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| author | Eric Bavier <bavier@member.fsf.org> | 2015-03-05 16:32:00 -0600 |
|---|---|---|
| committer | Eric Bavier <bavier@member.fsf.org> | 2015-03-06 08:13:28 -0600 |
| commit | 8bc9515d9bdd8c854024d6b60a59692ecfcbd77f (patch) | |
| tree | 0c43279abb522713d0be50c98ffb469f567fb86f | |
| parent | 4400eb95e473386c16e546978236430735712b9d (diff) | |
gnu: Add Eval-Closure.
* gnu/packages/perl.scm (perl-eval-closure): New variable.
| -rw-r--r-- | gnu/packages/perl.scm | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gnu/packages/perl.scm b/gnu/packages/perl.scm index a50927aff1..0911c70e8c 100644 --- a/gnu/packages/perl.scm +++ b/gnu/packages/perl.scm @@ -485,6 +485,38 @@ SHA-1 message digest algorithm for use by Perl programs.") modules separately and deal with them after the module is done installing.") (license (package-license perl)))) +(define-public perl-eval-closure + (package + (name "perl-eval-closure") + (version "0.12") + (source + (origin + (method url-fetch) + (uri (string-append "mirror://cpan/authors/id/D/DO/DOY/" + "Eval-Closure-" version ".tar.gz")) + (sha256 + (base32 + "0ssvlgx3y1y28wrrp0lmmffzqxfrwb2lb3p60b8cjvxsf1c3jbfv")))) + (build-system perl-build-system) + (native-inputs + `(("perl-test-fatal" ,perl-test-fatal) + ("perl-test-requires" ,perl-test-requires))) + (propagated-inputs + `(("perl-devel-lexalias" ,perl-devel-lexalias))) + (home-page "http://search.cpan.org/dist/Eval-Closure") + (synopsis "Safely and cleanly create closures via string eval") + (description "String eval is often used for dynamic code generation. For +instance, Moose uses it heavily, to generate inlined versions of accessors and +constructors, which speeds code up at runtime by a significant amount. String +eval is not without its issues however - it's difficult to control the scope +it's used in (which determines which variables are in scope inside the eval), +and it's easy to miss compilation errors, since eval catches them and sticks +them in $@ instead. This module attempts to solve these problems. It +provides an eval_closure function, which evals a string in a clean +environment, other than a fixed list of specified variables. Compilation +errors are rethrown automatically.") + (license (package-license perl)))) + (define-public perl-exporter-lite (package (name "perl-exporter-lite") |