ReactiveX/rxdart

This system is a Dart/Flutter library ecosystem centered on reactive programming. It provides the RxDart library, which implements advanced asynchronous stream operators and subjects for managing data flows, alongside a companion Flutter package that offers reactive UI widgets for binding streams to the user interface. The repository also includes example applications, such as a GitHub search client, demonstrating these patterns in practice.

A new Flutter example application for GitHub search has been added to the repository. The implementation uses a BLoC (Business Logic Component) pattern, featuring a dedicated API client for GitHub, a state management layer with distinct states (loading, error, empty, populated), and a reactive UI driven by RxDart streams. The example includes all necessary widgets for the search interface, including result lists, loading indicators, and error handling views.

_examples/flutter/github\search · high confidence

The new \rxdart\_flutter\ package provides Flutter widgets for working with \ValueStream\s, including \ValueStreamBuilder\ for rebuilding UI based on stream values, \ValueStreamListener\ for handling side effects, and \ValueStreamConsumer\ which combines both capabilities. The widgets support optional \child\ parameters for stable widgets, \buildWhen\ conditions for controlling rebuilds, and handle errors for streams without initial values or with emitted errors.

_packages/rxdart\flutter · high confidence

The library now includes implementations for several new reactive stream operators: \ConcatStream\ and \ConcatEagerStream\ for sequential execution, \DeferStream\ for lazy stream creation, \ForkJoinStream\ for waiting on multiple streams, \FromCallableStream\ for wrapping callables, \MergeStream\ for combining streams, \NeverStream\ for infinite streams, \RaceStream\ for competitive emission, \RangeStream\ for integer sequences, \RepeatStream\ for repeating streams, \RetryStream\ and \RetryWhenStream\ for error handling, and \ConnectableStream\ variants (\Publish\, \Value\, \Replay\) for managing cold streams. These additions expand the toolkit for composing asynchronous data flows.

packages/rxdart/lib · high confidence

The \fibonacci\ and \flutter/github\_search\ example projects have been updated with modern project configurations. The \fibonacci\ example now includes a \.gitignore\ and \analysis\_options.yaml\ using \package:lints/recommended\. The \flutter/github\_search\ example has been updated with a \.metadata\ file for Flutter's migrate tool, updated \analysis\_options.yaml\ using \package:flutter\_lints/flutter.yaml\, and refreshed Android and iOS native project files (including \AndroidManifest.xml\, \MainActivity.kt\, \AppDelegate.swift\, and Xcode project configurations) to align with current Flutter standards.

examples · medium confidence

Added new test files for Rx stream operators (including combineLatest, concat, defer, forkJoin, fromCallable, merge, never, race, range, repeat, retry, and others) and subjects (Behavior, Publish, Replay), as well as backpressure transformers (buffer, debounce, throttle, window) and utility classes (Notification, CompositeSubscription). These tests verify the behavior of the RxDart library's reactive stream implementations.

packages/rxdart/test · high confidence

The repository's root \pubspec.yaml\ and \pubspec.lock\ have been updated to use \lints\ version 6.0.0 and \melos\ version 6.3.3. Additionally, the \examples/fibonacci\ example now depends on \lints\ version 4.0.0, while the \examples/web\ example uses \lints\ 4.0.0 and \build\_runner\ 2.4.9. The \examples/flutter/github\_search\ example has been updated with new Android build configuration files (\build.gradle\, \settings.gradle\, etc.) and updated dependencies including \flutter\_lints\ 4.0.0 and \build\_runner\ 2.4.9. The \packages/rxdart\_flutter\ package and its example have been added, with the main package depending on \rxdart\ 0.28.0 and \meta\ 1.3.0, and the example using \flutter\_lints\ 1.0.4.

(dependencies) · high confidence

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

• CAI 62 → 67 (+5.6)
• Rubric changed (rubric-2026.08.19 → rubric-2026.09.15) — scores are not directly comparable.

• Code Health 98 → 97 (-0.7)
• Architecture 100 → 96 (-3.5)
• Maturity 59 → 58 (-1.1)
• Readiness 56 → 67 (+11.8)
• Security 55 → 69 (+14.3)
• Domain Modelling 100 → 100 (+0.0)

• Coverage not included — suite not readable by the collector
• Dependency hygiene not measured — dependency manifest found but not parsed for hygiene
• Documentation Quality not included (check did not complete)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• Low: security finding (details withheld)
• Low: security finding (details withheld)
• No exposed public API
• Test reliability not included
• complexity unreadable for .dart, .swift — churn × complexity hotspots could not be measured

• Dependency hygiene PARTLY measured — Maven/Gradle declarations read, no dependency graph resolved
• Documentation: no installation or build instructions (README.md)
• Documentation: no usage examples (README.md)
• Duplicated block (10 lines × 2) (packages/rxdart/lib/src/streams/merge.dart)
• Duplicated block (10 lines × 3) (packages/rxdart/lib/src/streams/retry.dart)
• Duplicated block (13 lines × 3) (packages/rxdart/lib/src/subjects/behavior_subject.dart)
• Duplicated block (5 lines × 3) (packages/rxdart/lib/src/subjects/behavior_subject.dart)
• Duplicated block (9 lines × 2) (packages/rxdart_flutter/lib/src/value_stream_builder.dart)
• Further orphaned files (smaller)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• …and 20 more

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

ReactiveX/rxdart was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point a surveyor at a repository you know and see whether you agree with it.