none-type? ( object -- ? )

Vocabulary

gobject-introspection.types

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the none-type class.

Definition

USING: accessors gobject-introspection.repository kernel ;

IN: gobject-introspection.types

: none-type? ( object -- ? )
    dup simple-type? [ name>> "none" = ] [ drop f ] if ;