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fix(extractor): recognize .Close() as a field release (receiver-sco… #524

fix(extractor): recognize .Close() as a field release (receiver-sco…

fix(extractor): recognize .Close() as a field release (receiver-sco… #524

Triggered via push June 23, 2026 07:12
Status Success
Total duration 2m 41s
Artifacts

ci.yml

on: push
lint (ruff + mypy --strict)
12s
lint (ruff + mypy --strict)
extended codegen fuzz
39s
extended codegen fuzz
golden C# compiles & runs (.NET)
17s
golden C# compiles & runs (.NET)
C# leak extractor (Roslyn) -> OwnIR -> core
40s
C# leak extractor (Roslyn) -> OwnIR -> core
own-check repo scan (github + msbuild) + composite action
1m 14s
own-check repo scan (github + msbuild) + composite action
own-check SARIF -> GitHub code scanning (dog-food)
56s
own-check SARIF -> GitHub code scanning (dog-food)
corpus benchmark (real C# recall + specificity)
2m 38s
corpus benchmark (real C# recall + specificity)
Matrix: tests
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20 errors and 41 warnings
own-check repo scan (github + msbuild) + composite action
singleton 'CacheService' captures scoped service 'IRepo' (captive dependency: CacheService -> IRepo)
own-check repo scan (github + msbuild) + composite action
singleton 'EmailSender' captures scoped service 'AppDbContext' (captive dependency: EmailSender -> AppDbContext)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CloseReleaseSample.cs#L37
IDisposable field '_xconn' (type 'FakeConnection') is never disposed — its owner 'ClosesOtherInstanceField' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CloseReleaseSample.cs#L26
IDisposable field '_leakedConn' (type 'FakeConnection') is never disposed — its owner 'LeaksUnclosed' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L50
event 'SomeBus.Pinged' is subscribed (handler '(_, _) => Handle()') to a static (process-lived) event source that outlives 'NonAppDomainSubscriber'; the strong subscription promotes 'NonAppDomainSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L34
event 'AppDomain.CurrentDomain.ProcessExit' is subscribed (handler '(_, _) => _count++') to a static (process-lived) event source that outlives 'CapturingShutdownSubscriber'; the strong subscription promotes 'CapturingShutdownSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L75
IDisposable field '_scopedLeak' (type 'CancellationTokenSource') is never disposed — its owner 'ScopedAliasNameLeak' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L57
IDisposable field '_refRebound' (type 'CancellationTokenSource') is never disposed — its owner 'RefReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L42
IDisposable field '_rebound' (type 'CancellationTokenSource') is never disposed — its owner 'ReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L29
IDisposable field '_neverDisposed' (type 'CancellationTokenSource') is never disposed — its owner 'AliasNeverDisposes' leaks it (leak)
DI001: frontend/roslyn/samples/DiCaptiveSample.cs#L157
[DI001] singleton 'CacheService' captures scoped service 'IRepo' (captive dependency: CacheService -> IRepo) [consumed by the 'CacheService' constructor at frontend/roslyn/samples/DiCaptiveSample.cs:28] [resource: DI lifetime]
DI001: frontend/roslyn/samples/DiCaptiveSample.cs#L149
[DI001] singleton 'EmailSender' captures scoped service 'AppDbContext' (captive dependency: EmailSender -> AppDbContext) [consumed by the 'EmailSender' constructor at frontend/roslyn/samples/DiCaptiveSample.cs:25] [resource: DI lifetime]
OWN001: frontend/roslyn/samples/CloseReleaseSample.cs#L37
[OWN001] IDisposable field '_xconn' (type 'FakeConnection') is never disposed — its owner 'ClosesOtherInstanceField' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/CloseReleaseSample.cs#L26
[OWN001] IDisposable field '_leakedConn' (type 'FakeConnection') is never disposed — its owner 'LeaksUnclosed' leaks it (leak) [resource: disposable field]
OWN014: frontend/roslyn/samples/AppDomainShutdownSample.cs#L50
[OWN014] event 'SomeBus.Pinged' is subscribed (handler '(_, _) => Handle()') to a static (process-lived) event source that outlives 'NonAppDomainSubscriber'; the strong subscription promotes 'NonAppDomainSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path) [resource: subscription token]
OWN014: frontend/roslyn/samples/AppDomainShutdownSample.cs#L34
[OWN014] event 'AppDomain.CurrentDomain.ProcessExit' is subscribed (handler '(_, _) => _count++') to a static (process-lived) event source that outlives 'CapturingShutdownSubscriber'; the strong subscription promotes 'CapturingShutdownSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path) [resource: subscription token]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L75
[OWN001] IDisposable field '_scopedLeak' (type 'CancellationTokenSource') is never disposed — its owner 'ScopedAliasNameLeak' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L57
[OWN001] IDisposable field '_refRebound' (type 'CancellationTokenSource') is never disposed — its owner 'RefReboundAliasLeaks' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L42
[OWN001] IDisposable field '_rebound' (type 'CancellationTokenSource') is never disposed — its owner 'ReboundAliasLeaks' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L29
