Struct EnumMapFieldData 

pub(crate) struct EnumMapFieldData {
    pub(crate) base_name: String,
    pub(crate) binding: Ident,
    pub(crate) rust_name: Ident,
    pub(crate) key_ty: Type,
    pub(crate) val_ty: Type,
    pub(crate) map_ty: Type,
}

Data for EnumResolvedField::Map.

A HashMap<K,V> or BTreeMap<K,V> field expands to two parallel list-columns: <base_name>_keys: Vec<Option<Vec<K>>> and <base_name>_values: Vec<Option<Vec<V>>>. Absent-variant rows get None in both columns. Key order follows the map’s own iteration order: BTreeMap yields sorted keys, HashMap yields non-deterministic order. Both are produced via into_iter().unzip() which guarantees pairwise alignment.

Fields

base_name: String

Base column name (field name or rename override).

binding: Ident

Binding name used in destructure pattern.

rust_name: Ident

Original Rust field name.

key_ty: Type

Key type K.

val_ty: Type

Value type V.

map_ty: Type

Full original field type (HashMap<K, V> / BTreeMap<K, V>). The reader regroups the _keys/_values list-columns and collect()s back into this exact map type — both HashMap and BTreeMap implement FromIterator<(K, V)>.

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: 1048 bytes