tests/compiler/dart2js/map_tracer_const_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 'package:expect/expect.dart';
import "package:async_helper/async_helper.dart";

import 'compiler_helper.dart';
import 'type_mask_test_helper.dart';

const String TEST = '''
int closure(int x) {
  return x;
}

class A {
  static const DEFAULT = const {'fun' : closure};

  final map;

  A([maparg]) : map = maparg == null ? DEFAULT : maparg;
}

main() {
  var a = new A();
  a.map['fun'](3.3);
  print(closure(22));
}
''';

void main() {
  Uri uri = new Uri(scheme: 'source');
  var compiler = compilerFor(TEST, uri,
      expectedErrors: 0, expectedWarnings: 0);
  compiler.stopAfterTypeInference = true;
  asyncTest(() => compiler.runCompiler(uri).then((_) {
    var typesTask = compiler.typesTask;
    var typesInferrer = typesTask.typesInferrer;
    var element = findElement(compiler, 'closure');
    var mask = typesInferrer.getReturnTypeOfElement(element);
    Expect.equals(typesTask.numType, simplify(mask, compiler));
  }));
}