tests/language/assignable_expression_test.dart

// Copyright (c) 2013, 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.

// Test to detect syntactically illegal left-hand-side (assignable)
// expressions.

class C {
  static var static_field = 0;
}

var tl_static_var = 0;

main() {
  tl_static_var = 0;
  (tl_static_var) = 0;    /// 01: compile-time error
  (tl_static_var)++;      /// 02: compile-time error
  ++(tl_static_var);      /// 03: compile-time error

  C.static_field = 0;
  (C.static_field) = 0;   /// 11: compile-time error
  (C.static_field)++;     /// 12: compile-time error
  ++(C.static_field);     /// 13: compile-time error

  tl_static_var = [1, 2, 3];
  tl_static_var[0] = 0;
  (tl_static_var)[0] = 0;
  (tl_static_var[0]) = 0;    /// 21: compile-time error
  (tl_static_var[0])++;      /// 22: compile-time error
  ++(tl_static_var[0]);      /// 23: compile-time error

  C.static_field = [1, 2, 3];
  (C.static_field[0]) = 0;   /// 31: compile-time error
  (C.static_field[0])++;     /// 32: compile-time error
  ++(C.static_field[0]);     /// 33: compile-time error

  var a = 0;
  (a) = 0;   /// 41: compile-time error
  (a)++;     /// 42: compile-time error
  ++(a);     /// 43: compile-time error

  // Neat palindrome expression. x is assignable, ((x)) is not.
  var funcnuf = (x) => ((x))=((x)) <= (x);  /// 50: compile-time error
}