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utils: 'current-source-directory' is now purely an expansion-time thing. 

* guix/utils.scm (extract-directory): Remove.
(current-source-directory): Rewrite as a 'syntax-case' macro.
master
Ludovic Courtès 2016-06-16 22:05:10 +02:00
parent 762e54b7b4
commit 5dbae738f0
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1 changed files with 10 additions and 12 deletions
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guix/utils.scm
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@ -702,18 +702,16 @@ output port, and PROC's result is returned."
;;; Source location. ;;; Source location.
;;; ;;;
(define (extract-directory properties) (define-syntax current-source-directory
"Extract the directory name from source location PROPERTIES." (lambda (s)
(match (assq 'filename properties) "Return the current directory name or #f if it could not be determined."
(('filename . (? string? file-name)) (syntax-case s ()
(dirname file-name)) ((_)
(_ (match (assq 'filename (syntax-source s))
#f))) (('filename . (? string? file-name))
(dirname file-name))
(define-syntax-rule (current-source-directory) (_
"Expand to the directory of the current source file or #f if it could not #f))))))
be determined."
(extract-directory (current-source-location)))
;; A source location. ;; A source location.
(define-record-type <location> (define-record-type <location>