cannot-delete-key? ( object -- ? )

Vocabulary

pairs

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the cannot-delete-key class.

Definition

USING: classes.tuple.private kernel slots.private ;

IN: pairs

: cannot-delete-key? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ cannot-delete-key eq? ] [ drop f ] if ;