runtime/lib/function.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.

class _Closure implements Function {
  bool operator ==(other) native "Closure_equals";

  int get hashCode native "Closure_hashCode";

  _Closure get call => this;

  _Closure _clone() native "Closure_clone";

  // No instance fields should be declared before the following 4 fields whose
  // offsets must be identical in Dart and C++.

  // The following 4 fields are declared both in raw_object.h (for direct access
  // from C++ code) and also here so that the offset-to-field map used by
  // deferred objects is properly initialized.
  // Caution: These fields are not Dart instances, but VM objects. Their Dart
  // names do not need to match the C++ names, but they must be private.
  var _instantiator_type_arguments;
  var _function_type_arguments;
  var _function;
  var _context;
}