joerg added inline comments.

================
Comment at: lib/Tooling/JSONCompilationDatabase.cpp:266
+        nodeToCommandLine(Syntax, std::get<2>(CommandsRef[I])),
+        Output ? Output->getValue(OutputStorage) : "");
   }
----------------
klimek wrote:
> joerg wrote:
> > klimek wrote:
> > > Optional: I'd probably let the nodeToCommandLine handle the null value 
> > > and make this code more straight forward?
> > I couldn't find a way to create a synthetic node without changing the YAML 
> > API.
> I'm probably missing something - why would we need a synthetic node? Can't we 
> just put nullptr into the vector?
That's what I am doing and why this line checks output :)


Repository:
  rL LLVM

https://reviews.llvm.org/D27138



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