tests/language/inference_update_1/downward_inference_preferred_over_horizontal_test.dart

// Copyright (c) 2022, 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 when the feature is enabled, types supplied by downward inference
// are preferred over those available via horizontal inference.
//
// The way this happens is that the type parameter is "fixed" after the downward
// inference phase and is not changed in further inference phases.

// SharedOptions=--enable-experiment=inference-update-1

import '../static_type_helper.dart';

testProductOfNums(List<num> values) {
  num a = values.fold(
      1,
      (p, v) =>
          (p..expectStaticType<Exactly<num>>()) *
          (v..expectStaticType<Exactly<num>>()))
    ..expectStaticType<Exactly<num>>();
}

main() {}