Make ModuleDependencyCollector's method virtual (NFC)

For reproducers in LLDB we want to hook up into the existing clang
infrastructure. To make that happen we need to be able to override the
ModuleDependencyCollector's methods.

The alternative was to inherit from the DependencyCollector directly,
but that would mean re-implementing the ModuleDependencyListener and the
ModuleDependencyPPCallbacks and ModuleDependencyMMCallbacks.

Differential revision: https://reviews.llvm.org/D58072

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@353882 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 5 deletions

diff --git a/include/clang/Frontend/Utils.h b/include/clang/Frontend/Utils.h
index 58c5a39a88..124d4a9933 100644
--- a/include/clang/Frontend/Utils.h
+++ b/include/clang/Frontend/Utils.h
@@ -145,18 +145,18 @@ public:
   ~ModuleDependencyCollector() override { writeFileMap(); }
 
   StringRef getDest() { return DestDir; }
-  bool insertSeen(StringRef Filename) { return Seen.insert(Filename).second; }
-  void addFile(StringRef Filename, StringRef FileDst = {});
+  virtual bool insertSeen(StringRef Filename) { return Seen.insert(Filename).second; }
+  virtual void addFile(StringRef Filename, StringRef FileDst = {});
 
-  void addFileMapping(StringRef VPath, StringRef RPath) {
+  virtual void addFileMapping(StringRef VPath, StringRef RPath) {
     VFSWriter.addFileMapping(VPath, RPath);
   }
 
   void attachToPreprocessor(Preprocessor &PP) override;
   void attachToASTReader(ASTReader &R) override;
 
-  void writeFileMap();
-  bool hasErrors() { return HasErrors; }
+  virtual void writeFileMap();
+  virtual bool hasErrors() { return HasErrors; }
 };
 
 /// AttachDependencyGraphGen - Create a dependency graph generator, and attach