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			355 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			355 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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    This file is part of TON Blockchain Library.
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    TON Blockchain Library is free software: you can redistribute it and/or modify
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    it under the terms of the GNU Lesser General Public License as published by
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    the Free Software Foundation, either version 2 of the License, or
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    (at your option) any later version.
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    TON Blockchain Library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public License
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    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
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    Copyright 2017-2020 Telegram Systems LLP
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*/
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#include "tl_writer_h.h"
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#include <cassert>
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#include <utility>
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namespace td {
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std::string TD_TL_writer_h::forward_declaration(std::string type) {
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  std::string prefix;
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  std::string suffix;
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  do {
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    std::size_t pos = type.find("::");
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    if (pos == std::string::npos) {
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      return prefix + "class " + type + ";\n" + suffix;
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    }
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    std::string namespace_name = type.substr(0, pos);
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    type = type.substr(pos + 2);
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    prefix += "namespace " + namespace_name + " {\n";
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    suffix += "}  // namespace " + namespace_name + "\n";
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  } while (true);
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  assert(false);
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  return "";
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}
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std::string TD_TL_writer_h::gen_output_begin() const {
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  std::string ext_include_str;
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  for (auto &it : ext_include) {
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    ext_include_str += "#include " + it + "\n";
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  }
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  if (!ext_include_str.empty()) {
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    ext_include_str += "\n";
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  }
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  std::string ext_forward_declaration;
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  for (auto &storer_name : get_storers()) {
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    ext_forward_declaration += forward_declaration(storer_name);
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  }
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  for (auto &parser_name : get_parsers()) {
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    ext_forward_declaration += forward_declaration(parser_name);
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  }
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  if (!ext_forward_declaration.empty()) {
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    ext_forward_declaration += "\n";
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  }
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  return "#pragma once\n\n"
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         "#include \"tl/TlObject.h\"\n\n"
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         "#include \"td/utils/int_types.h\"\n\n" +
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         ext_include_str +
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         "#include <cstdint>\n"
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         "#include <memory>\n"
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         "#include <utility>\n"
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         "#include <vector>\n\n" +
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         ext_forward_declaration + "namespace ton {\n" + "namespace " + tl_name + "{\n" +
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         "using BaseObject = ::ton::TlObject;\n\n"
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         "template <class Type>\n"
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         "using object_ptr = ::ton::tl_object_ptr<Type>;\n\n"
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         "template <class Type, class... Args>\n"
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         "object_ptr<Type> make_object(Args &&... args) {\n"
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         "  return object_ptr<Type>(new Type(std::forward<Args>(args)...));\n"
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         "}\n\n"
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         "template <class ToType, class FromType>\n"
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         "object_ptr<ToType> move_object_as(FromType &&from) {\n"
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         "  return object_ptr<ToType>(static_cast<ToType *>(from.release()));\n"
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         "}\n\n"
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         "std::string to_string(const BaseObject &value);\n\n"
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         "template <class T>\n"
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         "std::string to_string(const object_ptr<T> &value) {\n"
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         "  if (value == nullptr) {\n"
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         "    return \"null\";\n"
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         "  }\n"
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         "\n"
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         "  return to_string(*value);\n"
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         "}\n\n";
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}
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std::string TD_TL_writer_h::gen_output_end() const {
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  return "}  // namespace " + tl_name +
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         "\n"
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         "}  // namespace ton\n";
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}
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std::string TD_TL_writer_h::gen_field_definition(const std::string &class_name, const std::string &type_name,
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                                                 const std::string &field_name) const {
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  return "  " + type_name + (type_name.empty() || type_name[type_name.size() - 1] == ' ' ? "" : " ") + field_name +
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         ";\n";
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}
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std::string TD_TL_writer_h::gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
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                                     std::vector<tl::var_description> &vars) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_function_vars(const tl::tl_combinator *t,
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                                              std::vector<tl::var_description> &vars) const {
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  for (std::size_t i = 0; i < vars.size(); i++) {
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    vars[i].index = static_cast<int>(i);
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    vars[i].is_stored = false;
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    vars[i].is_type = false;
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    vars[i].parameter_num = -1;
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    vars[i].function_arg_num = -1;
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  }
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  for (std::size_t i = 0; i < t->args.size(); i++) {
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    const tl::arg &a = t->args[i];
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    int arg_type = a.type->get_type();
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    if (arg_type == tl::NODE_TYPE_VAR_TYPE) {
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      const tl::tl_tree_var_type *var_type = static_cast<const tl::tl_tree_var_type *>(a.type);
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      assert(a.flags & tl::FLAG_EXCL);
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      assert(var_type->var_num >= 0);
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      assert(!vars[var_type->var_num].is_type);
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      vars[var_type->var_num].is_type = true;
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      vars[var_type->var_num].function_arg_num = static_cast<int>(i);
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    }
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  }
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  std::string res;
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  for (std::size_t i = 0; i < vars.size(); i++) {
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    if (!vars[i].is_type) {
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      assert(vars[i].parameter_num == -1);
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      assert(vars[i].function_arg_num == -1);
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      assert(vars[i].is_stored == false);
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      res += "  mutable " + gen_class_name("#") + " " + gen_var_name(vars[i]) + ";\n";
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    }
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  }
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  return res;
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}
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std::string TD_TL_writer_h::gen_flags_definitions(const tl::tl_combinator *t) const {
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  std::vector<std::pair<std::string, std::int32_t>> flags;
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  for (std::size_t i = 0; i < t->args.size(); i++) {
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    const tl::arg &a = t->args[i];
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    if (a.exist_var_num != -1) {
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      auto name = a.name;
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      for (auto &c : name) {
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        c = to_upper(c);
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      }
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      flags.push_back(std::make_pair(name, a.exist_var_bit));
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    }
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  }
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  std::string res;
