Language/12_Expressions/09_Function_Expressions_A03_t03.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.
 */
/**
 * @assertion The static type of a function literal of the form
 * (T1 a1, ..., Tn an, [Tn+1  xn+1 = d1, ... ,Tn+k xn+k = dk]) => e is
 * (T1, ..., Tn, [Tn+1 xn+1, .., Tn+k xn+k]) -> T0, where T0 is the static type of e.
 * In any case where Ti, 1 <= i <= n, is not specified,
 * it is considered to have been specified as dynamic.
 * @description Checks that a static type warning occurs when assigning a function literal
 * of the form (T1 a1, ..., Tn an, [Tn+1  xn+1 = d1, ... ,Tn+k xn+k = dk]) => e
 * where the type of e is int to a variable of a function type with incompatible parameters.
 * @static-warning
 * @author msyabro
 * @reviewer rodionov
 */

import "../../Utils/dynamic_check.dart";

typedef int foo(int x, String y, [double a, double b]);

main() {
  foo f;
  checkTypeError( () {
    f = (int x, int y, [double a, double b]) => 1; /// static type warning
  });
}