scansion/error.lua@fb915f3a9c89
scansion/error.lua
Mon, 10 Sep 2018 09:52:08 +0100
- author
- Matthew Wild <mwild1@gmail.com>
- date
- Mon, 10 Sep 2018 09:52:08 +0100
- changeset 104
- fb915f3a9c89
- parent 64
- f0a1f82b8e04
- child 111
- 25530dccf696
- permissions
- -rw-r--r--
scansion.error: Add __name and is() for identifying scansion errors
local error_mt = { __tostring = function (e) return tostring(e.message or ("<Scansion error: "..tostring(self)..">")); end; __name = "scansion error"; }; return { new_error = function (message, data) return setmetatable({ message = message, data = data }, error_mt); end; is = function (err) return getmetatable(err) == error_mt; end; };
