tests/compiler/dart2js_native/native_method_rename3_frog_test.dart

// Copyright (c) 2011, 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.

// Test the feature where the native string declares the native method's name.
// #3. The name does not get

import 'native_testing.dart';

@Native("A")
class A {
  @JSName('fooA')
  int foo() native;
}

@Native("B")
class B extends A {
  @JSName('fooB')
  int foo() native;
  int fooA() => 333;
}

class Decoy {
  int fooA() => 666;
  int fooB() => 999;
}

makeA() native;
makeB() native;

void setup() {
  JS('', r"""
(function(){
  // This code is inside 'setup' and so not accessible from the global scope.
  function inherits(child, parent) {
    if (child.prototype.__proto__) {
      child.prototype.__proto__ = parent.prototype;
    } else {
      function tmp() {};
      tmp.prototype = parent.prototype;
      child.prototype = new tmp();
      child.prototype.constructor = child;
    }
  }
  function A(){}
  A.prototype.fooA = function(){return 100;};
  function B(){}
  inherits(B, A);
  B.prototype.fooB = function(){return 200;};

  makeA = function(){return new A()};
  makeB = function(){return new B()};

  self.nativeConstructor(A);
  self.nativeConstructor(B);
})()""");
}

testDynamic() {
  var a = confuse(makeA());
  var b = confuse(makeB());
  var d = confuse(new Decoy());

  Expect.equals(100, a.foo());
  Expect.equals(200, b.foo());
  Expect.equals(666, d.fooA());
  Expect.equals(999, d.fooB());

  expectNoSuchMethod(() {
    a.fooA();
  }, 'fooA should be invisible on A');
  Expect.equals(333, b.fooA());

  expectNoSuchMethod(() {
    a.fooB();
  }, 'fooB should be absent on A');
  expectNoSuchMethod(() {
    b.fooB();
  }, 'fooA should be invisible on B');
}

testTyped() {
  A a = makeA();
  B b = makeB();
  Decoy d = new Decoy();

  Expect.equals(100, a.foo());
  Expect.equals(200, b.foo());
  Expect.equals(666, d.fooA());
  Expect.equals(999, d.fooB());
}

main() {
  nativeTesting();
  setup();

  testDynamic();
  testTyped();
}

expectNoSuchMethod(action, note) {
  bool caught = false;
  try {
    action();
  } on NoSuchMethodError catch (ex) {
    caught = true;
    Expect.isTrue(ex is NoSuchMethodError, note);
  }
  Expect.isTrue(caught, note);
}