LAZY:

Vocabulary

lazy

Syntax

LAZY: word ( stack -- effect ) definition... ;

Inputs and outputs

word	a new word to define
definition	a word definition

Word description

Creates a lazy word in the current vocabulary. When executed the word will return a lazy that when forced, executes the word definition. Any values on the stack that are required by the word definition are captured along with the lazy.

Examples

USING: arrays lazy sequences prettyprint ; IN: scratchpad LAZY: zeroes ( -- pair ) 0 zeroes 2array ; zeroes force second force first .
0

Definition

USING: effects.parser kernel words ;

IN: lazy

SYNTAX: LAZY: (:) [ make-lazy-quot ] keep define-declared ;