set more flags correctly

diff --git a/src/lib/unlang/xlat_tokenize.c b/src/lib/unlang/xlat_tokenize.c
index c7442b86914c818406cb72e7efb9228f4038de3a..8d8082f0d3194b23804168dca6fe6fd2737ef4d5 100644 (file)
--- a/src/lib/unlang/xlat_tokenize.c
+++ b/src/lib/unlang/xlat_tokenize.c
@@ -379,6 +379,13 @@ static inline int xlat_tokenize_function_mono(xlat_exp_head_t *head,
        }
 
        xlat_flags_merge(&node->flags, &node->call.args->flags);
+
+       if (!func) {
+               node->flags.can_purify = node->call.args->flags.can_purify;
+       } else {
+               node->flags.can_purify = (node->call.func->flags.pure && node->call.args->flags.pure) | node->call.args->flags.can_purify;
+       }
+
        xlat_exp_insert_tail(head, node);
 
        return 0;