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.

llvm-svn: 140743

1 files changed, 5 insertions, 0 deletions

diff --git a/clang/lib/Rewrite/FixItRewriter.cpp b/clang/lib/Rewrite/FixItRewriter.cpp
index d38179dabfc..632c0de0742 100644
--- a/clang/lib/Rewrite/FixItRewriter.cpp
+++ b/clang/lib/Rewrite/FixItRewriter.cpp
@@ -156,4 +156,9 @@ void FixItRewriter::Diag(SourceLocation Loc, unsigned DiagID) {
   Diags.setClient(this);
 }
 
+DiagnosticConsumer *FixItRewriter::clone(DiagnosticsEngine &Diags) const {
+  return new FixItRewriter(Diags, Diags.getSourceManager(), 
+                           Rewrite.getLangOpts(), FixItOpts);
+}
+
 FixItOptions::~FixItOptions() {}