tests/web/native/native_field_invocation6_test.dart

// Copyright (c) 2014, 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.

import "native_testing.dart";

makeA() native;
nativeFirst(x, y) native;

void setup() {
  JS('', r"""
(function(){
  self.nativeFirst = function(x, y) { return x; };

  function A() {}
  self.makeA = function() { return new A() };
  self.nativeConstructor(A);
})()""");
  applyTestExtensions(['A']);
}

@Native("A")
class A {
  var _foo;

  get foo => _foo;

  init() {
    _foo = () => 42;
  }
}

class B {
  var foo = 499;
}

class C {
  foo() => 499;
}

class D {
  var foo = () => 499;
}

main() {
  nativeTesting();
  setup();
  var a = makeA();
  a.init();
  var b = new B();
  var c = new C();
  var d = new D();
  a = nativeFirst(a, b);
  a = nativeFirst(a, c);
  a = nativeFirst(a, d);
  // The variable a is still an instance of class A, but dart2js can't infer
  // that anymore.
  Expect.equals(42, a.foo());
}