Language/13_Statements/09_Switch_A05_t01.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 Execution of a switch statement of the form
 * switch (e) {label11 ..label1j1 case e1: s1 … labeln1 ..labelnjn case en: sn default: sn+1}
 * or the form switch (e) { label11 … label1j1 case e1: s1 … labeln1 ..labelnjn case en: sn}
 * proceeds as follows:
 * The statement var id = e; is evaluated, where id is a variable whose name is
 * distinct from any other variable in the program.  In checked mode, it is a run
 * time error if the value of e is not an instance of the same type as the constants e1 … en.
 * Next, the case clause case e1: s1 is executed if it exists.
 * If case e1: s1 does not exist, then if there is a default clause it is executed by executing sn+1.
 * @description Checks that if the value of expression e is not an instance of the same
 * type as the constants of case clauses, it is a runtime error in checked mode only.
 * @static-warning
 * @author msyabro
 * @reviewer rodionov
 */

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

main() {
  checkTypeError(() {
      switch(1) {
        case '1': break; /// static type warning
        case '2': break; /// static type warning
        default:
      }
  });
  
  checkTypeError(() {
    switch('abc') {
      case 1: break; /// static type warning
    }
  });
  
}