ceph/src/boost/libs/dll/include/boost/dll/detail/demangling/msvc.hpp

   1 //  Copyright 2016 Klemens Morgenstern
   2 //
   3 // Distributed under the Boost Software License, Version 1.0.
   4 // (See accompanying file LICENSE_1_0.txt
   5 // or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #ifndef BOOST_DLL_DETAIL_DEMANGLING_MSVC_HPP_
   8 #define BOOST_DLL_DETAIL_DEMANGLING_MSVC_HPP_
   9
  10 #include <boost/dll/detail/demangling/mangled_storage_base.hpp>
  11 #include <iterator>
  12 #include <algorithm>
  13 #include <boost/type_traits/is_const.hpp>
  14 #include <boost/type_traits/is_volatile.hpp>
  15 #include <boost/type_traits/is_lvalue_reference.hpp>
  16 #include <boost/type_traits/is_rvalue_reference.hpp>
  17 #include <boost/type_traits/function_traits.hpp>
  18 #include <boost/type_traits/remove_reference.hpp>
  19
  20 #include <boost/spirit/home/x3.hpp>
  21
  22 namespace boost { namespace dll { namespace detail {
  23
  24 class mangled_storage_impl  : public mangled_storage_base
  25 {
  26     template<typename T>
  27     struct dummy {};
  28
  29     template<typename Return, typename ...Args>
  30     std::vector<std::string> get_func_params(dummy<Return(Args...)>) const
  31     {
  32         return {get_name<Args>()...};
  33     }
  34     template<typename Return, typename ...Args>
  35     std::string get_return_type(dummy<Return(Args...)>) const
  36     {
  37         return get_name<Return>();
  38     }
  39     //function to remove preceeding 'class ' or 'struct ' if the are given in this format.
  40
  41     inline static void trim_typename(std::string & val);
  42 public:
  43     using ctor_sym = std::string;
  44     using dtor_sym = std::string;
  45
  46     using mangled_storage_base::mangled_storage_base;
  47
  48     template<typename T>
  49     std::string get_variable(const std::string &name) const;
  50
  51     template<typename Func>
  52     std::string get_function(const std::string &name) const;
  53
  54     template<typename Class, typename Func>
  55     std::string get_mem_fn(const std::string &name) const;
  56
  57     template<typename Signature>
  58     ctor_sym get_constructor() const;
  59
  60     template<typename Class>
  61     dtor_sym get_destructor() const;
  62
  63     template<typename T> //overload, does not need to virtual.
  64     std::string get_name() const
  65     {
  66         auto nm = mangled_storage_base::get_name<T>();
  67         trim_typename(nm);
  68         return nm;
  69     }
  70
  71     template<typename T>
  72     std::string get_vtable() const;
  73
  74     template<typename T>
  75     std::vector<std::string> get_related() const;
  76
  77 };
  78
  79 void mangled_storage_impl::trim_typename(std::string & val)
  80 {
  81     //remove preceeding class or struct, because you might want to use a struct as class, et vice versa
  82     if (val.size() >= 6)
  83     {
  84         using namespace std;
  85         static constexpr char class_ [7] = "class ";
  86         static constexpr char struct_[8] = "struct ";
  87
  88         if (equal(begin(class_), end(class_)-1, val.begin())) //aklright, starts with 'class '
  89             val.erase(0, 6);
  90         else if (val.size() >= 7)
  91             if (equal(begin(struct_), end(struct_)-1, val.begin()))
  92                 val.erase(0, 7);
  93     }
  94 }
  95
  96
  97 namespace parser
  98 {
  99     namespace x3 = spirit::x3;
 100
 101     auto ptr_rule_impl(std::integral_constant<std::size_t, 32>)
 102     {
