public sealed override bool Equals([NotNullWhen(true)] object?obj)
{
if (obj == null)
{
return(false);
}
if (object.ReferenceEquals(this, obj))
{
return(true);
}
if (!InternalEqualTypes(this, obj))
{
return(false);
}
// Since this is a MulticastDelegate and we know
// the types are the same, obj should also be a
// MulticastDelegate
Debug.Assert(obj is MulticastDelegate, "Shouldn't have failed here since we already checked the types are the same!");
var d = Unsafe.As <MulticastDelegate>(obj);
// there are 2 kind of delegate kinds for comparison
// 1- Multicast (m_helperObject is Delegate[])
// 2- Single-cast delegate, which can be compared with a structural comparison
IntPtr multicastThunk = GetThunk(MulticastThunk);
if (m_functionPointer == multicastThunk)
{
return(d.m_functionPointer == multicastThunk && InvocationListEquals(d));
}
else
{
if (!object.ReferenceEquals(m_helperObject, d.m_helperObject) ||
(!FunctionPointerOps.Compare(m_extraFunctionPointerOrData, d.m_extraFunctionPointerOrData)) ||
(!FunctionPointerOps.Compare(m_functionPointer, d.m_functionPointer)))
{
return(false);
}
// Those delegate kinds with thunks put themselves into the m_firstParameter, so we can't
// blindly compare the m_firstParameter fields for equality.
if (object.ReferenceEquals(m_firstParameter, this))
{
return(object.ReferenceEquals(d.m_firstParameter, d));
}
return(object.ReferenceEquals(m_firstParameter, d.m_firstParameter));
}
}
public override sealed bool Equals(Object obj)
{
if (obj == null || !InternalEqualTypes(this, obj))
{
return(false);
}
MulticastDelegate d = obj as MulticastDelegate;
if (d == null)
{
return(false);
}
// there are 2 kind of delegate kinds for comparision
// 1- Multicast (m_helperObject is Delegate[])
// 2- Single-cast delegate, which can be compared with a structural comparision
if (m_functionPointer == GetThunk(MulticastThunk))
{
return(InvocationListEquals(d));
}
else
{
if (!Object.ReferenceEquals(m_helperObject, d.m_helperObject) ||
(!FunctionPointerOps.Compare(m_extraFunctionPointerOrData, d.m_extraFunctionPointerOrData)) ||
(!FunctionPointerOps.Compare(m_functionPointer, d.m_functionPointer)))
{
return(false);
}
// Those delegate kinds with thunks put themselves into the m_firstParamter, so we can't
// blindly compare the m_firstParameter fields for equality.
if (Object.ReferenceEquals(m_firstParameter, this))
{
return(Object.ReferenceEquals(d.m_firstParameter, d));
}
return(Object.ReferenceEquals(m_firstParameter, d.m_firstParameter));
}
}