Language/Expressions/Additive_Expressions/syntax_t13.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 Additive expressions invoke the addition operators on objects.
 * additiveExpression:
 *   multiplicativeExpression (additiveOperator multiplicativeExpression)* |
 *   super (additiveOperator multiplicativeExpression)+
 * ;
 * additiveOperator:
 *   '+' |
 *   '-'
 * ;
 * An additive expression is either a multiplicative expression, or an
 * invocation of an additive operator on either super or an expression e1, with
 * argument e2.
 * @description Checks that a type parameter can not be used
 * as left operand in an additive expression. It is a compile error.
 * @compile-error
 * @author msyabro
 */

class A <T> {
  test() {
    try {
      T - 1;
    } catch (e) {}
  }
}

main() {
  A a = new A();
  a.test();
}