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scansion/error.lua@25530dccf696

scansion/error.lua

Mon, 10 Sep 2018 13:45:47 +0100

author

Matthew Wild <mwild1@gmail.com>

date

Mon, 10 Sep 2018 13:45:47 +0100

changeset 111

25530dccf696

parent 104

fb915f3a9c89

permissions

-rw-r--r--

scansion.error, client: Change error syntax slightly, so first param is identifier string

local error_mt = {
	__tostring = function (e)
		return tostring(e.text or e.type or ("<Scansion error: "..tostring(e)..">"));
	end;
	__name = "scansion error";
};

return {
	new_error = function (type, data)
		return setmetatable({ type = type, text = data.text, data = data }, error_mt);
	end;
	is = function (err)
		return getmetatable(err) == error_mt;
	end;
};