1 files changed, 4 insertions, 5 deletions
diff --git a/Firestore/core/src/firebase/firestore/model/document_key.h b/Firestore/core/src/firebase/firestore/model/document_key.h
index 8e590d8..134bda5 100644
--- a/Firestore/core/src/firebase/firestore/model/document_key.h
+++ b/Firestore/core/src/firebase/firestore/model/document_key.h
@@ -55,6 +55,10 @@ class DocumentKey {
   operator FSTDocumentKey*() const {
     return [FSTDocumentKey keyWithPath:path()];
   }
+
+  std::string ToString() const {
+    return path().CanonicalString();
+  }
 #endif
 
   /**
@@ -83,11 +87,6 @@ class DocumentKey {
     return path_ ? *path_ : Empty().path();
   }
 
-#if defined(__OBJC__)
-  // Helper function to convert to FSTDocumentKey during the C++ migration.
-  FSTDocumentKey* ToFSTDocumentKey() const;
-#endif  // defined(__OBJC__)
-
  private:
   // This is an optimization to make passing DocumentKey around cheaper (it's
   // copied often).