RegionResolutionError};
use rustc_infer::infer::{DefineOpaqueTypes, TyCtxtInferExt};
use rustc_middle::ty::adjustment::CoerceUnsizedInfo;
use rustc_middle::ty::{self, suggest_constraining_type_params, Ty, TyCtxt, TypeVisitableExt};
use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt;
@@ -235,7 +235,8 @@ fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDef
use rustc_type_ir::sty::TyKind::*;
match (source.kind(), target.kind()) {
(&Ref(r_a, _, mutbl_a), Ref(r_b, _, mutbl_b))
if infcx.at(&cause, param_env).eq(r_a, *r_b).is_ok() && mutbl_a == *mutbl_b => {}
if infcx.at(&cause, param_env).eq(DefineOpaqueTypes::No, r_a, *r_b).is_ok()
&& mutbl_a == *mutbl_b => {}
(&RawPtr(tm_a), &RawPtr(tm_b)) if tm_a.mutbl == tm_b.mutbl => (),
(&Adt(def_a, substs_a), &Adt(def_b, substs_b))
if def_a.is_struct() && def_b.is_struct() =>
@@ -278,7 +279,9 @@ fn visit_implementation_of_dispatch_from_dyn(tcx: TyCtxt<'_>, impl_did: LocalDef
}
}
if let Ok(ok) = infcx.at(&cause, param_env).eq(ty_a, ty_b) {
if let Ok(ok) =
infcx.at(&cause, param_env).eq(DefineOpaqueTypes::No, ty_a, ty_b)
{
if ok.obligations.is_empty() {
create_err(
"the trait `DispatchFromDyn` may only be implemented \
@@ -504,7 +507,7 @@ pub fn coerce_unsized_info<'tcx>(tcx: TyCtxt<'tcx>, impl_did: DefId) -> CoerceUn
// we may have to evaluate constraint
// expressions in the course of execution.)
// See e.g., #41936.
if let Ok(ok) = infcx.at(&cause, param_env).eq(a, b) {
if let Ok(ok) = infcx.at(&cause, param_env).eq(DefineOpaqueTypes::No, a, b) {
if ok.obligations.is_empty() {
return None;
}