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BepInEx / Il2CppInterop

A tool interoperate between CoreCLR and Il2Cpp at runtime
GNU Lesser General Public License v3.0
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Fix crash calling delegate invoke on il2cpp 29 or higher #78

Closed limoka closed 1 year ago

limoka commented 1 year ago

This PR fixes that calling delegate Invoke() method caused a crash on il2cpp version 29 or higher.

This issue is caused by a new field in the MethodInfo class called virtualMethodPointer. Now when calling delegates il2cpp uses it to determine what to call. Since Il2CppInterop was not aware of that, it's value was null thus causing the crash.

I'm not entirely sure if it's supposed to have a value of it's own though. I have checked with a type from my game and every method there had virtualMethodPointer field equal to methodPointer field.

I have tested this on Unity 2021.3.14, il2cpp 29: no crashes calling delegates or UnityEvent's