diff options
Diffstat (limited to 'guix/gexp.scm')
| -rw-r--r-- | guix/gexp.scm | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/guix/gexp.scm b/guix/gexp.scm index 45cd5869f7..0d0b661c65 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -1005,6 +1005,15 @@ references; otherwise, return only non-native references." (target (%current-target-system))) "Return (monadically) the sexp corresponding to EXP for the given OUTPUT, and in the current monad setting (system type, etc.)" + (define (self-quoting? x) + (letrec-syntax ((one-of (syntax-rules () + ((_) #f) + ((_ pred rest ...) + (or (pred x) + (one-of rest ...)))))) + (one-of symbol? string? keyword? pair? null? array? + number? boolean?))) + (define* (reference->sexp ref #:optional native?) (with-monad %store-monad (match ref @@ -1034,8 +1043,10 @@ and in the current monad setting (system type, etc.)" #:target target))) ;; OBJ must be either a derivation or a store file name. (return (expand thing obj output))))) - (($ <gexp-input> x) + (($ <gexp-input> (? self-quoting? x)) (return x)) + (($ <gexp-input> x) + (raise (condition (&gexp-input-error (input x))))) (x (return x))))) |