Fix #13197 #13870
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Fix #13197 #13870
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dsyme
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KevinRansom
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Sep 12, 2022
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Thanks for this.
I chatted with @dsyme and we agreed that, in the longer term we need to use type the type-forwards and similar metadata to establish type identity rather than hard coded equivalence based on type + Assembly Identity. However, this solution solves the immediate issue and it is an issue we expect to see others encounter without this fix.
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Fixes regression #13197 related to multiemit (actually, it's related to the use of the ILWrite binary writer rather then Reflection.Emit).
The problem here is that when
/usesdkrefs-is used, the "actual" primary assembly of the compilation is System.Private.CoreLib - i.e. that's where System.Object is defined. However the "target" primary assembly we use remains System.Runtime - that is that's what we code generate for.To emit correct code we need to detect that
System.Private.CoreLibis an equivalent primary assembly reference.