tests/language/const/factory_with_body_test.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.
//
// Tests that a "const factory" with body produces a compile-time error.

class ConstFactoryWithBody {
  const ConstFactoryWithBody();

  const factory ConstFactoryWithBody.one() { return ConstFactoryWithBody(); }
//^^^^^
// [analyzer] SYNTACTIC_ERROR.CONST_FACTORY
// [cfe] Only redirecting factory constructors can be declared to be 'const'.
}

main() {
  const ConstFactoryWithBody.one();
  //    ^
  // [cfe] Non-redirecting const factory invocation is not a constant expression.
}