50 lines
2.0 KiB
Racket
50 lines
2.0 KiB
Racket
; Don't change this module to #lang, since it's used by syntax/module-reader
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(module readerr racket/private/base
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(provide raise-read-error
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raise-read-eof-error)
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(define (raise-read-error msg source-name line col pos span #:extra-srclocs [extra-srclocs '()])
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(-raise-read-error make-exn:fail:read msg source-name line col pos span
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extra-srclocs
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'raise-read-error))
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(define (raise-read-eof-error msg source-name line col pos span)
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(-raise-read-error make-exn:fail:read:eof msg source-name line col pos span '()
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'raise-read-eof-error))
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(define (-raise-read-error make-exn:fail:read msg source-name line col pos span extra-srclocs name)
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(define (bad-type which what)
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(raise-argument-error name what which
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msg source-name line col pos span))
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(unless (string? msg) (bad-type 0 "string"))
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(unless (ordinal? line) (bad-type 2 ordinal))
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(unless (cardinal? col) (bad-type 3 cardinal))
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(unless (ordinal? pos) (bad-type 4 ordinal))
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(unless (cardinal? span) (bad-type 5 cardinal))
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(unless (and (list? extra-srclocs) (andmap srcloc? extra-srclocs))
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(raise-argument-error name "(list/c srcloc?)" extra-srclocs))
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(raise
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(make-exn:fail:read
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(format "~a~a"
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(cond [(not (error-print-source-location)) ""]
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[(srcloc->string (srcloc source-name line col pos span))
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=>
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(lambda (s)
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(format "~a: " s))]
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[else ""])
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msg)
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(current-continuation-marks)
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(cons (make-srcloc source-name line col pos span)
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extra-srclocs))))
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(define (ordinal? x)
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(or (not x)
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(exact-positive-integer? x)))
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(define ordinal "(or/c exact-positive-integer? #f)")
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(define (cardinal? x)
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(or (not x)
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(exact-nonnegative-integer? x)))
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(define cardinal "(or/c exact-nonnegative-integer? #f)"))
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