versionless-prolog? ( object -- ? )

Vocabulary

xml.errors

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the versionless-prolog class.

Definition

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

IN: xml.errors

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