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pollen/pollen/top.rkt

16 lines
418 B
Racket

#lang racket/base
(require (for-syntax racket/base pollen/setup) pollen/tag)
(provide def/c (rename-out (top~ #%top)))
(define-syntax (top~ stx)
(syntax-case stx ()
[(_ . ID)
(setup:allow-unbound-ids?)
#'(#%app make-default-tag-function 'ID)]
[(_ . ID)
#'(def/c ID)]))
(define-syntax (def/c stx)
(syntax-case stx ()
[(_ ID) (identifier-binding #'ID) #'ID]
[(_ ID) #'(#%top . ID)]))