StructBase<S extends StructBase<S, K, V>, K extends Field<V>, V> mixin

StructBase — abstract base user subtype

TypedStruct holds data and List keys TypeObject provide toMap() Handle User Subtype + Serailizable mixin mixin for convience, applies to further abstract classes

Unlike StructData (which wraps an external object), subclasses of StructBase hold data directly in their own fields. Field.getIn / Field.setIn receive this as the host object.

StructBase provides opt-in value equality via keys. When K also extends Enum, the existing EnumMapByName extension on Map<Enum, V> gives serialization for free — just call toMap().toJson().

StructureBase cannot implement Structure (an extension type). Instead, data returns Structure<K, V>(this) — a zero-cost wrapper around this — so that all keyed access delegates through the same Field-based dispatch. This also allows inner to be passed to APIs that accept Structure<K, V>.

Mixin applications

Properties

data → StructData<K, V>
Proxy to allow the same keys Object as Structure<K, V> data passed to Keys
no setter
fields → Iterable<StructField<K, V>>
no setter
hashCode → int
The hash code for this object.
no setterinherited
keys → List<K>
a method from its TypeObject The ordered list of keys — defines the schema. Typically returns MyField.values for an enum-based key type.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
values → Iterable<V>
no setter

Methods

field(K key) → StructField<K, V>
fieldAs<R>(Field<R> key) → StructField<Field<R>, R>
fieldOrNull(K key) → V?
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toMap() → Map<K, V>
Snapshot as an IndexMap. If K extends Enum, call .toJson() on the result to serialise via EnumMapByName.
toString() → String
A string representation of this object.
inherited
trySetField(K key, V value) → bool

Operators

operator ==(Object other) → bool
The equality operator.
inherited
operator [](covariant K key) → V
operator []=(covariant K key, V value) → void