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annotate lib/Object/Error.cpp @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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children 54457678186b
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1 //===- Error.cpp - system_error extensions for Object -----------*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This defines a new error_category for the Object library.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #include "llvm/Object/Error.h"
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15 #include "llvm/Support/ErrorHandling.h"
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16
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17 using namespace llvm;
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18 using namespace object;
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19
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20 namespace {
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21 class _object_error_category : public _do_message {
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22 public:
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23 virtual const char* name() const;
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24 virtual std::string message(int ev) const;
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25 virtual error_condition default_error_condition(int ev) const;
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26 };
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27 }
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28
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29 const char *_object_error_category::name() const {
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30 return "llvm.object";
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31 }
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32
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33 std::string _object_error_category::message(int ev) const {
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34 object_error::Impl E = static_cast<object_error::Impl>(ev);
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35 switch (E) {
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36 case object_error::success: return "Success";
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37 case object_error::arch_not_found:
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38 return "No object file for requested architecture";
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39 case object_error::invalid_file_type:
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40 return "The file was not recognized as a valid object file";
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41 case object_error::parse_failed:
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42 return "Invalid data was encountered while parsing the file";
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43 case object_error::unexpected_eof:
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44 return "The end of the file was unexpectedly encountered";
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45 }
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46 llvm_unreachable("An enumerator of object_error does not have a message "
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47 "defined.");
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48 }
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49
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50 error_condition _object_error_category::default_error_condition(int ev) const {
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51 if (ev == object_error::success)
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52 return errc::success;
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53 return errc::invalid_argument;
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54 }
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55
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56 const error_category &object::object_category() {
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57 static _object_error_category o;
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58 return o;
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59 }