A predictable state management library that helps implement the BLoC design pattern
This report summarizes scanner evidence for felangel/bloc, a Dart project with 12,489 GitHub stars. SynthScan examined 83,080 lines of code across 1010 source files, recording 147 pattern matches distributed across 7 syntactic categories. The legacy adjusted pattern signal is 2.7 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.
Can maintainers explain intent, assumptions, and trade-offs? 129 finding(s).
Are imports declared and package/API names verified? 2 finding(s).
Are wrappers, guards, and repeated structures necessary? 26 finding(s).
Which changes need focused human review? 147 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 147 distinct pattern matches across 7 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/src/env.d.ts | 1 | /// <reference path="../.astro/types.d.ts" /> | COMMENT |
| LOW | docs/src/styles/landing.css | 1 | :root { | COMMENT |
| LOW | …er_weather/linux/flutter/generated_plugin_registrant.h | 1 | // | COMMENT |
| LOW | …lutter_todos/packages/todos_api/lib/src/todos_api.dart | 1 | import 'package:todos_api/todos_api.dart'; | COMMENT |
| LOW | …tter_todos/packages/todos_api/lib/src/models/todo.dart | 1 | import 'package:equatable/equatable.dart'; | COMMENT |
| LOW | …tter_todos/packages/todos_api/lib/src/models/todo.dart | 41 | COMMENT | |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 21 | /// | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 41 | /// # Rest of dependencies | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 101 | String get todosOverviewAppBarTitle; | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 121 | /// Text shown in the filter dropdown of the Todos Overview Page for the option to display completed todos only | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 141 | /// In en, this message translates to: | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 161 | String get todosOverviewErrorSnackbarText; | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 181 | /// Button text shown in the options dropdown of the Todos Overview Page that deletes all completed todos | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 201 | /// In en, this message translates to: | COMMENT |
| LOW | examples/flutter_todos/lib/l10n/app_localizations.dart | 221 | String get editTodoTitleLabel; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/repository_provider.dart | 1 | import 'package:flutter/widgets.dart'; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/repository_provider.dart | 21 | /// RepositoryProvider( | COMMENT |
| LOW | packages/flutter_bloc/lib/src/multi_bloc_listener.dart | 1 | import 'package:flutter/widgets.dart'; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/multi_bloc_listener.dart | 21 | /// child: ChildA(), | COMMENT |
| LOW | packages/flutter_bloc/lib/src/multi_bloc_listener.dart | 41 | /// ], | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_provider.dart | 1 | import 'package:bloc/bloc.dart'; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_provider.dart | 21 | /// It automatically handles closing the instance when used with [Create]. | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_provider.dart | 41 | this.lazy = true, | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_consumer.dart | 1 | import 'package:flutter/foundation.dart'; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_consumer.dart | 21 | /// BlocConsumer<BlocA, BlocAState>( | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_consumer.dart | 41 | /// they will default to `true`. | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_selector.dart | 1 | import 'package:flutter/foundation.dart'; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_selector.dart | 21 | /// }, | COMMENT |
