VARIANT-MEMBER:
Algebraic data types

Prev:	VARIANT:
Next:	variant-class

Vocabulary
variants

Word description
Defines a new member of a variant class without restricting such definitions to a single statement or source file. The variant class should be listed first, and the class member should follow.

Examples

USING: kernel variants ; IN: scratchpad VARIANT: list ; VARIANT-MEMBER: list nil ; VARIANT-MEMBER: list cons: { { first object } { rest list } } ;

Definition

USING: lexer parser ;

IN: variants

SYNTAX: VARIANT-MEMBER:
    scan-word scan-token parse-variant-member
    define-variant-class-member ";" expect ;