From 6a0372513edbc473b538d2f724efac50405d6fef Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 10 Jun 2013 20:45:12 +0000
Subject: Vendor import of clang tags/RELEASE_33/final r183502 (effectively,
 3.3 release):
 http://llvm.org/svn/llvm-project/cfe/tags/RELEASE_33/final@183502

---
 lib/Serialization/GlobalModuleIndex.cpp | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'lib/Serialization/GlobalModuleIndex.cpp')

diff --git a/lib/Serialization/GlobalModuleIndex.cpp b/lib/Serialization/GlobalModuleIndex.cpp
index f9acb847284d2..b6693e40e51e1 100644
--- a/lib/Serialization/GlobalModuleIndex.cpp
+++ b/lib/Serialization/GlobalModuleIndex.cpp
@@ -818,3 +818,34 @@ GlobalModuleIndex::writeIndex(FileManager &FileMgr, StringRef Path) {
   // We're done.
   return EC_None;
 }
+
+namespace {
+  class GlobalIndexIdentifierIterator : public IdentifierIterator {
+    /// \brief The current position within the identifier lookup table.
+    IdentifierIndexTable::key_iterator Current;
+
+    /// \brief The end position within the identifier lookup table.
+    IdentifierIndexTable::key_iterator End;
+
+  public:
+    explicit GlobalIndexIdentifierIterator(IdentifierIndexTable &Idx) {
+      Current = Idx.key_begin();
+      End = Idx.key_end();
+    }
+
+    virtual StringRef Next() {
+      if (Current == End)
+        return StringRef();
+
+      StringRef Result = *Current;
+      ++Current;
+      return Result;
+    }
+  };
+}
+
+IdentifierIterator *GlobalModuleIndex::createIdentifierIterator() const {
+  IdentifierIndexTable &Table =
+    *static_cast<IdentifierIndexTable *>(IdentifierIndex);
+  return new GlobalIndexIdentifierIterator(Table);
+}
-- 
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