if there are no productions for a function, don't create PgfConcrLin at all

2021-12-14 10:15:32 +01:00
parent 77693dca3e
commit cbcbbc9134
1 changed files with 3 additions and 0 deletions
--- a/src/runtime/c/pgf/pgf.cxx
+++ b/src/runtime/c/pgf/pgf.cxx
@@ -1934,6 +1934,9 @@ void pgf_create_lin(PgfDB *db,
                    PgfBuildLinIface *build,
                    PgfExn *err)
 {
+    if (n_prods == 0)
+        return;
+
    PGF_API_BEGIN {
        DB_scope scope(db, WRITER_SCOPE);