1 //===- Error.cxx - system_error extensions for llvm-cxxdump -----*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This defines a new error_category for the llvm-cxxdump tool. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "Error.h" 15 #include "llvm/Support/ErrorHandling.h" 16 17 using namespace llvm; 18 19 namespace { 20 // FIXME: This class is only here to support the transition to llvm::Error. It 21 // will be removed once this transition is complete. Clients should prefer to 22 // deal with the Error value directly, rather than converting to error_code. 23 class cxxdump_error_category : public std::error_category { 24 public: 25 const char *name() const LLVM_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 } // namespace 40 41 namespace llvm { 42 const std::error_category &cxxdump_category() { 43 static cxxdump_error_category o; 44 return o; 45 } 46 } // namespace llvm 47
