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typesetting/pitfall/sugar/stub.rkt

31 lines
1.2 KiB
Racket

8 years ago
#lang racket/base
(require (for-syntax racket/base br/syntax) br/define)
(provide (all-defined-out))
(begin-for-syntax
(require racket/string racket/format)
(define (make-prefix caller-stx)
(string-join (map ~a (list (syntax-source caller-stx) (syntax-line caller-stx))) ":" #:after-last ":")))
8 years ago
(define-macro (define-stub-stop ID)
(with-pattern ([ERROR-ID (suffix-id (prefix-id (make-prefix caller-stx) #'ID) ":not-implemented")])
8 years ago
#'(define (ID . args)
(error 'ERROR-ID))))
(provide (rename-out [define-stub-stop define-stub]))
(define-macro (define-stub-go ID)
(with-pattern ([ERROR-ID (suffix-id (prefix-id (make-prefix caller-stx) #'ID) ":not-implemented")])
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#'(define (ID . args)
(displayln 'ERROR-ID))))
(define-macro (define-unfinished (ID . ARGS) . BODY)
(with-pattern ([ID-UNFINISHED (suffix-id (prefix-id (make-prefix caller-stx) #'ID) ":unfinished")])
8 years ago
#'(define (ID . ARGS)
(begin . BODY)
(error 'ID-UNFINISHED))))
(define-macro (unfinished)
(with-pattern ([ID-UNFINISHED (prefix-id (syntax-source caller-stx) ":" (syntax-line caller-stx) ":" #'unfinished)])
#'(error 'ID-UNFINISHED)))