每次打开Xcode 9.2都会从头开始重新索引，即使没有任何更改 [英] Xcode 9.2 is re-indexing from scratch each time I open it, even if nothing changed

问题描述

我有一个项目(大项目)，大约需要30分钟才能被Xcode索引.Xcode消耗了我3000％的CPU 100％.

I have a project (big project), that takes about 30 minutes to be indexed by Xcode. Xcode consumes 100% of my CPU for 30mn.

好吧，为什么不行，使用100％的CPU进行后台任务听起来有点不礼貌，但是为什么不呢?

OK why not, that sounds a bit rude to use 100% of the CPU for a background task, but why not.

现在，如果30分钟后，我退出Xcode，然后重新打开它，而又未触及项目的单个文件，它将再次开始索引30分钟.

Now, if after 30 minutes, I quit Xcode, and re-open it, without touching a single file of my project, it starts again to index for 30 minutes.

这是预期的行为吗?有办法解决吗?我不想关闭inedxing，我尝试了一下，并且代码完成是HS.

Is this the intended behaviour? Is there a way to fix it? I don't want to turn off inedxing, I tried it, and code completion is HS.

推荐答案

尝试将此标志添加到您的构建设置中.

Try adding this flag to your build settings.

Xfrontend -warn-long-expression-type-checking = 400

如果编译器需要较长时间来推导复杂的表达式，则会引起警告.

It will cause warning where the compiler take a long time to deduce a complex expression.

这可能会导致构建错误，当您找到慢速表达式然后删除构建标志后，该错误将会消失.

This may cause a build error which will go away after you find the slow expressions and then remove the build flag.

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