tdlight/td/generate/tl_writer_dotnet.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/tl/tl_writer.h"
#include <cassert>
#include <cstdint>
#include <sstream>
#include <string>
#include <vector>
namespace td {
namespace tl {
class TlWriterDotNet : public TL_writer {
public:
bool is_header_;
std::string prefix_;
TlWriterDotNet(const std::string &name, bool is_header, const std::string &prefix = "")
: TL_writer(name), is_header_(is_header), prefix_(prefix) {
}
int get_max_arity(void) const override {
return 0;
}
bool is_built_in_simple_type(const std::string &name) const override {
return name == "Bool" || name == "Int32" || name == "Int53" || name == "Int64" || name == "Double" ||
name == "String" || name == "Bytes";
}
bool is_built_in_complex_type(const std::string &name) const override {
return name == "Vector";
}
bool is_type_bare(const tl_type *t) const override {
return t->simple_constructors <= 1 || (is_built_in_simple_type(t->name) && t->name != "Bool") ||
is_built_in_complex_type(t->name);
}
std::vector<std::string> get_parsers(void) const override {
return {"FromUnmanaged"};
}
int get_parser_type(const tl_combinator *t, const std::string &name) const override {
return 0;
}
Mode get_parser_mode(int type) const override {
return All; // Server;
}
std::vector<std::string> get_storers(void) const override {
return {"ToUnmanaged", "ToString"};
}
std::vector<std::string> get_additional_functions(void) const override {
return {"ToUnmanaged", "FromUnmanaged"};
}
int get_storer_type(const tl_combinator *t, const std::string &name) const override {
return name == "ToString";
}
Mode get_storer_mode(int type) const override {
return type <= 1 ? All : Server;
}
std::string gen_base_tl_class_name(void) const override {
return "BaseObject";
}
std::string gen_base_type_class_name(int arity) const override {
assert(arity == 0);
return "Object";
}
std::string gen_base_function_class_name(void) const override {
return "Function";
}
static std::string to_camelCase(const std::string &name) {
return to_cCamelCase(name, false);
}
static std::string to_CamelCase(const std::string &name) {
return to_cCamelCase(name, true);
}
static std::string to_cCamelCase(const std::string &name, bool flag) {
bool next_to_upper = flag;
std::string result;
for (int i = 0; i < (int)name.size(); i++) {
if (!is_alnum(name[i])) {
next_to_upper = true;
continue;
}
if (next_to_upper) {
result += (char)to_upper(name[i]);
next_to_upper = false;
} else {
result += name[i];
}
}
return result;
}
std::string gen_native_field_name(std::string name) const {
for (int i = 0; i < (int)name.size(); i++) {
if (!is_alnum(name[i])) {
name[i] = '_';
}
}
assert(name.size() > 0);
assert(name[name.size() - 1] != '_');
return name + "_";
}
std::string gen_native_class_name(std::string name) const {
if (name == "Object") {
assert(0);
}
if (name == "#") {
return "int32_t";
}
for (int i = 0; i < (int)name.size(); i++) {
if (!is_alnum(name[i])) {
name[i] = '_';
}
}
return name;
}
std::string gen_class_name(std::string name) const override {
if (name == "Object" || name == "#") {
assert(0);
}
return to_CamelCase(name);
}
std::string gen_field_name(std::string name) const override {
assert(name.size() > 0);
assert(is_alnum(name.back()));
return to_CamelCase(name);
}
std::string gen_type_name(const tl_tree_type *tree_type) const override {
const tl_type *t = tree_type->type;
const std::string &name = t->name;
if (name == "#") {
assert(0);
}
if (name == "Bool") {
return "bool";
}
if (name == "Int32") {
return "int32";
}
if (name == "Int53" || name == "Int64") {
return "int64";
}
if (name == "Double") {
return "float64";
}
if (name == "String") {
return "String^";
}
if (name == "Bytes") {
return "Array<BYTE>^";
}
if (name == "Vector") {
assert(t->arity == 1);
assert((int)tree_type->children.size() == 1);
