Adds support for Lua Int64 and UInt64 operators, functions, and general

usefulness, working around bug #9162 until Lua 5.3 is released.

The existing Int64 and UInt64 classes provide virtually no
usefullness, other than for creating a string of their value.  While
one could then write Lua code to convert the string to Lua numbers and
such, ultimately Lua has no native 64-bit integer support, making such
a task difficult to handle in Lua.  This change adds a host of
functions and operators to the existing Int64 (gint64) and UInt64
(guint64) classes, to enable true 64-bit integer support on par with
native Lua numbers.

A test script is also provided, which tests the functions/operators.

Change-Id: I4c5f8f5219b9a88198902283bd32ddf24c346bbe
Reviewed-on: https://code.wireshark.org/review/83
Tested-by: Evan Huus <eapache@gmail.com>
Reviewed-by: Evan Huus <eapache@gmail.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/epan/wslua/wslua_util.c b/epan/wslua/wslua_util.c
index cc89e99198..9e95d557f4 100644
--- a/epan/wslua/wslua_util.c
+++ b/epan/wslua/wslua_util.c
@@ -32,6 +32,19 @@
 #include <math.h>
 #include <epan/stat_cmd_args.h>
 
+
+WSLUA_API int wslua__concat(lua_State* L) {
+    /* Concatenate two objects to a string */
+    if (!luaL_callmeta(L,1,"__tostring"))
+        lua_pushvalue(L,1);
+    if (!luaL_callmeta(L,2,"__tostring"))
+        lua_pushvalue(L,2);
+
+    lua_concat(L,2);
+
+    return 1;
+}
+
 WSLUA_API gboolean wslua_optbool(lua_State* L, int n, gboolean def) {
     gboolean val = FALSE;