# HG changeset patch
# User jbe
# Date 1406771697 -7200
# Node ID ddb9b9b0d210a5e4c2f8d2c4412596683a4447ba
# Parent  d42a7a84035886ef379ed73590d6511679d1b1ce
Removed json.isnull function from JSON library (use json.type(...) == "null" instead)

diff -r d42a7a840358 -r ddb9b9b0d210 libraries/json/json.c
--- a/libraries/json/json.c	Thu Jul 31 03:49:43 2014 +0200
+++ b/libraries/json/json.c	Thu Jul 31 03:54:57 2014 +0200
@@ -545,21 +545,6 @@
   return json_path(L, 1);
 }
 
-// checks if a value in a JSON document (first argument) is
-// explicitly set to null:
-static int json_isnull(lua_State *L) {
-  const char *jsontype;
-  // call json_type function with variable arguments:
-  lua_pushcfunction(L, json_type);
-  lua_insert(L, 1);
-  lua_call(L, lua_gettop(L) - 1, 1);
-  // return true if result equals to string "null", otherwise return false:
-  jsontype = lua_tostring(L, -1);
-  if (jsontype && !strcmp(jsontype, "null")) lua_pushboolean(L, 1);
-  else lua_pushboolean(L, 0);
-  return 1;
-}
-
 // returns the length of a JSON array (or zero for a table without numeric keys):
 static int json_len(lua_State *L) {
   // stack shall contain one function argument:
@@ -832,7 +817,6 @@
   {"export", json_export},
   {"get", json_get},
   {"type", json_type},
-  {"isnull", json_isnull},
   {NULL, NULL}
 };