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* [gcc/devel/rust/master] Add missing bound to impl-type Self
@ 2022-06-08 11:47 Thomas Schwinge
0 siblings, 0 replies; only message in thread
From: Thomas Schwinge @ 2022-06-08 11:47 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:41d0e2fa96183425eb23d8c5669e3a216d0cea66
commit 41d0e2fa96183425eb23d8c5669e3a216d0cea66
Author: Philip Herron <philip.herron@embecosm.com>
Date: Thu Nov 4 13:34:45 2021 +0000
Add missing bound to impl-type Self
Diff:
---
gcc/rust/typecheck/rust-hir-type-check-item.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/gcc/rust/typecheck/rust-hir-type-check-item.h b/gcc/rust/typecheck/rust-hir-type-check-item.h
index fe70035df06..706f649340f 100644
--- a/gcc/rust/typecheck/rust-hir-type-check-item.h
+++ b/gcc/rust/typecheck/rust-hir-type-check-item.h
@@ -70,12 +70,34 @@ public:
}
}
+ std::vector<TyTy::TypeBoundPredicate> specified_bounds;
TraitReference *trait_reference = &TraitReference::error_node ();
if (impl_block.has_trait_ref ())
{
std::unique_ptr<HIR::TypePath> &ref = impl_block.get_trait_ref ();
trait_reference = TraitResolver::Resolve (*ref.get ());
rust_assert (!trait_reference->is_error ());
+
+ // setup the bound
+ TyTy::TypeBoundPredicate predicate (
+ trait_reference->get_mappings ().get_defid (), ref->get_locus ());
+ auto &final_seg = ref->get_final_segment ();
+ if (final_seg->is_generic_segment ())
+ {
+ auto final_generic_seg
+ = static_cast<HIR::TypePathSegmentGeneric *> (final_seg.get ());
+ if (final_generic_seg->has_generic_args ())
+ {
+ HIR::GenericArgs &generic_args
+ = final_generic_seg->get_generic_args ();
+
+ // this is applying generic arguments to a trait
+ // reference
+ predicate.apply_generic_arguments (&generic_args);
+ }
+ }
+
+ specified_bounds.push_back (std::move (predicate));
}
TyTy::BaseType *self = nullptr;
@@ -86,6 +108,8 @@ public:
"failed to resolve Self for ImplBlock");
return;
}
+ // inherit the bounds
+ self->inherit_bounds (specified_bounds);
bool is_trait_impl_block = !trait_reference->is_error ();
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