[cfe-dev] [clangd] Newcomers guide

Eric Liu via cfe-dev cfe-dev at lists.llvm.org
Tue Jul 31 02:52:31 PDT 2018

+clangd-dev at lists.llvm.org <clangd-dev at lists.llvm.org>

Hi Balogh, welcome to clangd! ;)

On Tue, Jul 31, 2018 at 9:46 AM Balogh Tamas via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> Hello everyone,
> I try to explore clangd, especially clangd - jump to definition but I am
> bit stuck. I don’t know how to start it.

> As far as I know for this feature I need to start clangd with a special
> ‘index.yml’ file, how can I generate it?
Note that the yaml symbol table is experimental only, but if you want to
try it out, you can use global-symbol-builder
generate the yaml symbol table. Eventually, we would like to switch to
index-while-build (when it's landed) as a source of clangd symbol data.

> When clangd is running can I change this yml file? Can clangd dynamically
> reload it?
Currently, the static index (e.g. yaml index on a codebase) is only loaded
once in the beginning of a clangd instance. The assumption was that clangd
instance is restarted more frequently than the updates of static index.
clangd also has dynamic index which indexes the open/active files in a
clangd session and acts as an overlay on top of the possibly stale static
index. But I can see how reloading static index in clangd can be useful,
especially when we have index-while-build in the future.

I'm interested in your use case for reloading static index. Would you mind
elaborating it a bit?


> In default how can I send a request to it?
> These are basic questions I know but I didn’t find a detailed
> documentation for newcomers, so I am really appreciate for any comment. :)
> Thank you!
> Best regards,
> Tamas
> _______________________________________________
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> cfe-dev at lists.llvm.org
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