don't return a coderef if there was a parse error

it won't be a valid coderef, you'll just get an error if you try to call
it

1 files changed, 33 insertions, 0 deletions

diff --git a/t/error.t b/t/error.t
new file mode 100644
index 0000000..08a478a
--- /dev/null
+++ b/t/error.t
@@ -0,0 +1,33 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Test::More;
+
+my $got_code;
+BEGIN {
+    package My::Parser;
+    use Exporter 'import';
+    our @EXPORT = 'foo';
+    use Parse::Keyword { foo => \&parse_foo };
+
+    sub foo {}
+    sub parse_foo {
+        lex_read_space;
+        my $code = parse_block;
+        $got_code = $code ? 1 : 0;
+        return sub {};
+    }
+
+    $INC{'My/Parser.pm'} = __FILE__;
+}
+
+use My::Parser;
+
+eval "foo";
+ok($@);
+ok(!$got_code);
+eval "foo { }";
+ok(!$@);
+ok($got_code);
+
+done_testing;