TableFindBug.lua

local function readonly(_table)
	return setmetatable(_table, {
		__index = function(self, index)
			error(("Bad index %q"):format(tostring(index)), 2)
		end;
		__newindex = function(self, index, value)
			error(("Bad index %q"):format(tostring(index)), 2)
		end;
	})
end

--- Returns whether `value` is within `table`
-- @tparam table table to search in for value
-- @param value Value to search for
-- @treturn boolean `true` if within, `false` otherwise
local function contains(_table, value)
	for _, item in pairs(_table) do
		if item == value then
			return true
		end
	end

	return false
end

local weatherTypes = readonly({
	DYNAMIC = "dynamic";
	SNOW = "snow";
	RAIN = "rain";
	NONE = "none";
})


print(table.find(weatherTypes, "rain")) --> nil
print(contains(weatherTypes, "rain")) --> true