reflection_factory 2.4.3 reflection_factory: ^2.4.3 copied to clipboard
Allows Dart reflection with an easy approach, even for third-party classes, using code generation portable for all Dart platforms.
example/reflection_factory_example.dart
import 'package:reflection_factory/reflection_factory.dart';
// Add a reference to the code generated by:
// $> dart run build_runner build
part 'reflection_factory_example.reflection.g.dart';
// Indicates that reflection for class `User` will be generated/enabled:
@EnableReflection()
class User {
String? email;
String pass;
User(this.email, this.pass);
User.empty() : this(null, '');
bool get hasEmail => email != null;
bool checkPassword(String pass) {
return this.pass == pass;
}
}
void main() {
var user = User('joe@mail.com', '123');
// The generated reflection:
var userReflection = user.reflection;
var fieldEmail = userReflection.field('email')!;
print('email: ${fieldEmail.get()}');
var methodCheckPassword = userReflection.method('checkPassword')!;
var passOk1 = methodCheckPassword.invoke(['wrong']); // false
print('pass("wrong"): $passOk1');
var passOk2 = methodCheckPassword.invoke(['123']); // true
print('pass("123"): $passOk2');
// Using the generated `toJson` extension method:
print('User JSON:');
print(user.toJson());
// Using the generated `toJsonEncoded` extension method:
print('User JSON encoded:');
print(user.toJsonEncoded());
// Accessing reflection through class:
var userReflection2 = User$reflection();
// Creating an `User` instance from the default or empty constructor:
var user2 = userReflection2.createInstance()!;
user2.email = 'smith@mail.com';
user2.pass = 'abc';
print('User 2 JSON:');
print(user2.toJson());
}
// ------------------------
// OUTPUT:
// ------------------------
// email: joe@mail.com
// pass("wrong"): false
// pass("123"): true
// User JSON:
// {email: joe@mail.com, hasEmail: true, pass: 123}
// User JSON encoded:
// {"email":"joe@mail.com","hasEmail":true,"pass":"123"}
// User 2 JSON:
// {email: smith@mail.com, hasEmail: true, pass: abc}