Early versions of the binding compiler did not go through this step of constructing a code generation model, instead generating code directly from the binding.

绑定编译器的早期版本不经历构造代码生成模型这一步，而是直接从绑定生成代码。

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When optimizing SQL queries, the decisions made by the SQL compiler are heavily influenced by the optimizer's model of the database contents.

当对 SQL 查询进行优化时，SQL 编译器所做出的决定会受到优化器的数据库内容模型的重大影响。

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The AST is a tree representation of the parsed source code, created by the compiler, similar to the DOM tree model of an XML file.

AST 代表已解析源代码的树，它由编译器创建，与 XML 文件的 DOM 树模型类似。

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