| LOW | packages/flutter_bloc/lib/src/multi_bloc_provider.dart | 1 | import 'package:flutter/widgets.dart'; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/multi_bloc_provider.dart | 21 | /// child: ChildA(), | COMMENT |
| LOW | packages/flutter_bloc/lib/src/multi_bloc_provider.dart | 41 | /// ], | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_listener.dart | 21 | /// the [listener] in response to `state` changes in the [bloc]. | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_listener.dart | 41 | /// | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_listener.dart | 61 | /// when the [BlocListener] is initialized. | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_builder.dart | 1 | import 'package:flutter/foundation.dart'; | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_builder.dart | 21 | /// Please refer to [BlocListener] if you want to "do" anything in response to | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_builder.dart | 41 | /// builder: (context, state) { | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_builder.dart | 61 | /// ```dart | COMMENT |
| LOW | packages/flutter_bloc/lib/src/bloc_builder.dart | 101 | COMMENT | |
| LOW | …es/flutter_bloc/lib/src/multi_repository_provider.dart | 1 | import 'package:flutter/widgets.dart'; | COMMENT |
| LOW | …es/flutter_bloc/lib/src/multi_repository_provider.dart | 21 | /// child: ChildA(), | COMMENT |
| LOW | packages/bloc_tools/lib/bloc_tools.dart | 1 | /// Tools for building applications using the | COMMENT |
| LOW | packages/bloc_concurrency/lib/src/restartable.dart | 1 | import 'package:bloc/bloc.dart'; | COMMENT |
| LOW | packages/replay_bloc/lib/src/replay_cubit.dart | 1 | import 'dart:collection'; | COMMENT |
| LOW | packages/replay_bloc/lib/src/replay_cubit.dart | 21 | /// } | COMMENT |
| LOW | packages/replay_bloc/lib/src/replay_bloc.dart | 21 | } | COMMENT |
| LOW | packages/replay_bloc/lib/src/replay_bloc.dart | 41 | /// | COMMENT |
| LOW | packages/angular_bloc/dart_test.yaml | 1 | # As of test: ^0.12.32, we can use a common/base dart_test.yaml, which this is. | COMMENT |
| LOW | packages/angular_bloc/lib/src/pipes/bloc_pipe.dart | 1 | import 'dart:async'; | COMMENT |
| LOW | packages/bloc_test/lib/src/bloc_test.dart | 1 | import 'dart:async'; | COMMENT |
| LOW | packages/bloc_test/lib/src/bloc_test.dart | 21 | /// [seed] is an optional `Function` that returns a state | COMMENT |
| LOW | packages/bloc_test/lib/src/bloc_test.dart | 41 | /// under test is expected to throw after [act] is executed. | COMMENT |
| LOW | packages/bloc_test/lib/src/bloc_test.dart | 61 | /// [blocTest] can optionally be used with a seeded state. | COMMENT |
| LOW | packages/bloc_test/lib/src/bloc_test.dart | 81 | /// act: (bloc) { | COMMENT |
| LOW | packages/bloc_test/lib/src/bloc_test.dart | 101 | /// ); | COMMENT |
| LOW | packages/bloc_test/lib/src/bloc_test.dart | 121 | /// | COMMENT |
| LOW | packages/bloc_test/lib/src/when_listen.dart | 1 | import 'dart:async'; | COMMENT |
| LOW | packages/bloc_test/lib/src/when_listen.dart | 21 | /// | COMMENT |
| LOW | packages/bloc_test/lib/src/mock_bloc.dart | 1 | import 'package:bloc/bloc.dart'; | COMMENT |
| LOW | packages/bloc_test/lib/src/mock_bloc.dart | 21 | /// **BAD** | COMMENT |
| 27 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | packages/bloc_tools/e2e/main.dart | 0 | import 'package:bloc/bloc.dart'; class countercubit extends cubit<int> { ^^^^^^^^^^^^ countercubit() : super(0); } | STRING |
| HIGH | …ckages/bloc_lint/test/src/rules/prefer_cubit_test.dart | 0 | import 'package:bloc/bloc.dart'; class countercubit extends cubit<int> { ^^^^^^^^^^^^ countercubit() : super(0); } | STRING |
| HIGH | …t/src/rules/prefer_void_public_cubit_methods_test.dart | 0 | import 'package:bloc/bloc.dart'; class countercubit extends cubit<int> { ^^^^^^^^^^^^ countercubit() : super(0); } | STRING |
| HIGH | …est/src/rules/prefer_file_naming_conventions_test.dart | 0 | import 'package:bloc/bloc.dart'; class countercubit extends cubit<int> { ^^^^^^^^^^^^ countercubit() : super(0); } | STRING |
