35 lines
1.2 KiB
Dart
35 lines
1.2 KiB
Dart
|
import 'package:angel_container/angel_container.dart';
|
||
|
|
|
||
|
|
/// A [Reflector] implementation that throws exceptions on all attempts
|
||
|
|
/// to perform reflection.
|
||
|
|
///
|
||
|
|
/// Use this in contexts where you know you won't need any reflective capabilities.
|
||
|
|
class ThrowingReflector extends Reflector {
|
||
|
|
/// The error message to give the end user when an [UnsupportedError] is thrown.
|
||
|
|
final String errorMessage;
|
||
|
|
|
||
|
|
static const String defaultErrorMessage =
|
||
|
|
'You attempted to perform a reflective action, but you are using `ThrowingReflector`, '
|
||
|
|
'a class which disables reflection. Consider using the `MirrorsReflector` '
|
||
|
|
'class if you need reflection.';
|
||
|
|
|
||
|
|
const ThrowingReflector({this.errorMessage = defaultErrorMessage});
|
||
|
|
|
||
|
|
@override
|
||
|
|
String getName(Symbol symbol) => const EmptyReflector().getName(symbol);
|
||
|
|
|
||
|
|
UnsupportedError _error() => UnsupportedError(errorMessage);
|
||
|
|
|
||
|
|
@override
|
||
|
|
ReflectedClass reflectClass(Type clazz) => throw _error();
|
||
|
|
|
||
|
|
@override
|
||
|
|
ReflectedInstance reflectInstance(Object object) => throw _error();
|
||
|
|
|
||
|
|
@override
|
||
|
|
ReflectedType reflectType(Type type) => throw _error();
|
||
|
|
|
||
|
|
@override
|
||
|
|
ReflectedFunction reflectFunction(Function function) => throw _error();
|
||
|
|
}
|