Language/Expressions/Symbols/syntax_t02.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 A symbol literal denotes the name of a declaration in a Dart
/// program.
/// symbolLiteral:
///   `#' (operator | (identifier (`.' identifier)*))
/// ;
/// A symbol literal #id where id does not begin with an underscore (_) is
/// equivalent to the expression const Symbol(id).
/// A symbol literal #_id evaluates to the object that would be returned by
/// the call mirror.getPrivateSymbol(id) where mirror is an instance of the
/// class LibraryMirror defined in the library dart:mirrors, reflecting the
/// current library.
/// @description Checks that symbol literal of the kind #operator can be used
/// and it is equivalent to corresponding const Symbol object.
/// @author ilya

// SharedOptions=--enable-experiment=triple-shift

import '../../../Utils/expect.dart';

main() {
  Expect.identical(const Symbol('~'), #~);
  Expect.identical(const Symbol('=='), #==);
  Expect.identical(const Symbol('[]'), #[]);
  Expect.identical(const Symbol('[]='), #[]=);

  Expect.identical(const Symbol('*'), #*);
  Expect.identical(const Symbol('/'), #/);
  Expect.identical(const Symbol('%'), #%);
  Expect.identical(const Symbol('~/'), #~/);

  Expect.identical(const Symbol('+'), #+);
  Expect.identical(const Symbol('-'), #-);

  Expect.identical(const Symbol('<<'), #<<);
  Expect.identical(const Symbol('>>'), #>>);

  Expect.identical(const Symbol('>>>'), #>>>);

  Expect.identical(const Symbol('<'), #<);
  Expect.identical(const Symbol('<='), #<=);
  Expect.identical(const Symbol('>'), #>);
  Expect.identical(const Symbol('>='), #>=);

  Expect.identical(const Symbol('&'), #&);
  Expect.identical(const Symbol('^'), #^);
  Expect.identical(const Symbol('|'), #|);
}