ceph/src/jaegertracing/thrift/compiler/cpp/src/thrift/generate/t_netstd_generator.cc

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements. See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership. The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License. You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied. See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  *
  19  * Contains some contributions under the Thrift Software License.
  20  * Please see doc/old-thrift-license.txt in the Thrift distribution for
  21  * details.
  22  */
  23
  24 #include <cassert>
  25
  26 #include <string>
  27 #include <fstream>
  28 #include <iostream>
  29 #include <vector>
  30 #include <cctype>
  31
  32 #include <stdlib.h>
  33 #include <sys/stat.h>
  34 #include <sstream>
  35
  36 #include "thrift/platform.h"
  37 #include "thrift/generate/t_oop_generator.h"
  38 #include "thrift/generate/t_netstd_generator.h"
  39
  40 using std::map;
  41 using std::ostream;
  42 using std::ostringstream;
  43 using std::string;
  44 using std::stringstream;
  45 using std::vector;
  46
  47 //TODO: check for indentation
  48 //TODO: Do we need seqId_ in generation?
  49
  50 t_netstd_generator::t_netstd_generator(t_program* program, const map<string, string>& parsed_options, const string& option_string)
  51     : t_oop_generator(program)
  52 {
  53     (void)option_string;
  54
  55     union_ = false;
  56     serialize_ = false;
  57     wcf_ = false;
  58     wcf_namespace_.clear();
  59
  60     map<string, string>::const_iterator iter;
  61
  62     for (iter = parsed_options.begin(); iter != parsed_options.end(); ++iter)
  63     {
  64         if (iter->first.compare("union") == 0)
  65         {
  66             union_ = true;
  67         }
  68         else if (iter->first.compare("serial") == 0)
  69         {
  70             serialize_ = true;
  71             wcf_namespace_ = iter->second; // since there can be only one namespace
  72         }
  73         else if (iter->first.compare("wcf") == 0)
  74         {
  75             wcf_ = true;
  76             wcf_namespace_ = iter->second;
  77         }
  78         else
  79         {
  80             throw "unknown option netstd:" + iter->first;
  81         }
  82     }
  83
  84     out_dir_base_ = "gen-netstd";
  85 }
  86
  87 static string correct_function_name_for_async(string const& function_name)
  88 {
  89     string const async_end = "Async";
  90     size_t i = function_name.find(async_end);
  91     if (i != string::npos)
  92     {
  93         return function_name + async_end;
  94     }
  95
  96     return function_name;
  97 }
  98
  99 /**
 100 * \brief Search and replace "_args" substring in struct name if exist (for C# class naming)
 101 * \param struct_name
 102 * \return Modified struct name ("Struct_args" -> "StructArgs") or original name
 103 */
 104 static string check_and_correct_struct_name(const string& struct_name)
 105 {
 106     string args_end = "_args";
 107     size_t i = struct_name.find(args_end);
 108     if (i != string::npos)
 109     {
 110         string new_struct_name = struct_name;
 111         new_struct_name.replace(i, args_end.length(), "Args");
 112         return new_struct_name;
 113     }
 114
 115     string result_end = "_result";
 116     size_t j = struct_name.find(result_end);
 117     if (j != string::npos)
 118     {
 119         string new_struct_name = struct_name;
 120         new_struct_name.replace(j, result_end.length(), "Result");
 121         return new_struct_name;
 122     }
 123
 124     return struct_name;
 125 }
 126
 127 static bool field_has_default(t_field* tfield) { return tfield->get_value() != NULL; }
 128
 129 static bool field_is_required(t_field* tfield) { return tfield->get_req() == t_field::T_REQUIRED; }
 130
 131 static bool type_can_be_null(t_type* ttype)
 132 {
 133     while (ttype->is_typedef())
 134     {
 135         ttype = static_cast<t_typedef*>(ttype)->get_type();
 136     }
 137
 138     return ttype->is_container() || ttype->is_struct() || ttype->is_xception() || ttype->is_string();
 139 }
 140
 141 bool t_netstd_generator::is_wcf_enabled() const { return wcf_; }
 142
 143 bool t_netstd_generator::is_serialize_enabled() const { return serialize_; }
 144
 145 bool t_netstd_generator::is_union_enabled() const { return union_; }
 146
 147 map<string, int> t_netstd_generator::get_keywords_list() const
 148 {
 149     return netstd_keywords;
 150 }
 151
 152 void t_netstd_generator::init_generator()
 153 {
 154     MKDIR(get_out_dir().c_str());
 155
 156     // for usage of csharp namespaces in thrift files (from files for csharp)
 157     namespace_name_ = program_->get_namespace("netstd");
 158     if (namespace_name_.empty())
 159     {
 160         namespace_name_ = program_->get_namespace("netstd");
 161     }
 162
 163     string dir = namespace_name_;
 164     string subdir = get_out_dir().c_str();
 165     string::size_type loc;
 166
 167     while ((loc = dir.find(".")) != string::npos)
 168     {
 169         subdir = subdir + "/" + dir.substr(0, loc);
 170         MKDIR(subdir.c_str());
 171         dir = dir.substr(loc + 1);
 172     }
 173     if (dir.size() > 0)
 174     {
 175         subdir = subdir + "/" + dir;
 176         MKDIR(subdir.c_str());
 177     }
 178
 179     namespace_dir_ = subdir;
 180     init_keywords();
 181
 182     while (!member_mapping_scopes.empty())
 183     {
 184         cleanup_member_name_mapping(member_mapping_scopes.back().scope_member);
 185     }
 186
 187     pverbose(".NET Standard options:\n");
 188     pverbose("- union ...... %s\n", (is_union_enabled() ? "ON" : "off"));
 189     pverbose("- serialize .. %s\n", (is_serialize_enabled() ? "ON" : "off"));
 190     pverbose("- wcf ........ %s\n", (is_wcf_enabled() ? "ON" : "off"));
 191 }
 192
 193 string t_netstd_generator::normalize_name(string name)
 194 {
 195     string tmp(name);
 196     transform(tmp.begin(), tmp.end(), tmp.begin(), static_cast<int(*)(int)>(tolower));
 197
 198     // un-conflict keywords by prefixing with "@"
 199     if (netstd_keywords.find(tmp) != netstd_keywords.end())
 200     {
 201         return "@" + name;
 202     }
 203
 204     // no changes necessary
 205     return name;
 206 }
 207
 208 void t_netstd_generator::init_keywords()
 209 {
 210     netstd_keywords.clear();
 211
 212     // C# keywords
 213     netstd_keywords["abstract"] = 1;
 214     netstd_keywords["as"] = 1;
 215     netstd_keywords["base"] = 1;
 216     netstd_keywords["bool"] = 1;
 217     netstd_keywords["break"] = 1;
 218     netstd_keywords["byte"] = 1;
 219     netstd_keywords["case"] = 1;
 220     netstd_keywords["catch"] = 1;
 221     netstd_keywords["char"] = 1;
 222     netstd_keywords["checked"] = 1;
 223     netstd_keywords["class"] = 1;
 224     netstd_keywords["const"] = 1;
 225     netstd_keywords["continue"] = 1;
 226     netstd_keywords["decimal"] = 1;
 227     netstd_keywords["default"] = 1;
 228     netstd_keywords["delegate"] = 1;
 229     netstd_keywords["do"] = 1;
 230     netstd_keywords["double"] = 1;
 231     netstd_keywords["else"] = 1;
 232     netstd_keywords["enum"] = 1;
 233     netstd_keywords["event"] = 1;
 234     netstd_keywords["explicit"] = 1;
 235     netstd_keywords["extern"] = 1;
 236     netstd_keywords["false"] = 1;
 237     netstd_keywords["finally"] = 1;
 238     netstd_keywords["fixed"] = 1;
 239     netstd_keywords["float"] = 1;
 240     netstd_keywords["for"] = 1;
 241     netstd_keywords["foreach"] = 1;
 242     netstd_keywords["goto"] = 1;
 243     netstd_keywords["if"] = 1;
 244     netstd_keywords["implicit"] = 1;
 245     netstd_keywords["in"] = 1;
 246     netstd_keywords["int"] = 1;
 247     netstd_keywords["interface"] = 1;
 248     netstd_keywords["internal"] = 1;
 249     netstd_keywords["is"] = 1;
 250     netstd_keywords["lock"] = 1;
 251     netstd_keywords["long"] = 1;
 252     netstd_keywords["namespace"] = 1;
 253     netstd_keywords["new"] = 1;
 254     netstd_keywords["null"] = 1;
 255     netstd_keywords["object"] = 1;
 256     netstd_keywords["operator"] = 1;
 257     netstd_keywords["out"] = 1;
 258     netstd_keywords["override"] = 1;
 259     netstd_keywords["params"] = 1;
 260     netstd_keywords["private"] = 1;
 261     netstd_keywords["protected"] = 1;
 262     netstd_keywords["public"] = 1;
 263     netstd_keywords["readonly"] = 1;
 264     netstd_keywords["ref"] = 1;
 265     netstd_keywords["return"] = 1;
 266     netstd_keywords["sbyte"] = 1;
 267     netstd_keywords["sealed"] = 1;
 268     netstd_keywords["short"] = 1;
 269     netstd_keywords["sizeof"] = 1;
 270     netstd_keywords["stackalloc"] = 1;
 271     netstd_keywords["static"] = 1;
 272     netstd_keywords["string"] = 1;
 273     netstd_keywords["struct"] = 1;
 274     netstd_keywords["switch"] = 1;
 275     netstd_keywords["this"] = 1;
 276     netstd_keywords["throw"] = 1;
 277     netstd_keywords["true"] = 1;
 278     netstd_keywords["try"] = 1;
 279     netstd_keywords["typeof"] = 1;
 280     netstd_keywords["uint"] = 1;
 281     netstd_keywords["ulong"] = 1;
 282     netstd_keywords["unchecked"] = 1;
 283     netstd_keywords["unsafe"] = 1;
 284     netstd_keywords["ushort"] = 1;
 285     netstd_keywords["using"] = 1;
 286     netstd_keywords["virtual"] = 1;
 287     netstd_keywords["void"] = 1;
 288     netstd_keywords["volatile"] = 1;
 289     netstd_keywords["while"] = 1;
 290
 291     // C# contextual keywords
 292     netstd_keywords["add"] = 1;
 293     netstd_keywords["alias"] = 1;
 294     netstd_keywords["ascending"] = 1;
 295     netstd_keywords["async"] = 1;
 296     netstd_keywords["await"] = 1;
 297     netstd_keywords["descending"] = 1;
 298     netstd_keywords["dynamic"] = 1;
 299     netstd_keywords["from"] = 1;
 300     netstd_keywords["get"] = 1;
 301     netstd_keywords["global"] = 1;
 302     netstd_keywords["group"] = 1;
 303     netstd_keywords["into"] = 1;
 304     netstd_keywords["join"] = 1;
 305     netstd_keywords["let"] = 1;
 306     netstd_keywords["orderby"] = 1;
 307     netstd_keywords["partial"] = 1;
 308     netstd_keywords["remove"] = 1;
 309     netstd_keywords["select"] = 1;
 310     netstd_keywords["set"] = 1;
 311     netstd_keywords["value"] = 1;
 312     netstd_keywords["var"] = 1;
 313     netstd_keywords["where"] = 1;
 314     netstd_keywords["yield"] = 1;
 315
 316     netstd_keywords["when"] = 1;
 317 }
 318
 319 void t_netstd_generator::start_netstd_namespace(ostream& out)
 320 {
 321     if (!namespace_name_.empty())
 322     {
 323         out << "namespace " << namespace_name_ << endl;
 324         scope_up(out);
 325     }
 326 }
 327
