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wait.lua error messages

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Posted by Fiendish   USA  (2,514 posts)  [Biography] bio   Global Moderator
Date Sun 30 Sep 2012 05:46 AM (UTC)

Amended on Sun 30 Sep 2012 06:39 AM (UTC) by Fiendish

Message
Because assertion errors are big and scary (and don't direct the uneducated user to a solution), I'm considering doing the following in my distribution of wait.lua:

 function make (f)
   assert (type (f) == "function", "wait.make requires a function")
-  assert (GetOption ("enable_timers") == 1, "Timers not enabled")
-  assert (GetOption ("enable_triggers") == 1, "Triggers not enabled")
+  local errors = {}
+  if GetOption("enable_timers") ~= 1 then
+    table.insert(errors, "TIMERS")
+  end
+  if GetOption("enable_triggers") ~= 1 then
+    table.insert(errors, "TRIGGERS")
+  end
+  if #errors ~= 0 then
+    ColourNote("white","red","One of your scripts (in '"..(GetPluginInfo(GetPluginID(), 1) or "World").."') just did something that requires "..table.concat(errors, " and ").." to be enabled, but they aren't. Please check your configuration settings.")
+    return -1
+  end
   coroutine.wrap (f) () -- make coroutine, resume it
+  return 0
 end -- make

What do you think?
https://github.com/fiendish/aardwolfclientpackage
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Posted by Nick Gammon   Australia  (22,982 posts)  [Biography] bio   Forum Administrator
Date Reply #1 on Sun 30 Sep 2012 06:20 AM (UTC)
Message
What is the return for? For checking somewhere else?
- Nick Gammon

www.gammon.com.au, www.mushclient.com
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Posted by Nick Gammon   Australia  (22,982 posts)  [Biography] bio   Forum Administrator
Date Reply #2 on Sun 30 Sep 2012 06:26 AM (UTC)
Message
How about returning nil on an error and true on OK, like other similar functions?
- Nick Gammon

www.gammon.com.au, www.mushclient.com
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Posted by Fiendish   USA  (2,514 posts)  [Biography] bio   Global Moderator
Date Reply #3 on Sun 30 Sep 2012 06:38 AM (UTC)
Message
Nick Gammon said:

What is the return for? For checking somewhere else?
Yes.

Nick Gammon said:

How about returning nil on an error and true on OK, like other similar functions?
That would also work.
https://github.com/fiendish/aardwolfclientpackage
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Posted by Nick Gammon   Australia  (22,982 posts)  [Biography] bio   Forum Administrator
Date Reply #4 on Sun 30 Sep 2012 06:39 AM (UTC)
Message
I like it. Incorporated in version 4.84 along with a few other fixes. Bad return will be nil, good return will be true.
- Nick Gammon

www.gammon.com.au, www.mushclient.com
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