JsonDecodingContext class

JSON deserializer.

Example

import 'package:kind/kind.dart';

void main() {
  final json = {
    'message': 'Hello world!',
  };

  // Decode JSON
  final context = JsonDecodingContext();
  final greeting = context.decode(
    json,
    kind: Greeting.kind,
  );
}


class Greeting {
  static final EntityKind<Greeting> kind = EntityKind<Greeting>(
    name: 'Example',
    define: (c) {
      c.requiredString(
        id: 1,
        name: 'message', // <-- JSON field name
        getter: (t) => t.message,
        setter: (t,v) => t.message = v;
      );
      c.constructor = () => Greeting();
    },
  );

  String message = '';
}
Inheritance

Constructors

JsonDecodingContext({JsonSettings jsonSettings = const JsonSettings(), KindLibrary? kindLibrary, bool reactive = true, Namer? namer})

Properties

errorPrimaryLabel → String
Primary label for errors constructed by newGraphNodeError.
no setteroverride
hashCode → int
The hash code for this object.
no setterinherited
jsonSettings → JsonSettings
JSON serialization settings.
final
kindLibrary → KindLibrary?
Optional library of available kinds.
finalinherited
namer → Namer?
Translates names of kinds and properties. Default is null.
finalinherited
pathEdges → List<Object?>
Path from root node to the current node.
finalinherited
pathNodes → List<Object?>
finalinherited
reactive → bool
Whether to construct reactive objects.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

decode<T>(Object? json, {required Kind<T> kind}) → T
Deserializes an object using the given Kind.
override
enter(Object? value) → void
inherited
enterField(String name, Object? value) → void
Enters a field.
inherited
enterIndex(int index, Object? value) → void
Enters an index.
inherited
enterMapEntry(String key, Object? value) → void
Enters a map entry.
inherited
leave() → void
Leaves the the top node.
inherited
newGraphNodeError({required Object? value, required String reason}) → GraphNodeError
Constructs a new instance of GraphNodeError that describes the location in the graph.
inherited
newUnsupportedTypeError(Object? value) → GraphNodeError
Returns a new error.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
pathContainsValue(Object? value) → bool
Returns true if pathNodes has an identical value.
inherited
toString() → String
A string representation of this object.
inherited

Operators

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