ensure-parser? ( object -- ? ) - Factor Documentation

Vocabulary
peg.private

Inputs and outputs

object	an object
?	a boolean

Word description
Tests if the object is an instance of the ensure-parser class.

Definition

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

IN: peg.private

: ensure-parser? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ ensure-parser eq? ] [ drop f ] if ;