starwing

-- Helpers {{{1
local function fail_on_missing_tbl(t, missing_name)
    missing_name = missing_name or 'table entry'
    return setmetatable(t, {__index = function(t, k)
            error(('No %s with key "%s" (in %s).'):format(missing_name, k, t))
        end
    })
end

fail_on_missing_tbl(_G, 'global');