While it is technically correct to assign to parameters from within method bodies, doing so before the parameter value is read is likely a bug.
Instead, initial values of parameters should be, if not treated as readonly then at least read before reassignment.
Noncompliant code example
Module Module1
Sub Foo(ByVal a As Integer)
a = 42 ' Noncompliant
End Sub
End Module
Compliant solution
Module Module1
Sub Foo(ByVal a As Integer)
Dim tmp = a
tmp = 42
End Sub
End Module
Exceptions
ByRef parameters are ignored.
Module Module1
Sub Foo(ByRef a As Integer)
a = 42 ' Ignored; it is a ByRef parameter
End Sub
End Module