assert(tree_type->children[0]->get_type() == NODE_TYPE_TYPE);
const tl_tree_type *child = static_cast<const tl_tree_type *>(tree_type->children[0]);
return "Array<" + gen_type_name(child) + ">^";
}
assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
for (int i = 0; i < (int)tree_type->children.size(); i++) {
assert(tree_type->children[i]->get_type() == NODE_TYPE_NAT_CONST);
}
return gen_main_class_name(t) + "^";
}
std::string gen_output_begin(void) const override {
return prefix_ +
"#include \"td/tl/tl_dotnet_object.h\"\n\n"
"namespace Telegram {\n"
"namespace Td {\n"
"namespace Api {\n";
}
std::string gen_output_end() const override {
return "}\n"
"}\n"
"}\n";
}
std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const override {
if (!is_header_) {
return "";
}
std::stringstream ss;
ss << (is_proxy ? "interface" : "ref") << " class " << class_name << ";\n";
return ss.str();
}
std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name,
bool is_proxy) const override {
if (!is_header_) {
return "";
}
std::stringstream ss;
ss << "\npublic " << (is_proxy ? "interface" : "ref") << " class " << class_name << (is_proxy ? "" : " sealed")
<< (class_name == gen_base_tl_class_name() ? "" : " : " + base_class_name) << " {\n"
<< " public:\n";
return ss.str();
}
std::string gen_class_end(void) const override {
return "";
}
std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
const std::string &field_name) const override {
if (!is_header_) {
return "";
}
auto fixed_field_name = field_name;
if (field_name == class_name) {
fixed_field_name += "Value";
}
if (type_name.substr(0, field_name.size()) == field_name) {
auto fixed_type_name = "::Telegram::Td::Api::" + type_name;
std::stringstream ss;
ss << "private:\n";
ss << " " << fixed_type_name << " " << fixed_field_name << "PrivateField;\n";
ss << "public:\n";
ss << " property " << fixed_type_name << " " << fixed_field_name << " {\n";
ss << " " << fixed_type_name << " get() {\n";
ss << " return " << fixed_field_name << "PrivateField;\n";
ss << " }\n";
ss << " void set(" << fixed_type_name << " newValue) {\n";
ss << " " << fixed_field_name << "PrivateField = newValue;\n";
ss << " }\n";
ss << " }\n";
return ss.str();
}
return " property " + type_name + " " + fixed_field_name + ";\n";
}
std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
std::vector<var_description> &vars, int storer_type) const override {
if (storer_type < 0) {
return "";
}
std::stringstream ss;
ss << "\n";
if (storer_type) {
ss << (is_header_ ? " virtual " : "") << "String^ " << (is_header_ ? "" : gen_class_name(class_name) + "::")
<< "ToString()" << (is_header_ ? " override;" : " {\n return ::Telegram::Td::Api::ToString(this);\n}")
<< "\n";
} else {
ss << (is_header_ ? " virtual " : "") << "NativeObject^ "
<< (is_header_ ? "" : gen_class_name(class_name) + "::") << "ToUnmanaged()";
if (is_header_) {
ss << ";\n";
} else {
ss << " {\n return REF_NEW NativeObject(::Telegram::Td::Api::ToUnmanaged(this).release());\n}\n";
}
}
return ss.str();
}
std::string gen_store_function_end(const std::vector<var_description> &vars, int storer_type) const override {
return "";
}
std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const override {
std::stringstream ss;
ss << "\n";
ss << (is_header_ ? " " : gen_class_name(class_name) + "::") << gen_class_name(class_name) << "(";
return ss.str();
}
std::string gen_constructor_parameter(int field_num, const std::string &class_name, const arg &a,
bool is_default) const override {
if (is_default) {
return "";
}
std::stringstream ss;
ss << (field_num == 0 ? "" : ", ");
auto field_type = gen_field_type(a);
auto pos = 0;
while (field_type.substr(pos, 6) == "Array<") {
pos += 6;
}
if (field_type.substr(pos, 4) != "BYTE" && field_type.substr(pos, 6) != "String" &&
