Introduce a pure virtual clone() method to DiagnosticConsumer, so that

we have the ability to create a new, distict diagnostic consumer when
we go off and build a module. This avoids the currently horribleness
where the same diagnostic consumer sees diagnostics for multiple
translation units (and multiple SourceManagers!) causing all sorts of havok.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140743 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/Frontend/VerifyDiagnosticConsumer.cpp b/lib/Frontend/VerifyDiagnosticConsumer.cpp
index 983dc8eebb..cf35c8edc3 100644
--- a/lib/Frontend/VerifyDiagnosticConsumer.cpp
+++ b/lib/Frontend/VerifyDiagnosticConsumer.cpp
@@ -525,6 +525,14 @@ void VerifyDiagnosticConsumer::CheckDiagnostics() {
   Buffer.reset(new TextDiagnosticBuffer());
 }
 
+DiagnosticConsumer *
+VerifyDiagnosticConsumer::clone(DiagnosticsEngine &Diags) const {
+  if (!Diags.getClient())
+    Diags.setClient(PrimaryClient->clone(Diags));
+  
+  return new VerifyDiagnosticConsumer(Diags);
+}
+
 Directive* Directive::Create(bool RegexKind, const SourceLocation &Location,
                              const std::string &Text, unsigned Count) {
   if (RegexKind)