From: Jesse Luehrs Date: Tue, 2 Aug 2011 06:15:43 +0000 (-0500) Subject: but... that breaks memoization, so disable that for now X-Git-Tag: 0.07~4 X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=fa28785153da58de0024597ef6f360c9382aa478;p=gitmo%2FEval-Closure.git but... that breaks memoization, so disable that for now --- diff --git a/lib/Eval/Closure.pm b/lib/Eval/Closure.pm index 42c20da..4a39ed2 100644 --- a/lib/Eval/Closure.pm +++ b/lib/Eval/Closure.pm @@ -36,16 +36,11 @@ String eval is often used for dynamic code generation. For instance, C 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 can be -quite slow, especially if doing a large number of evals. +(which determines which variables are in scope inside the eval). -This module attempts to solve both of those problems. It provides an -C function, which evals a string in a clean environment, other -than a fixed list of specified variables. It also caches the result of the -eval, so that doing repeated evals of the same source, even with a different -environment, will be much faster (but note that the description is part of the -string to be evaled, so it must also be the same (or non-existent) if caching -is to work properly). +This module attempts to solve this problem. It provides an C +function, which evals a string in a clean environment, other than a fixed list +of specified variables. =cut @@ -193,18 +188,10 @@ sub _clean_eval_closure { return ($code, $e); } -{ - my %compiler_cache; +sub _make_compiler { + my $source = _make_compiler_source(@_); - sub _make_compiler { - my $source = _make_compiler_source(@_); - - unless (exists $compiler_cache{$source}) { - $compiler_cache{$source} = _clean_eval($source); - } - - return @{ $compiler_cache{$source} }; - } + return @{ _clean_eval($source) }; } $Eval::Closure::SANDBOX_ID = 0; diff --git a/t/compiling-package.t b/t/compiling-package.t index 09b4d0b..fa27d0e 100644 --- a/t/compiling-package.t +++ b/t/compiling-package.t @@ -31,4 +31,14 @@ use Eval::Closure; is($c2->(), -2); } +{ + my $source = 'no strict "vars"; sub { ++$foo }'; + my $c1 = eval_closure(source => $source); + my $c2 = eval_closure(source => $source); + is($c1->(), 1); + is($c1->(), 2); + is($c2->(), 1); + is($c2->(), 2); +} + done_testing; diff --git a/t/memoize.t b/t/memoize.t index 02fd11f..b012596 100644 --- a/t/memoize.t +++ b/t/memoize.t @@ -7,6 +7,12 @@ use Test::Requires 'Test::Output'; use Eval::Closure; +# XXX this whole test isn't very useful anymore, since we no longer do +# memoization. it would be nice to bring it back at some point though, if there +# was a way to do this without breaking the other tests + +plan skip_all => "disabling this test for now"; + { my $source = 'BEGIN { warn "foo\n" } sub { $foo * 2 }';