I'm getting this error in some code with a macro transformer that
produces syntax that includes some bits of child syntax that are sourced
via "read-syntax".
The below example demonstrates.
Assuming that I really do want to use "read-syntax", how do I do this
properly? (I assume that proper is not losing the "#%datum" by
something like "(quasisyntax/loc stx #,(syntax->datum stx))".)
#lang racket/base
(require (for-syntax racket/base) ;; necessary
(for-template racket/base) ;; doesn't help #%datum problem
(for-label racket/base) ;; doesn't help #%datum problem
)
(define-syntax (my-macro stx)
(syntax-case stx ()
((_ NAME) (let ((my-read-stx (read-syntax "my-sourcename"
(open-input-string
"\"hello\""))))
(quasisyntax/loc stx
(string-append "Well, " #,my-read-stx ", " NAME "!"))))))
(my-macro "yourname")
;;=exception=> compile: bad syntax; literal data is not allowed, because
no #%datum syntax transformer is bound in: "hello"
--
http://www.neilvandyke.org/
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