hide : string -> ({Name : string, Thy : string} list *
                  {Name : string, Thy : string} list)

SYNOPSIS

Stops the quotation parser from recognizing a constant.

DESCRIBE

A call hide c where c is a string that maps to one or more constants, will prevent the quotation parser from parsing it as such; it will just be parsed as a variable. (A string maps to a set of possible constants because of the possibility of overloading.) The function returns two lists. Both specify constants by way of pairs of strings. The first list is of constants that the string might have mapped to in parsing (specifically, in the absyn_to_term stage of parsing), and the second is the list of constants that would have tried to be printed as the string. It is important to note that the two lists need not be the same.

The effect can be reversed by Parse.update_overload_maps. The function reveal is only the inverse of hide if the only constants mapped to by the string all have that string as their names. (These constants will all be in different theories.)

FAILURE

Never fails.

COMMENTS

The hiding of a constant only affects the quotation parser; the constant is still there in a theory. Further, (re-)defining a string hidden with hide will reveal it once more.

SEEALSO  hidden,   known_constants,   reveal,   set_known_constants,   update_overload_maps