https://gcc.gnu.org/g:eb7dffae860b30215382f2f58a9f22932122ce96
commit eb7dffae860b30215382f2f58a9f22932122ce96
Author: Jakub Dupak <d...@jakubdupak.com>
Date: Mon Dec 11 23:11:34 2023 +0100
TyTy: SubstitutionRef cast specialization
Allows skipping parent check when casting.
gcc/rust/ChangeLog:
* typecheck/rust-tyty.h (BaseType::is): Cast API.
(SubstitutionRef>): Cast API.
(BaseType::as): Cast API.
(BaseType::try_as): Cast API.
Signed-off-by: Jakub Dupak <d...@jakubdupak.com>
Diff:
---
gcc/rust/typecheck/rust-tyty.h | 78 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 78 insertions(+)
diff --git a/gcc/rust/typecheck/rust-tyty.h b/gcc/rust/typecheck/rust-tyty.h
index dcf46300dfc2..c9eb12cda9e9 100644
--- a/gcc/rust/typecheck/rust-tyty.h
+++ b/gcc/rust/typecheck/rust-tyty.h
@@ -1575,6 +1575,84 @@ BaseType::is<const CallableTypeInterface> () const
return this->is<CallableTypeInterface> ();
}
+template <>
+WARN_UNUSED_RESULT inline bool
+BaseType::is<SubstitutionRef> () const
+{
+ auto kind = this->get_kind ();
+ return kind == FNPTR || kind == FNDEF || kind == CLOSURE || kind == ADT
+ || kind == PROJECTION;
+}
+
+template <>
+WARN_UNUSED_RESULT inline bool
+BaseType::is<const SubstitutionRef> () const
+{
+ return this->is<SubstitutionRef> ();
+}
+
+template <>
+WARN_UNUSED_RESULT inline SubstitutionRef *
+BaseType::as<SubstitutionRef> ()
+{
+ auto kind = this->get_kind ();
+ switch (kind)
+ {
+ case FNDEF:
+ return static_cast<FnType *> (this);
+ case CLOSURE:
+ return static_cast<ClosureType *> (this);
+ case ADT:
+ return static_cast<ADTType *> (this);
+ case PROJECTION:
+ return static_cast<ProjectionType *> (this);
+ default:
+ rust_unreachable ();
+ }
+}
+
+template <>
+WARN_UNUSED_RESULT inline const SubstitutionRef *
+BaseType::as<const SubstitutionRef> () const
+{
+ auto kind = this->get_kind ();
+ switch (kind)
+ {
+ case FNDEF:
+ return static_cast<const FnType *> (this);
+ case CLOSURE:
+ return static_cast<const ClosureType *> (this);
+ case ADT:
+ return static_cast<const ADTType *> (this);
+ case PROJECTION:
+ return static_cast<const ProjectionType *> (this);
+ default:
+ rust_unreachable ();
+ }
+}
+
+template <>
+WARN_UNUSED_RESULT inline SubstitutionRef *
+BaseType::try_as<SubstitutionRef> ()
+{
+ if (this->is<SubstitutionRef> ())
+ {
+ return this->as<SubstitutionRef> ();
+ }
+ return nullptr;
+}
+
+template <>
+WARN_UNUSED_RESULT inline const SubstitutionRef *
+BaseType::try_as<const SubstitutionRef> () const
+{
+ if (this->is<const SubstitutionRef> ())
+ {
+ return this->as<const SubstitutionRef> ();
+ }
+ return nullptr;
+}
+
} // namespace TyTy
} // namespace Rust