 328 void t_netstd_generator::end_netstd_namespace(ostream& out)
 329 {
 330     if (!namespace_name_.empty())
 331     {
 332         scope_down(out);
 333     }
 334 }
 335
 336 string t_netstd_generator::netstd_type_usings() const
 337 {
 338     string namespaces =
 339         "using System;\n"
 340         "using System.Collections;\n"
 341         "using System.Collections.Generic;\n"
 342         "using System.Text;\n"
 343         "using System.IO;\n"
 344         "using System.Threading;\n"
 345         "using System.Threading.Tasks;\n"
 346         "using Thrift;\n"
 347         "using Thrift.Collections;\n";
 348
 349     if (is_wcf_enabled())
 350     {
 351         namespaces += "using System.ServiceModel;\n";
 352         namespaces += "using System.Runtime.Serialization;\n";
 353     }
 354
 355     return namespaces + endl;
 356 }
 357
 358 string t_netstd_generator::netstd_thrift_usings() const
 359 {
 360     string namespaces =
 361         "using Thrift.Protocol;\n"
 362         "using Thrift.Protocol.Entities;\n"
 363         "using Thrift.Protocol.Utilities;\n"
 364         "using Thrift.Transport;\n"
 365         "using Thrift.Transport.Client;\n"
 366         "using Thrift.Transport.Server;\n"
 367         "using Thrift.Processor;\n";
 368
 369     return namespaces + endl;
 370 }
 371
 372 void t_netstd_generator::close_generator()
 373 {
 374 }
 375
 376 void t_netstd_generator::generate_typedef(t_typedef* ttypedef)
 377 {
 378     (void)ttypedef;
 379 }
 380
 381 void t_netstd_generator::generate_enum(t_enum* tenum)
 382 {
 383     int ic = indent_count();
 384     string f_enum_name = namespace_dir_ + "/" + tenum->get_name() + ".cs";
 385
 386     ofstream_with_content_based_conditional_update f_enum;
 387     f_enum.open(f_enum_name.c_str());
 388
 389     generate_enum(f_enum, tenum);
 390
 391     f_enum.close();
 392     indent_validate(ic, "generate_enum");
 393 }
 394
 395 void t_netstd_generator::generate_enum(ostream& out, t_enum* tenum)
 396 {
 397     out << autogen_comment() << endl;
 398
 399     start_netstd_namespace(out);
 400     generate_netstd_doc(out, tenum);
 401
 402     out << indent() << "public enum " << tenum->get_name() << endl;
 403     scope_up(out);
 404
 405     vector<t_enum_value*> constants = tenum->get_constants();
 406     vector<t_enum_value*>::iterator c_iter;
 407
 408     for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter)
 409     {
 410         generate_netstd_doc(out, *c_iter);
 411         int value = (*c_iter)->get_value();
 412         out << indent() << (*c_iter)->get_name() << " = " << value << "," << endl;
 413     }
 414
 415     scope_down(out);
 416     end_netstd_namespace(out);
 417 }
 418
 419 void t_netstd_generator::generate_consts(vector<t_const*> consts)
 420 {
 421     if (consts.empty())
 422     {
 423         return;
 424     }
 425
 426     string f_consts_name = namespace_dir_ + '/' + program_name_ + ".Constants.cs";
 427     ofstream_with_content_based_conditional_update f_consts;
 428     f_consts.open(f_consts_name.c_str());
 429
 430     generate_consts(f_consts, consts);
 431
 432     f_consts.close();
 433 }
 434
 435 void t_netstd_generator::generate_consts(ostream& out, vector<t_const*> consts)
 436 {
 437     if (consts.empty())
 438     {
 439         return;
 440     }
 441
 442     out << autogen_comment() << netstd_type_usings() << endl;
 443
 444     start_netstd_namespace(out);
 445
 446     out << indent() << "public static class " << make_valid_csharp_identifier(program_name_) << "Constants" << endl;
 447
 448     scope_up(out);
 449
 450     vector<t_const*>::iterator c_iter;
 451     bool need_static_constructor = false;
 452     for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter)
 453     {
 454         generate_netstd_doc(out, *c_iter);
 455         if (print_const_value(out, (*c_iter)->get_name(), (*c_iter)->get_type(), (*c_iter)->get_value(), false))
 456         {
 457             need_static_constructor = true;
 458         }
 459     }
 460
 461     if (need_static_constructor)
 462     {
 463         print_const_constructor(out, consts);
 464     }
 465
 466     scope_down(out);
 467     end_netstd_namespace(out);
 468 }
 469
 470 void t_netstd_generator::print_const_def_value(ostream& out, string name, t_type* type, t_const_value* value)
 471 {
 472     if (type->is_struct() || type->is_xception())
 473     {
 474         const vector<t_field*>& fields = static_cast<t_struct*>(type)->get_members();
 475         const map<t_const_value*, t_const_value*, t_const_value::value_compare>& val = value->get_map();
 476         vector<t_field*>::const_iterator f_iter;
 477         map<t_const_value*, t_const_value*, t_const_value::value_compare>::const_iterator v_iter;
 478         prepare_member_name_mapping(static_cast<t_struct*>(type));
 479
 480         for (v_iter = val.begin(); v_iter != val.end(); ++v_iter)
 481         {
 482             t_field* field = NULL;
 483
 484             for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
 485             {
 486                 if ((*f_iter)->get_name() == v_iter->first->get_string())
 487                 {
 488                     field = *f_iter;
 489                 }
 490             }
 491
 492             if (field == NULL)
 493             {
 494                 throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string();
 495             }
 496
 497             t_type* field_type = field->get_type();
 498
 499             string val = render_const_value(out, name, field_type, v_iter->second);
 500             out << indent() << name << "." << prop_name(field) << " = " << val << ";" << endl;
 501         }
 502
 503         cleanup_member_name_mapping(static_cast<t_struct*>(type));
 504     }
 505     else if (type->is_map())
 506     {
 507         t_type* ktype = static_cast<t_map*>(type)->get_key_type();
 508         t_type* vtype = static_cast<t_map*>(type)->get_val_type();
 509         const map<t_const_value*, t_const_value*, t_const_value::value_compare>& val = value->get_map();
 510         map<t_const_value*, t_const_value*, t_const_value::value_compare>::const_iterator v_iter;
 511         for (v_iter = val.begin(); v_iter != val.end(); ++v_iter)
 512         {
 513             string key = render_const_value(out, name, ktype, v_iter->first);
 514             string val = render_const_value(out, name, vtype, v_iter->second);
 515             out << indent() << name << "[" << key << "]" << " = " << val << ";" << endl;
 516         }
 517     }
 518     else if (type->is_list() || type->is_set())
 519     {
 520         t_type* etype;
 521         if (type->is_list())
 522         {
 523             etype = static_cast<t_list*>(type)->get_elem_type();
 524         }
 525         else
 526         {
 527             etype = static_cast<t_set*>(type)->get_elem_type();
 528         }
 529
 530         const vector<t_const_value*>& val = value->get_list();
 531         vector<t_const_value*>::const_iterator v_iter;
 532         for (v_iter = val.begin(); v_iter != val.end(); ++v_iter)
 533         {
 534             string val = render_const_value(out, name, etype, *v_iter);
 535             out << indent() << name << ".Add(" << val << ");" << endl;
 536         }
 537     }
 538 }
 539
 540 void t_netstd_generator::print_const_constructor(ostream& out, vector<t_const*> consts)
 541 {
 542     out << indent() << "static " << make_valid_csharp_identifier(program_name_).c_str() << "Constants()" << endl;
 543     scope_up(out);
 544
 545     vector<t_const*>::iterator c_iter;
 546     for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter)
 547     {
 548         string name = (*c_iter)->get_name();
 549         t_type* type = (*c_iter)->get_type();
 550         t_const_value* value = (*c_iter)->get_value();
 551
 552         print_const_def_value(out, name, type, value);
 553     }
 554     scope_down(out);
 555 }
 556
 557 bool t_netstd_generator::print_const_value(ostream& out, string name, t_type* type, t_const_value* value, bool in_static, bool defval, bool needtype)
 558 {
 559     out << indent();
 560     bool need_static_construction = !in_static;
 561     while (type->is_typedef())
 562     {
 563         type = static_cast<t_typedef*>(type)->get_type();
 564     }
 565
 566     if (!defval || needtype)
 567     {
 568         out << (in_static ? "" : type->is_base_type() ? "public const " : "public static ") << type_name(type) << " ";
 569     }
 570
 571     if (type->is_base_type())
 572     {
 573         string v2 = render_const_value(out, name, type, value);
 574         out << normalize_name(name) << " = " << v2 << ";" << endl;
 575         need_static_construction = false;
 576     }
 577     else if (type->is_enum())
 578     {
 579         out << name << " = " << type_name(type) << "." << value->get_identifier_name() << ";" << endl;
 580         need_static_construction = false;
 581     }
 582     else if (type->is_struct() || type->is_xception())
 583     {
 584         out << name << " = new " << type_name(type) << "();" << endl;
 585     }
 586     else if (type->is_map())
 587     {
 588         out << name << " = new " << type_name(type) << "();" << endl;
 589     }
 590     else if (type->is_list() || type->is_set())
 591     {
 592         out << name << " = new " << type_name(type) << "();" << endl;
 593     }
 594
 595     if (defval && !type->is_base_type() && !type->is_enum())
 596     {
 597         print_const_def_value(out, name, type, value);
 598     }
 599
 600     return need_static_construction;
 601 }
 602
 603 string t_netstd_generator::render_const_value(ostream& out, string name, t_type* type, t_const_value* value)
 604 {
 605     (void)name;
 606     ostringstream render;
 607
 608     if (type->is_base_type())
 609     {
 610         t_base_type::t_base tbase = static_cast<t_base_type*>(type)->get_base();
 611         switch (tbase)
 612         {
 613         case t_base_type::TYPE_STRING:
 614             render << '"' << get_escaped_string(value) << '"';
 615             break;
 616         case t_base_type::TYPE_BOOL:
 617             render << ((value->get_integer() > 0) ? "true" : "false");
 618             break;
 619         case t_base_type::TYPE_I8:
 620         case t_base_type::TYPE_I16:
 621         case t_base_type::TYPE_I32:
 622         case t_base_type::TYPE_I64:
 623             render << value->get_integer();
 624             break;
 625         case t_base_type::TYPE_DOUBLE:
 626             if (value->get_type() == t_const_value::CV_INTEGER)
 627             {
 628                 render << value->get_integer();
 629             }
 630             else