to_upper(field_type[pos]) == field_type[pos]) {
field_type = field_type.substr(0, pos) + "::Telegram::Td::Api::" + field_type.substr(pos);
}
ss << field_type << " " << to_camelCase(a.name);
return ss.str();
}
std::string gen_constructor_field_init(int field_num, const std::string &class_name, const arg &a,
bool is_default) const override {
if (is_default || is_header_) {
return "";
}
std::stringstream ss;
if (field_num == 0) {
ss << ") {\n";
}
auto field_name = gen_field_name(a.name);
if (field_name == class_name) {
field_name += "Value";
}
ss << " " << field_name << " = " << to_camelCase(a.name) << ";\n";
return ss.str();
}
std::string gen_constructor_end(const tl_combinator *t, int field_count, bool is_default) const override {
if (is_header_) {
return ");\n";
}
std::stringstream ss;
if (field_count == 0) {
ss << ") {\n";
}
ss << "}\n";
return ss.str();
}
std::string gen_additional_function(const std::string &function_name, const tl_combinator *t,
bool is_function) const override {
std::stringstream ss;
if (is_header_ && function_name == "ToUnmanaged") {
ss << "};\n";
}
ss << "\n";
if (function_name == "ToUnmanaged") {
gen_to_unmanaged(ss, t);
} else {
gen_from_unmanaged(ss, t);
}
return ss.str();
}
void gen_to_unmanaged(std::stringstream &ss, const tl_combinator *t) const {
auto native_class_name = gen_native_class_name(t->name);
auto class_name = gen_class_name(t->name);
ss << "td::td_api::object_ptr<td::td_api::" << native_class_name << "> ToUnmanaged(" << class_name << "^ from)";
if (is_header_) {
ss << ";\n";
return;
}
ss << " {\n"
<< " if (!from) {\n"
<< " return nullptr;\n"
<< " }\n"
<< " return td::td_api::make_object<td::td_api::" << native_class_name << ">(";
bool is_first = true;
for (auto &it : t->args) {
if (is_first) {
is_first = false;
} else {
ss << ", ";
}
auto field_name = gen_field_name(it.name);
if (field_name == class_name) {
field_name += "Value";
}
ss << "ToUnmanaged(from->" << field_name << ")";
}
ss << ");\n}\n";
}
void gen_from_unmanaged(std::stringstream &ss, const tl_combinator *t) const {
auto native_class_name = gen_native_class_name(t->name);
auto class_name = gen_class_name(t->name);
ss << class_name << "^ FromUnmanaged(td::td_api::" << native_class_name << " &from)";
if (is_header_) {
ss << ";\n";
return;
}
ss << " {\n"
<< " return REF_NEW " << class_name << "(";
bool is_first = true;
for (auto &it : t->args) {
if (is_first) {
is_first = false;
} else {
ss << ", ";
}
bool need_bytes = gen_field_type(it) == "Array<BYTE>^" || gen_field_type(it) == "Array<Array<BYTE>^>^";
ss << (need_bytes ? "Bytes" : "") << "FromUnmanaged(from." << gen_native_field_name(it.name) << ")";
}
ss << ");\n}\n";
}
std::string gen_array_type_name(const tl_tree_array *arr, const std::string &field_name) const override {
assert(0);
return std::string();
}
std::string gen_var_type_name(void) const override {
assert(0);
return std::string();
}
std::string gen_int_const(const tl_tree *tree_c, const std::vector<var_description> &vars) const override {
assert(0);
return std::string();
}
std::string gen_var_name(const var_description &desc) const override {
assert(0);
return "";
}
std::string gen_parameter_name(int index) const override {
assert(0);
return "";
}
std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const override {
return "";
}
std::string gen_vars(const tl_combinator *t, const tl_tree_type *result_type,
std::vector<var_description> &vars) const override {
assert(vars.empty());
return "";
}
std::string gen_function_vars(const tl_combinator *t, std::vector<var_description> &vars) const override {
assert(vars.empty());
return "";
}
std::string gen_uni(const tl_tree_type *result_type, std::vector<var_description> &vars,
bool check_negative) const override {
assert(result_type->children.empty());
