From 1f3ff6a709432e1131ff802d660def2fab2aea58 Mon Sep 17 00:00:00 2001
From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Mon, 24 Jun 2013 21:19:12 +0000
Subject: [PATCH] [libclang/codecompletion] Make sure the top-level decl hash
 takes into account ImportDecls.

The top-level hash is used to determine if we need to update the global code-completion results.
ImportDecls did not affect the hash so a newly introduced ImportDecl would not trigger an update of the global results.

rdar://14202797

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184782 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Frontend/ASTUnit.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index 48cac1357c..364d8f3040 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -884,7 +884,15 @@ void AddTopLevelDeclarationToHash(Decl *D, unsigned &Hash) {
       Hash = llvm::HashString(NameStr, Hash);
     }
     return;
-  }  
+  }
+
+  if (ImportDecl *ImportD = dyn_cast<ImportDecl>(D)) {
+    if (Module *Mod = ImportD->getImportedModule()) {
+      std::string ModName = Mod->getFullModuleName();
+      Hash = llvm::HashString(ModName, Hash);
+    }
+    return;
+  }
 }
 
 class TopLevelDeclTrackerConsumer : public ASTConsumer {
-- 
2.40.0