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Merge pull request #1266 from dart-lang/merge-stream_channel-package
Merge `package:stream_channel`
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‎.github/ISSUE_TEMPLATE/stream_channel.md

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---
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name: "package:stream_channel"
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about: "Create a bug or file a feature request against package:stream_channel."
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labels: "package:stream_channel"
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---

‎.github/labeler.yml

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- changed-files:
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- any-glob-to-any-file: 'pkgs/stack_trace/**'
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'package:stream_channel':
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- changed-files:
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- any-glob-to-any-file: 'pkgs/stream_channel/**'
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'package:stream_transform':
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- changed-files:
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- any-glob-to-any-file: 'pkgs/stream_transform/**'

‎.github/workflows/stream_channel.yaml

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name: package:stream_channel
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on:
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# Run on PRs and pushes to the default branch.
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push:
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branches: [ main ]
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paths:
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- '.github/workflows/stream_channel.yaml'
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- 'pkgs/stream_channel/**'
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pull_request:
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branches: [ main ]
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paths:
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- '.github/workflows/stream_channel.yaml'
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- 'pkgs/stream_channel/**'
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schedule:
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- cron: "0 0 * * 0"
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env:
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PUB_ENVIRONMENT: bot.github
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defaults:
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run:
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working-directory: pkgs/stream_channel/
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jobs:
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# Check code formatting and static analysis on a single OS (linux)
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# against Dart dev.
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analyze:
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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sdk: [dev]
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steps:
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- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
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- uses: dart-lang/setup-dart@e630b99d28a3b71860378cafdc2a067c71107f94
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with:
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sdk: ${{ matrix.sdk }}
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- id: install
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name: Install dependencies
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run: dart pub get
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- name: Check formatting
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run: dart format --output=none --set-exit-if-changed .
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if: always() && steps.install.outcome == 'success'
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- name: Analyze code
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run: dart analyze --fatal-infos
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if: always() && steps.install.outcome == 'success'
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# Run tests on a matrix consisting of two dimensions:
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# 1. OS: ubuntu-latest, (macos-latest, windows-latest)
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# 2. release channel: dev
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test:
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needs: analyze
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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# Add macos-latest and/or windows-latest if relevant for this package.
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os: [ubuntu-latest]
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sdk: [3.3, dev]
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steps:
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- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
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- uses: dart-lang/setup-dart@e630b99d28a3b71860378cafdc2a067c71107f94
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with:
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sdk: ${{ matrix.sdk }}
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- id: install
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name: Install dependencies
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run: dart pub get
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- name: Run VM tests
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run: dart test --platform vm
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if: always() && steps.install.outcome == 'success'
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- name: Run Chrome tests
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run: dart test --platform chrome
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if: always() && steps.install.outcome == 'success'

