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-rw-r--r--include/clang/Driver/DarwinSDKInfo.h42
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diff --git a/include/clang/Driver/DarwinSDKInfo.h b/include/clang/Driver/DarwinSDKInfo.h
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+++ b/include/clang/Driver/DarwinSDKInfo.h
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+//===--- DarwinSDKInfo.h - SDK Information parser for darwin ----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_DRIVER_DARWIN_SDK_INFO_H
+#define LLVM_CLANG_DRIVER_DARWIN_SDK_INFO_H
+
+#include "clang/Basic/LLVM.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/VersionTuple.h"
+#include "llvm/Support/VirtualFileSystem.h"
+
+namespace clang {
+namespace driver {
+
+/// The information about the darwin SDK that was used during this compilation.
+class DarwinSDKInfo {
+public:
+ DarwinSDKInfo(llvm::VersionTuple Version) : Version(Version) {}
+
+ const llvm::VersionTuple &getVersion() const { return Version; }
+
+private:
+ llvm::VersionTuple Version;
+};
+
+/// Parse the SDK information from the SDKSettings.json file.
+///
+/// \returns an error if the SDKSettings.json file is invalid, None if the
+/// SDK has no SDKSettings.json, or a valid \c DarwinSDKInfo otherwise.
+Expected<Optional<DarwinSDKInfo>> parseDarwinSDKInfo(llvm::vfs::FileSystem &VFS,
+ StringRef SDKRootPath);
+
+} // end namespace driver
+} // end namespace clang
+
+#endif // LLVM_CLANG_DRIVER_DARWIN_SDK_INFO_H