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serialization: Use ‘bytevector-slice’ from Guile >= 3.0.9.

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* guix/serialization.scm (sub-bytevector): Remove.
(read-byte-string): Use ‘bytevector-slice’.
* configure.ac: Require Guile 3.0.9.
* doc/contributing.texi (Requirements): Adjust accordingly.

Change-Id: I7aa11a2182530ea5131be591db03b17efb6847a4
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Merges: #4495
This commit is contained in:
Ludovic Courtès
2025-11-26 10:07:55 +01:00
parent ab72a155c6
commit 40c24a92af
3 changed files with 6 additions and 16 deletions
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5
configure.ac
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@@ -2,7 +2,7 @@
# Process this file with autoconf to produce a configure script.
#
# GNU Guix --- Functional package management for GNU
# Copyright © 2012-2021, 2022-2023 Ludovic Courtès <ludo@gnu.org>
# Copyright © 2012-2021, 2022-2023, 2025 Ludovic Courtès <ludo@gnu.org>
# Copyright © 2013, 2016 Mark H Weaver <mhw@netris.org>
# Copyright © 2014-2016 Alex Kost <alezost@gmail.com>
# Copyright © 2014-2016 David Thompson <davet@gnu.org>
@@ -130,7 +130,8 @@ if test "x$GUILD" = "x"; then
fi
dnl (guix ui), notably, requires 'default-optimization-level' added in 3.0.3.
PKG_CHECK_MODULES([GUILE], [guile-3.0 >= 3.0.3])
dnl (guix serialization) requires 'bytevector-slice' added in 3.0.9.
PKG_CHECK_MODULES([GUILE], [guile-3.0 >= 3.0.9])
dnl Get CFLAGS and LDFLAGS for libguile.
GUILE_FLAGS

2
doc/contributing.texi
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@@ -66,7 +66,7 @@ GNU Guix depends on the following packages:
@itemize
@item @url{https://gnu.org/software/guile/, GNU Guile}, version 3.0.x,
version 3.0.3 or later;
version 3.0.9 or later;
@item @url{https://notabug.org/cwebber/guile-gcrypt, Guile-Gcrypt}, version
0.1.0 or later;
@item

15
guix/serialization.scm
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@@ -20,6 +20,7 @@
#:autoload (guix base16) (base16-string->bytevector
bytevector->base16-string)
#:use-module (rnrs bytevectors)
#:autoload (rnrs bytevectors gnu) (bytevector-slice)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-26)
@@ -29,7 +30,6 @@
#:use-module ((ice-9 rdelim) #:prefix rdelim:)
#:use-module (ice-9 match)
#:use-module (ice-9 ftw)
#:use-module (system foreign)
#:export (write-value
read-value
write-bytevector
@@ -106,17 +106,6 @@
(port port)))))
bv))
(define (sub-bytevector bv len)
"Return a bytevector that aliases the first LEN bytes of BV."
(define max (bytevector-length bv))
(cond ((= len max) bv)
((< len max)
;; Yes, this is safe because the result of each conversion procedure
;; has its life cycle synchronized with that of its argument.
(pointer->bytevector (bytevector->pointer bv) len))
(else
(error "sub-bytevector called to get a super bytevector"))))
(define (write-int n p)
(let ((b (make-bytevector 8 0)))
(bytevector-u32-set! b 0 n (endianness little))
@@ -164,7 +153,7 @@
(m (modulo len 8))
(pad (if (zero? m) 0 (- 8 m)))
(bv (get-bytevector-n* p (+ len pad))))
(sub-bytevector bv len)))
(bytevector-slice bv 0 len)))
(define (read-string p)
(utf8->string (read-byte-string p)))