You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
#lang racket
|
|
|
|
(provide (except-out (all-defined-out) top~)
|
|
(rename-out (top~ #%top)))
|
|
|
|
(define-syntax-rule (top~ . id)
|
|
(λ x `(id ,@x)))
|
|
|
|
(define-syntax (bound/c stx)
|
|
(syntax-case stx ()
|
|
[(_ x)
|
|
(if (identifier-binding #'x )
|
|
#'x
|
|
#'(#%top . x))]))
|