Make get_linestr return NULL/undef if we aren't parsing.

diff --git a/Declare.xs b/Declare.xs
index 3b8c5dd..69dd632 100644 (file)
--- a/Declare.xs
+++ b/Declare.xs
@@ -103,6 +103,9 @@ void dd_linestr_callback (pTHX_ char* type, char* name) {
 }
 
 char* dd_get_linestr(pTHX) {
+  if (!DD_HAVE_PARSER) {
+    return NULL;
+  }
   return SvPVX(PL_linestr);
 }