1 files changed, 9 insertions, 22 deletions
diff --git a/include/clang/Serialization/GlobalModuleIndex.h b/include/clang/Serialization/GlobalModuleIndex.h
index 5791fc024a32..5f4812626224 100644
--- a/include/clang/Serialization/GlobalModuleIndex.h
+++ b/include/clang/Serialization/GlobalModuleIndex.h
@@ -1,9 +1,8 @@
 //===--- GlobalModuleIndex.h - Global Module Index --------------*- C++ -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
@@ -21,6 +20,7 @@
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Error.h"
 #include <memory>
 #include <utility>
 
@@ -123,27 +123,14 @@ class GlobalModuleIndex {
 public:
   ~GlobalModuleIndex();
 
-  /// An error code returned when trying to read an index.
-  enum ErrorCode {
-    /// No error occurred.
-    EC_None,
-    /// No index was found.
-    EC_NotFound,
-    /// Some other process is currently building the index; it is not
-    /// available yet.
-    EC_Building,
-    /// There was an unspecified I/O error reading or writing the index.
-    EC_IOError
-  };
-
   /// Read a global index file for the given directory.
   ///
   /// \param Path The path to the specific module cache where the module files
   /// for the intended configuration reside.
   ///
   /// \returns A pair containing the global module index (if it exists) and
-  /// the error code.
-  static std::pair<GlobalModuleIndex *, ErrorCode>
+  /// the error.
+  static std::pair<GlobalModuleIndex *, llvm::Error>
   readIndex(llvm::StringRef Path);
 
   /// Returns an iterator for identifiers stored in the index table.
@@ -195,9 +182,9 @@ public:
   /// creating modules.
   /// \param Path The path to the directory containing module files, into
   /// which the global index will be written.
-  static ErrorCode writeIndex(FileManager &FileMgr,
-                              const PCHContainerReader &PCHContainerRdr,
-                              llvm::StringRef Path);
+  static llvm::Error writeIndex(FileManager &FileMgr,
+                                const PCHContainerReader &PCHContainerRdr,
+                                llvm::StringRef Path);
 };
 }