[OWN001] IDisposable field '_neverDisposed' (type 'CancellationTokenSource') is never disposed — its owner 'AliasNeverDisposes' leaks it (leak) [resource: disposable field]
tests (py3.11)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
tests (py3.13)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
tests (py3.12)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
lint (ruff + mypy --strict)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
golden C# compiles & runs (.NET)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
extended codegen fuzz
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
C# leak extractor (Roslyn) -> OwnIR -> core
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
C# leak extractor (Roslyn) -> OwnIR -> core: frontend/roslyn/OwnSharp.Extractor/Program.cs#L2036
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
own-check SARIF -> GitHub code scanning (dog-food)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
own-check SARIF -> GitHub code scanning (dog-food): frontend/roslyn/OwnSharp.Extractor/Program.cs#L2036
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CustomerViewModel.cs#L15
event 'bus.CustomerChanged' is subscribed (handler 'OnCustomerChanged') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'CustomerViewModel' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CloseReleaseSample.cs#L37
IDisposable field '_xconn' (type 'FakeConnection') is never disposed — its owner 'ClosesOtherInstanceField' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CloseReleaseSample.cs#L26
IDisposable field '_leakedConn' (type 'FakeConnection') is never disposed — its owner 'LeaksUnclosed' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L50
event 'SomeBus.Pinged' is subscribed (handler '(_, _) => Handle()') to a static (process-lived) event source that outlives 'NonAppDomainSubscriber'; the strong subscription promotes 'NonAppDomainSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L34
event 'AppDomain.CurrentDomain.ProcessExit' is subscribed (handler '(_, _) => _count++') to a static (process-lived) event source that outlives 'CapturingShutdownSubscriber'; the strong subscription promotes 'CapturingShutdownSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasedSourceViewModel.cs#L23
event 'src.CustomerChanged' is subscribed (handler 'OnAliased') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'AliasedSourceViewModel' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L75
IDisposable field '_scopedLeak' (type 'CancellationTokenSource') is never disposed — its owner 'ScopedAliasNameLeak' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L57
IDisposable field '_refRebound' (type 'CancellationTokenSource') is never disposed — its owner 'RefReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L42
IDisposable field '_rebound' (type 'CancellationTokenSource') is never disposed — its owner 'ReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L29
IDisposable field '_neverDisposed' (type 'CancellationTokenSource') is never disposed — its owner 'AliasNeverDisposes' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/InjectedDcViewSample.xaml.cs#L22
event '_vm.Changed' is subscribed (handler 'OnChanged') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'InjectedDcView' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/ExternalRefSubscription.cs#L20
event '_bus.Changed' is subscribed (handler 'OnChanged') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'ExternalRefSubscription' alive (possible leak)
own-check repo scan (github + msbuild) + composite action
singleton 'WeakCacheOpt' weakly captures scoped service 'AppDbContext' (WeakReference): 'AppDbContext' is still resolved from the root provider and promoted to application lifetime — the weak reference avoids pinning it for the GC but does not fix the captive-dependency lifetime violation (WeakCacheOpt -> AppDbContext)
own-check repo scan (github + msbuild) + composite action
singleton 'WeakCache' weakly captures scoped service 'AppDbContext' (WeakReference): 'AppDbContext' is still resolved from the root provider and promoted to application lifetime — the weak reference avoids pinning it for the GC but does not fix the captive-dependency lifetime violation (WeakCache -> AppDbContext)
own-check repo scan (github + msbuild) + composite action
singleton 'ConnectionWarmer' captures transient IDisposable 'PooledConnection': it is promoted to application lifetime and disposed only when the root provider is disposed (ConnectionWarmer -> PooledConnection)
own-check repo scan (github + msbuild) + composite action
singleton 'WrapperResolver' resolves transient IDisposable 'PooledConnection' by hand from its injected root IServiceProvider (GetService/GetRequiredService — the service-locator anti-pattern): the root provider tracks every IDisposable it resolves and frees them only at application shutdown, so each call leaks a transient that should be scope-lived — resolve it from an IServiceScope instead (WrapperResolver -> MidConnection -> PooledConnection)
own-check repo scan (github + msbuild) + composite action
singleton 'ExprBodiedResolver' resolves transient IDisposable 'PooledConnection' by hand from its injected root IServiceProvider (GetService/GetRequiredService — the service-locator anti-pattern): the root provider tracks every IDisposable it resolves and frees them only at application shutdown, so each call leaks a transient that should be scope-lived — resolve it from an IServiceScope instead (ExprBodiedResolver -> PooledConnection)