| HIGH | …bloc_lint/test/src/rules/avoid_public_fields_test.dart | 0 | import 'package:bloc/bloc.dart'; class countercubit extends cubit<int> { ^^^^^^^^^^^^ countercubit() : super(0); } | STRING |
| HIGH | packages/bloc_lint/test/src/rules/prefer_bloc_test.dart | 0 | import 'package:bloc/bloc.dart'; class countercubit extends cubit<int> { ^^^^^^^^^^^^ countercubit() : super(0); } | STRING |
| HIGH | packages/bloc_lint/test/src/lint_test_helper.dart | 0 | packages: bloc: dependency: "direct main" description: name: bloc sha256: "52c10575f4445c61dd9e0cafcc6356fdd827c4c64dd79 | STRING |
| HIGH | packages/bloc_lint/test/src/analysis_options_test.dart | 0 | packages: bloc: dependency: "direct main" description: name: bloc sha256: "52c10575f4445c61dd9e0cafcc6356fdd827c4c64dd79 | STRING |
| HIGH | packages/bloc_lint/test/src/linter_test.dart | 0 | packages: bloc: dependency: "direct main" description: name: bloc sha256: "52c10575f4445c61dd9e0cafcc6356fdd827c4c64dd79 | STRING |
| HIGH | packages/bloc_lint/test/src/linter_test.dart | 0 | import 'package:bloc/bloc.dart'; enum counterevent { increment, decrement } class counterbloc extends bloc<counterevent, | STRING |
| HIGH | …oc_lint/test/src/rules/avoid_flutter_imports_test.dart | 0 | import 'package:bloc/bloc.dart'; enum counterevent { increment, decrement } class counterbloc extends bloc<counterevent, | STRING |
| HIGH | …est/src/rules/prefer_file_naming_conventions_test.dart | 0 | import 'package:bloc/bloc.dart'; enum counterevent { increment, decrement } class counterbloc extends bloc<counterevent, | STRING |
| HIGH | …int/test/src/rules/avoid_public_bloc_methods_test.dart | 0 | import 'package:bloc/bloc.dart'; enum counterevent { increment, decrement } class counterbloc extends bloc<counterevent, | STRING |
| HIGH | …bloc_lint/test/src/rules/avoid_public_fields_test.dart | 0 | import 'package:bloc/bloc.dart'; enum counterevent { increment, decrement } class counterbloc extends bloc<counterevent, | STRING |
| HIGH | packages/bloc_lint/test/src/rules/prefer_bloc_test.dart | 0 | import 'package:bloc/bloc.dart'; enum counterevent { increment, decrement } class counterbloc extends bloc<counterevent, | STRING |
| HIGH | …ckages/bloc_lint/test/src/rules/prefer_cubit_test.dart | 0 | import 'package:bloc/bloc.dart'; enum counterevent { increment, decrement } class counterbloc extends bloc<counterevent, | STRING |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …rator_plugin/src/main/resources/liveTemplates/Bloc.xml | 16 | value="BlocConsumer<$Subject$$EnumBloc$, $Subject$State>( listener: (context, state) { | CODE |
| LOW | …rator_plugin/src/main/resources/liveTemplates/Bloc.xml | 27 | value="BlocListener<$Subject$$EnumBloc$, $Subject$State>( listener: (context, state) { | CODE |
| LOW | …rator_plugin/src/main/resources/liveTemplates/Bloc.xml | 62 | value="MultiBlocListener( listeners: [ BlocListener<$Subject$$EnumBloc$, $Subject$State&g | CODE |
| LOW | …rator_plugin/src/main/resources/liveTemplates/Bloc.xml | 111 | value="class $Subject$Bloc extends Bloc<$Subject$Event, $Subject$State> { $Subject$Bloc() : su | CODE |
| LOW | …rator_plugin/src/main/resources/liveTemplates/Bloc.xml | 119 | value="on<$eventName$>((event, emit) { // TODO: implement event handler });" | CODE |
| LOW | …rator_plugin/src/main/resources/liveTemplates/Bloc.xml | 217 | value="blocTest<$Subject$$EnumBloc$, $Subject$State>( $DESCRIPTION$, build: () => $Su | CODE |
| LOW | …intellij_generator_plugin/intention_action/Snippets.kt | 52 | " // TODO: implement listener\n" + | CODE |
| LOW | …intellij_generator_plugin/intention_action/Snippets.kt | 68 | " // TODO: implement listener\n" + | CODE |
| LOW | …intellij_generator_plugin/intention_action/Snippets.kt | 101 | " // TODO: implement listener\n" + | CODE |
| LOW | extensions/vscode/snippets/bloc.json | 8 | "\t\t\t${2:// TODO: implement event handler}", | CODE |
