C++ (Cpp) typet::location示例

示例#1

文件： ansi_c_convert_type.cpp 项目： esbmc/esbmc

void ansi_c_convert_typet::read(const typet &type)
{
  clear();
  location = type.location();
  read_rec(type);
}

示例#2

void cpp_typecheckt::typecheck_enum_type(typet &type)
{
  // first save qualifiers
  c_qualifierst qualifiers;
  qualifiers.read(type);
  
  // these behave like special struct types
  // replace by type symbol
  
  cpp_enum_typet &enum_type=to_cpp_enum_type(type);
  bool anonymous=!enum_type.has_tag();
  irep_idt base_name;
  
  if(anonymous)
  {
    // we fabricate a tag based on the enum constants contained
    base_name=enum_type.generate_anon_tag();
  }
  else
  {
    const cpp_namet &tag=enum_type.tag();
    
    if(tag.is_simple_name())
      base_name=tag.get_base_name();
    else
    {
      err_location(type);
      throw "enum tag is expected to be a simple name";
    }
  }

  bool has_body=enum_type.has_body();
  bool tag_only_declaration=enum_type.get_tag_only_declaration();

  cpp_scopet &dest_scope=
    tag_scope(base_name, has_body, tag_only_declaration);

  const irep_idt symbol_name=
    dest_scope.prefix+"tag."+id2string(base_name);

  // check if we have it
  
  symbol_tablet::symbolst::iterator previous_symbol=
    symbol_table.symbols.find(symbol_name);
    
  if(previous_symbol!=symbol_table.symbols.end())
  {
    // we do!

    symbolt &symbol=previous_symbol->second;

    if(has_body)
    {
      err_location(type);
      str << "error: enum symbol `" << base_name
          << "' declared previously" << std::endl;
      str << "location of previous definition: "
          << symbol.location << std::endl;
      throw 0;
    }
  }
  else if(has_body)
  {
    std::string pretty_name=
      cpp_scopes.current_scope().prefix+id2string(base_name);

    symbolt symbol;

    symbol.name=symbol_name;
    symbol.base_name=base_name;
    symbol.value.make_nil();
    symbol.location=type.location();
    symbol.mode=ID_cpp;
    symbol.module=module;
    symbol.type.swap(type);
    symbol.is_type=true;
    symbol.is_macro=false;
    symbol.pretty_name=pretty_name;
    
    // move early, must be visible before doing body
    symbolt *new_symbol;
    if(symbol_table.move(symbol, new_symbol))
      throw "cpp_typecheckt::typecheck_enum_type: symbol_table.move() failed";    

    // put into scope
    cpp_idt &scope_identifier=
      cpp_scopes.put_into_scope(*new_symbol, dest_scope);
    
    scope_identifier.id_class=cpp_idt::CLASS;

    typecheck_enum_body(*new_symbol);
  }
  else
  {
    err_location(type);
    str << "use of enum `" << base_name
        << "' without previous declaration";
    throw 0;
  }

  // create type symbol
  type=typet(ID_symbol);
  type.set(ID_identifier, symbol_name);
  qualifiers.write(type);
}