From: Stephen Dolan <mu@netsoc.tcd.ie>
Date: Sun, 16 Dec 2012 13:10:48 +0000 (+0000)
Subject: Fix a bug uncovered by tests extracted from manual.
X-Git-Tag: jq-1.2~10
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=3ae8fb7371085f7507de6324c391c9953fc638e3;p=jq

Fix a bug uncovered by tests extracted from manual.

`null | length` should give 0, and now does.
---

diff --git a/builtin.c b/builtin.c
index f046e91..4f9fab5 100644
--- a/builtin.c
+++ b/builtin.c
@@ -191,6 +191,9 @@ static jv f_length(jv input) {
     return jv_number(jv_object_length(input));
   } else if (jv_get_kind(input) == JV_KIND_STRING) {
     return jv_number(jv_string_length(input));
+  } else if (jv_get_kind(input) == JV_KIND_NULL) {
+    jv_free(input);
+    return jv_number(0);
   } else {
     return type_error(input, "has no length");
   }