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-rw-r--r--gcc/rust/typecheck/rust-tyty-coercion.h22
-rw-r--r--gcc/rust/typecheck/rust-tyty-rules.h22
2 files changed, 44 insertions, 0 deletions
diff --git a/gcc/rust/typecheck/rust-tyty-coercion.h b/gcc/rust/typecheck/rust-tyty-coercion.h
index 34267b3..ed16365 100644
--- a/gcc/rust/typecheck/rust-tyty-coercion.h
+++ b/gcc/rust/typecheck/rust-tyty-coercion.h
@@ -1130,6 +1130,28 @@ public:
}
}
+ // generic args for the unit-struct case
+ if (type.is_unit () && base->is_unit ())
+ {
+ rust_assert (type.get_num_substitutions ()
+ == base->get_num_substitutions ());
+
+ for (size_t i = 0; i < type.get_num_substitutions (); i++)
+ {
+ auto &a = base->get_substs ().at (i);
+ auto &b = type.get_substs ().at (i);
+
+ auto pa = a.get_param_ty ();
+ auto pb = b.get_param_ty ();
+
+ auto res = pa->unify (pb);
+ if (res->get_kind () == TyTy::TypeKind::ERROR)
+ {
+ return;
+ }
+ }
+ }
+
resolved = type.clone ();
}
diff --git a/gcc/rust/typecheck/rust-tyty-rules.h b/gcc/rust/typecheck/rust-tyty-rules.h
index ad2d4b7..77d912a 100644
--- a/gcc/rust/typecheck/rust-tyty-rules.h
+++ b/gcc/rust/typecheck/rust-tyty-rules.h
@@ -1128,6 +1128,28 @@ public:
}
}
+ // generic args for the unit-struct case
+ if (type.is_unit () && base->is_unit ())
+ {
+ rust_assert (type.get_num_substitutions ()
+ == base->get_num_substitutions ());
+
+ for (size_t i = 0; i < type.get_num_substitutions (); i++)
+ {
+ auto &a = base->get_substs ().at (i);
+ auto &b = type.get_substs ().at (i);
+
+ auto pa = a.get_param_ty ();
+ auto pb = b.get_param_ty ();
+
+ auto res = pa->unify (pb);
+ if (res->get_kind () == TyTy::TypeKind::ERROR)
+ {
+ return;
+ }
+ }
+ }
+
resolved = type.clone ();
}