Hello,
I am trying to redirect the output emitted when running a tool through
clang::tooling::runToolOnCode() to a buffer or string instead of stderr
(llvm::errs()). I'm using clangTooling from release 3.9.
When looking at clangTooling code and following the execution flow, I have
found the following:
clang::tooling::runToolOnCode()
calls clang::tooling::runToolOnCodeWithArgs()
which calls clang::tooling::ToolInvocation::run()
which contains the following :
TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
DiagnosticsEngine Diagnostics(
IntrusiveRefCntPtr<clang::DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
DiagConsumer ? DiagConsumer : &DiagnosticPrinter, false);
So at this point I guess I'm stuck because everything is redirected to stderr…
Did I miss something or is there really this limitation?
I also thought of redirecting stderr to somewhere else but… I can't see how it
will fit my needs as in the end I want to call clang::tooling::runToolOnCode()
on different files in parallel, all of it in the same process ; so I'll get
stderr mixed with output from several executions. The best solution would
obviously being able to provide the DiagnosticConsumer but at the moment
everything looks hardcoded.
Best regards,
L. Soltic
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