为什么编译需要这么长时间？ [英] Why do compilations take so long?

问题描述

我正在设计一个编程语言，我想到的问题之一是为什么编程语言需要很长时间来编译。假设的c ++需要很长时间，因为它需要在每次编译头文件时解析和编译头文件。但是我的预编译头需要多长时间？我怀疑c ++不是唯一有这个问题的语言。

I am designing a programming language and one of the problems i was thinking was why do programming languages take long to compile. Assumed c++ takes a long time because it needs to parse and compile a header everytime it compiles a file. But i -heard- precompiled headers take as long? i suspect c++ is not the only language that has this problem.

推荐答案

一个C ++的具体问题，不像几乎任何其他语言，你不能独立于语义分析来解析它。

One C++ specific problem that makes it horribly slow is that, unlike almost any other language, you can't parse it independently of semantic analysis.

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