 631             {
 632                 render << value->get_double();
 633             }
 634             break;
 635         default:
 636             throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase);
 637         }
 638     }
 639     else if (type->is_enum())
 640     {
 641         render << type->get_name() << "." << value->get_identifier_name();
 642     }
 643     else
 644     {
 645         string t = tmp("tmp");
 646         print_const_value(out, t, type, value, true, true, true);
 647         render << t;
 648     }
 649
 650     return render.str();
 651 }
 652
 653 void t_netstd_generator::generate_struct(t_struct* tstruct)
 654 {
 655     if (is_union_enabled() && tstruct->is_union())
 656     {
 657         generate_netstd_union(tstruct);
 658     }
 659     else
 660     {
 661         generate_netstd_struct(tstruct, false);
 662     }
 663 }
 664
 665 void t_netstd_generator::generate_xception(t_struct* txception)
 666 {
 667     generate_netstd_struct(txception, true);
 668 }
 669
 670 void t_netstd_generator::generate_netstd_struct(t_struct* tstruct, bool is_exception)
 671 {
 672     int ic = indent_count();
 673
 674     string f_struct_name = namespace_dir_ + "/" + (tstruct->get_name()) + ".cs";
 675     ofstream_with_content_based_conditional_update f_struct;
 676
 677     f_struct.open(f_struct_name.c_str());
 678
 679     f_struct << autogen_comment() << netstd_type_usings() << netstd_thrift_usings() << endl;
 680
 681     generate_netstd_struct_definition(f_struct, tstruct, is_exception);
 682
 683     f_struct.close();
 684
 685     indent_validate(ic, "generate_netstd_struct");
 686 }
 687
 688 void t_netstd_generator::generate_netstd_struct_definition(ostream& out, t_struct* tstruct, bool is_exception, bool in_class, bool is_result)
 689 {
 690     if (!in_class)
 691     {
 692         start_netstd_namespace(out);
 693     }
 694
 695     out << endl;
 696
 697     generate_netstd_doc(out, tstruct);
 698     prepare_member_name_mapping(tstruct);
 699
 700     if ((is_serialize_enabled() || is_wcf_enabled()) && !is_exception)
 701     {
 702         out << indent() << "[DataContract(Namespace=\"" << wcf_namespace_ << "\")]" << endl;
 703     }
 704
 705     bool is_final = tstruct->annotations_.find("final") != tstruct->annotations_.end();
 706
 707     string sharp_struct_name = check_and_correct_struct_name(normalize_name(tstruct->get_name()));
 708
 709     out << indent() << "public " << (is_final ? "sealed " : "") << "partial class " << sharp_struct_name << " : ";
 710
 711     if (is_exception)
 712     {
 713         out << "TException, ";
 714     }
 715
 716     out << "TBase" << endl
 717         << indent() << "{" << endl;
 718     indent_up();
 719
 720     const vector<t_field*>& members = tstruct->get_members();
 721     vector<t_field*>::const_iterator m_iter;
 722
 723     // make private members with public Properties
 724     for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 725     {
 726         // if the field is required, then we use auto-properties
 727         if (!field_is_required((*m_iter)))
 728         {
 729             out << indent() << "private " << declare_field(*m_iter, false, "_") << endl;
 730         }
 731     }
 732     out << endl;
 733
 734     bool has_non_required_fields = false;
 735     bool has_required_fields = false;
 736     for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 737     {
 738         generate_netstd_doc(out, *m_iter);
 739         generate_property(out, *m_iter, true, true);
 740         bool is_required = field_is_required((*m_iter));
 741         if (is_required)
 742         {
 743             has_required_fields = true;
 744         }
 745         else
 746         {
 747             has_non_required_fields = true;
 748         }
 749     }
 750
 751     bool generate_isset = has_non_required_fields;
 752     if (generate_isset)
 753     {
 754         out << endl;
 755         if (is_serialize_enabled() || is_wcf_enabled())
 756         {
 757             out << indent() << "[DataMember(Order = 1)]" << endl;
 758         }
 759         out << indent() << "public Isset __isset;" << endl;
 760         if (is_serialize_enabled() || is_wcf_enabled())
 761         {
 762             out << indent() << "[DataContract]" << endl;
 763         }
 764
 765         out << indent() << "public struct Isset" << endl
 766             << indent() << "{" << endl;
 767         indent_up();
 768
 769         for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 770         {
 771             bool is_required = field_is_required((*m_iter));
 772             // if it is required, don't need Isset for that variable
 773             // if it is not required, if it has a default value, we need to generate Isset
 774             if (!is_required)
 775             {
 776                 if (is_serialize_enabled() || is_wcf_enabled())
 777                 {
 778                     out << indent() << "[DataMember]" << endl;
 779                 }
 780                 out << indent() << "public bool " << normalize_name((*m_iter)->get_name()) << ";" << endl;
 781             }
 782         }
 783
 784         indent_down();
 785         out << indent() << "}" << endl << endl;
 786
 787         if (generate_isset && (is_serialize_enabled() || is_wcf_enabled()))
 788         {
 789             out << indent() << "#region XmlSerializer support" << endl << endl;
 790
 791             for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 792             {
 793                 bool is_required = field_is_required(*m_iter);
 794                 // if it is required, don't need Isset for that variable
 795                 // if it is not required, if it has a default value, we need to generate Isset
 796                 if (!is_required)
 797                 {
 798                     out << indent() << "public bool ShouldSerialize" << prop_name(*m_iter) << "()" << endl
 799                         << indent() << "{" << endl;
 800                     indent_up();
 801                     out << indent() << "return __isset." << normalize_name((*m_iter)->get_name()) << ";" << endl;
 802                     indent_down();
 803                     out << indent() << "}" << endl << endl;
 804                 }
 805             }
 806
 807             out << indent() << "#endregion XmlSerializer support" << endl << endl;
 808         }
 809     }
 810
 811     // We always want a default, no argument constructor for Reading
 812     out << indent() << "public " << sharp_struct_name << "()" << endl
 813         << indent() << "{" << endl;
 814     indent_up();
 815
 816     for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 817     {
 818         t_type* t = (*m_iter)->get_type();
 819         while (t->is_typedef())
 820         {
 821             t = static_cast<t_typedef*>(t)->get_type();
 822         }
 823         if ((*m_iter)->get_value() != NULL)
 824         {
 825             if (field_is_required((*m_iter)))
 826             {
 827                 print_const_value(out, "this." + prop_name(*m_iter), t, (*m_iter)->get_value(), true, true);
 828             }
 829             else
 830             {
 831                 print_const_value(out, "this._" + (*m_iter)->get_name(), t, (*m_iter)->get_value(), true, true);
 832                 // Optionals with defaults are marked set
 833                 out << indent() << "this.__isset." << normalize_name((*m_iter)->get_name()) << " = true;" << endl;
 834             }
 835         }
 836     }
 837     indent_down();
 838     out << indent() << "}" << endl << endl;
 839
 840     if (has_required_fields)
 841     {
 842         out << indent() << "public " << sharp_struct_name << "(";
 843         bool first = true;
 844         for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 845         {
 846             if (field_is_required(*m_iter))
 847             {
 848                 if (first)
 849                 {
 850                     first = false;
 851                 }
 852                 else
 853                 {
 854                     out << ", ";
 855                 }
 856                 out << type_name((*m_iter)->get_type()) << " " << (*m_iter)->get_name();
 857             }
 858         }
 859         out << ") : this()" << endl
 860             << indent() << "{" << endl;
 861         indent_up();
 862
 863         for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 864         {
 865             if (field_is_required(*m_iter))
 866             {
 867                 out << indent() << "this." << prop_name(*m_iter) << " = " << (*m_iter)->get_name() << ";" << endl;
 868             }
 869         }
 870
 871         indent_down();
 872         out << indent() << "}" << endl << endl;
 873     }
 874
 875     generate_netstd_struct_reader(out, tstruct);
 876     if (is_result)
 877     {
 878         generate_netstd_struct_result_writer(out, tstruct);
 879     }
 880     else
 881     {
 882         generate_netstd_struct_writer(out, tstruct);
 883     }
 884     generate_netstd_struct_equals(out, tstruct);
 885     generate_netstd_struct_hashcode(out, tstruct);
 886     generate_netstd_struct_tostring(out, tstruct);
 887
 888     indent_down();
 889     out << indent() << "}" << endl << endl;
 890
 891     // generate a corresponding WCF fault to wrap the exception
 892     if ((is_serialize_enabled() || is_wcf_enabled()) && is_exception)
 893     {
 894         generate_netstd_wcffault(out, tstruct);
 895     }
 896
 897     cleanup_member_name_mapping(tstruct);
 898     if (!in_class)
 899     {
 900         end_netstd_namespace(out);
 901     }
 902 }
 903
 904 void t_netstd_generator::generate_netstd_wcffault(ostream& out, t_struct* tstruct)
 905 {
 906     out << endl;
 907     out << indent() << "[DataContract]" << endl;
 908
 909     bool is_final = tstruct->annotations_.find("final") != tstruct->annotations_.end();
 910
 911     out << indent() << "public " << (is_final ? "sealed " : "") << "partial class " << tstruct->get_name() << "Fault" << endl
 912         << indent() << "{" << endl;
 913     indent_up();
 914
 915     const vector<t_field*>& members = tstruct->get_members();
 916     vector<t_field*>::const_iterator m_iter;
 917
 918     // make private members with public Properties
 919     for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 920     {
 921         // if the field is required, then we use auto-properties
 922         if (!field_is_required((*m_iter)))
 923         {
 924             out << indent() << "private " << declare_field(*m_iter, false, "_") << endl;
 925         }
 926     }
 927     out << endl;
