Files
Il2CppInspectorRedux/Il2CppInspector.Common/Reflection/EventInfo.cs
2020-02-06 02:51:42 +01:00

61 lines
2.6 KiB
C#

/*
Copyright 2017-2020 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com
All rights reserved.
*/
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
namespace Il2CppInspector.Reflection
{
public class EventInfo : MemberInfo
{
// IL2CPP-specific data
public Il2CppEventDefinition Definition { get; }
public int Index { get; }
// Information/flags about the event
public EventAttributes Attributes { get; }
// Custom attributes for this member
public override IEnumerable<CustomAttributeData> CustomAttributes => CustomAttributeData.GetCustomAttributes(this);
// Methods for the event
public MethodInfo AddMethod { get; }
public MethodInfo RemoveMethod { get; }
public MethodInfo RaiseMethod { get; }
// Event handler delegate type
private int eventTypeReference;
public TypeInfo EventHandlerType => Assembly.Model.TypesByReferenceIndex[eventTypeReference];
// True if the event has a special name
public bool IsSpecialName => (Attributes & EventAttributes.SpecialName) == EventAttributes.SpecialName;
public override MemberTypes MemberType => MemberTypes.Event;
public EventInfo(Il2CppInspector pkg, int eventIndex, TypeInfo declaringType) :
base(declaringType) {
Definition = pkg.Events[eventIndex];
Index = eventIndex;
Name = pkg.Strings[Definition.nameIndex];
eventTypeReference = Definition.typeIndex;
var eventType = pkg.TypeReferences[eventTypeReference];
if ((eventType.attrs & Il2CppConstants.FIELD_ATTRIBUTE_SPECIAL_NAME) == Il2CppConstants.FIELD_ATTRIBUTE_SPECIAL_NAME)
Attributes |= EventAttributes.SpecialName;
// NOTE: This relies on methods being added to TypeInfo.DeclaredMethods in the same order they are defined in the Il2Cpp metadata
// add, remove and raise are method indices from the first method of the declaring type
if (Definition.add >= 0)
AddMethod = declaringType.DeclaredMethods.First(x => x.Index == declaringType.Definition.methodStart + Definition.add);
if (Definition.remove >= 0)
RemoveMethod = declaringType.DeclaredMethods.First(x => x.Index == declaringType.Definition.methodStart + Definition.remove);
if (Definition.raise >= 0)
RaiseMethod = declaringType.DeclaredMethods.First(x => x.Index == declaringType.Definition.methodStart + Definition.raise);
}
}
}