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  if (!flags.empty()) {
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    res += "  enum Flags : std::int32_t {";
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    bool first = true;
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    for (auto &p : flags) {
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      if (first) {
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        first = false;
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      } else {
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        res += ", ";
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      }
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      res += p.first + "_MASK = " + int_to_string(1 << p.second);
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    }
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    res += "};\n";
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  }
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  return res;
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}
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std::string TD_TL_writer_h::gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
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                                    bool check_negative) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_constructor_id_store(std::int32_t id, int storer_type) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars,
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                                            bool flat, int parser_type) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_field_store(const tl::arg &a, std::vector<tl::var_description> &vars, bool flat,
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                                            int storer_type) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
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                                           const std::vector<tl::var_description> &vars, int parser_type) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
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                                           const std::vector<tl::var_description> &vars, int storer_type) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_var_type_fetch(const tl::arg &a) const {
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  assert(false);
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  return "";
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}
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std::string TD_TL_writer_h::gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const {
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  return "class " + class_name + ";\n\n";
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}
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std::string TD_TL_writer_h::gen_class_begin(const std::string &class_name, const std::string &base_class_name,
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                                            bool is_proxy) const {
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  return "class " + class_name + (!is_proxy ? " final " : "") + ": public " + base_class_name +
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         " {\n"
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         " public:\n";
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}
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std::string TD_TL_writer_h::gen_class_end() const {
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  return "};\n\n";
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}
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std::string TD_TL_writer_h::gen_class_alias(const std::string &class_name, const std::string &alias_name) const {
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  return "";
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  //  return "typedef " + class_name + " " + alias_name + ";\n\n\n";
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}
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std::string TD_TL_writer_h::gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const {
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  if (is_proxy) {
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    if (class_name == gen_base_tl_class_name()) {
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      return "\n  virtual std::int32_t get_id() const = 0;\n";
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    }
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    return "";
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  }
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  return "\n"
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         "  static const std::int32_t ID = " +
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         int_to_string(id) +
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         ";\n"
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         "  std::int32_t get_id() const final {\n"
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         "    return ID;\n"
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         "  }\n";
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}
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std::string TD_TL_writer_h::gen_function_result_type(const tl::tl_tree *result) const {
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  assert(result->get_type() == tl::NODE_TYPE_TYPE);
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  const tl::tl_tree_type *result_type = static_cast<const tl::tl_tree_type *>(result);
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  std::string fetched_type = gen_type_name(result_type);
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  if (!fetched_type.empty() && fetched_type[fetched_type.size() - 1] == ' ') {
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    fetched_type.pop_back();
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  }
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  return "\n"
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         "  using ReturnType = " +
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         fetched_type + ";\n";
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}
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std::string TD_TL_writer_h::gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
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                                                     const std::string &parent_class_name, int arity,
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                                                     std::vector<tl::var_description> &vars, int parser_type) const {
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  std::string returned_type = "object_ptr<" + parent_class_name + "> ";
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  if (parser_type == 0) {
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    return "\n"
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           "  static " +
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           returned_type + "fetch(" + parser_name + " &p);\n\n" + "  explicit " + class_name + "(" + parser_name +
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           " &p);\n";
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  }
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  assert(arity == 0);
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  return "\n"
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         "  static " +
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         returned_type + "fetch(" + parser_name + " &p);\n";
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}
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std::string TD_TL_writer_h::gen_fetch_function_end(bool has_parent, int field_num,
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                                                   const std::vector<tl::var_description> &vars,
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                                                   int parser_type) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_fetch_function_result_begin(const std::string &parser_name,
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                                                            const std::string &class_name,
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                                                            const tl::tl_tree *result) const {
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  return "\n"
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         "  static ReturnType fetch_result(" +
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         parser_name + " &p);\n";
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}
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std::string TD_TL_writer_h::gen_fetch_function_result_end() const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_fetch_function_result_any_begin(const std::string &parser_name,
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                                                                const std::string &class_name, bool is_proxy) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_fetch_function_result_any_end(bool is_proxy) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_store_function_begin(const std::string &storer_name, const std::string &class_name,
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                                                     int arity, std::vector<tl::var_description> &vars,
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                                                     int storer_type) const {
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  assert(arity == 0);
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  if (storer_type == -1) {
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    return "";
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  }
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  return "\n"
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         "  void store(" +
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         storer_name + " &s" + std::string(storer_type == 0 ? "" : ", const char *field_name") + ") const final;\n";
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}
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std::string TD_TL_writer_h::gen_store_function_end(const std::vector<tl::var_description> &vars,
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                                                   int storer_type) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_fetch_switch_begin() const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_fetch_switch_end() const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_constructor_begin(int fields_num, const std::string &class_name,
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                                                  bool is_default) const {
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  return "\n"
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         "  " +
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         std::string(fields_num == 1 ? "explicit " : "") + class_name + "(";
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}
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std::string TD_TL_writer_h::gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
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                                                       bool is_default) const {
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  return "";
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}
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std::string TD_TL_writer_h::gen_constructor_end(const tl::tl_combinator *t, int fields_num, bool is_default) const {
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  return ");\n";
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}
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}  // namespace td
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