47 lines · cpp
1//===- Error.cpp - system_error extensions for llvm-cxxdump -----*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This defines a new error_category for the llvm-cxxdump tool.10//11//===----------------------------------------------------------------------===//12 13#include "Error.h"14#include "llvm/Support/ErrorHandling.h"15#include <string>16 17using namespace llvm;18 19namespace {20// FIXME: This class is only here to support the transition to llvm::Error. It21// will be removed once this transition is complete. Clients should prefer to22// deal with the Error value directly, rather than converting to error_code.23class cxxdump_error_category : public std::error_category {24public:25 const char *name() const noexcept override { return "llvm.cxxdump"; }26 std::string message(int ev) const override {27 switch (static_cast<cxxdump_error>(ev)) {28 case cxxdump_error::success:29 return "Success";30 case cxxdump_error::file_not_found:31 return "No such file.";32 case cxxdump_error::unrecognized_file_format:33 return "Unrecognized file type.";34 }35 llvm_unreachable(36 "An enumerator of cxxdump_error does not have a message defined.");37 }38};39} // namespace40 41namespace llvm {42const std::error_category &cxxdump_category() {43 static cxxdump_error_category o;44 return o;45}46} // namespace llvm47