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11 lines
298 B
Racket
11 lines
298 B
Racket
#lang racket/base
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(require (for-syntax racket/base) pollen/tag)
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(provide def/c (rename-out (top~ #%top)))
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(define-syntax-rule (top~ . ID)
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(#%app make-default-tag-function 'ID))
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(define-syntax (def/c stx)
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(syntax-case stx ()
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[(_ X) (identifier-binding #'X) #'X]
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[(_ X) #'(#%top . X)])) |