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feat(ffi): unwind safety: shield FFI entrypoints with panic guard (#546)

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This PR implements widely accepted Rust programming practices for
dealing with panics across ABI (programming language) boundaries.

- Add panic_guard.rs to wrap FFI calls and prevent panic across FFI/ABI boundary (undefined behavior).
- Capture per-thread backtraces via a temporary panic hook
- After a panic, subsequent invocations are poisoned.
- Integrate with_unwind_guard across the engine, schema registry, and target registry exportis

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
This commit is contained in:
Anand Krishnamoorthi
2026-01-20 21:50:10 -06:00
committed by GitHub
parent 9426b2ec02
commit 80686d6ed1
21 changed files with 1008 additions and 501 deletions
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bindings/csharp/Regorus.Tests/Regorus.Tests.csproj
+14 -2
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@@ -6,11 +6,17 @@
<!-- More info about dotnet test integration https://learn.microsoft.com/dotnet/core/testing/unit-testing-platform-integration-dotnet-test -->
<TestingPlatformDotnetTestSupport>true</TestingPlatformDotnetTestSupport>
<TestingPlatformShowTestsFailure>true</TestingPlatformShowTestsFailure>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
</PropertyGroup>
<PropertyGroup>
<!-- If the environment variable is set (such as in a Github Action run), append the suffix to the version number -->
<RegorusPackageVersionSuffix Condition="'$(VersionSuffix)' != ''">-$(VersionSuffix)</RegorusPackageVersionSuffix>
<UseLocalRegorus Condition="'$(UseLocalRegorus)' == ''">true</UseLocalRegorus>
</PropertyGroup>
<PropertyGroup Condition="'$(UseLocalRegorus)' == 'true'">
<DefineConstants>$(DefineConstants);REGORUS_FFI_TEST_HOOKS</DefineConstants>
</PropertyGroup>
<ItemGroup>
@@ -21,7 +27,13 @@
<PackageReference Include="MSTest" Version="3.8.2" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Regorus" Version="0.8.0$(RegorusPackageVersionSuffix)"/>
<ItemGroup Condition="'$(UseLocalRegorus)' == 'true'">
<ProjectReference Include="../Regorus/Regorus.csproj">
<AdditionalProperties>EnableRegorusTestHooks=true</AdditionalProperties>
</ProjectReference>
</ItemGroup>
<ItemGroup Condition="'$(UseLocalRegorus)' != 'true'">
<PackageReference Include="Regorus" Version="0.8.0$(RegorusPackageVersionSuffix)" />
</ItemGroup>
</Project>