text: /* Copyright 2017 R. Thomas
   * Copyright 2017 Quarkslab
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  #include <iomanip>
  
  #include "LIEF/exception.hpp"
  #include "LIEF/ELF/hash.hpp"
  
  #include "LIEF/ELF/SymbolVersion.hpp"
  #include "LIEF/ELF/SymbolVersionAux.hpp"
  
  namespace LIEF {
  namespace ELF {
  
  SymbolVersion::SymbolVersion(void) :
    value_{0},
    symbol_aux_{nullptr}
  {}
  
  SymbolVersion::~SymbolVersion(void) = default;
  
  SymbolVersion& SymbolVersion::operator=(const SymbolVersion&) = default;
  
  SymbolVersion::SymbolVersion(const SymbolVersion&) = default;
  
  SymbolVersion::SymbolVersion(uint16_t value) :
    value_{value},
    symbol_aux_{nullptr}
  {}
  
  
  SymbolVersion SymbolVersion::local(void) {
    return SymbolVersion{0};
  }
  
  SymbolVersion SymbolVersion::global(void) {
    return SymbolVersion{1};
  }
  
  uint16_t SymbolVersion::value(void) const {
    return this->value_;
  }
  
  
  bool SymbolVersion::has_auxiliary_version(void) const {
    return this->symbol_aux_ != nullptr;
  }
  
  const SymbolVersionAux& SymbolVersion::symbol_version_auxiliary(void) const {
    if (this->symbol_aux_ != nullptr) {
      return *this->symbol_aux_;
    } else {
      throw not_found("No auxiliary symbol associated with this version");
    }
  
  }
  
  SymbolVersionAux& SymbolVersion::symbol_version_auxiliary(void) {
    return const_cast<SymbolVersionAux&>(static_cast<const SymbolVersion*>(this)->symbol_version_auxiliary());
  }
  
  void SymbolVersion::value(uint16_t value) {
    this->value_ = value;
  }
  
  void SymbolVersion::accept(Visitor& visitor) const {
    visitor.visit(*this);
  }
  
  bool SymbolVersion::operator==(const SymbolVersion& rhs) const {
    size_t hash_lhs = Hash::hash(*this);
    size_t hash_rhs = Hash::hash(rhs);
    return hash_lhs == hash_rhs;
  }
  
  bool SymbolVersion::operator!=(const SymbolVersion& rhs) const {
    return not (*this == rhs);
  }
  
  std::ostream& operator<<(std::ostream& os, const ELF::SymbolVersion& symv) {
    if (symv.has_auxiliary_version()) {
      os << symv.symbol_version_auxiliary().name() << "(" << symv.value() << ")";
    } else {
      std::string type;
      if (symv.value() == 0) {
        type = "* Local *";
      } else if (symv.value() == 1){
        type = "* Global *";
      } else {
        type = "* ERROR (" + std::to_string(symv.value()) + ") *";
      }
      os << type;
    }
  
    return os;
  }
  }
  }
  