 103         return -((-x3::space) >> "__ptr32");
 104     }
 105     auto ptr_rule_impl(std::integral_constant<std::size_t, 64>)
 106     {
 107         return -((-x3::space) >> "__ptr64");
 108     }
 109
 110     auto ptr_rule() { return ptr_rule_impl(std::integral_constant<std::size_t, sizeof(std::size_t)*8>());}
 111
 112     auto const visibility = ("public:" | x3::lit("protected:") | "private:");
 113     auto const virtual_ = x3::space >> "virtual";
 114     auto const static_     = x3::space >> x3::lit("static") ;
 115
 116     auto const_rule_impl(true_type )  {return x3::space >> "const";};
 117     auto const_rule_impl(false_type)  {return x3::eps;};
 118     template<typename T>
 119     auto const_rule() {using t = is_const<typename remove_reference<T>::type>; return const_rule_impl(t());}
 120
 121     auto volatile_rule_impl(true_type )  {return x3::space >> "volatile";};
 122     auto volatile_rule_impl(false_type)  {return x3::eps;};
 123     template<typename T>
 124     auto volatile_rule() {using t = is_volatile<typename remove_reference<T>::type>; return volatile_rule_impl(t());}
 125
 126
 127     auto inv_const_rule_impl(true_type )  {return "const" >>  x3::space ;};
 128     auto inv_const_rule_impl(false_type)  {return x3::eps;};
 129     template<typename T>
 130     auto inv_const_rule() {using t = is_const<typename remove_reference<T>::type>; return inv_const_rule_impl(t());}
 131
 132     auto inv_volatile_rule_impl(true_type )  {return "volatile" >> x3::space;};
 133     auto inv_volatile_rule_impl(false_type)  {return x3::eps;};
 134     template<typename T>
 135     auto inv_volatile_rule() {using t = is_volatile<typename remove_reference<T>::type>; return inv_volatile_rule_impl(t());}
 136
 137
 138     auto reference_rule_impl(false_type, false_type) {return x3::eps;}
 139     auto reference_rule_impl(true_type,  false_type) {return x3::space >>"&"  ;}
 140     auto reference_rule_impl(false_type, true_type ) {return x3::space >>"&&" ;}
 141
 142
 143     template<typename T>
 144     auto reference_rule() {using t_l = is_lvalue_reference<T>; using t_r = is_rvalue_reference<T>; return reference_rule_impl(t_l(), t_r());}
 145
 146     auto const class_ = ("class" | x3::lit("struct"));
 147
 148     //it takes a string, because it may be overloaded.
 149     template<typename T>
 150     auto type_rule(const std::string & type_name)
 151     {
 152         using namespace std;
 153
 154         return -(class_ >> x3::space)>> x3::string(type_name) >>
 155                 const_rule<T>() >>
 156                 volatile_rule<T>() >>
 157                 reference_rule<T>() >>
 158                 ptr_rule();
 159     }
 160     template<>
 161     auto type_rule<void>(const std::string &) { return x3::string("void"); };
 162
 163     auto const cdecl_   = "__cdecl"     >> x3::space;
 164     auto const stdcall  = "__stdcall"     >> x3::space;
 165 #if defined(_WIN64)//seems to be necessary by msvc 14-x64
 166     auto const thiscall = "__cdecl"     >> x3::space;
 167 #else
 168     auto const thiscall = "__thiscall"     >> x3::space;
 169 #endif
 170
 171     template<typename Return, typename Arg>
 172     auto arg_list(const mangled_storage_impl & ms, Return (*)(Arg))
 173     {
 174         using namespace std;
 175
 176         return type_rule<Arg>(ms.get_name<Arg>());
 177     }
 178
 179     template<typename Return, typename First, typename Second, typename ...Args>
 180     auto arg_list(const mangled_storage_impl & ms, Return (*)(First, Second, Args...))