 928
 929     for (m_iter = members.begin(); m_iter != members.end(); ++m_iter)
 930     {
 931         generate_property(out, *m_iter, true, false);
 932     }
 933
 934     indent_down();
 935     out << indent() << "}" << endl << endl;
 936 }
 937
 938 void t_netstd_generator::generate_netstd_struct_reader(ostream& out, t_struct* tstruct)
 939 {
 940     out << indent() << "public async Task ReadAsync(TProtocol iprot, CancellationToken cancellationToken)" << endl
 941         << indent() << "{" << endl;
 942     indent_up();
 943     out << indent() << "iprot.IncrementRecursionDepth();" << endl
 944         << indent() << "try" << endl
 945         << indent() << "{" << endl;
 946     indent_up();
 947
 948     const vector<t_field*>& fields = tstruct->get_members();
 949     vector<t_field*>::const_iterator f_iter;
 950
 951     // Required variables aren't in __isset, so we need tmp vars to check them
 952     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
 953     {
 954         if (field_is_required(*f_iter))
 955         {
 956             out << indent() << "bool isset_" << (*f_iter)->get_name() << " = false;" << endl;
 957         }
 958     }
 959
 960     out << indent() << "TField field;" << endl
 961         << indent() << "await iprot.ReadStructBeginAsync(cancellationToken);" << endl
 962         << indent() << "while (true)" << endl
 963         << indent() << "{" << endl;
 964     indent_up();
 965     out << indent() << "field = await iprot.ReadFieldBeginAsync(cancellationToken);" << endl
 966         << indent() << "if (field.Type == TType.Stop)" << endl
 967         << indent() << "{" << endl;
 968     indent_up();
 969     out << indent() << "break;" << endl;
 970     indent_down();
 971     out << indent() << "}" << endl << endl
 972         << indent() << "switch (field.ID)" << endl
 973         << indent() << "{" << endl;
 974     indent_up();
 975
 976     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
 977     {
 978         bool is_required = field_is_required(*f_iter);
 979         out << indent() << "case " << (*f_iter)->get_key() << ":" << endl;
 980         indent_up();
 981         out << indent() << "if (field.Type == " << type_to_enum((*f_iter)->get_type()) << ")" << endl
 982             << indent() << "{" << endl;
 983         indent_up();
 984
 985         generate_deserialize_field(out, *f_iter);
 986         if (is_required)
 987         {
 988             out << indent() << "isset_" << (*f_iter)->get_name() << " = true;" << endl;
 989         }
 990
 991         indent_down();
 992         out << indent() << "}" << endl
 993             << indent() << "else" << endl
 994             << indent() << "{" << endl;
 995         indent_up();
 996         out << indent() << "await TProtocolUtil.SkipAsync(iprot, field.Type, cancellationToken);" << endl;
 997         indent_down();
 998         out << indent() << "}" << endl
 999             << indent() << "break;" << endl;
1000         indent_down();
1001     }
1002
1003     out << indent() << "default: " << endl;
1004     indent_up();
1005     out << indent() << "await TProtocolUtil.SkipAsync(iprot, field.Type, cancellationToken);" << endl
1006         << indent() << "break;" << endl;
1007     indent_down();
1008     indent_down();
1009     out << indent() << "}" << endl
1010         << endl
1011         << indent() << "await iprot.ReadFieldEndAsync(cancellationToken);" << endl;
1012     indent_down();
1013     out << indent() << "}" << endl
1014         << endl
1015         << indent() << "await iprot.ReadStructEndAsync(cancellationToken);" << endl;
1016
1017     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1018     {
1019         if (field_is_required((*f_iter)))
1020         {
1021             out << indent() << "if (!isset_" << (*f_iter)->get_name() << ")" << endl
1022                 << indent() << "{" << endl;
1023             indent_up();
1024             out << indent() << "throw new TProtocolException(TProtocolException.INVALID_DATA);" << endl;
1025             indent_down();
1026             out << indent() << "}" << endl;
1027         }
1028     }
1029
1030     indent_down();
1031     out << indent() << "}" << endl;
1032     out << indent() << "finally" << endl
1033         << indent() << "{" << endl;
1034     indent_up();
1035     out << indent() << "iprot.DecrementRecursionDepth();" << endl;
1036     indent_down();
1037     out << indent() << "}" << endl;
1038     indent_down();
1039     out << indent() << "}" << endl << endl;
1040 }
1041
1042 void t_netstd_generator::generate_netstd_struct_writer(ostream& out, t_struct* tstruct)
1043 {
1044     out << indent() << "public async Task WriteAsync(TProtocol oprot, CancellationToken cancellationToken)" << endl
1045         << indent() << "{" << endl;
1046     indent_up();
1047
1048     out << indent() << "oprot.IncrementRecursionDepth();" << endl
1049         << indent() << "try" << endl
1050         << indent() << "{" << endl;
1051     indent_up();
1052
1053     string name = tstruct->get_name();
1054     const vector<t_field*>& fields = tstruct->get_sorted_members();
1055     vector<t_field*>::const_iterator f_iter;
1056
1057     out << indent() << "var struc = new TStruct(\"" << name << "\");" << endl
1058         << indent() << "await oprot.WriteStructBeginAsync(struc, cancellationToken);" << endl;
1059
1060     if (fields.size() > 0)
1061     {
1062         out << indent() << "var field = new TField();" << endl;
1063         for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1064         {
1065             bool is_required = field_is_required(*f_iter);
1066             if (!is_required)
1067             {
1068                 bool null_allowed = type_can_be_null((*f_iter)->get_type());
1069                 if (null_allowed)
1070                 {
1071                     out << indent() << "if (" << prop_name(*f_iter) << " != null && __isset." << normalize_name((*f_iter)->get_name()) << ")" << endl
1072                         << indent() << "{" << endl;
1073                     indent_up();
1074                 }
1075                 else
1076                 {
1077                     out << indent() << "if (__isset." << normalize_name((*f_iter)->get_name()) << ")" << endl
1078                         << indent() << "{" << endl;
1079                     indent_up();
1080                 }
1081             }
1082             out << indent() << "field.Name = \"" << (*f_iter)->get_name() << "\";" << endl
1083                 << indent() << "field.Type = " << type_to_enum((*f_iter)->get_type()) << ";" << endl
1084                 << indent() << "field.ID = " << (*f_iter)->get_key() << ";" << endl
1085                 << indent() << "await oprot.WriteFieldBeginAsync(field, cancellationToken);" << endl;
1086
1087             generate_serialize_field(out, *f_iter);
1088
1089             out << indent() << "await oprot.WriteFieldEndAsync(cancellationToken);" << endl;
1090             if (!is_required)
1091             {
1092                 indent_down();
1093                 out << indent() << "}" << endl;
1094             }
1095         }
1096     }
1097
1098     out << indent() << "await oprot.WriteFieldStopAsync(cancellationToken);" << endl
1099         << indent() << "await oprot.WriteStructEndAsync(cancellationToken);" << endl;
1100     indent_down();
1101     out << indent() << "}" << endl
1102         << indent() << "finally" << endl
1103         << indent() << "{" << endl;
1104     indent_up();
1105     out << indent() << "oprot.DecrementRecursionDepth();" << endl;
1106     indent_down();
1107     out << indent() << "}" << endl;
1108     indent_down();
1109     out << indent() << "}" << endl << endl;
1110 }
1111
1112 void t_netstd_generator::generate_netstd_struct_result_writer(ostream& out, t_struct* tstruct)
1113 {
1114     out << indent() << "public async Task WriteAsync(TProtocol oprot, CancellationToken cancellationToken)" << endl
1115         << indent() << "{" << endl;
1116     indent_up();
1117
1118     out << indent() << "oprot.IncrementRecursionDepth();" << endl
1119         << indent() << "try" << endl
1120         << indent() << "{" << endl;
1121     indent_up();
1122
1123     string name = tstruct->get_name();
1124     const vector<t_field*>& fields = tstruct->get_sorted_members();
1125     vector<t_field*>::const_iterator f_iter;
1126
1127     out << indent() << "var struc = new TStruct(\"" << name << "\");" << endl
1128         << indent() << "await oprot.WriteStructBeginAsync(struc, cancellationToken);" << endl;
1129
1130     if (fields.size() > 0)
1131     {
1132         out << indent() << "var field = new TField();" << endl;
1133         bool first = true;
1134         for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1135         {
1136             if (first)
1137             {
1138                 first = false;
1139                 out << endl << indent() << "if";
1140             }
1141             else
1142             {
1143                 out << indent() << "else if";
1144             }
1145
1146             out << "(this.__isset." << normalize_name((*f_iter)->get_name()) << ")" << endl
1147                 << indent() << "{" << endl;
1148             indent_up();
1149
1150             bool null_allowed = type_can_be_null((*f_iter)->get_type());
1151             if (null_allowed)
1152             {
1153                 out << indent() << "if (" << prop_name(*f_iter) << " != null)" << endl
1154                     << indent() << "{" << endl;
1155                 indent_up();
1156             }
1157
1158             out << indent() << "field.Name = \"" << prop_name(*f_iter) << "\";" << endl
1159                 << indent() << "field.Type = " << type_to_enum((*f_iter)->get_type()) << ";" << endl
1160                 << indent() << "field.ID = " << (*f_iter)->get_key() << ";" << endl
1161                 << indent() << "await oprot.WriteFieldBeginAsync(field, cancellationToken);" << endl;
1162
1163             generate_serialize_field(out, *f_iter);
1164
1165             out << indent() << "await oprot.WriteFieldEndAsync(cancellationToken);" << endl;
1166
1167             if (null_allowed)
1168             {
1169                 indent_down();
1170                 out << indent() << "}" << endl;
1171             }
1172
1173             indent_down();
1174             out << indent() << "}" << endl;
1175         }
1176     }
1177
1178     out << indent() << "await oprot.WriteFieldStopAsync(cancellationToken);" << endl
1179         << indent() << "await oprot.WriteStructEndAsync(cancellationToken);" << endl;
1180     indent_down();
1181     out << indent() << "}" << endl
1182         << indent() << "finally" << endl
