Robert Nystrom
ba40d9bece
Change-Id: I73edeeaf4934899b71d6335dcb4b4b54dce46bae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426340 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Nate Biggs <natebiggs@google.com> Commit-Queue: Nate Biggs <natebiggs@google.com>
48 lines
1.1 KiB
Dart
48 lines
1.1 KiB
Dart
// Copyright (c) 2024, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
// Tests that type checks work properly for Legacy JS Objects across generic
|
|
// boundaries.
|
|
|
|
import 'dart:html';
|
|
import "dart:js" as js;
|
|
import 'dart:js_interop';
|
|
import 'dart:js_interop_unsafe';
|
|
|
|
import 'package:js/js.dart' as pkgJs;
|
|
|
|
class TestGenericClass<X> {
|
|
X x;
|
|
TestGenericClass(this.x);
|
|
|
|
directCast(p) {
|
|
return p as PackageJSClass<String>;
|
|
}
|
|
|
|
typeArgCast(p) {
|
|
return p as X;
|
|
}
|
|
}
|
|
|
|
@pkgJs.JS()
|
|
class PackageJSClass<T> {
|
|
external factory PackageJSClass(T x);
|
|
}
|
|
|
|
void main() {
|
|
js.context.callMethod("eval", [
|
|
"""
|
|
window.PackageJSClass = function PackageJSClass(x) {
|
|
this.x = x;
|
|
};
|
|
""",
|
|
]);
|
|
|
|
var instance = TestGenericClass<PackageJSClass<JSString>>(
|
|
PackageJSClass("Hello".toJS),
|
|
);
|
|
print(instance.directCast(PackageJSClass("Hello".toJS)));
|
|
print(instance.typeArgCast(PackageJSClass("Hello".toJS)));
|
|
}
|