// Copyright (c) 2018, 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.

// Dart test program to test arithmetic operations.

import "package:expect/expect.dart";

class C1 {
  int call(int i) => 2 * i;
}

main() {
  C1 c1 = new C1();
  // Implicitly invokes c1.call(1)
  Expect.equals(c1(1), 2);
  dynamic d1 = c1;
  // Implicitly invokes d1.call(1)
  Expect.equals(d1(1), 2);
  // Cannot invoke with the wrong signature.
  c1();
  //^
  // [cfe] Too few positional arguments: 1 required, 0 given.
  // ^
  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
  c1(3, 4);
  //^
  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
  //    ^
  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
}