1 files changed, 11 insertions, 0 deletions
diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index ae5f2bde37..5006b00929 100644
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -566,6 +566,11 @@ class SourceManager : public RefCountedBase<SourceManager> {
   /// (likely to change while trying to use them). Defaults to false.
   bool UserFilesAreVolatile;
 
+  /// \brief True if all files read during this compilation should be treated
+  /// as transient (may not be present in later compilations using a module
+  /// file created from this compilation). Defaults to false.
+  bool FilesAreTransient;
+
   struct OverriddenFilesInfoTy {
     /// \brief Files that have been overridden with the contents from another
     /// file.
@@ -864,6 +869,12 @@ public:
   /// the module is used).
   void embedFileContentsInModule(const FileEntry *SourceFile);
 
+  /// \brief Request that all files that are read during this compilation be
+  /// written to any created module file.
+  void setEmbedAllFileContentsInModule(bool Embed) {
+    FilesAreTransient = Embed;
+  }
+
   //===--------------------------------------------------------------------===//
   // FileID manipulation methods.
   //===--------------------------------------------------------------------===//