‎README.md

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| [source_span](pkgs/source_span/) | Provides a standard representation for source code locations and spans. | [![package issues](https://img.shields.io/badge/package:source_span-4774bc)](https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Asource_span) | [![pub package](https://img.shields.io/pub/v/source_span.svg)](https://pub.dev/packages/source_span) |
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| [sse](pkgs/sse/) | Provides client and server functionality for setting up bi-directional communication through Server Sent Events (SSE) and corresponding POST requests. | [![package issues](https://img.shields.io/badge/package:sse-4774bc)](https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Asse) | [![pub package](https://img.shields.io/pub/v/sse.svg)](https://pub.dev/packages/sse) |
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| [stack_trace](pkgs/stack_trace/) | A package for manipulating stack traces and printing them readably. | [![package issues](https://img.shields.io/badge/package:stack_trace-4774bc)](https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Astack_trace) | [![pub package](https://img.shields.io/pub/v/stack_trace.svg)](https://pub.dev/packages/stack_trace) |
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| [stream_channel](pkgs/stream_channel/) | An abstraction for two-way communication channels based on the Dart Stream class. | [![package issues](https://img.shields.io/badge/package:stream_channel-4774bc)](https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Astream_channel) | [![pub package](https://img.shields.io/pub/v/stream_channel.svg)](https://pub.dev/packages/stream_channel) |
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| [stream_transform](pkgs/stream_transform/) | A collection of utilities to transform and manipulate streams. | [![package issues](https://img.shields.io/badge/package:stream_transform-4774bc)](https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Astream_transform) | [![pub package](https://img.shields.io/pub/v/stream_transform.svg)](https://pub.dev/packages/stream_transform) |
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| [term_glyph](pkgs/term_glyph/) | Useful Unicode glyphs and ASCII substitutes. | [![package issues](https://img.shields.io/badge/package:term_glyph-4774bc)](https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Aterm_glyph) | [![pub package](https://img.shields.io/pub/v/term_glyph.svg)](https://pub.dev/packages/term_glyph) |
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| [test_reflective_loader](pkgs/test_reflective_loader/) | Support for discovering tests and test suites using reflection. | [![package issues](https://img.shields.io/badge/package:test_reflective_loader-4774bc)](https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Atest_reflective_loader) | [![pub package](https://img.shields.io/pub/v/test_reflective_loader.svg)](https://pub.dev/packages/test_reflective_loader) |

‎pkgs/stream_channel/.gitignore

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.buildlog
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.dart_tool/
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.DS_Store
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.idea
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.pub/
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.settings/
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build/
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packages
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.packages
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pubspec.lock

‎pkgs/stream_channel/AUTHORS

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# Below is a list of people and organizations that have contributed
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# to the project. Names should be added to the list like so:
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#
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# Name/Organization <email address>
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Google Inc.

