Name: perl-Try-Tiny Version: 0.31 Release: 1 License: MIT Summary: Minimal try/catch with proper preservation of $@ Url: https://metacpan.org/pod/Try::Tiny Group: Development/Libraries Source0: %{name}-%{version}.tar.gz Source1001: perl-Try-Tiny.manifest BuildRequires: perl BuildRequires: perl(MIME::Base64) %description This module provides bare bones try/catch/finally statements that are designed to minimize common mistakes with eval blocks, and NOTHING else. This is unlike TryCatch which provides a nice syntax and avoids adding another call stack layer, and supports calling return from the try block to return from the parent subroutine. These extra features come at a cost of a few dependencies, namely Devel::Declare and Scope::Upper which are occasionally problematic, and the additional catch filtering uses Moose type constraints which may not be desirable either. The main focus of this module is to provide simple and reliable error handling for those having a hard time installing TryCatch, but who still want to write correct eval blocks without 5 lines of boilerplate each time. It's designed to work as correctly as possible in light of the various pathological edge cases (see "BACKGROUND") and to be compatible with any style of error values (simple strings, references, objects, overloaded objects, etc). If the try block dies, it returns the value of the last statement executed in the catch block, if there is one. Otherwise, it returns undef in scalar context or the empty list in list context. The following examples all assign "bar" to $x: my $x = try { die "foo" } catch { "bar" }; my $x = try { die "foo" } || "bar"; my $x = (try { die "foo" }) // "bar"; my $x = eval { die "foo" } || "bar"; You can add finally blocks, yielding the following: my $x; try { die 'foo' } finally { $x = 'bar' }; try { die 'foo' } catch { warn "Got a die: $_" } finally { $x = 'bar' }; finally blocks are always executed making them suitable for cleanup code which cannot be handled using local. You can add as many finally blocks to a given try block as you like. Note that adding a finally block without a preceding catch block suppresses any errors. This behaviour is consistent with using a standalone eval, but it is not consistent with try/finally patterns found in other programming languages, such as Java, Python, Javascript or C#. If you learned the try/finally pattern from one of these languages, watch out for this. %prep %setup -q -n %{name}-%{version} cp %{SOURCE1001} . %build perl Makefile.PL INSTALLDIRS=vendor make %{?_smp_mflags} %install %perl_make_install %perl_process_packlist %perl_gen_filelist %files -f %{name}.files %license LICENCE