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[bug#58603] [PATCH 3/8] gnu: Add perl-readonly-xs.
From: |
EuAndreh |
Subject: |
[bug#58603] [PATCH 3/8] gnu: Add perl-readonly-xs. |
Date: |
Mon, 17 Oct 2022 22:38:13 -0300 |
* gnu/packages/perl.scm (perl-readonly-xs): New variable.
---
gnu/packages/perl.scm | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/gnu/packages/perl.scm b/gnu/packages/perl.scm
index 1146fecb6b..f5a8fad4d5 100644
--- a/gnu/packages/perl.scm
+++ b/gnu/packages/perl.scm
@@ -8854,6 +8854,38 @@ (define-public perl-readonly
variables that should not be changed.")
(license (package-license perl))))
+(define-public perl-readonly-xs
+ (package
+ (name "perl-readonly-xs")
+ (version "1.05")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append
+ "mirror://cpan/authors/id/R/RO/ROODE/Readonly-XS-" version
+ ".tar.gz"))
+ (sha256
+ (base32
+ "03gz7yp194fwah2bc36ww04hgw1qx8p6y68vvnywircrablc9rca"))))
+ (build-system perl-build-system)
+ (propagated-inputs (list perl-readonly))
+ (home-page "https://metacpan.org/release/Readonly-XS")
+ (synopsis "Companion module for @code{Readonly.pm}, to speed up read-only
+scalar variables")
+ (description
+ "The @code{Readonly} module is an effective way to create non-modifiable
+variables. However, it's relatively slow.
+
+The reason it's slow is that is implements the read-only-ness of variables via
+tied objects. This mechanism is inherently slow. Perl simply has to do a lot
+of work under the hood to make tied variables work.
+
+This module corrects the speed problem, at least with respect to scalar
+variables. When @code{Readonly::XS} is installed, @code{Readonly} uses it to
+access the internals of scalar variables. Instead of creating a scalar
variable
+object and tying it, @code{Readonly} simply flips the @code{SvREADONLY} bit in
+the scalar's @code{FLAGS} structure.")
+ (license license:perl-license)))
+
(define-public perl-ref-util-xs
(package
(name "perl-ref-util-xs")
--
2.38.0
- [bug#58603] [PATCH 0/8] Add perlcritic, EuAndreh, 2022/10/17
- [bug#58603] [PATCH 1/8] gnu: Add perl-config-tiny., EuAndreh, 2022/10/17
- [bug#58603] [PATCH 2/8] gnu: Add perl-pod-spell., EuAndreh, 2022/10/17
- [bug#58603] [PATCH 3/8] gnu: Add perl-readonly-xs.,
EuAndreh <=
- [bug#58603] [PATCH 4/8] gnu: Add perl-string-format., EuAndreh, 2022/10/17
- [bug#58603] [PATCH 5/8] gnu: Add perl-ppix-regexp., EuAndreh, 2022/10/17
- [bug#58603] [PATCH 6/8] gnu: Add perl-ppix-quotelike., EuAndreh, 2022/10/17
- [bug#58603] [PATCH 8/8] gnu: Add perl-critic., EuAndreh, 2022/10/17
- [bug#58603] [PATCH 7/8] gnu: Add perl-ppix-utilities., EuAndreh, 2022/10/17
- bug#58603: [PATCH 0/8] Add perlcritic, Christopher Baines, 2022/10/18