App::REPL -> Reply

1 files changed, 31 insertions, 0 deletions

diff --git a/lib/Reply/Plugin/LexicalPersistence.pm b/lib/Reply/Plugin/LexicalPersistence.pm
new file mode 100644
index 0000000..0540f96
--- /dev/null
+++ b/lib/Reply/Plugin/LexicalPersistence.pm
@@ -0,0 +1,31 @@
+package Reply::Plugin::LexicalPersistence;
+use strict;
+use warnings;
+
+use base 'Reply::Plugin';
+
+use Lexical::Persistence;
+
+sub new {
+    my $class = shift;
+    my $self = $class->SUPER::new(@_);
+    $self->{env} = Lexical::Persistence->new;
+    return $self;
+}
+
+sub compile {
+    my $self = shift;
+    my ($next, $line, %args) = @_;
+
+    my %c = %{ $self->{env}->get_context('_') };
+
+    $args{environment} ||= {};
+    $args{environment} = {
+        %{ $args{environment} },
+        (map { $_ => ref($c{$_}) ? $c{$_} : \$c{$_} } keys %c),
+    };
+    my ($code) = $next->($line, %args);
+    return $self->{env}->wrap($code);
+}
+
+1;