1183         << indent() << "{" << endl;
1184     indent_up();
1185     out << indent() << "oprot.DecrementRecursionDepth();" << endl;
1186     indent_down();
1187     out << indent() << "}" << endl;
1188     indent_down();
1189     out << indent() << "}" << endl << endl;
1190 }
1191
1192 void t_netstd_generator::generate_netstd_struct_tostring(ostream& out, t_struct* tstruct)
1193 {
1194     out << indent() << "public override string ToString()" << endl
1195         << indent() << "{" << endl;
1196     indent_up();
1197     out << indent() << "var sb = new StringBuilder(\"" << tstruct->get_name() << "(\");" << endl;
1198
1199     const vector<t_field*>& fields = tstruct->get_members();
1200     vector<t_field*>::const_iterator f_iter;
1201
1202     bool useFirstFlag = false;
1203     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1204     {
1205         if (!field_is_required((*f_iter)))
1206         {
1207             out << indent() << "bool __first = true;" << endl;
1208             useFirstFlag = true;
1209         }
1210         break;
1211     }
1212
1213     bool had_required = false; // set to true after first required field has been processed
1214
1215     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1216     {
1217         bool is_required = field_is_required((*f_iter));
1218         if (!is_required)
1219         {
1220             bool null_allowed = type_can_be_null((*f_iter)->get_type());
1221             if (null_allowed)
1222             {
1223                 out << indent() << "if (" << prop_name((*f_iter)) << " != null && __isset." << normalize_name((*f_iter)->get_name()) << ")" << endl
1224                     << indent() << "{" << endl;
1225                 indent_up();
1226             }
1227             else
1228             {
1229                 out << indent() << "if (__isset." << normalize_name((*f_iter)->get_name()) << ")" << endl
1230                     << indent() << "{" << endl;
1231                 indent_up();
1232             }
1233         }
1234
1235         if (useFirstFlag && (!had_required))
1236         {
1237             out << indent() << "if(!__first) { sb.Append(\", \"); }" << endl;
1238             if (!is_required)
1239             {
1240                 out << indent() << "__first = false;" << endl;
1241             }
1242             out << indent() << "sb.Append(\"" << prop_name(*f_iter) << ": \");" << endl;
1243         }
1244         else
1245         {
1246             out << indent() << "sb.Append(\", " << prop_name(*f_iter) << ": \");" << endl;
1247         }
1248
1249         t_type* ttype = (*f_iter)->get_type();
1250         if (ttype->is_xception() || ttype->is_struct())
1251         {
1252             out << indent() << "sb.Append(" << prop_name(*f_iter) << "== null ? \"<null>\" : " << prop_name(*f_iter) << ".ToString());" << endl;
1253         }
1254         else
1255         {
1256             out << indent() << "sb.Append(" << prop_name(*f_iter) << ");" << endl;
1257         }
1258
1259         if (!is_required)
1260         {
1261             indent_down();
1262             out << indent() << "}" << endl;
1263         }
1264         else
1265         {
1266             had_required = true; // now __first must be false, so we don't need to check it anymore
1267         }
1268     }
1269
1270     out << indent() << "sb.Append(\")\");" << endl
1271         << indent() << "return sb.ToString();" << endl;
1272     indent_down();
1273     out << indent() << "}" << endl;
1274 }
1275
1276 void t_netstd_generator::generate_netstd_union(t_struct* tunion)
1277 {
1278     int ic = indent_count();
1279
1280     string f_union_name = namespace_dir_ + "/" + (tunion->get_name()) + ".cs";
1281     ofstream_with_content_based_conditional_update f_union;
1282
1283     f_union.open(f_union_name.c_str());
1284
1285     f_union << autogen_comment() << netstd_type_usings() << netstd_thrift_usings() << endl;
1286
1287     generate_netstd_union_definition(f_union, tunion);
1288
1289     f_union.close();
1290
1291     indent_validate(ic, "generate_netstd_union.");
1292 }
1293
1294 void t_netstd_generator::generate_netstd_union_definition(ostream& out, t_struct* tunion)
1295 {
1296     // Let's define the class first
1297     start_netstd_namespace(out);
1298
1299     out << indent() << "public abstract partial class " << tunion->get_name() << " : TUnionBase" << endl
1300         << indent() << "{" << endl;
1301     indent_up();
1302
1303     out << indent() << "public abstract Task WriteAsync(TProtocol tProtocol, CancellationToken cancellationToken);" << endl
1304         << indent() << "public readonly int Isset;" << endl
1305         << indent() << "public abstract object Data { get; }" << endl
1306         << indent() << "protected " << tunion->get_name() << "(int isset)" << endl
1307         << indent() << "{" << endl;
1308     indent_up();
1309     out << indent() << "Isset = isset;" << endl;
1310     indent_down();
1311     out << indent() << "}" << endl << endl;
1312
1313     out << indent() << "public class ___undefined : " << tunion->get_name() << endl
1314         << indent() << "{" << endl;
1315     indent_up();
1316
1317     out << indent() << "public override object Data { get { return null; } }" << endl
1318         << indent() << "public ___undefined() : base(0) {}" << endl << endl;
1319
1320     out << indent() << "public override Task WriteAsync(TProtocol oprot, CancellationToken cancellationToken)" << endl
1321         << indent() << "{" << endl;
1322     indent_up();
1323     out << indent() << "throw new TProtocolException( TProtocolException.INVALID_DATA, \"Cannot persist an union type which is not set.\");" << endl;
1324     indent_down();
1325     out << indent() << "}" << endl << endl;
1326     indent_down();
1327     out << indent() << "}" << endl << endl;
1328
1329     const vector<t_field*>& fields = tunion->get_members();
1330     vector<t_field*>::const_iterator f_iter;
1331
1332     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1333     {
1334         generate_netstd_union_class(out, tunion, (*f_iter));
1335     }
1336
1337     generate_netstd_union_reader(out, tunion);
1338
1339     indent_down();
1340     out << indent() << "}" << endl << endl;
1341
1342     end_netstd_namespace(out);
1343 }
1344
1345 void t_netstd_generator::generate_netstd_union_class(ostream& out, t_struct* tunion, t_field* tfield)
1346 {
1347     out << indent() << "public " << type_name(tfield->get_type()) << " As_" << tfield->get_name() << endl;
1348     out << indent() << "{" << endl;
1349     indent_up();
1350     out << indent() << "get" << endl;
1351     out << indent() << "{" << endl;
1352     indent_up();
1353     out << indent() << "return (" << tfield->get_key() << " == Isset) ? (" << type_name(tfield->get_type()) << ")Data : default(" << type_name(tfield->get_type()) << ");" << endl;
1354     indent_down();
1355     out << indent() << "}" << endl;
1356     indent_down();
1357     out << indent() << "}" << endl
1358         << endl;
1359
1360
1361     out << indent() << "public class " << tfield->get_name() << " : " << tunion->get_name() << endl
1362         << indent() << "{" << endl;
1363     indent_up();
1364
1365     out << indent() << "private " << type_name(tfield->get_type()) << " _data;" << endl
1366         << indent() << "public override object Data { get { return _data; } }" << endl
1367         << indent() << "public " << tfield->get_name() << "(" << type_name(tfield->get_type()) << " data) : base("<< tfield->get_key() <<")" << endl
1368         << indent() << "{" << endl;
1369     indent_up();
1370     out << indent() << "this._data = data;" << endl;
1371     indent_down();
1372     out << indent() << "}" << endl;
1373
1374     out << indent() << "public override async Task WriteAsync(TProtocol oprot, CancellationToken cancellationToken) {" << endl;
1375     indent_up();
1376
1377     out << indent() << "oprot.IncrementRecursionDepth();" << endl
1378         << indent() << "try" << endl
1379         << indent() << "{" << endl;
1380     indent_up();
1381
1382     out << indent() << "var struc = new TStruct(\"" << tunion->get_name() << "\");" << endl
1383         << indent() << "await oprot.WriteStructBeginAsync(struc, cancellationToken);" << endl;
1384
1385     out << indent() << "var field = new TField();" << endl
1386         << indent() << "field.Name = \"" << tfield->get_name() << "\";" << endl
1387         << indent() << "field.Type = " << type_to_enum(tfield->get_type()) << ";" << endl
1388         << indent() << "field.ID = " << tfield->get_key() << ";" << endl
1389         << indent() << "await oprot.WriteFieldBeginAsync(field, cancellationToken);" << endl;
1390
1391     generate_serialize_field(out, tfield, "_data", true);
1392
1393     out << indent() << "await oprot.WriteFieldEndAsync(cancellationToken);" << endl
1394         << indent() << "await oprot.WriteFieldStopAsync(cancellationToken);" << endl
1395         << indent() << "await oprot.WriteStructEndAsync(cancellationToken);" << endl;
1396     indent_down();
1397     out << indent() << "}" << endl
1398         << indent() << "finally" << endl
1399         << indent() << "{" << endl;
1400     indent_up();
1401     out << indent() << "oprot.DecrementRecursionDepth();" << endl;
1402     indent_down();
1403     out << indent() << "}" << endl;
1404     out << indent() << "}" << endl;
1405     indent_down();
1406     out << indent() << "}" << endl << endl;
1407 }
1408
1409 void t_netstd_generator::generate_netstd_struct_equals(ostream& out, t_struct* tstruct)
1410 {
1411     out << indent() << "public override bool Equals(object that)" << endl
1412         << indent() << "{" << endl;
1413     indent_up();
1414     out << indent() << "var other = that as " << check_and_correct_struct_name(normalize_name(tstruct->get_name())) << ";" << endl
1415         << indent() << "if (other == null) return false;" << endl
1416         << indent() << "if (ReferenceEquals(this, other)) return true;" << endl;
1417
1418     const vector<t_field*>& fields = tstruct->get_members();
1419     vector<t_field*>::const_iterator f_iter;
1420
1421     bool first = true;
1422
1423     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1424     {
1425         if (first)
1426         {
1427             first = false;
1428             out << indent() << "return ";
1429             indent_up();
1430         }
1431         else
1432         {
1433             out << endl;
1434             out << indent() << "&& ";
1435         }
1436         if (!field_is_required((*f_iter)))
1437         {
1438             out << "((__isset." << normalize_name((*f_iter)->get_name()) << " == other.__isset."
