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[mono] Fix second pass of MarshallingPInvokeScanner with metadata-free DLLs #89555

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merged 2 commits into from
Jul 28, 2023
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[mono] Fix second pass of MarshallingPInvokeScanner with metadata-free DLLs #89555

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d1fabed
Fix second pass of marshalling scanner to also tolerate metadata-free…
jandupej Jul 27, 2023
638f91a
Assembly name is now checked only when metadata are present.
jandupej Jul 27, 2023
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8 changes: 5 additions & 3 deletions src/tasks/MonoTargetsTasks/MarshalingPInvokeScanner/MarshalingPInvokeScanner.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,9 @@ private void ResolveInconclusiveTypes(HashSet<string> incompatible, string assyP

using FileStream file = new FileStream(assyPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
using PEReader peReader = new PEReader(file);
if (!peReader.HasMetadata)
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Nit: May be good to encapsulate this, so we don't forget to check peReader.HasMetadata each time it is created, but I think it is nice to have.

return; // Just return. There are no metadata in the DLL to help us with remaining types.

MetadataReader mdtReader = peReader.GetMetadataReader();

SignatureDecoder<Compatibility, object> decoder = new(mmtcp, mdtReader, null!);
Expand All @@ -107,9 +110,8 @@ private bool IsAssemblyIncompatible(string assyPath, MinimalMarshalingTypeCompat
using FileStream file = new FileStream(assyPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
using PEReader peReader = new PEReader(file);
if (!peReader.HasMetadata)
{
return false;
}
return false; // No types in this DLL means no incompatible marshaling constructs.

MetadataReader mdtReader = peReader.GetMetadataReader();

foreach(CustomAttributeHandle attrHandle in mdtReader.CustomAttributes)
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