SYNOPSIS use Try::Tiny; use Try::Tiny::Warnings; { package Foo; use warnings; sub bar { 1 + shift } } Foo::bar(); # warn # makes 'warn' behave like 'die' try_fatal_warnings { Foo::bar(); } catch { print "tsk, got $_"; }; # warnings are captured and passed # to 'catch_warnings' try_warnings { Foo::bar(); warn "some more"; } catch { print "won't be printed\n"; } catch_warnings { print "we warned with: $_" for @_; }; DESCRIPTION Try::Tiny::Warnings adds a few keywords to Try::Tiny to deal with warnings. The first keyword, try_fatal_warnings, behaves like try, excepts that it also makes any warn() within its block behave like die(). If the block dies because of such a fatalized warn, it'll be catched in the usual way. try_fatal_warnings { warn "uh oh"; } catch { print $_; # prints 'uh oh' }; The two other keywords are meant to be used together. try_warnings also behaves like try, but also capture all warnings issued within the block. The captured warnings will be passed to catch_warnings, which is a specialized finally block. Just like regular finally blocks, many catch_warnings blocks can be used if you so desire. try_warnings { warn "oops!"; $x = 4; } finally { $y = $x + 3; } catch_warnings { # percolate up non-silly warnings warn for grep { !/oops/ } @_; }; Note that using catch_warnings with try_fatal_warnings is pointless. Also, because catch_warnings is a finally in disguise, it has to come after the regular catch clause.