Struct EnumSingleFieldData 

pub(crate) struct EnumSingleFieldData {
    pub(crate) col_name: Ident,
    pub(crate) binding: Ident,
    pub(crate) rust_name: Ident,
    pub(crate) ty: Type,
    pub(crate) needs_into_list: bool,
    pub(crate) is_factor: bool,
}

Data for EnumResolvedField::Single.

Fields

col_name: Ident

Column name in the schema.

binding: Ident

Binding name used in destructure pattern.

rust_name: Ident

Original Rust field name (for named variants).

ty: Type

Column type stored in the companion Vec.

For most fields this is the raw Rust type. When needs_into_list is true (struct-typed fields with #[dataframe(as_list)]), this is ::miniextendr_api::list::List — the actual inner type is erased at the storage level and each row value is converted via .into_list().

needs_into_list: bool

Whether the field’s value must be converted via .into_list() before being pushed into the companion Vec<Option<List>>.

Set to true only for struct-typed fields (FieldTypeKind::Struct) that carry #[dataframe(as_list)]. The companion struct field type is Vec<Option<::miniextendr_api::list::List>> in this case.

is_factor: bool

Whether the field should be emitted as an R factor column.

Set to true for fields annotated with #[dataframe(as_factor)]. The companion struct field type is Vec<Option<T>> (unchanged), but into_data_frame wraps it in FactorOptionVec<T> to use the UnitEnumFactor-based blanket IntoR impl.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 424 bytes