[cfe-dev] RFC: Adding index-while-building support to Clang

[Manuel Klimek via cfe-dev]

Hi, thanks for the details design, I'm really looking forward for having
this :)

On a high level, I think this all makes lots of sense.
I have one question about how things get deleted: will record files for
headers be deleted at some point, or will they be kept around, and you have
to look at all unit files to see whether a given record file is still valid?

Cheers,
/Manuel


On Tue, Aug 29, 2017 at 2:18 AM Nathan Hawes <nhawes at apple.com> wrote:

> Hey everyone,
>
> Xcode 9 shipped with index-while-building functionality based on
> enhancements to Clang that we’d like to upstream. Key among them is a new
> option, -index-store-path, that in addition to Clang's usual outputs,
> causes it to write out indexing data at the supplied path with minimal
> overhead.
>
> While the current implementation is available at
> https://github.com/apple/swift-clang, we’d like to start by getting
> feedback on the high-level design, which you can read about here:
> https://docs.google.com/document/d/1cH2sTpgSnJZCkZtJl1aY-rzy4uGPcrI-6RrUpdATO2Q/edit?usp=sharing
>
> Please let us know of any concerns, comments or questions you have
> regarding this feature.
>
> Thanks!
> Nathan
>
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