syndicate-2017/prospect/support/dsl.rkt

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Racket
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#lang racket/base
(require (for-syntax racket/base))
(provide define&provide-dsl-helper-syntaxes)
(define-for-syntax (illegal-use id context stx)
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(raise-syntax-error #f (format "Illegal use of ~a outside ~a" id context) stx))
(define-syntax-rule (define&provide-dsl-helper-syntaxes context (identifier ...))
(begin (provide identifier ...)
(define-syntax (identifier stx) (illegal-use 'identifier context stx))
...))