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scansion/error.lua@0e2150680a25

scansion/error.lua

Sat, 29 Dec 2018 02:52:55 -0500

author

Waqas Hussain <waqas20@gmail.com>

date

Sat, 29 Dec 2018 02:52:55 -0500

changeset 163

0e2150680a25

parent 111

25530dccf696

permissions

-rw-r--r--

parser: Prefix parse errors with "ParserError: "

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;
};