1439                 << normalize_name((*f_iter)->get_name()) << ") && ((!__isset."
1440                 << normalize_name((*f_iter)->get_name()) << ") || (";
1441         }
1442         t_type* ttype = (*f_iter)->get_type();
1443         if (ttype->is_container() || ttype->is_binary())
1444         {
1445             out << "TCollections.Equals(";
1446         }
1447         else
1448         {
1449             out << "System.Object.Equals(";
1450         }
1451         out << prop_name((*f_iter)) << ", other." << prop_name((*f_iter)) << ")";
1452         if (!field_is_required((*f_iter)))
1453         {
1454             out << ")))";
1455         }
1456     }
1457     if (first)
1458     {
1459         out << indent() << "return true;" << endl;
1460     }
1461     else
1462     {
1463         out << ";" << endl;
1464         indent_down();
1465     }
1466
1467     indent_down();
1468     out << indent() << "}" << endl << endl;
1469 }
1470
1471 void t_netstd_generator::generate_netstd_struct_hashcode(ostream& out, t_struct* tstruct)
1472 {
1473     out << indent() << "public override int GetHashCode() {" << endl;
1474     indent_up();
1475
1476     out << indent() << "int hashcode = 157;" << endl;
1477     out << indent() << "unchecked {" << endl;
1478     indent_up();
1479
1480     const vector<t_field*>& fields = tstruct->get_members();
1481     vector<t_field*>::const_iterator f_iter;
1482
1483     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1484     {
1485         t_type* ttype = (*f_iter)->get_type();
1486         if (!field_is_required((*f_iter)))
1487         {
1488             out << indent() << "if(__isset." << normalize_name((*f_iter)->get_name()) << ")" << endl;
1489             indent_up();
1490         }
1491         out << indent() << "hashcode = (hashcode * 397) + ";
1492         if (ttype->is_container())
1493         {
1494             out << "TCollections.GetHashCode(" << prop_name((*f_iter)) << ")";
1495         }
1496         else
1497         {
1498             out << prop_name((*f_iter)) << ".GetHashCode()";
1499         }
1500         out << ";" << endl;
1501
1502         if (!field_is_required((*f_iter)))
1503         {
1504             indent_down();
1505         }
1506     }
1507
1508     indent_down();
1509     out << indent() << "}" << endl;
1510     out << indent() << "return hashcode;" << endl;
1511
1512     indent_down();
1513     out << indent() << "}" << endl << endl;
1514 }
1515
1516 void t_netstd_generator::generate_service(t_service* tservice)
1517 {
1518     int ic = indent_count();
1519
1520     string f_service_name = namespace_dir_ + "/" + service_name_ + ".cs";
1521     ofstream_with_content_based_conditional_update f_service;
1522     f_service.open(f_service_name.c_str());
1523
1524     f_service << autogen_comment() << netstd_type_usings() << netstd_thrift_usings() << endl;
1525
1526     start_netstd_namespace(f_service);
1527
1528     f_service << indent() << "public partial class " << normalize_name(service_name_) << endl
1529               << indent() << "{" << endl;
1530     indent_up();
1531
1532     generate_service_interface(f_service, tservice);
1533     generate_service_client(f_service, tservice);
1534     generate_service_server(f_service, tservice);
1535     generate_service_helpers(f_service, tservice);
1536
1537     indent_down();
1538     f_service << indent() << "}" << endl;
1539
1540     end_netstd_namespace(f_service);
1541     f_service.close();
1542
1543     indent_validate(ic, "generate_service.");
1544 }
1545
1546 void t_netstd_generator::generate_service_interface(ostream& out, t_service* tservice)
1547 {
1548     string extends = "";
1549     string extends_iface = "";
1550     if (tservice->get_extends() != NULL)
1551     {
1552         extends = type_name(tservice->get_extends());
1553         extends_iface = " : " + extends + ".IAsync";
1554     }
1555
1556     //out << endl << endl;
1557
1558     generate_netstd_doc(out, tservice);
1559
1560     if (is_wcf_enabled())
1561     {
1562         out << indent() << "[ServiceContract(Namespace=\"" << wcf_namespace_ << "\")]" << endl;
1563     }
1564
1565     out << indent() << "public interface IAsync" << extends_iface << endl
1566         << indent() << "{" << endl;
1567
1568     indent_up();
1569     vector<t_function*> functions = tservice->get_functions();
1570     vector<t_function*>::iterator f_iter;
1571     for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter)
1572     {
1573         generate_netstd_doc(out, *f_iter);
1574
1575         // if we're using WCF, add the corresponding attributes
1576         if (is_wcf_enabled())
1577         {
1578             out << indent() << "[OperationContract]" << endl;
1579
1580             const vector<t_field*>& xceptions = (*f_iter)->get_xceptions()->get_members();
1581             vector<t_field*>::const_iterator x_iter;
1582             for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter)
1583             {
1584                 out << indent() << "[FaultContract(typeof(" + type_name((*x_iter)->get_type()) + "Fault))]" << endl;
1585             }
1586         }
1587
1588         out << indent() << function_signature_async(*f_iter) << ";" << endl << endl;
1589     }
1590     indent_down();
1591     out << indent() << "}" << endl << endl;
1592 }
1593
1594 void t_netstd_generator::generate_service_helpers(ostream& out, t_service* tservice)
1595 {
1596     vector<t_function*> functions = tservice->get_functions();
1597     vector<t_function*>::iterator f_iter;
1598
1599     for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter)
1600     {
1601         t_struct* ts = (*f_iter)->get_arglist();
1602         generate_netstd_struct_definition(out, ts, false, true);
1603         generate_function_helpers(out, *f_iter);
1604     }
1605 }
1606
1607 void t_netstd_generator::generate_service_client(ostream& out, t_service* tservice)
1608 {
1609     string extends = "";
1610     string extends_client = "";
1611     if (tservice->get_extends() != NULL)
1612     {
1613         extends = type_name(tservice->get_extends());
1614         extends_client = extends + ".Client, ";
1615     }
1616     else
1617     {
1618         extends_client = "TBaseClient, IDisposable, ";
1619     }
1620
1621     out << endl;
1622
1623     generate_netstd_doc(out, tservice);
1624
1625     out << indent() << "public class Client : " << extends_client << "IAsync" << endl
1626         << indent() << "{" << endl;
1627     indent_up();
1628
1629     out << indent() << "public Client(TProtocol protocol) : this(protocol, protocol)" << endl
1630         << indent() << "{" << endl
1631         << indent() << "}" << endl
1632         << endl
1633         << indent() << "public Client(TProtocol inputProtocol, TProtocol outputProtocol) : base(inputProtocol, outputProtocol)"
1634         << indent() << "{" << endl
1635         << indent() << "}" << endl;
1636
1637     vector<t_function*> functions = tservice->get_functions();
1638     vector<t_function*>::const_iterator functions_iterator;
1639
1640     for (functions_iterator = functions.begin(); functions_iterator != functions.end(); ++functions_iterator)
1641     {
1642         string function_name = correct_function_name_for_async((*functions_iterator)->get_name());
1643
1644         // async
1645         out << indent() << "public async " << function_signature_async(*functions_iterator, "") << endl
1646             << indent() << "{" << endl;
1647         indent_up();
1648
1649         string argsname = (*functions_iterator)->get_name() + "Args";
1650
1651         out << indent() << "await OutputProtocol.WriteMessageBeginAsync(new TMessage(\"" << function_name
1652             << "\", " << ((*functions_iterator)->is_oneway() ? "TMessageType.Oneway" : "TMessageType.Call") << ", SeqId), cancellationToken);" << endl
1653             << indent() << endl
1654             << indent() << "var args = new " << argsname << "();" << endl;
1655
1656         t_struct* arg_struct = (*functions_iterator)->get_arglist();
1657         prepare_member_name_mapping(arg_struct);
1658         const vector<t_field*>& fields = arg_struct->get_members();
1659         vector<t_field*>::const_iterator fld_iter;
1660
1661         for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter)
1662         {
1663             out << indent() << "args." << prop_name(*fld_iter) << " = " << normalize_name((*fld_iter)->get_name()) << ";" << endl;
1664         }
1665
1666         out << indent() << endl
1667             << indent() << "await args.WriteAsync(OutputProtocol, cancellationToken);" << endl
1668             << indent() << "await OutputProtocol.WriteMessageEndAsync(cancellationToken);" << endl
1669             << indent() << "await OutputProtocol.Transport.FlushAsync(cancellationToken);" << endl;
1670
1671         if (!(*functions_iterator)->is_oneway())
1672         {
1673             string resultname = (*functions_iterator)->get_name() + "Result";
1674             t_struct noargs(program_);
1675             t_struct* xs = (*functions_iterator)->get_xceptions();
1676             prepare_member_name_mapping(xs, xs->get_members(), resultname);
1677
1678             out << indent() << endl
1679                 << indent() << "var msg = await InputProtocol.ReadMessageBeginAsync(cancellationToken);" << endl
