-- https://github.com/Tjakka5/Enum

local Enum = {}
local Meta = {
    __index = function(_, k)
        error("Attempt to index non-existant enum '" .. tostring(k) .. "'.", 2)
    end,
    __newindex = function()
        error("Attempt to write to static enum", 2)
    end,
}

function Enum.new(...)
    local values = {...}

    if type(values[1]) == "table" then
        values = values[1]
    end

    local enum = {}

    for i = 1, #values do
        enum[values[i]] = values[i]
    end

    return setmetatable(enum, Meta)
end

return setmetatable(Enum, {
    __call = function(_, ...)
        return Enum.new(...)
    end,
})