‎pkgs/stream_channel/CHANGELOG.md

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## 2.1.3
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* Require Dart 3.3
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* Move to `dart-lang/tools` monorepo.
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## 2.1.2
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* Require Dart 2.19
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* Add an example.
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* Fix a race condition in `IsolateChannel.connectReceive()` where the channel
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could hang forever if its sink was closed before the connection was established.
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## 2.1.1
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* Require Dart 2.14
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* Populate the pubspec `repository` field.
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* Handle multichannel messages where the ID element is a `double` at runtime
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instead of an `int`. When reading an array with `dart2wasm` numbers within the
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array are parsed as `double`.
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## 2.1.0
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* Stable release for null safety.
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## 2.0.0
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**Breaking changes**
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* `IsolateChannel` requires a separate import
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`package:stram_channel/isolate_channel.dart`.
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`package:stream_channel/stream_channel.dart` will now not trigger any platform
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concerns due to importing `dart:isolate`.
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* Remove `JsonDocumentTransformer` class. The `jsonDocument` top level is still
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available.
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* Remove `StreamChannelTransformer.typed`. Use `.cast` on the transformed
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channel instead.
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* Change `Future<dynamic>` returns to `Future<void>`.
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## 1.7.0
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* Make `IsolateChannel` available through
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`package:stream_channel/isolate_channel.dart`. This will be the required
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import in the next release.
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* Require `2.0.0` or newer SDK.
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* Internal style changes.
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## 1.6.8
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* Set max SDK version to `<3.0.0`, and adjust other dependencies.
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## 1.6.7+1
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* Fix Dart 2 runtime types in `IsolateChannel`.
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## 1.6.7
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* Update SDK version to 2.0.0-dev.17.0.
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* Add a type argument to `MultiChannel`.
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## 1.6.6
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* Fix a Dart 2 issue with inner stream transformation in `GuaranteeChannel`.
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* Fix a Dart 2 issue with `StreamChannelTransformer.fromCodec()`.
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## 1.6.5
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* Fix an issue with `JsonDocumentTransformer.bind` where it created an internal
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stream channel which didn't get a properly inferred type for its `sink`.
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## 1.6.4
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* Fix a race condition in `MultiChannel` where messages from a remote virtual
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channel could get dropped if the corresponding local channel wasn't registered
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quickly enough.
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## 1.6.3
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* Use `pumpEventQueue()` from test.
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## 1.6.2
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* Declare support for `async` 2.0.0.
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## 1.6.1
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* Fix the type of `StreamChannel.transform()`. This previously inverted the
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generic parameters, so it only really worked with transformers where both
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generic types were identical.
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## 1.6.0
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* `Disconnector.disconnect()` now returns a future that completes when all the
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inner `StreamSink.close()` futures have completed.
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## 1.5.0
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* Add `new StreamChannel.withCloseGuarantee()` to provide the specific guarantee
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that closing the sink causes the stream to close before it emits any more
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events. This is the only guarantee that isn't automatically preserved when
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transforming a channel.
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* `StreamChannelTransformer`s provided by the `stream_channel` package now
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properly provide the guarantee that closing the sink causes the stream to
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close before it emits any more events
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## 1.4.0
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* Add `StreamChannel.cast()`, which soundly coerces the generic type of a
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channel.
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* Add `StreamChannelTransformer.typed()`, which soundly coerces the generic type
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of a transformer.
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## 1.3.2
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* Fix all strong-mode errors and warnings.
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## 1.3.1
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* Make `IsolateChannel` slightly more efficient.
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* Make `MultiChannel` follow the stream channel rules.
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## 1.3.0
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* Add `Disconnector`, a transformer that allows the caller to disconnect the
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transformed channel.
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## 1.2.0
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* Add `new StreamChannel.withGuarantees()`, which creates a channel with extra
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wrapping to ensure that it obeys the stream channel guarantees.
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* Add `StreamChannelController`, which can be used to create custom
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`StreamChannel` objects.
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## 1.1.1
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* Fix the type annotation for `StreamChannel.transform()`'s parameter.
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## 1.1.0
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* Add `StreamChannel.transformStream()`, `StreamChannel.transformSink()`,
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`StreamChannel.changeStream()`, and `StreamChannel.changeSink()` to support
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changing only the stream or only the sink of a channel.
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* Be more explicit about `JsonDocumentTransformer`'s error-handling behavior.
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## 1.0.1
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* Fix `MultiChannel`'s constructor to take a `StreamChannel`. This is
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technically a breaking change, but since 1.0.0 was only released an hour ago,
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we're treating it as a bug fix.
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## 1.0.0
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* Initial version

‎pkgs/stream_channel/LICENSE

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Copyright 2015, the Dart project authors.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution.
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* Neither the name of Google LLC nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

‎pkgs/stream_channel/README.md

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[![Build Status](https://github.com/dart-lang/tools/actions/workflows/stream_channel.yaml/badge.svg)](https://github.com/dart-lang/tools/actions/workflows/stream_channel.yaml)
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[![pub package](https://img.shields.io/pub/v/stream_channel.svg)](https://pub.dev/packages/stream_channel)
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[![package publisher](https://img.shields.io/pub/publisher/stream_channel.svg)](https://pub.dev/packages/stream_channel/publisher)
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This package exposes the `StreamChannel` interface, which represents a two-way
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communication channel. Each `StreamChannel` exposes a `Stream` for receiving
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data and a `StreamSink` for sending it.
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`StreamChannel` helps abstract communication logic away from the underlying
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protocol. For example, the [`test`][test] package re-uses its test suite
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communication protocol for both WebSocket connections to browser suites and
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Isolate connections to VM tests.
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[test]: https://pub.dev/packages/test
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This package also contains utilities for dealing with `StreamChannel`s and with
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two-way communications in general. For documentation of these utilities, see
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[the API docs][api].
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[api]: https://pub.dev/documentation/stream_channel/latest/

‎pkgs/stream_channel/analysis_options.yaml

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include: package:dart_flutter_team_lints/analysis_options.yaml
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analyzer:
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language:
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strict-casts: true

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