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Support layout of RPIT

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This commit is contained in:
hkalbasi 2023-02-06 20:50:25 +03:30
parent 10891ef090
commit 443bc7f193
8 changed files with 214 additions and 65 deletions
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19
crates/hir-ty/src/layout.rs
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@ -225,10 +225,21 @@ pub fn layout_of_ty(db: &dyn HirDatabase, ty: &Ty, krate: CrateId) -> Result<Lay
ptr.valid_range_mut().start = 1;
Layout::scalar(dl, ptr)
}
TyKind::Closure(_, _)
| TyKind::OpaqueType(_, _)
| TyKind::Generator(_, _)
| TyKind::GeneratorWitness(_, _) => return Err(LayoutError::NotImplemented),
TyKind::OpaqueType(opaque_ty_id, _) => {
let impl_trait_id = db.lookup_intern_impl_trait_id((*opaque_ty_id).into());
match impl_trait_id {
crate::ImplTraitId::ReturnTypeImplTrait(func, idx) => {
let infer = db.infer(func.into());
layout_of_ty(db, &infer.type_of_rpit[idx], krate)?
}
crate::ImplTraitId::AsyncBlockTypeImplTrait(_, _) => {
return Err(LayoutError::NotImplemented)
}
}
}
TyKind::Closure(_, _) | TyKind::Generator(_, _) | TyKind::GeneratorWitness(_, _) => {
return Err(LayoutError::NotImplemented)
}
TyKind::AssociatedType(_, _)
| TyKind::Error
| TyKind::Alias(_)