14 lines
307 B
Racket
14 lines
307 B
Racket
#lang racket/base
|
|
|
|
(provide and-let)
|
|
|
|
(require syntax/parse/define "if-let.rkt" (for-syntax racket/base))
|
|
|
|
(define-syntax and-let
|
|
(syntax-parser
|
|
[(_) #'#true]
|
|
[(_ body:expr) #'body]
|
|
[(_ [variable:id condition:expr] rest ...+)
|
|
#'(if-let [variable condition] (and-let rest ...) #false)]))
|
|
|