1 files changed, 64 insertions, 0 deletions
diff --git a/third_party/llvm-project/include/llvm/Support/SMLoc.h b/third_party/llvm-project/include/llvm/Support/SMLoc.h
new file mode 100644
index 000000000..d8607034e
--- /dev/null
+++ b/third_party/llvm-project/include/llvm/Support/SMLoc.h
@@ -0,0 +1,64 @@
+//===- SMLoc.h - Source location for use with diagnostics -------*- 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 declares the SMLoc class.  This class encapsulates a location in
+// source code for use in diagnostics.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_SMLOC_H
+#define LLVM_SUPPORT_SMLOC_H
+
+#include "llvm/ADT/None.h"
+#include <cassert>
+
+namespace llvm {
+
+/// Represents a location in source code.
+class SMLoc {
+  const char *Ptr = nullptr;
+
+public:
+  SMLoc() = default;
+
+  bool isValid() const { return Ptr != nullptr; }
+
+  bool operator==(const SMLoc &RHS) const { return RHS.Ptr == Ptr; }
+  bool operator!=(const SMLoc &RHS) const { return RHS.Ptr != Ptr; }
+
+  const char *getPointer() const { return Ptr; }
+
+  static SMLoc getFromPointer(const char *Ptr) {
+    SMLoc L;
+    L.Ptr = Ptr;
+    return L;
+  }
+};
+
+/// Represents a range in source code.
+///
+/// SMRange is implemented using a half-open range, as is the convention in C++.
+/// In the string "abc", the range [1,3) represents the substring "bc", and the
+/// range [2,2) represents an empty range between the characters "b" and "c".
+class SMRange {
+public:
+  SMLoc Start, End;
+
+  SMRange() = default;
+  SMRange(NoneType) {}
+  SMRange(SMLoc St, SMLoc En) : Start(St), End(En) {
+    assert(Start.isValid() == End.isValid() &&
+           "Start and End should either both be valid or both be invalid!");
+  }
+
+  bool isValid() const { return Start.isValid(); }
+};
+
+} // end namespace llvm
+
+#endif // LLVM_SUPPORT_SMLOC_H