C# Error
CS8334 – Members of {0} ‘{1}’ cannot be returned by writable reference because it is a readonly variable
Reason for the Error & Solution
Members of cannot be returned by writable reference because it is a readonly variable
Example
The following sample generates CS8334:
// CS8334.cs (5,14)
class Program
{
static ref int M(in int arg1, in (int Alice, int Bob) arg2)
{
return ref arg2.Alice;
}
}
To correct this error
To return a reference to a read-only member, refactoring to return ref readonly will correct this error:
class Program
{
static ref readonly int M(in int arg1, in (int Alice, int Bob) arg2)
{
return ref arg2.Alice;
}
}
