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gexp: 'ungexp-splicing' properly accounts for nested native inputs.

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Previously, (gexp-native-inputs #~#$@(list #~#+foo)) would return '().

This is a followup to 5b14a7902c.

* guix/gexp.scm (gexp-inputs)[add-reference-inputs]: In the list case,
remove 'if' around 'fold-right'.  In 'map' lambda, always inherit N?.
* tests/gexp.scm ("gexp list splicing + ungexp-splicing"): New test.
This commit is contained in:
Ludovic Courtès 2017-07-17 23:21:55 +02:00
parent 1cbcbc8600
commit 578dfbe07b
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GPG key ID: 090B11993D9AEBB5
2 changed files with 19 additions and 9 deletions
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20
guix/gexp.scm
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@ -706,15 +706,17 @@ (define (add-reference-inputs ref result)
(cons `(,thing ,output) result)
result))
(($ <gexp-input> (lst ...) output n?)
(if (eqv? native? n?)
(fold-right add-reference-inputs result
;; XXX: For now, automatically convert LST to a list of
;; gexp-inputs.
(map (match-lambda
((? gexp-input? x) x)
(x (%gexp-input x "out" (or n? native?))))
lst))
result))
(fold-right add-reference-inputs result
;; XXX: For now, automatically convert LST to a list of
;; gexp-inputs. Inherit N?.
(map (match-lambda
((? gexp-input? x)
(%gexp-input (gexp-input-thing x)
(gexp-input-output x)
n?))
(x
(%gexp-input x "out" n?)))
lst)))
(_
;; Ignore references to other kinds of objects.
result)))

8
tests/gexp.scm
View file

@ -355,6 +355,14 @@ (define (match-input thing)
(equal? (gexp->sexp* exp) ;native
(gexp->sexp* exp "mips64el-linux")))))
(test-assert "gexp list splicing + ungexp-splicing"
(let* ((inner (gexp (ungexp-native glibc)))
(exp (gexp (list (ungexp-splicing (list inner))))))
(and (equal? `((,glibc "out")) (gexp-native-inputs exp))
(null? (gexp-inputs exp))
(equal? (gexp->sexp* exp) ;native
(gexp->sexp* exp "mips64el-linux")))))
(test-equal "output list"
2
(let ((exp (gexp (begin (mkdir (ungexp output))