ilya-biryukov marked 2 inline comments as done.
ilya-biryukov added inline comments.


================
Comment at: clangd/TUScheduler.cpp:379
+
+    if (DiagsWereReported) {
       // Take a shortcut and don't build the AST if neither the inputs nor the
----------------
ilya-biryukov wrote:
> ioeric wrote:
> > The implicit condition here is that we can reuse AST and diagnostics were 
> > not reported. I think we can be more explicit here by moving this early 
> > return into the `CanReuseAST` if branch. By doing this, we could also get 
> > rid of `PrevDiagsWereReported`. An additional state variable seems to have 
> > made the flow less clear.
> The problem with that would be that the value of `DiagsWereReported` would be 
> stale for ~40 lines between the assignment to `FileInputs` and this point.
> So I'm not sure about this trade-off. WDYT?
Update after chatting offline: we agreed to keep the `PrevDiagsWereReported` 
and move the early return into the original if branch to make the dependencies 
between DiagsWereReported and CanReuseAST more explicit. This comment should be 
done now.


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D50045



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