UNION:
Factor handbook » The language » Objects » Classes » Union classes

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define-union-class ( class members -- )

Vocabulary
syntax

Syntax

UNION: class members... ;

Inputs
None

Outputs
None

Word description
Defines a union class. An object is an instance of a union class if it is an instance of one of its members.

See also
union-class, define-union-class

Definition

USING: classes.parser classes.union parser ;

IN: syntax

SYNTAX: UNION:
    scan-new-class parse-array-def define-union-class ;