我平时的工作内容是开发在服务端上运行的网络程序，主要语言是 C++，并且几乎全部跑在统一的机器环境上。所以我们一直以来都在使用一套简单从 blade-build 魔改来的编译系统。这个系统的本质是一个 Unix Makefile 的生成器，这个生成器使用 Python2 编写，代码有点难以维护。（毕竟使用动态语言的东西就是这样，出活还是很快的，但是时间一长了，代码就变的很难维护。因为后来的人，很难完全理解其中每个变量的类型，这对于我这种长期写静态强类型语言的人来说，是很痛苦的。）
A shallow module is one whose interface is complicated relative to the functionality it provides. Shallow modules don’t help much in the battle against complexity, because the benefit they provide (not having to learn about how they work internally) is negated by the cost of learning and using their interfaces. Small modules tend to be shallow.
Information leakage occurs when the same knownledge is used in multiple places, such as two different classed that both understand the format of a particular type of file.