 181     {
 182
 183         using next_type = Return (*)(Second, Args...);
 184         return type_rule<First>(ms.get_name<First>()) >> x3::char_(',') >> arg_list(ms, next_type());
 185     }
 186
 187     template<typename Return>
 188     auto arg_list(const mangled_storage_impl & ms, Return (*)())
 189     {
 190         return x3::string("void");
 191     }
 192 }
 193
 194
 195 template<typename T> std::string mangled_storage_impl::get_variable(const std::string &name) const
 196 {
 197     using namespace std;
 198     using namespace boost;
 199
 200     namespace x3 = spirit::x3;
 201     using namespace parser;
 202
 203     auto type_name = get_name<T>();
 204
 205     auto matcher =
 206             -(visibility >> static_ >> x3::space) >> //it may be a static class-member
 207             parser::type_rule<T>(type_name) >> x3::space >>
 208             name;
 209
 210     auto predicate = [&](const mangled_storage_base::entry & e)
 211         {
 212             if (e.demangled == name)//maybe not mangled,
 213                 return true;
 214
 215             auto itr = e.demangled.begin();
 216             auto end = e.demangled.end();
 217             auto res = x3::parse(itr, end, matcher);
 218             return res && (itr == end);
 219         };
 220
 221     auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
 222
 223     if (found != storage_.end())
 224         return found->mangled;
 225     else
 226         return "";
 227 }
 228
 229 template<typename Func> std::string mangled_storage_impl::get_function(const std::string &name) const
 230 {
 231     namespace x3 = spirit::x3;
 232     using namespace parser;
 233     using func_type = Func*;
 234     using return_type = typename function_traits<Func>::result_type;
 235     std::string return_type_name = get_name<return_type>();
 236
 237
 238     auto matcher =
 239                 -(visibility >> static_ >> x3::space) >> //it may be a static class-member, which does however not have the static attribute.
 240                 parser::type_rule<return_type>(return_type_name) >>  x3::space >>
 241                 cdecl_ >> //cdecl declaration for methods. stdcall cannot be
 242                 name >> x3::lit('(') >> parser::arg_list(*this, func_type()) >> x3::lit(')') >>  parser::ptr_rule();
 243
 244
 245     auto predicate = [&](const mangled_storage_base::entry & e)
 246             {
 247                 if (e.demangled == name)//maybe not mangled,
 248                     return true;
 249
 250                 auto itr = e.demangled.begin();
 251                 auto end = e.demangled.end();
 252                 auto res = x3::parse(itr, end, matcher);
 253
 254                 return res && (itr == end);
 255             };
 256
 257     auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
 258
 259     if (found != storage_.end())
 260         return found->mangled;
 261     else
 262         return "";
 263
 264 }
 265
 266 template<typename Class, typename Func>
 267 std::string mangled_storage_impl::get_mem_fn(const std::string &name) const
 268 {
 269     namespace x3 = spirit::x3;
 270     using namespace parser;
 271     using func_type = Func*;
 272     using return_type = typename function_traits<Func>::result_type;
 273     auto return_type_name = get_name<return_type>();
 274
 275
 276     auto cname = get_name<Class>();
 277
 278     auto matcher =
 279                 visibility >> -virtual_ >> x3::space >>
 280                 parser::type_rule<return_type>(return_type_name) >>  x3::space >>
 281                 thiscall >> //cdecl declaration for methods. stdcall cannot be
 282                 cname >> "::" >> name >>
 283                 x3::lit('(') >> parser::arg_list(*this, func_type()) >> x3::lit(')') >>
 284                 inv_const_rule<Class>() >> inv_volatile_rule<Class>() >> parser::ptr_rule();
 285
 286     auto predicate = [&](const mangled_storage_base::entry & e)
 287             {
 288                 auto itr = e.demangled.begin();
 289                 auto end = e.demangled.end();
 290                 auto res = x3::parse(itr, end, matcher);
 291
 292                 return res && (itr == end);
 293             };
 294
 295     auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
 296
 297     if (found != storage_.end())
 298         return found->mangled;
 299     else
 300         return "";
 301 }
 302
 303
 304 template<typename Signature>
 305 auto mangled_storage_impl::get_constructor() const -> ctor_sym
 306 {
 307     namespace x3 = spirit::x3;
 308     using namespace parser;
 309
 310     using func_type = Signature*;
 311
 312
 313     std::string ctor_name; // = class_name + "::" + name;
 314     std::string unscoped_cname; //the unscoped class-name
 315     {
 316         auto class_name = get_return_type(dummy<Signature>());
 317         auto pos = class_name.rfind("::");
 318         if (pos == std::string::npos)
 319         {
 320             ctor_name = class_name+ "::" + class_name ;
 321             unscoped_cname = class_name;
 322         }
 323         else
 324         {
 325             unscoped_cname = class_name.substr(pos+2) ;
 326             ctor_name = class_name+ "::" + unscoped_cname;
 327         }
 328     }
 329
 330     auto matcher =
 331                 visibility >> x3::space >>
 332                 thiscall >> //cdecl declaration for methods. stdcall cannot be
 333                 ctor_name >>
 334                 x3::lit('(') >> parser::arg_list(*this, func_type()) >> x3::lit(')') >> parser::ptr_rule();
 335
 336
 337     auto predicate = [&](const mangled_storage_base::entry & e)
 338             {
 339                 auto itr = e.demangled.begin();
 340                 auto end = e.demangled.end();
 341                 auto res = x3::parse(itr, end, matcher);
 342
 343                 return res && (itr == end);
 344             };
 345
 346     auto f = std::find_if(storage_.begin(), storage_.end(), predicate);
 347
 348     if (f != storage_.end())
 349         return f->mangled;
 350     else
 351         return "";
 352 }
 353
 354 template<typename Class>
 355 auto mangled_storage_impl::get_destructor() const -> dtor_sym
 356 {
 357     namespace x3 = spirit::x3;
 358     using namespace parser;
 359     std::string dtor_name; // = class_name + "::" + name;
 360     std::string unscoped_cname; //the unscoped class-name
 361     {
 362         auto class_name = get_name<Class>();
 363         auto pos = class_name.rfind("::");
 364         if (pos == std::string::npos)
 365         {
 366             dtor_name = class_name+ "::~" + class_name  + "(void)";
 367             unscoped_cname = class_name;
 368         }
 369         else
 370         {
 371             unscoped_cname = class_name.substr(pos+2) ;
 372             dtor_name = class_name+ "::~" + unscoped_cname + "(void)";
 373         }
 374     }
 375
 376     auto matcher =
 377                 visibility >> -virtual_ >> x3::space >>
 378                 thiscall >> //cdecl declaration for methods. stdcall cannot be
 379                 dtor_name >> parser::ptr_rule();
 380
 381
 382     auto predicate = [&](const mangled_storage_base::entry & e)
 383                 {
 384                     auto itr = e.demangled.begin();
 385                     auto end = e.demangled.end();
 386                     auto res = x3::parse(itr, end, matcher);
 387
 388                     return res && (itr == end);
 389                 };
 390
 391     auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
 392
 393
 394     if (found != storage_.end())
 395         return found->mangled;
 396     else
 397         return "";
 398 }
 399
 400 template<typename T>
 401 std::string mangled_storage_impl::get_vtable() const
 402 {
 403     std::string id = "const " + get_name<T>() + "::`vftable'";
 404
 405     auto predicate = [&](const mangled_storage_base::entry & e)
 406                 {
 407                     return e.demangled == id;
 408                 };
 409
 410     auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
 411
 412
 413     if (found != storage_.end())
 414         return found->mangled;
 415     else
 416         return "";
 417 }
 418
 419 template<typename T>
 420 std::vector<std::string> mangled_storage_impl::get_related() const
 421 {
 422     std::vector<std::string> ret;
 423     auto name = get_name<T>();
 424
 425     for (auto & c : storage_)
 426     {
 427         if (c.demangled.find(name) != std::string::npos)
 428             ret.push_back(c.demangled);
 429     }
 430
 431     return ret;
 432 }
 433
 434
 435 }}}
 436
 437
 438
 439 #endif /* BOOST_DLL_DETAIL_DEMANGLING_MSVC_HPP_ */