gistfile1.lua

styx = {}

styx.lang = {}

styx.lang.try_catch = function(body, catch)
    success, result = pcall(body)
    if success then
        return result
    else
        return catch(result.exception)
    end
end

styx.lang.try_finally = function(body, finally)
    success, result = pcall(body)
    finally()
    if success then
        return result
    else
        error(result)
    end
end

styx.lang.throw = function(exception)
    error({ exception=exception })
end