1 files changed, 67 insertions, 0 deletions
diff --git a/clang-r353983/include/lld/Core/Error.h b/clang-r353983/include/lld/Core/Error.h
new file mode 100644
index 00000000..c18fe96d
--- /dev/null
+++ b/clang-r353983/include/lld/Core/Error.h
@@ -0,0 +1,67 @@
+//===- Error.h - system_error extensions for lld ----------------*- 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 declares a new error_category for the lld library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_CORE_ERROR_H
+#define LLD_CORE_ERROR_H
+
+#include "lld/Common/LLVM.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/Error.h"
+#include <system_error>
+
+namespace lld {
+
+const std::error_category &YamlReaderCategory();
+
+enum class YamlReaderError {
+  unknown_keyword,
+  illegal_value
+};
+
+inline std::error_code make_error_code(YamlReaderError e) {
+  return std::error_code(static_cast<int>(e), YamlReaderCategory());
+}
+
+/// Creates an error_code object that has associated with it an arbitrary
+/// error messsage.  The value() of the error_code will always be non-zero
+/// but its value is meaningless. The messsage() will be (a copy of) the
+/// supplied error string.
+/// Note:  Once ErrorOr<> is updated to work with errors other than error_code,
+/// this can be updated to return some other kind of error.
+std::error_code make_dynamic_error_code(StringRef msg);
+
+/// Generic error.
+///
+/// For errors that don't require their own specific sub-error (most errors)
+/// this class can be used to describe the error via a string message.
+class GenericError : public llvm::ErrorInfo<GenericError> {
+public:
+  static char ID;
+  GenericError(Twine Msg);
+  const std::string &getMessage() const { return Msg; }
+  void log(llvm::raw_ostream &OS) const override;
+
+  std::error_code convertToErrorCode() const override {
+    return make_dynamic_error_code(getMessage());
+  }
+
+private:
+  std::string Msg;
+};
+
+} // end namespace lld
+
+namespace std {
+template <> struct is_error_code_enum<lld::YamlReaderError> : std::true_type {};
+}
+
+#endif