1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaModule.cpp b/clang/lib/Sema/SemaModule.cpp
index e9a1ac17ce86..f5c24bd10daa 100644
--- a/clang/lib/Sema/SemaModule.cpp
+++ b/clang/lib/Sema/SemaModule.cpp
@@ -344,6 +344,16 @@ Sema::ActOnModuleDecl(SourceLocation StartLoc, SourceLocation ModuleLoc,
   // statements, so imports are allowed.
   ImportState = ModuleImportState::ImportAllowed;
 
+  // For an implementation, We already made an implicit import (its interface).
+  // Make and return the import decl to be added to the current TU.
+  if (MDK == ModuleDeclKind::Implementation) {
+    // Make the import decl for the interface.
+    ImportDecl *Import =
+        ImportDecl::Create(Context, CurContext, ModuleLoc, Mod, Path[0].second);
+    // and return it to be added.
+    return ConvertDeclToDeclGroup(Import);
+  }
+
   // FIXME: Create a ModuleDecl.
   return nullptr;
 }