own-check repo scan (github + msbuild) + composite action
singleton 'ConnectionResolver' resolves transient IDisposable 'PooledConnection' by hand from its injected root IServiceProvider (GetService/GetRequiredService — the service-locator anti-pattern): the root provider tracks every IDisposable it resolves and frees them only at application shutdown, so each call leaks a transient that should be scope-lived — resolve it from an IServiceScope instead (ConnectionResolver -> PooledConnection)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CustomerViewModel.cs#L15
event 'bus.CustomerChanged' is subscribed (handler 'OnCustomerChanged') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'CustomerViewModel' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasedSourceViewModel.cs#L23
event 'src.CustomerChanged' is subscribed (handler 'OnAliased') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'AliasedSourceViewModel' alive (possible leak)
OWN001: frontend/roslyn/samples/ExternalRefSubscription.cs#L20
[OWN001] event '_bus.Changed' is subscribed (handler 'OnChanged') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'ExternalRefSubscription' alive (possible leak) [resource: subscription token]
DI002: frontend/roslyn/samples/DiCaptiveSample.cs#L182
[DI002] singleton 'WeakCacheOpt' weakly captures scoped service 'AppDbContext' (WeakReference): 'AppDbContext' is still resolved from the root provider and promoted to application lifetime — the weak reference avoids pinning it for the GC but does not fix the captive-dependency lifetime violation (WeakCacheOpt -> AppDbContext) [consumed by the 'WeakCacheOpt' constructor at frontend/roslyn/samples/DiCaptiveSample.cs:60] [resource: DI lifetime]
DI002: frontend/roslyn/samples/DiCaptiveSample.cs#L179
[DI002] singleton 'WeakCache' weakly captures scoped service 'AppDbContext' (WeakReference): 'AppDbContext' is still resolved from the root provider and promoted to application lifetime — the weak reference avoids pinning it for the GC but does not fix the captive-dependency lifetime violation (WeakCache -> AppDbContext) [consumed by the 'WeakCache' constructor at frontend/roslyn/samples/DiCaptiveSample.cs:57] [resource: DI lifetime]
DI003: frontend/roslyn/samples/DiCaptiveSample.cs#L173
[DI003] singleton 'ConnectionWarmer' captures transient IDisposable 'PooledConnection': it is promoted to application lifetime and disposed only when the root provider is disposed (ConnectionWarmer -> PooledConnection) [consumed by the 'ConnectionWarmer' constructor at frontend/roslyn/samples/DiCaptiveSample.cs:50] [resource: DI lifetime]
DI004: frontend/roslyn/samples/DiCaptiveSample.cs#L137
[DI004] singleton 'WrapperResolver' resolves transient IDisposable 'PooledConnection' by hand from its injected root IServiceProvider (GetService/GetRequiredService — the service-locator anti-pattern): the root provider tracks every IDisposable it resolves and frees them only at application shutdown, so each call leaks a transient that should be scope-lived — resolve it from an IServiceScope instead (WrapperResolver -> MidConnection -> PooledConnection) [singleton registered at frontend/roslyn/samples/DiCaptiveSample.cs:205] [resource: DI lifetime]
DI004: frontend/roslyn/samples/DiCaptiveSample.cs#L123
[DI004] singleton 'ExprBodiedResolver' resolves transient IDisposable 'PooledConnection' by hand from its injected root IServiceProvider (GetService/GetRequiredService — the service-locator anti-pattern): the root provider tracks every IDisposable it resolves and frees them only at application shutdown, so each call leaks a transient that should be scope-lived — resolve it from an IServiceScope instead (ExprBodiedResolver -> PooledConnection) [singleton registered at frontend/roslyn/samples/DiCaptiveSample.cs:201] [resource: DI lifetime]
DI004: frontend/roslyn/samples/DiCaptiveSample.cs#L79
[DI004] singleton 'ConnectionResolver' resolves transient IDisposable 'PooledConnection' by hand from its injected root IServiceProvider (GetService/GetRequiredService — the service-locator anti-pattern): the root provider tracks every IDisposable it resolves and frees them only at application shutdown, so each call leaks a transient that should be scope-lived — resolve it from an IServiceScope instead (ConnectionResolver -> PooledConnection) [singleton registered at frontend/roslyn/samples/DiCaptiveSample.cs:192] [resource: DI lifetime]
OWN001: frontend/roslyn/samples/CustomerViewModel.cs#L15
[OWN001] event 'bus.CustomerChanged' is subscribed (handler 'OnCustomerChanged') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'CustomerViewModel' alive (possible leak) [resource: subscription token]
OWN001: frontend/roslyn/samples/AliasedSourceViewModel.cs#L23
[OWN001] event 'src.CustomerChanged' is subscribed (handler 'OnAliased') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'AliasedSourceViewModel' alive (possible leak) [resource: subscription token]
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/OwnSharp.Extractor/Program.cs#L2036
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
corpus benchmark (real C# recall + specificity)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/