private static unsafe T WrapElement(IntPtr memberPointer)
{
if (ourCachedInstanceCtor == null)
{
ourCachedInstanceCtor = typeof(T).GetConstructor(new[] { typeof(IntPtr) });
}
if (ourElementIsValueType)
{
return((T)ourCachedInstanceCtor.Invoke(new object[]
{ IL2CPP.il2cpp_value_box(Il2CppClassPointerStore <T> .NativeClassPtr, memberPointer) }));
}
var referencePointer = *(IntPtr *)memberPointer;
if (referencePointer == IntPtr.Zero)
{
return(null);
}
if (typeof(Il2CppObjectBase).IsAssignableFrom(typeof(T)))
{
var typePtr = Il2CppClassPointerStore <T> .NativeClassPtr;
var referenceClassPtr = IL2CPP.il2cpp_object_get_class(referencePointer);
if (RuntimeSpecificsStore.IsInjected(typePtr) && IL2CPP.il2cpp_class_is_assignable_from(typePtr, referenceClassPtr))
{
return(ClassInjectorBase.GetMonoObjectFromIl2CppPointer(referencePointer) as T);
}
}
return((T)ourCachedInstanceCtor.Invoke(new object[] { referencePointer }));
}
public T TryCast <T>() where T : Il2CppObjectBase
{
var nestedTypeClassPointer = Il2CppClassPointerStore <T> .NativeClassPtr;
if (nestedTypeClassPointer == IntPtr.Zero)
{
throw new ArgumentException($"{typeof(T)} is not al Il2Cpp reference type");
}
// todo: support arrays
var ownClass = IL2CPP.il2cpp_object_get_class(Pointer);
if (!IL2CPP.il2cpp_class_is_assignable_from(nestedTypeClassPointer, ownClass))
{
return(null);
}
if (RuntimeSpecificsStore.IsInjected(ownClass))
{
return(ClassInjectorBase.GetMonoObjectFromIl2CppPointer(Pointer) as T);
}
return((T)Activator.CreateInstance(typeof(T), Pointer));
}
public Il2CppObjectBase(IntPtr pointer)
{
if (pointer == IntPtr.Zero)
{
throw new NullReferenceException();
}
myGcHandle = RuntimeSpecificsStore.ShouldUseWeakRefs(IL2CPP.il2cpp_object_get_class(pointer))
? IL2CPP.il2cpp_gchandle_new_weakref(pointer, false)
: IL2CPP.il2cpp_gchandle_new(pointer, false);
}
public T TryCast <T>() where T : Il2CppObjectBase
{
var nestedTypeClassPointer = Il2CppClassPointerStore <T> .NativeClassPtr;
if (nestedTypeClassPointer == IntPtr.Zero)
{
throw new ArgumentException($"{typeof(T)} is not an Il2Cpp reference type");
}
var ownClass = IL2CPP.il2cpp_object_get_class(Pointer);
if (!IL2CPP.il2cpp_class_is_assignable_from(nestedTypeClassPointer, ownClass))
{
return(null);
}
if (RuntimeSpecificsStore.IsInjected(ownClass))
{
var monoObject = ClassInjectorBase.GetMonoObjectFromIl2CppPointer(Pointer) as T;
if (monoObject != null)
{
return(monoObject);
}
}
var type = Il2CppClassPointerStore <T> .CreatedTypeRedirect ?? typeof(T);
// Base case: Il2Cpp constructor => call it directly
if (type.GetConstructor(new[] { typeof(IntPtr) }) != null)
{
return((T)Activator.CreateInstance(type, Pointer));
}
// Special case: We have a parameterless constructor
// However, it could be be user-made or implicit
// In that case we set the GCHandle and then call the ctor and let GC destroy any objects created by DerivedConstructorPointer
var obj = (T)FormatterServices.GetUninitializedObject(type);
obj.CreateGCHandle(Pointer);
obj.isWrapped = true;
var ctor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null,
Type.EmptyTypes, Array.Empty <ParameterModifier>());
if (ctor != null)
{
ctor.Invoke(obj, null);
}
return(obj);
}
internal void CreateGCHandle(IntPtr objHdl)
{
if (objHdl == IntPtr.Zero)
{
throw new NullReferenceException();
}
// This object already wraps an Il2Cpp object, skip the pointer and let it be GC'd
if (isWrapped)
{
return;
}
myGcHandle = RuntimeSpecificsStore.ShouldUseWeakRefs(IL2CPP.il2cpp_object_get_class(objHdl))
? IL2CPP.il2cpp_gchandle_new_weakref(objHdl, false)
: IL2CPP.il2cpp_gchandle_new(objHdl, false);
}
public T Unbox <T>() where T : unmanaged
{
var nestedTypeClassPointer = Il2CppClassPointerStore <T> .NativeClassPtr;
if (nestedTypeClassPointer == IntPtr.Zero)
{
throw new ArgumentException($"{typeof(T)} is not al Il2Cpp reference type");
}
var ownClass = IL2CPP.il2cpp_object_get_class(Pointer);
if (!IL2CPP.il2cpp_class_is_assignable_from(nestedTypeClassPointer, ownClass))
{
throw new InvalidCastException($"Can't cast object of type {Marshal.PtrToStringAnsi(IL2CPP.il2cpp_class_get_name(IL2CPP.il2cpp_object_get_class(Pointer)))} to type {typeof(T)}");
}
return(Marshal.PtrToStructure <T>(IL2CPP.il2cpp_object_unbox(Pointer)));
}
public T Cast <T>() where T : Il2CppObjectBase
{
return(TryCast <T>() ?? throw new InvalidCastException($"Can't cast object of type {Marshal.PtrToStringAnsi(IL2CPP.il2cpp_class_get_name(IL2CPP.il2cpp_object_get_class(Pointer)))} to type {typeof(T)}"));
}