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In the Flutter framework, only the `foundation` library is allowed to import `package:meta`. If other parts of the Flutter framework want to use `package:meta`, they must do so through the `foundation` library by exporting the desired `package:meta` member. This requirement is enforced through `dev/bots/analyze.dart` [here](https://github.com/flutter/flutter/blob/master/dev/bots/analyze.dart#L2749-L2750). This exports the `internal` attribute so that it can be used by the Flutter framework. This change was split off from https://github.com/flutter/flutter/pull/168437 as it might cause problems in google3 if there is code that imports both `package:meta/meta.dart` and `package:flutter/foundation.dart`. I will get a test exemption. Part of: https://github.com/flutter/flutter/issues/167668 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
53 lines
1.8 KiB
Dart
53 lines
1.8 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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/// Core Flutter framework primitives.
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///
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/// The features defined in this library are the lowest-level utility
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/// classes and functions used by all the other layers of the Flutter
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/// framework.
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library foundation;
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export 'package:meta/meta.dart'
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show
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factory,
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immutable,
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internal,
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mustCallSuper,
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nonVirtual,
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optionalTypeArgs,
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protected,
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required,
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visibleForOverriding,
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visibleForTesting;
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export 'src/foundation/annotations.dart';
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export 'src/foundation/assertions.dart';
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export 'src/foundation/basic_types.dart';
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export 'src/foundation/binding.dart';
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export 'src/foundation/bitfield.dart';
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export 'src/foundation/capabilities.dart';
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export 'src/foundation/change_notifier.dart';
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export 'src/foundation/collections.dart';
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export 'src/foundation/consolidate_response.dart';
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export 'src/foundation/constants.dart';
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export 'src/foundation/debug.dart';
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export 'src/foundation/diagnostics.dart';
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export 'src/foundation/isolates.dart';
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export 'src/foundation/key.dart';
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export 'src/foundation/licenses.dart';
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export 'src/foundation/memory_allocations.dart';
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export 'src/foundation/node.dart';
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export 'src/foundation/object.dart';
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export 'src/foundation/observer_list.dart';
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export 'src/foundation/persistent_hash_map.dart';
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export 'src/foundation/platform.dart';
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export 'src/foundation/print.dart';
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export 'src/foundation/serialization.dart';
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export 'src/foundation/service_extensions.dart';
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export 'src/foundation/stack_frame.dart';
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export 'src/foundation/synchronous_future.dart';
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export 'src/foundation/timeline.dart';
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export 'src/foundation/unicode.dart';
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