1680                 << indent() << "if (msg.Type == TMessageType.Exception)" << endl
1681                 << indent() << "{" << endl;
1682             indent_up();
1683
1684             out << indent() << "var x = await TApplicationException.ReadAsync(InputProtocol, cancellationToken);" << endl
1685                 << indent() << "await InputProtocol.ReadMessageEndAsync(cancellationToken);" << endl
1686                 << indent() << "throw x;" << endl;
1687             indent_down();
1688
1689             out << indent() << "}" << endl
1690                 << endl
1691                 << indent() << "var result = new " << resultname << "();" << endl
1692                 << indent() << "await result.ReadAsync(InputProtocol, cancellationToken);" << endl
1693                 << indent() << "await InputProtocol.ReadMessageEndAsync(cancellationToken);" << endl;
1694
1695             if (!(*functions_iterator)->get_returntype()->is_void())
1696             {
1697                 out << indent() << "if (result.__isset.success)" << endl
1698                     << indent() << "{" << endl;
1699                 indent_up();
1700                 out << indent() << "return result.Success;" << endl;
1701                 indent_down();
1702                 out << indent() << "}" << endl;
1703             }
1704
1705             const vector<t_field*>& xceptions = xs->get_members();
1706             vector<t_field*>::const_iterator x_iter;
1707             for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter)
1708             {
1709                 out << indent() << "if (result.__isset." << normalize_name((*x_iter)->get_name()) << ")" << endl
1710                     << indent() << "{" << endl;
1711                 indent_up();
1712                 out << indent() << "throw result." << prop_name(*x_iter) << ";" << endl;
1713                 indent_down();
1714                 out << indent() << "}" << endl;
1715             }
1716
1717             if ((*functions_iterator)->get_returntype()->is_void())
1718             {
1719                 out << indent() << "return;" << endl;
1720             }
1721             else
1722             {
1723                 out << indent() << "throw new TApplicationException(TApplicationException.ExceptionType.MissingResult, \""
1724                     << function_name << " failed: unknown result\");" << endl;
1725             }
1726
1727             cleanup_member_name_mapping((*functions_iterator)->get_xceptions());
1728             indent_down();
1729             out << indent() << "}" << endl << endl;
1730         }
1731         else
1732         {
1733             indent_down();
1734             out << indent() << "}" << endl;
1735         }
1736     }
1737
1738     indent_down();
1739     out << indent() << "}" << endl << endl;
1740 }
1741
1742 void t_netstd_generator::generate_service_server(ostream& out, t_service* tservice)
1743 {
1744     vector<t_function*> functions = tservice->get_functions();
1745     vector<t_function*>::iterator f_iter;
1746
1747     string extends = "";
1748     string extends_processor = "";
1749     if (tservice->get_extends() != NULL)
1750     {
1751         extends = type_name(tservice->get_extends());
1752         extends_processor = extends + ".AsyncProcessor, ";
1753     }
1754
1755     out << indent() << "public class AsyncProcessor : " << extends_processor << "ITAsyncProcessor" << endl
1756         << indent() << "{" << endl;
1757
1758     indent_up();
1759
1760     out << indent() << "private IAsync _iAsync;" << endl
1761         << endl
1762         << indent() << "public AsyncProcessor(IAsync iAsync)";
1763
1764     if (!extends.empty())
1765     {
1766         out << " : base(iAsync)";
1767     }
1768
1769     out << endl
1770         << indent() << "{" << endl;
1771     indent_up();
1772
1773     out << indent() << "if (iAsync == null) throw new ArgumentNullException(nameof(iAsync));" << endl
1774         << endl
1775         << indent() << "_iAsync = iAsync;" << endl;
1776
1777     for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter)
1778     {
1779         string function_name = (*f_iter)->get_name();
1780         out << indent() << "processMap_[\"" << correct_function_name_for_async(function_name) << "\"] = " << function_name << "_ProcessAsync;" << endl;
1781     }
1782
1783     indent_down();
1784     out << indent() << "}" << endl
1785         << endl;
1786
1787     if (extends.empty())
1788     {
1789         out << indent() << "protected delegate Task ProcessFunction(int seqid, TProtocol iprot, TProtocol oprot, CancellationToken cancellationToken);" << endl;
1790     }
1791
1792     if (extends.empty())
1793     {
1794         out << indent() << "protected Dictionary<string, ProcessFunction> processMap_ = new Dictionary<string, ProcessFunction>();" << endl;
1795     }
1796
1797     out << endl;
1798
1799     if (extends.empty())
1800     {
1801         out << indent() << "public async Task<bool> ProcessAsync(TProtocol iprot, TProtocol oprot)" << endl
1802             << indent() << "{" << endl;
1803         indent_up();
1804         out << indent() << "return await ProcessAsync(iprot, oprot, CancellationToken.None);" << endl;
1805         indent_down();
1806         out << indent() << "}" << endl << endl;
1807
1808         out << indent() << "public async Task<bool> ProcessAsync(TProtocol iprot, TProtocol oprot, CancellationToken cancellationToken)" << endl;
1809     }
1810     else
1811     {
1812         out << indent() << "public new async Task<bool> ProcessAsync(TProtocol iprot, TProtocol oprot)" << endl
1813             << indent() << "{" << endl;
1814         indent_up();
1815         out << indent() << "return await ProcessAsync(iprot, oprot, CancellationToken.None);" << endl;
1816         indent_down();
1817         out << indent() << "}" << endl << endl;
1818
1819         out << indent() << "public new async Task<bool> ProcessAsync(TProtocol iprot, TProtocol oprot, CancellationToken cancellationToken)" << endl;
1820     }
1821
1822     out << indent() << "{" << endl;
1823     indent_up();
1824     out << indent() << "try" << endl
1825         << indent() << "{" << endl;
1826     indent_up();
1827     out << indent() << "var msg = await iprot.ReadMessageBeginAsync(cancellationToken);" << endl
1828         << endl
1829         << indent() << "ProcessFunction fn;" << endl
1830         << indent() << "processMap_.TryGetValue(msg.Name, out fn);" << endl
1831         << endl
1832         << indent() << "if (fn == null)" << endl
1833         << indent() << "{" << endl;
1834     indent_up();
1835     out << indent() << "await TProtocolUtil.SkipAsync(iprot, TType.Struct, cancellationToken);" << endl
1836         << indent() << "await iprot.ReadMessageEndAsync(cancellationToken);" << endl
1837         << indent() << "var x = new TApplicationException (TApplicationException.ExceptionType.UnknownMethod, \"Invalid method name: '\" + msg.Name + \"'\");" << endl
1838         << indent() << "await oprot.WriteMessageBeginAsync(new TMessage(msg.Name, TMessageType.Exception, msg.SeqID), cancellationToken);" << endl
1839         << indent() << "await x.WriteAsync(oprot, cancellationToken);" << endl
1840         << indent() << "await oprot.WriteMessageEndAsync(cancellationToken);" << endl
1841         << indent() << "await oprot.Transport.FlushAsync(cancellationToken);" << endl
1842         << indent() << "return true;" << endl;
1843     indent_down();
1844     out << indent() << "}" << endl
1845         << endl
1846         << indent() << "await fn(msg.SeqID, iprot, oprot, cancellationToken);" << endl
1847         << endl;
1848     indent_down();
1849     out << indent() << "}" << endl;
1850     out << indent() << "catch (IOException)" << endl
1851         << indent() << "{" << endl;
1852     indent_up();
1853     out << indent() << "return false;" << endl;
1854     indent_down();
1855     out << indent() << "}" << endl
1856         << endl
1857         << indent() << "return true;" << endl;
1858     indent_down();
1859     out << indent() << "}" << endl << endl;
1860
1861     for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter)
1862     {
1863         generate_process_function_async(out, tservice, *f_iter);
1864     }
1865
1866     indent_down();
1867     out << indent() << "}" << endl << endl;
1868 }
1869
1870 void t_netstd_generator::generate_function_helpers(ostream& out, t_function* tfunction)
1871 {
1872     if (tfunction->is_oneway())
1873     {
1874         return;
1875     }
1876
1877     t_struct result(program_, tfunction->get_name() + "_result");
1878     t_field success(tfunction->get_returntype(), "success", 0);
1879     if (!tfunction->get_returntype()->is_void())
1880     {
1881         result.append(&success);
1882     }
1883
1884     t_struct* xs = tfunction->get_xceptions();
1885     const vector<t_field*>& fields = xs->get_members();
1886     vector<t_field*>::const_iterator f_iter;
1887     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1888     {
1889         result.append(*f_iter);
1890     }
1891
1892     generate_netstd_struct_definition(out, &result, false, true, true);
1893 }
1894
1895 void t_netstd_generator::generate_process_function_async(ostream& out, t_service* tservice, t_function* tfunction)
1896 {
1897     (void)tservice;
1898     out << indent() << "public async Task " << tfunction->get_name()
