"Invocant" is being used as an English word, without necessarily the same meaning as in Latin.
I think you've missed my point, which is that the -ant suffix (for -are verbs) refers to the doer of the verb — that is, the subject, not the object.
"Invocant" means "caller"; and referring to the object of the method as the sender of the message rather than its receiver is in direct and gross contradiction of all established OO language.
If they really felt it necessary to choose a new word, they should have done better.
