diff options
Diffstat (limited to 'guix/gexp.scm')
| -rw-r--r-- | guix/gexp.scm | 75 |
1 files changed, 43 insertions, 32 deletions
diff --git a/guix/gexp.scm b/guix/gexp.scm index d9bdde2e42..600750e846 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -994,6 +994,15 @@ 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 @@ -1023,8 +1032,10 @@ 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))))) @@ -1033,19 +1044,6 @@ and in the current monad setting (system type, etc.)" reference->sexp (gexp-references exp)))) (return (apply (gexp-proc exp) args)))) -(define (syntax-location-string s) - "Return a string representing the source code location of S." - (let ((props (syntax-source s))) - (if props - (let ((file (assoc-ref props 'filename)) - (line (and=> (assoc-ref props 'line) 1+)) - (column (assoc-ref props 'column))) - (if file - (simple-format #f "~a:~a:~a" - file line column) - (simple-format #f "~a:~a" line column))) - "<unknown location>"))) - (define-syntax-rule (define-syntax-parameter-once name proc) ;; Like 'define-syntax-parameter' but ensure the top-level binding for NAME ;; does not get redefined. This works around a race condition in a @@ -1506,24 +1504,37 @@ are searched for in PATH. Return #f when MODULES and EXTENSIONS are empty." #:module-path path #:system system #:target target))) - (return (gexp (eval-when (expand load eval) - (set! %load-path - (cons (ungexp modules) - (append (map (lambda (extension) - (string-append extension - "/share/guile/site/" - (effective-version))) - '((ungexp-native-splicing extensions))) - %load-path))) - (set! %load-compiled-path - (cons (ungexp compiled) - (append (map (lambda (extension) - (string-append extension - "/lib/guile/" - (effective-version) - "/site-ccache")) - '((ungexp-native-splicing extensions))) - %load-compiled-path))))))))) + (return + (gexp (eval-when (expand load eval) + ;; Augment the load paths and delete duplicates. Do that + ;; without loading (srfi srfi-1) or anything. + (let ((extensions '((ungexp-native-splicing extensions))) + (prepend (lambda (items lst) + ;; This is O(N²) but N is typically small. + (let loop ((items items) + (lst lst)) + (if (null? items) + lst + (loop (cdr items) + (cons (car items) + (delete (car items) lst)))))))) + (set! %load-path + (prepend (cons (ungexp modules) + (map (lambda (extension) + (string-append extension + "/share/guile/site/" + (effective-version))) + extensions)) + %load-path)) + (set! %load-compiled-path + (prepend (cons (ungexp compiled) + (map (lambda (extension) + (string-append extension + "/lib/guile/" + (effective-version) + "/site-ccache")) + extensions)) + %load-compiled-path))))))))) (define* (gexp->script name exp #:key (guile (default-guile)) |