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authorLudovic Courtès <ludo@gnu.org>2017-06-25 15:33:58 +0200
committerLudovic Courtès <ludo@gnu.org>2018-12-19 23:52:24 +0100
commitb334674fe5e99209e4f726e0d692ffa6bab9d6a1 (patch)
tree7c60a860deb01f6456eba2fdb8bc44c8a51ec564 /guix
parent73b0ebdd5e3bdda378d354e7388a56dd33da6225 (diff)
Use 'mapm' instead of 'sequence' + 'map'.
Previously we'd use the (sequence M (map P L)) idiom just because 'mapm' was slower (not specialized for the given monad). This is no longer the case since commit dcb95c1fc936d74dfdf84b7e59eff66cb99c5a63. * guix/gexp.scm (lower-inputs): Use (mapm M P L) instead of (sequence M (map P L)). (lower-references, gexp->sexp, imported-files): Likewise. * guix/profiles.scm (profile-derivation): Likewise. * guix/scripts/environment.scm (inputs->requisites): Likewise. * guix/scripts/system.scm (copy-closure): Likewise.
Diffstat (limited to 'guix')
-rw-r--r--guix/gexp.scm45
-rw-r--r--guix/profiles.scm8
-rw-r--r--guix/scripts/environment.scm4
3 files changed, 28 insertions, 29 deletions
diff --git a/guix/gexp.scm b/guix/gexp.scm
index fd3b6be348..88cabc8ed5 100644
--- a/guix/gexp.scm
+++ b/guix/gexp.scm
@@ -566,15 +566,15 @@ list."
corresponding input list as a monadic value. When TARGET is true, use it as
the cross-compilation target triplet."
(with-monad %store-monad
- (sequence %store-monad
- (map (match-lambda
- (((? struct? thing) sub-drv ...)
- (mlet %store-monad ((drv (lower-object
- thing system #:target target)))
- (return `(,drv ,@sub-drv))))
- (input
- (return input)))
- inputs))))
+ (mapm %store-monad
+ (match-lambda
+ (((? struct? thing) sub-drv ...)
+ (mlet %store-monad ((drv (lower-object
+ thing system #:target target)))
+ (return `(,drv ,@sub-drv))))
+ (input
+ (return input)))
+ inputs)))
(define* (lower-reference-graphs graphs #:key system target)
"Given GRAPHS, a list of (FILE-NAME INPUT ...) lists for use as a
@@ -606,7 +606,7 @@ names and file names suitable for the #:allowed-references argument to
#:target target)))
(return (derivation->output-path drv))))))
- (sequence %store-monad (map lower lst))))
+ (mapm %store-monad lower lst)))
(define default-guile-derivation
;; Here we break the abstraction by talking to the higher-level layer.
@@ -880,15 +880,15 @@ and in the current monad setting (system type, etc.)"
#:system system
#:target (if (or n? native?) #f target)))
(($ <gexp-input> (refs ...) output n?)
- (sequence %store-monad
- (map (lambda (ref)
- ;; XXX: Automatically convert REF to an gexp-input.
- (reference->sexp
- (if (gexp-input? ref)
- ref
- (%gexp-input ref "out" n?))
- (or n? native?)))
- refs)))
+ (mapm %store-monad
+ (lambda (ref)
+ ;; XXX: Automatically convert REF to an gexp-input.
+ (reference->sexp
+ (if (gexp-input? ref)
+ ref
+ (%gexp-input ref "out" n?))
+ (or n? native?)))
+ refs))
(($ <gexp-input> (? struct? thing) output n?)
(let ((target (if (or n? native?) #f target))
(expand (lookup-expander thing)))
@@ -902,8 +902,8 @@ and in the current monad setting (system type, etc.)"
(return x)))))
(mlet %store-monad
- ((args (sequence %store-monad
- (map reference->sexp (gexp-references exp)))))
+ ((args (mapm %store-monad
+ reference->sexp (gexp-references exp))))
(return (apply (gexp-proc exp) args))))
(define (syntax-location-string s)
@@ -1117,8 +1117,7 @@ to the source files instead of copying them."
(mlet %store-monad ((file (lower-object file-like system)))
(return (list final-path file))))))
- (mlet %store-monad ((files (sequence %store-monad
- (map file-pair files))))
+ (mlet %store-monad ((files (mapm %store-monad file-pair files)))
(define build
(gexp
(begin
diff --git a/guix/profiles.scm b/guix/profiles.scm
index 6d5da0ac4c..8142e5e8e2 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -1383,10 +1383,10 @@ are cross-built for TARGET."
#:target target)))
(extras (if (null? (manifest-entries manifest))
(return '())
- (sequence %store-monad
- (map (lambda (hook)
- (hook manifest))
- hooks)))))
+ (mapm %store-monad
+ (lambda (hook)
+ (hook manifest))
+ hooks))))
(define inputs
(append (filter-map (lambda (drv)
(and (derivation? drv)
diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index 7733fbcae4..86e1eb115f 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -374,8 +374,8 @@ requisite store items i.e. the union closure of all the inputs."
((? direct-store-path? path)
(list path)))))
- (mlet %store-monad ((reqs (sequence %store-monad
- (map input->requisites inputs))))
+ (mlet %store-monad ((reqs (mapm %store-monad
+ input->requisites inputs)))
(return (delete-duplicates (concatenate reqs)))))
(define (status->exit-code status)