Changes in Harmony 2.3.3

LINQPad_Harmony2.3.3.cs

void Main()
{
	Test.Run();
	
	var harmony = new Harmony("test");
	harmony.PatchCategory("category1");
	Test.Run();

	harmony.PatchCategory("category2");
	Test.Run();

	harmony.PatchCategory("category3");
	Test.Run();

	harmony.UnpatchCategory("category1");
	Test.Run();

	harmony.UnpatchCategory("category2");
	Test.Run();

	harmony.UnpatchCategory("category3");
	Test.Run();
}

public class Test
{
	public static void Run()
	{
		try
		{
			new Test().Method();
		}
		catch (Exception ex)
		{
			Console.WriteLine($"Result: {ex.Message}");
		}
		Console.WriteLine("");
	}

	public void Method()
	{
		Console.WriteLine("Test");
		throw new Exception("Test Exception");
	}
}

[HarmonyPatchCategory("category1")]
[HarmonyPatch(typeof(Test), nameof(Test.Method))]
static class Patch1
{
	static void Finalizer(Exception __exception)
	{
		Console.WriteLine($"Finalizer got {__exception.Message}");
	}
}

[HarmonyPatchCategory("category2")]
[HarmonyPatch(typeof(Test), nameof(Test.Method))]
static class Patch2
{
	static void Prefix()
	{
		Console.WriteLine($"Prefix");
	}

	static void Postfix()
	{
		Console.WriteLine($"Postfix");
	}
}

[HarmonyPatchCategory("category3")]
[HarmonyPatch(typeof(Test), nameof(Test.Method))]
[HarmonyPriority(Priority.High)]
static class Patch3
{
	static Exception Finalizer(Exception __exception)
	{
		Console.WriteLine($"High Prio Finalizer prevented {__exception.Message}");
		return null;
	}
}

/* Log:

Test
Result: Test Exception

Test
Finalizer got Test Exception
Result: Test Exception

Prefix
Test
Finalizer got Test Exception
Result: Test Exception

Prefix
Test
High Prio Finalizer prevented Test Exception

Prefix
Test
High Prio Finalizer prevented Test Exception

Test
High Prio Finalizer prevented Test Exception

Test
Result: Test Exception
*/