cpp11-migrate: Refactor for driver model of operation

Re-commit of r189691 and r189689 now with a proper autoconf fix.

Massive simplification of how replacements and file overrides are
handled by the migrator:
* Sources and headers are all treated the same.
* All replacements for a given translation unit are stored in the same
  TranslationUnitReplacements structure.
* Change tracking is updated only from main file; no need for
  propagating "is tracking" flag around.
* Transform base class no longer responsible for applying replacements.
  They are simply stored and main() looks after deduplication and
  application.
* Renamed -yaml-only to -serialize-replacements. Same restrictions apply:
  Can only request one transform. New restriction: formatting cannot also
  be turned on since it's basically a transform.
* If -serialize-replacements is requested, changes to files will not be
  applied on disk.
* Changed behaviour of function generating names for serialized
  replacements: Only the main source file goes into the name of the file
  since a file may contain changes for multiple different files.
* Updated HeaderReplacements LIT test for new serialization behaviour.
  * Replaced old test that ensures replacements are not serialized if
    -serialize-replacements is not provided. New version ensures changes
    are made directly to all files in the translation unit.
* Updated unit tests.
  * Due to major simplification of structures in FileOverrides.h, the
    FileOverridesTest is quite a bit simpler now.

llvm-svn: 189798

1 files changed, 6 insertions, 10 deletions

diff --git a/clang-tools-extra/cpp11-migrate/UseAuto/UseAutoActions.h b/clang-tools-extra/cpp11-migrate/UseAuto/UseAutoActions.h
index 403621803c3..0ddb0e0c5af 100644
--- a/clang-tools-extra/cpp11-migrate/UseAuto/UseAutoActions.h
+++ b/clang-tools-extra/cpp11-migrate/UseAuto/UseAutoActions.h
@@ -25,36 +25,32 @@
 class IteratorReplacer
     : public clang::ast_matchers::MatchFinder::MatchCallback {
 public:
-  IteratorReplacer(clang::tooling::Replacements &Replace,
-                   unsigned &AcceptedChanges, RiskLevel, const Transform &Owner)
-      : Replace(Replace), AcceptedChanges(AcceptedChanges), Owner(Owner) {}
+  IteratorReplacer(unsigned &AcceptedChanges, RiskLevel, Transform &Owner)
+      : AcceptedChanges(AcceptedChanges), Owner(Owner) {}
 
   /// \brief Entry point to the callback called when matches are made.
   virtual void run(const clang::ast_matchers::MatchFinder::MatchResult &Result)
       LLVM_OVERRIDE;
 
 private:
-  clang::tooling::Replacements &Replace;
   unsigned &AcceptedChanges;
-  const Transform &Owner;
+  Transform &Owner;
 };
 
 /// \brief The callback used when replacing type specifiers of variable
 /// declarations initialized by a C++ new expression.
 class NewReplacer : public clang::ast_matchers::MatchFinder::MatchCallback {
 public:
-  NewReplacer(clang::tooling::Replacements &Replace, unsigned &AcceptedChanges,
-              RiskLevel, const Transform &Owner)
-      : Replace(Replace), AcceptedChanges(AcceptedChanges), Owner(Owner) {}
+  NewReplacer(unsigned &AcceptedChanges, RiskLevel, Transform &Owner)
+      : AcceptedChanges(AcceptedChanges), Owner(Owner) {}
 
   /// \brief Entry point to the callback called when matches are made.
   virtual void run(const clang::ast_matchers::MatchFinder::MatchResult &Result)
       LLVM_OVERRIDE;
 
 private:
-  clang::tooling::Replacements &Replace;
   unsigned &AcceptedChanges;
-  const Transform &Owner;
+  Transform &Owner;
 };
 
 #endif // CPP11_MIGRATE_USE_AUTO_ACTIONS_H