kadircet accepted this revision.
kadircet added a comment.
This revision is now accepted and ready to land.

thanks, lgtm!



================
Comment at: clang-tools-extra/clangd/ClangdServer.h:153
+    /// to cancel. Clients that always cancel stale requests should clear this.
+    bool ImplicitCancellation = true;
+
----------------
sammccall wrote:
> kadircet wrote:
> > this makes sense as is, but i wonder if we should lift this to LSPServer 
> > instead.
> > 
> > 3.17 specs also introduce `retryOnContentModified`, which is supposed to be 
> > a list of RPC names. so if we decide to take that into account, rather than 
> > deciding on what's "transient" ourselves, having all of this hardcoded in 
> > clangdserver would be limiting. 
> > 
> > We can accept a cancellation policy on all of the ClangdServer endpoints, 
> > have some sensible defaults in clangdlspserver, enable those to be 
> > overwritten by client specs on initialize. (or if we don't want to make 
> > them part of the signature i suppose we can make use of config/context, but 
> > ... yikes). WDYT?
> I thought about this, but I don't think it's better...
> 
>  - it's complicated and boilerplatey with the method names, way out of 
> proportion to the value here
>  - I think "will the client take care of cancellation" is actually the more 
> pertinent question rather than "will the client retry if we cancel"
>  - we want to disable this (entirely) in C++ embedders, and a boolean option 
> is the simplest way to do that.
> we want to disable this (entirely) in C++ embedders, and a boolean option is 
> the simplest way to do that.

i think it should be okay for embedders to specify what behavior they want per 
action, but i agree with the other two points. thanks for the explanation!


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D98414/new/

https://reviews.llvm.org/D98414

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