| LOW⚡ | extensions/vscode/snippets/bloc.json | 31 | "\t\t${2:// TODO: implement onEvent}", | CODE |
| LOW⚡ | extensions/vscode/snippets/bloc.json | 36 | "\t\t${3:// TODO: implement onError}", | CODE |
| LOW⚡ | extensions/vscode/snippets/bloc.json | 43 | "\t\t${4:// TODO: implement onChange}", | CODE |
| LOW⚡ | extensions/vscode/snippets/bloc.json | 49 | "\t\t${4:// TODO: implement onTransition}", | CODE |
| LOW | extensions/vscode/snippets/bloc.json | 91 | "\t${2:// TODO: implement event handler}", | CODE |
| LOW | extensions/vscode/snippets/bloc.json | 103 | "\t${5:// TODO: implement event handler}", | CODE |
| LOW | extensions/vscode/snippets/flutter_bloc.json | 80 | "\t\t${3:// TODO: implement listener}", | CODE |
| LOW | extensions/vscode/snippets/flutter_bloc.json | 93 | "\t\t\t\t${3:// TODO: implement listener}", | CODE |
| LOW | extensions/vscode/snippets/flutter_bloc.json | 98 | "\t\t\t\t${6:// TODO: implement listener}", | CODE |
| LOW | extensions/vscode/snippets/flutter_bloc.json | 111 | "\t\t${3:// TODO: implement listener}", | CODE |
| LOW | extensions/vscode/src/templates/bloc.template.ts | 29 | // TODO: implement event handler | COMMENT |
| LOW | extensions/vscode/src/templates/bloc.template.ts | 50 | // TODO: implement event handler | COMMENT |
| LOW | extensions/vscode/src/templates/bloc.template.ts | 72 | // TODO: implement event handler | COMMENT |
| LOW | extensions/vscode/src/commands/convert-to.command.ts | 21 | \${4:// TODO: implement listener} | CODE |
| LOW | extensions/vscode/src/commands/wrap-with.command.ts | 25 | \${3:// TODO: implement listener} | CODE |
| LOW | extensions/vscode/src/commands/wrap-with.command.ts | 41 | \${3:// TODO: implement listener} | CODE |
| LOW⚡ | packages/hydrated_bloc/README.md | 181 | // TODO: implement read | COMMENT |
| LOW⚡ | packages/hydrated_bloc/README.md | 186 | // TODO: implement write | COMMENT |
| LOW⚡ | packages/hydrated_bloc/README.md | 191 | // TODO: implement delete | COMMENT |
| LOW⚡ | packages/hydrated_bloc/README.md | 196 | // TODO: implement clear | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …tensions/vscode/src/language-server/language-server.ts | 45 | async function startLanguageServerWithProgress(executable: string) { | CODE |
| LOW | extensions/vscode/src/templates/cubit.template.ts | 15 | function getEquatableCubitTemplate(cubitName: string) { | CODE |
| LOW | extensions/vscode/src/templates/bloc-event.template.ts | 19 | function getEquatableBlocEventTemplate( | CODE |
| LOW | extensions/vscode/src/templates/bloc-event.template.ts | 37 | function getDefaultBlocEventTemplate( | CODE |
| LOW | extensions/vscode/src/templates/cubit-state.template.ts | 19 | function getEquatableCubitStateTemplate( | CODE |
| LOW | extensions/vscode/src/templates/cubit-state.template.ts | 40 | function getDefaultCubitStateTemplate( | CODE |
| LOW | extensions/vscode/src/templates/cubit-state.template.ts | 57 | function getFreezedCubitStateTemplate(cubitName: string): string { | CODE |
| LOW | extensions/vscode/src/templates/bloc-state.template.ts | 19 | function getEquatableBlocStateTemplate( | CODE |
| LOW | extensions/vscode/src/templates/bloc-state.template.ts | 40 | function getDefaultBlocStateTemplate( | CODE |
| LOW | extensions/vscode/src/templates/bloc-state.template.ts | 57 | function getFreezedBlocStateTemplate(blocName: string): string { | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | README.md | 213 | - [Feature Scaffolding for VSCode](https://marketplace.visualstudio.com/items?itemName=KiritchoukC.flutter-clean-archite | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | examples/flutter_wizard/lib/main.dart | 117 | hintText: 'John Doe', | CODE |
| LOW | …hydrated_bloc/test/cubits/json_serializable_cubit.dart | 28 | 'John Doe', | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …les/github_search/angular_github_search/web/styles.css | 1350 | 2. Don't forget to clearfix your floats with .cf | CODE |