GenericConstructorConfig class

Configuration for a templated RC-2 generic constructor factory.

Reifies a script's explicit type argument (GlobalKey<NavigatorState>(), ValueKey<String>('k')) into a concrete native generic, which the interpreter's type-erased constructor boundary otherwise can't do (R3). The generator emits a D4.registerGenericConstructor(className, '', …) whose body is a switch (typeName) over typeArgVariants; the body shape is selected by kind.

Dormant by default (BridgeConfig.genericConstructors is empty), so until a buildkit.yaml declares one the generated registerGenericConstructors() is byte-identical.

YAML form:

d4rtgen:
  genericConstructors:
    - className: GlobalKey
      kind: namedPassthrough
      namedArgs:
        - name: debugLabel
          type: String
      typeArgVariants: [NavigatorState, FormState, ScaffoldState]
    - className: ValueNotifier
      kind: nullableValue
      includeDynamicArm: true
      typeArgVariants: [String, int, double, bool]

Constructors

GenericConstructorConfig({required String className, required GenericConstructorKind kind, List<String> typeArgVariants = const [], List<GenericCtorNamedArg> namedArgs = const [], bool includeDynamicArm = false})
const
GenericConstructorConfig.fromJson(Map<String, dynamic> json)
factory
GenericConstructorConfig.fromYaml(Object value)
factory

Properties

className → String
The bridged class whose generic constructor is reified (e.g. GlobalKey).
final
hashCode → int
The hash code for this object.
no setterinherited
includeDynamicArm → bool
Whether to prepend the 'dynamic' || 'Object' || 'Object?' arm mapping to Class<dynamic>(value). Used only by GenericConstructorKind.nullableValue (true for ValueNotifier, false for ValueKey).
final
kind → GenericConstructorKind
Which body shape to emit (see GenericConstructorKind).
final
namedArgs → List<GenericCtorNamedArg>
The named arguments forwarded to every arm. Used only by GenericConstructorKind.namedPassthrough; empty for nullableValue.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
typeArgVariants → List<String>
The allow-list of concrete type-arg names, in switch order. For GenericConstructorKind.namedPassthrough these are the reified subtypes (NavigatorState); for GenericConstructorKind.nullableValue the value types (String, int).
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toJson() → Map<String, dynamic>
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited