440 lines
14 KiB
C++
440 lines
14 KiB
C++
// Copyright 2016 Klemens Morgenstern
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_DLL_DETAIL_DEMANGLING_MSVC_HPP_
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#define BOOST_DLL_DETAIL_DEMANGLING_MSVC_HPP_
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#include <boost/dll/detail/demangling/mangled_storage_base.hpp>
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#include <iterator>
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#include <algorithm>
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#include <boost/type_traits/is_const.hpp>
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#include <boost/type_traits/is_volatile.hpp>
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#include <boost/type_traits/is_lvalue_reference.hpp>
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#include <boost/type_traits/is_rvalue_reference.hpp>
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#include <boost/type_traits/function_traits.hpp>
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#include <boost/type_traits/remove_reference.hpp>
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#include <boost/spirit/home/x3.hpp>
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namespace boost { namespace dll { namespace detail {
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class mangled_storage_impl : public mangled_storage_base
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{
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template<typename T>
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struct dummy {};
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template<typename Return, typename ...Args>
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std::vector<std::string> get_func_params(dummy<Return(Args...)>) const
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{
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return {get_name<Args>()...};
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}
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template<typename Return, typename ...Args>
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std::string get_return_type(dummy<Return(Args...)>) const
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{
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return get_name<Return>();
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}
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//function to remove preceeding 'class ' or 'struct ' if the are given in this format.
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inline static void trim_typename(std::string & val);
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public:
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using ctor_sym = std::string;
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using dtor_sym = std::string;
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using mangled_storage_base::mangled_storage_base;
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template<typename T>
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std::string get_variable(const std::string &name) const;
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template<typename Func>
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std::string get_function(const std::string &name) const;
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template<typename Class, typename Func>
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std::string get_mem_fn(const std::string &name) const;
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template<typename Signature>
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ctor_sym get_constructor() const;
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template<typename Class>
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dtor_sym get_destructor() const;
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template<typename T> //overload, does not need to virtual.
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std::string get_name() const
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{
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auto nm = mangled_storage_base::get_name<T>();
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trim_typename(nm);
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return nm;
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}
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template<typename T>
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std::string get_vtable() const;
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template<typename T>
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std::vector<std::string> get_related() const;
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};
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void mangled_storage_impl::trim_typename(std::string & val)
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{
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//remove preceeding class or struct, because you might want to use a struct as class, et vice versa
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if (val.size() >= 6)
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{
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using namespace std;
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static constexpr char class_ [7] = "class ";
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static constexpr char struct_[8] = "struct ";
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if (equal(begin(class_), end(class_)-1, val.begin())) //aklright, starts with 'class '
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val.erase(0, 6);
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else if (val.size() >= 7)
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if (equal(begin(struct_), end(struct_)-1, val.begin()))
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val.erase(0, 7);
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}
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}
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namespace parser
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{
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namespace x3 = spirit::x3;
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auto ptr_rule_impl(std::integral_constant<std::size_t, 32>)
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{
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return -((-x3::space) >> "__ptr32");
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}
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auto ptr_rule_impl(std::integral_constant<std::size_t, 64>)
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{
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return -((-x3::space) >> "__ptr64");
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}
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auto ptr_rule() { return ptr_rule_impl(std::integral_constant<std::size_t, sizeof(std::size_t)*8>());}
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auto const visibility = ("public:" | x3::lit("protected:") | "private:");
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auto const virtual_ = x3::space >> "virtual";
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auto const static_ = x3::space >> x3::lit("static") ;
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auto const_rule_impl(true_type ) {return x3::space >> "const";};
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auto const_rule_impl(false_type) {return x3::eps;};
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template<typename T>
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auto const_rule() {using t = is_const<typename remove_reference<T>::type>; return const_rule_impl(t());}
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auto volatile_rule_impl(true_type ) {return x3::space >> "volatile";};
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auto volatile_rule_impl(false_type) {return x3::eps;};
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template<typename T>
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auto volatile_rule() {using t = is_volatile<typename remove_reference<T>::type>; return volatile_rule_impl(t());}
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auto inv_const_rule_impl(true_type ) {return "const" >> x3::space ;};
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auto inv_const_rule_impl(false_type) {return x3::eps;};
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template<typename T>
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auto inv_const_rule() {using t = is_const<typename remove_reference<T>::type>; return inv_const_rule_impl(t());}
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auto inv_volatile_rule_impl(true_type ) {return "volatile" >> x3::space;};
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auto inv_volatile_rule_impl(false_type) {return x3::eps;};
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template<typename T>
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auto inv_volatile_rule() {using t = is_volatile<typename remove_reference<T>::type>; return inv_volatile_rule_impl(t());}
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auto reference_rule_impl(false_type, false_type) {return x3::eps;}
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auto reference_rule_impl(true_type, false_type) {return x3::space >>"&" ;}
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auto reference_rule_impl(false_type, true_type ) {return x3::space >>"&&" ;}
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template<typename T>
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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());}
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auto const class_ = ("class" | x3::lit("struct"));
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//it takes a string, because it may be overloaded.
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template<typename T>
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auto type_rule(const std::string & type_name)
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{
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using namespace std;
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return -(class_ >> x3::space)>> x3::string(type_name) >>
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const_rule<T>() >>
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volatile_rule<T>() >>
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reference_rule<T>() >>
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ptr_rule();
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}
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template<>
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auto type_rule<void>(const std::string &) { return x3::string("void"); };
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auto const cdecl_ = "__cdecl" >> x3::space;
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auto const stdcall = "__stdcall" >> x3::space;
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#if defined(_WIN64)//seems to be necessary by msvc 14-x64
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auto const thiscall = "__cdecl" >> x3::space;
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#else
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auto const thiscall = "__thiscall" >> x3::space;
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#endif
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template<typename Return, typename Arg>
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auto arg_list(const mangled_storage_impl & ms, Return (*)(Arg))
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{
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using namespace std;
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return type_rule<Arg>(ms.get_name<Arg>());
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}
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template<typename Return, typename First, typename Second, typename ...Args>
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auto arg_list(const mangled_storage_impl & ms, Return (*)(First, Second, Args...))
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{
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using next_type = Return (*)(Second, Args...);
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return type_rule<First>(ms.get_name<First>()) >> x3::char_(',') >> arg_list(ms, next_type());
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}
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template<typename Return>
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auto arg_list(const mangled_storage_impl & ms, Return (*)())
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{
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return x3::string("void");
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}
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}
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template<typename T> std::string mangled_storage_impl::get_variable(const std::string &name) const
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{
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using namespace std;
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using namespace boost;
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namespace x3 = spirit::x3;
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using namespace parser;
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auto type_name = get_name<T>();
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auto matcher =
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-(visibility >> static_ >> x3::space) >> //it may be a static class-member
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parser::type_rule<T>(type_name) >> x3::space >>
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name;
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auto predicate = [&](const mangled_storage_base::entry & e)
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{
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if (e.demangled == name)//maybe not mangled,
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return true;
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auto itr = e.demangled.begin();
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auto end = e.demangled.end();
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auto res = x3::parse(itr, end, matcher);
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return res && (itr == end);
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};
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auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
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if (found != storage_.end())
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return found->mangled;
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else
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return "";
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}
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template<typename Func> std::string mangled_storage_impl::get_function(const std::string &name) const
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{
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namespace x3 = spirit::x3;
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using namespace parser;
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using func_type = Func*;
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using return_type = typename function_traits<Func>::result_type;
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std::string return_type_name = get_name<return_type>();
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auto matcher =
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-(visibility >> static_ >> x3::space) >> //it may be a static class-member, which does however not have the static attribute.
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parser::type_rule<return_type>(return_type_name) >> x3::space >>
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cdecl_ >> //cdecl declaration for methods. stdcall cannot be
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name >> x3::lit('(') >> parser::arg_list(*this, func_type()) >> x3::lit(')') >> parser::ptr_rule();
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auto predicate = [&](const mangled_storage_base::entry & e)
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{
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if (e.demangled == name)//maybe not mangled,
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return true;
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auto itr = e.demangled.begin();
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auto end = e.demangled.end();
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auto res = x3::parse(itr, end, matcher);
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return res && (itr == end);
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};
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auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
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if (found != storage_.end())
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return found->mangled;
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else
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return "";
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}
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template<typename Class, typename Func>
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std::string mangled_storage_impl::get_mem_fn(const std::string &name) const
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{
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namespace x3 = spirit::x3;
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using namespace parser;
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using func_type = Func*;
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using return_type = typename function_traits<Func>::result_type;
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auto return_type_name = get_name<return_type>();
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auto cname = get_name<Class>();
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auto matcher =
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visibility >> -virtual_ >> x3::space >>
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parser::type_rule<return_type>(return_type_name) >> x3::space >>
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thiscall >> //cdecl declaration for methods. stdcall cannot be
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cname >> "::" >> name >>
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x3::lit('(') >> parser::arg_list(*this, func_type()) >> x3::lit(')') >>
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inv_const_rule<Class>() >> inv_volatile_rule<Class>() >> parser::ptr_rule();
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auto predicate = [&](const mangled_storage_base::entry & e)
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{
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auto itr = e.demangled.begin();
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auto end = e.demangled.end();
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auto res = x3::parse(itr, end, matcher);
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return res && (itr == end);
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};
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auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
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if (found != storage_.end())
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return found->mangled;
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else
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return "";
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}
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template<typename Signature>
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auto mangled_storage_impl::get_constructor() const -> ctor_sym
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{
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namespace x3 = spirit::x3;
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using namespace parser;
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using func_type = Signature*;
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std::string ctor_name; // = class_name + "::" + name;
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std::string unscoped_cname; //the unscoped class-name
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{
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auto class_name = get_return_type(dummy<Signature>());
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auto pos = class_name.rfind("::");
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if (pos == std::string::npos)
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{
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ctor_name = class_name+ "::" + class_name ;
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unscoped_cname = class_name;
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}
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else
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{
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unscoped_cname = class_name.substr(pos+2) ;
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ctor_name = class_name+ "::" + unscoped_cname;
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}
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}
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auto matcher =
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visibility >> x3::space >>
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thiscall >> //cdecl declaration for methods. stdcall cannot be
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ctor_name >>
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x3::lit('(') >> parser::arg_list(*this, func_type()) >> x3::lit(')') >> parser::ptr_rule();
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auto predicate = [&](const mangled_storage_base::entry & e)
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{
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auto itr = e.demangled.begin();
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auto end = e.demangled.end();
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auto res = x3::parse(itr, end, matcher);
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return res && (itr == end);
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};
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auto f = std::find_if(storage_.begin(), storage_.end(), predicate);
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if (f != storage_.end())
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return f->mangled;
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else
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return "";
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}
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template<typename Class>
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auto mangled_storage_impl::get_destructor() const -> dtor_sym
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{
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namespace x3 = spirit::x3;
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using namespace parser;
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std::string dtor_name; // = class_name + "::" + name;
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std::string unscoped_cname; //the unscoped class-name
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{
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auto class_name = get_name<Class>();
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auto pos = class_name.rfind("::");
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if (pos == std::string::npos)
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{
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dtor_name = class_name+ "::~" + class_name + "(void)";
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unscoped_cname = class_name;
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}
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else
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{
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unscoped_cname = class_name.substr(pos+2) ;
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dtor_name = class_name+ "::~" + unscoped_cname + "(void)";
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}
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}
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auto matcher =
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visibility >> -virtual_ >> x3::space >>
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thiscall >> //cdecl declaration for methods. stdcall cannot be
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dtor_name >> parser::ptr_rule();
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auto predicate = [&](const mangled_storage_base::entry & e)
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{
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auto itr = e.demangled.begin();
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auto end = e.demangled.end();
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auto res = x3::parse(itr, end, matcher);
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return res && (itr == end);
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};
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auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
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if (found != storage_.end())
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return found->mangled;
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else
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return "";
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}
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template<typename T>
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std::string mangled_storage_impl::get_vtable() const
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{
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std::string id = "const " + get_name<T>() + "::`vftable'";
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auto predicate = [&](const mangled_storage_base::entry & e)
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{
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return e.demangled == id;
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};
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auto found = std::find_if(storage_.begin(), storage_.end(), predicate);
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if (found != storage_.end())
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return found->mangled;
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else
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return "";
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}
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template<typename T>
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std::vector<std::string> mangled_storage_impl::get_related() const
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{
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std::vector<std::string> ret;
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auto name = get_name<T>();
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for (auto & c : storage_)
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{
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if (c.demangled.find(name) != std::string::npos)
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ret.push_back(c.demangled);
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}
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return ret;
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}
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}}}
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#endif /* BOOST_DLL_DETAIL_DEMANGLING_MSVC_HPP_ */
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