Merge "Update prebuilt Clang to r353983." into p9.0HEADp9.0-backupp9.0

1 files changed, 47 insertions, 0 deletions

diff --git a/clang-r353983/include/llvm/Support/GlobPattern.h b/clang-r353983/include/llvm/Support/GlobPattern.h
new file mode 100644
index 00000000..66a4cd94
--- /dev/null
+++ b/clang-r353983/include/llvm/Support/GlobPattern.h
@@ -0,0 +1,47 @@
+//===-- GlobPattern.h - glob pattern matcher implementation -*- C++ -*-----===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements a glob pattern matcher. The glob pattern is the
+// rule used by the shell.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_GLOB_PATTERN_H
+#define LLVM_SUPPORT_GLOB_PATTERN_H
+
+#include "llvm/ADT/BitVector.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Error.h"
+#include <vector>
+
+// This class represents a glob pattern. Supported metacharacters
+// are "*", "?", "[<chars>]" and "[^<chars>]".
+namespace llvm {
+class BitVector;
+template <typename T> class ArrayRef;
+
+class GlobPattern {
+public:
+  static Expected<GlobPattern> create(StringRef Pat);
+  bool match(StringRef S) const;
+
+private:
+  bool matchOne(ArrayRef<BitVector> Pat, StringRef S) const;
+
+  // Parsed glob pattern.
+  std::vector<BitVector> Tokens;
+
+  // The following members are for optimization.
+  Optional<StringRef> Exact;
+  Optional<StringRef> Prefix;
+  Optional<StringRef> Suffix;
+};
+}
+
+#endif // LLVM_SUPPORT_GLOB_PATTERN_H