>
> Using ''sandbox as an argument to `namespace-require` to refer to a
> local module is something like passing 'x to `eval` to try to refer to
> a local variable `x`. The `namespace-require` procedure doesn't know
> where it's being called from, so it doesn't work.
>
> Try `quote-module-path`, which expands at compile time to effectively
> embed its context:
>
> #lang racket/base
> (require syntax/location)
>
> (module sandbox racket/base
> (provide #%app #%datum test)
> (define (test) (displayln 'test)))
>
> (parameterize ((current-namespace (make-base-empty-namespace)))
> (namespace-require (quote-module-path sandbox))
> (eval '(test)))
>
This is exactly what I was looking for! Thank you. It's a pity I didn't
ask in the past :)
However, now I see a problem with creating executables with raco exe.
MWE follows.
==== test-submod.rkt
#lang racket
(require syntax/location)
(module my-dsl racket/base
(provide #%app my-proc)
(define (my-proc)
(displayln "my-dsl/my-proc")))
(define (parse sexp)
(parameterize ((current-namespace (make-base-empty-namespace)))
(namespace-require (quote-module-path my-dsl))
(eval sexp)))
(parse '(my-proc))
====
And then:
$ ../racket-lang/racket/racket/bin/racket --version
Welcome to Racket v7.9.0.4 [cs].
$ ../racket-lang/racket/racket/bin/racket test-submod.rkt
my-dsl/my-proc
$ ../racket-lang/racket/racket/bin/raco exe test-submod.rkt
$ ./test-submod
require: unknown module
module name: (submod '#%mzc:test-submod my-dsl)
context...:
.../TD4/test-submod.rkt:12:0: parse
body of '#%mzc:test-submod
$
When parsed, compiled and run using racket binary, it works as expected.
When parsed and compiled using raco exe, it succeeds without any error
and the resulting binary give aforementioned error.
Any idea where did I get it wrong?
Dominik
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