diff options
Diffstat (limited to 'src/mir/cleanup.cpp')
| -rw-r--r-- | src/mir/cleanup.cpp | 40 |
1 files changed, 1 insertions, 39 deletions
diff --git a/src/mir/cleanup.cpp b/src/mir/cleanup.cpp index f790c78a..3dc7f418 100644 --- a/src/mir/cleanup.cpp +++ b/src/mir/cleanup.cpp @@ -959,45 +959,7 @@ void MIR_Cleanup(const StaticTraitResolve& resolve, const ::HIR::ItemPath& path, ) ) - if( se.src.is_Borrow() && se.src.as_Borrow().val.is_Field() ) - { - auto& e = se.src.as_Borrow(); - // TODO: If borrowing a !Sized value via a field access, create the DST - ::HIR::TypeRef tmp; - const auto& src_ty = state.get_lvalue_type(tmp, e.val); - - if( !resolve.type_is_sized(sp, src_ty) && !src_ty.m_data.is_Generic() ) - { - auto ty_unit_ptr = ::HIR::TypeRef::new_borrow( e.type, ::HIR::TypeRef::new_unit() ); - if( se.dst.is_Temporary() && state.get_lvalue_type(tmp, se.dst) == ty_unit_ptr ) - { - // Assigning fat pointer to a &() temporary, only happens if this has already happend - } - else - { - // Unwrap field accesses, next lvalue should be a deref - const ::MIR::LValue* lv = &e.val; - while( lv->is_Field() ) - lv = &*lv->as_Field().val; - MIR_ASSERT(state, lv->is_Deref(), "Access of !Sized field not via a deref"); - - const auto& dst_val_lval = *lv; - - auto meta_rval = ::MIR::RValue::make_DstMeta({ dst_val_lval.clone() }); - // TODO: How can the thin pointer to the field be obtained without tripping this twice? - auto ptr_rval = mv$( se.src ); - - // TODO: Get the metadata type. - auto meta_ty = ::HIR::TypeRef( ::HIR::CoreType::Usize ); - auto meta_lval = mutator.in_temporary( mv$(meta_ty), mv$(meta_rval) ); - - // HACK: Store the pointer as &() - auto ptr_lval = mutator.in_temporary( mv$(ty_unit_ptr), mv$(ptr_rval) ); - se.src = ::MIR::RValue::make_MakeDst({ mv$(ptr_lval), mv$(meta_lval) }); - } - } - } - + // Fix up RValue::Cast into coercions if( se.src.is_Cast() ) { auto& e = se.src.as_Cast(); |