return "";
}
std::string gen_constructor_id_store(std::int32_t id, int storer_type) const override {
return "";
}
std::string gen_field_fetch(int field_num, const arg &a, std::vector<var_description> &vars, bool flat,
int parser_type) const override {
return "";
// std::stringstream ss;
// ss << gen_field_name(a.name) << " = from_unmanaged(from->" <<
// gen_native_field_name(a.name) << ");\n"; return ss.str();
}
std::string gen_field_store(const arg &a, std::vector<var_description> &vars, bool flat,
int storer_type) const override {
return "";
// std::stringstream ss;
// ss << "to_unmanaged(" << gen_field_name(a.name) << ")";
// return ss.str();
}
std::string gen_type_fetch(const std::string &field_name, const tl_tree_type *tree_type,
const std::vector<var_description> &vars, int parser_type) const override {
assert(vars.empty());
return "";
}
std::string gen_type_store(const std::string &field_name, const tl_tree_type *tree_type,
const std::vector<var_description> &vars, int storer_type) const override {
return "";
}
std::string gen_var_type_fetch(const arg &a) const override {
assert(0);
return "";
}
std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const override {
return "";
}
std::string gen_function_result_type(const tl_tree *result) const override {
return "";
}
std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
const std::string &parent_class_name, int arity, int field_count,
std::vector<var_description> &vars, int parser_type) const override {
return "";
}
std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<var_description> &vars,
int parser_type) const override {
return "";
}
std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
const tl_tree *result) const override {
return "";
}
std::string gen_fetch_function_result_end(void) const override {
return "";
}
std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
bool is_proxy) const override {
return "";
}
std::string gen_fetch_function_result_any_end(bool is_proxy) const override {
return "";
}
std::string gen_fetch_switch_begin(void) const override {
return "";
}
std::string gen_fetch_switch_case(const tl_combinator *t, int arity) const override {
return "";
}
std::string gen_fetch_switch_end(void) const override {
return "";
}
std::string gen_additional_proxy_function_begin(const std::string &function_name, const tl_type *type,
const std::string &name, int arity, bool is_function) const override {
std::stringstream ss;
if (is_header_ && function_name == "ToUnmanaged") {
ss << "};\n";
}
if (type == nullptr) {
return ss.str();
}
auto native_class_name = gen_native_class_name(type->name);
auto class_name = gen_class_name(type->name);
if (function_name == "ToUnmanaged") {
ss << "td::td_api::object_ptr<td::td_api::" << native_class_name << "> ToUnmanaged(" << class_name << "^ from)";
if (is_header_) {
ss << ";\n";
return ss.str();
}
ss << " {\n"
<< " if (!from) {\n"
<< " return nullptr;\n"
<< " }\n"
<< " return td::td_api::move_object_as<td::td_api::" << native_class_name
<< ">(from->ToUnmanaged()->get_object_ptr());\n}\n";
} else {
ss << class_name << "^ FromUnmanaged(td::td_api::" << native_class_name << " &from)";
if (is_header_) {
ss << ";\n";
return ss.str();
}
ss << " {\n";
ss << " return DoFromUnmanaged<" << class_name << "^>(from);\n";
ss << "}\n";
}
return ss.str();
}
std::string gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
const std::string &class_name, int arity) const override {
return "";
}
std::string gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
const tl_combinator *t, int arity, bool is_function) const override {
return "";
}
std::string gen_additional_proxy_function_end(const std::string &function_name, const tl_type *type,
bool is_function) const override {
return "";
}
};
} // namespace tl
} // namespace td