blob: 0e15829e4e878ba5213cc1bfa8464f6b999ce3de [file] [log] [blame]
// 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;
}
class C2 implements Function {
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);
C2 c2 = new C2();
// Implicitly invokes c2.call(1)
Expect.equals(c2(1), 2);
dynamic d2 = c2;
// Implicitly invokes d2.call(1)
Expect.equals(d2(1), 2);
// Cannot invoke with the wrong signature.
c2();
//^^
// [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
// [cfe] Too few positional arguments: 1 required, 0 given.
c2(3, 4);
// ^
// [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
//^^^^^^
// [cfe] Too many positional arguments: 1 allowed, but 2 found.
}