MapObject class

A configurable mapping system that can transform objects based on their type. Supports chaining through parent mappings and type-specific transformations.

This class is designed to be immutable, meaning once created, the mapping rules cannot be changed. It allows for a flexible and extensible way to handle different types of objects in a consistent manner.

Key Features:

• Type-Specific Mapping: Define how different types should be transformed.
• Parent Mapping: Chain mappings together for more complex transformations.
• Immutability: Once created, the mapping rules cannot be modified.
• Null Safety: Handles null inputs gracefully.
• Type Preservation: Input and output types are preserved.

Constructors

MapObject.new({required Type type, required MapFunction function, MapObject? parent})

A configurable value transformer that applies type-specific mapping rules to objects.

MapObject.from(MapObject map, {MapObject? parent})

Creates a MapObject from a map, preserving parent chain if provided

MapObject.fromEntries(Iterable<MapEntry<Type, MapFunction>> entries, {MapObject? parent})

Creates a MapObject from multiple mapping entries

Properties

hashCode → int

The hash code for this object.

no setter, inherited

map → Map<Type, MapFunction>

Immutable mapping rules by type

final

parent → MapObject?

Optional parent mapper for chaining

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

call<T>(T object, {Cell? cell, dynamic user}) → T

Applies the mapping to an object, walking up the parent chain if needed

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

operator [](Type type) → MapFunction?

Gets the mapping function for a specific type