Language/Expressions/Postfix_Expressions/static_type_t09.dart

// Copyright (c) 2015, 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 Execution of a postfix expression of the form e1?.v++ is
 * equivalent to executing ((x) => x == null? null: x.v++)(e1) unless e1 is a
 * type literal, in which case it is equivalent to e1.v++ .
 * The static type of such an expression is the static type of e1.v.
 * @description Checks that static type of e1?.v++ is static type of e1.v
 * static-clean
 * @author sgrekhov@unipro.ru
 */
class C {
  int v = 0;
  dynamic v2;
}

main() {
  var c1 = new C() as C?;
  int? a1 = c1?.v++;
  try { int? a2 = c1?.v2++; } catch (e) {}
  C? c2;
  int? a3 = c2?.v++;
  int? a4 = c2?.v2++;
}