英语语法分析

This article will not discuss the AST in any detail here, except to say that when the extension needs to add new elements to the generated source it does so by calling methods on the AST objects.

本文在这里并不讨论关于AST的任何细节，除非当扩展需要向生成的代码添加新元素时，才会涉及到一些。通过访问AST的方法来做到这一点。

AST nodes take care of things such as binding names to definitions, overload resolution and error checking.

AST节点负责一些例如，绑定定义与名称，分辨重载，错误检查这样的事情。

One necessity for making code tools is the AST, to analyze source.

制造代码工具一个必须的东西是AST，用来分析源码。