1899         << "_ProcessAsync(int seqid, TProtocol iprot, TProtocol oprot, CancellationToken cancellationToken)" << endl
1900         << indent() << "{" << endl;
1901     indent_up();
1902
1903     string argsname = tfunction->get_name() + "Args";
1904     string resultname = tfunction->get_name() + "Result";
1905
1906     out << indent() << "var args = new " << argsname << "();" << endl
1907         << indent() << "await args.ReadAsync(iprot, cancellationToken);" << endl
1908         << indent() << "await iprot.ReadMessageEndAsync(cancellationToken);" << endl;
1909
1910     if (!tfunction->is_oneway())
1911     {
1912         out << indent() << "var result = new " << resultname << "();" << endl;
1913     }
1914
1915     out << indent() << "try" << endl
1916         << indent() << "{" << endl;
1917     indent_up();
1918
1919     t_struct* xs = tfunction->get_xceptions();
1920     const vector<t_field*>& xceptions = xs->get_members();
1921
1922     if (xceptions.size() > 0)
1923     {
1924         out << indent() << "try" << endl
1925             << indent() << "{" << endl;
1926         indent_up();
1927     }
1928
1929     t_struct* arg_struct = tfunction->get_arglist();
1930     const vector<t_field*>& fields = arg_struct->get_members();
1931     vector<t_field*>::const_iterator f_iter;
1932
1933     out << indent();
1934     if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void())
1935     {
1936         out << "result.Success = ";
1937     }
1938
1939     out << "await _iAsync." << normalize_name(tfunction->get_name()) << "Async(";
1940
1941     bool first = true;
1942     prepare_member_name_mapping(arg_struct);
1943     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
1944     {
1945         if (first)
1946         {
1947             first = false;
1948         }
1949         else
1950         {
1951             out << ", ";
1952         }
1953
1954         out << "args." << prop_name(*f_iter);
1955     }
1956
1957     cleanup_member_name_mapping(arg_struct);
1958
1959     if (!first)
1960     {
1961         out << ", ";
1962     }
1963
1964     out << "cancellationToken);" << endl;
1965
1966     vector<t_field*>::const_iterator x_iter;
1967
1968     prepare_member_name_mapping(xs, xs->get_members(), resultname);
1969     if (xceptions.size() > 0)
1970     {
1971         indent_down();
1972         out << indent() << "}" << endl;
1973
1974         for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter)
1975         {
1976             out << indent() << "catch (" << type_name((*x_iter)->get_type()) << " " << (*x_iter)->get_name() << ")" << endl
1977                 << indent() << "{" << endl;
1978
1979             if (!tfunction->is_oneway())
1980             {
1981                 indent_up();
1982                 out << indent() << "result." << prop_name(*x_iter) << " = " << (*x_iter)->get_name() << ";" << endl;
1983                 indent_down();
1984             }
1985             out << indent() << "}" << endl;
1986         }
1987     }
1988
1989     if (!tfunction->is_oneway())
1990     {
1991         out << indent() << "await oprot.WriteMessageBeginAsync(new TMessage(\""
1992                 << correct_function_name_for_async(tfunction->get_name()) << "\", TMessageType.Reply, seqid), cancellationToken); " << endl
1993             << indent() << "await result.WriteAsync(oprot, cancellationToken);" << endl;
1994     }
1995     indent_down();
1996
1997     cleanup_member_name_mapping(xs);
1998
1999     out << indent() << "}" << endl
2000         << indent() << "catch (TTransportException)" << endl
2001         << indent() << "{" << endl
2002         << indent() << "  throw;" << endl
2003         << indent() << "}" << endl
2004         << indent() << "catch (Exception ex)" << endl
2005         << indent() << "{" << endl;
2006     indent_up();
2007
2008     out << indent() << "Console.Error.WriteLine(\"Error occurred in processor:\");" << endl
2009         << indent() << "Console.Error.WriteLine(ex.ToString());" << endl;
2010
2011     if (tfunction->is_oneway())
2012     {
2013         indent_down();
2014         out << indent() << "}" << endl;
2015     }
2016     else
2017     {
2018         out << indent() << "var x = new TApplicationException(TApplicationException.ExceptionType.InternalError,\" Internal error.\");" << endl
2019             << indent() << "await oprot.WriteMessageBeginAsync(new TMessage(\"" << correct_function_name_for_async(tfunction->get_name())
2020             << "\", TMessageType.Exception, seqid), cancellationToken);" << endl
2021             << indent() << "await x.WriteAsync(oprot, cancellationToken);" << endl;
2022         indent_down();
2023
2024         out << indent() << "}" << endl
2025             << indent() << "await oprot.WriteMessageEndAsync(cancellationToken);" << endl
2026             << indent() << "await oprot.Transport.FlushAsync(cancellationToken);" << endl;
2027     }
2028
2029     indent_down();
2030     out << indent() << "}" << endl << endl;
2031 }
2032
2033 void t_netstd_generator::generate_netstd_union_reader(ostream& out, t_struct* tunion)
2034 {
2035     // Thanks to THRIFT-1768, we don't need to check for required fields in the union
2036     const vector<t_field*>& fields = tunion->get_members();
2037     vector<t_field*>::const_iterator f_iter;
2038
2039     out << indent() << "public static async Task<" << tunion->get_name() << "> ReadAsync(TProtocol iprot, CancellationToken cancellationToken)" << endl;
2040     scope_up(out);
2041
2042     out << indent() << "iprot.IncrementRecursionDepth();" << endl;
2043     out << indent() << "try" << endl;
2044     scope_up(out);
2045
2046     out << indent() << tunion->get_name() << " retval;" << endl;
2047     out << indent() << "await iprot.ReadStructBeginAsync(cancellationToken);" << endl;
2048     out << indent() << "TField field = await iprot.ReadFieldBeginAsync(cancellationToken);" << endl;
2049     // we cannot have the first field be a stop -- we must have a single field defined
2050     out << indent() << "if (field.Type == TType.Stop)" << endl;
2051     scope_up(out);
2052     out << indent() << "await iprot.ReadFieldEndAsync(cancellationToken);" << endl;
2053     out << indent() << "retval = new ___undefined();" << endl;
2054     scope_down(out);
2055     out << indent() << "else" << endl;
2056     scope_up(out);
2057     out << indent() << "switch (field.ID)" << endl;
2058     scope_up(out);
2059
2060     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
2061     {
2062         out << indent() << "case " << (*f_iter)->get_key() << ":" << endl;
2063         indent_up();
2064         out << indent() << "if (field.Type == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl;
2065         indent_up();
2066
2067         out << indent() << type_name((*f_iter)->get_type()) << " temp;" << endl;
2068         generate_deserialize_field(out, (*f_iter), "temp", true);
2069         out << indent() << "retval = new " << (*f_iter)->get_name() << "(temp);" << endl;
2070
2071         indent_down();
2072         out << indent() << "} else { " << endl << indent() << " await TProtocolUtil.SkipAsync(iprot, field.Type, cancellationToken);"
2073             << endl << indent() << "  retval = new ___undefined();" << endl << indent() << "}" << endl
2074             << indent() << "break;" << endl;
2075         indent_down();
2076     }
2077
2078     out << indent() << "default: " << endl;
2079     indent_up();
2080     out << indent() << "await TProtocolUtil.SkipAsync(iprot, field.Type, cancellationToken);" << endl << indent()
2081         << "retval = new ___undefined();" << endl;
2082     out << indent() << "break;" << endl;
2083     indent_down();
2084
2085     scope_down(out);
2086
2087     out << indent() << "await iprot.ReadFieldEndAsync(cancellationToken);" << endl;
2088
2089     out << indent() << "if ((await iprot.ReadFieldBeginAsync(cancellationToken)).Type != TType.Stop)" << endl;
2090     scope_up(out);
2091     out << indent() << "throw new TProtocolException(TProtocolException.INVALID_DATA);" << endl;
2092     scope_down(out);
2093
2094     // end of else for TStop
2095     scope_down(out);
2096     out << indent() << "await iprot.ReadStructEndAsync(cancellationToken);" << endl;
2097     out << indent() << "return retval;" << endl;
2098     indent_down();
2099
2100     scope_down(out);
2101     out << indent() << "finally" << endl;
2102     scope_up(out);
2103     out << indent() << "iprot.DecrementRecursionDepth();" << endl;
2104     scope_down(out);
2105
2106     out << indent() << "}" << endl << endl;
2107 }
2108
2109 void t_netstd_generator::generate_deserialize_field(ostream& out, t_field* tfield, string prefix, bool is_propertyless)
2110 {
2111     t_type* type = tfield->get_type();
2112     while (type->is_typedef())
2113     {
2114         type = static_cast<t_typedef*>(type)->get_type();
2115     }
2116
2117     if (type->is_void())
2118     {
2119         throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " + prefix + tfield->get_name();
2120     }
2121
2122     string name = prefix + (is_propertyless ? "" : prop_name(tfield));
2123
2124     if (type->is_struct() || type->is_xception())
2125     {
2126         generate_deserialize_struct(out, static_cast<t_struct*>(type), name);
2127     }
2128     else if (type->is_container())
2129     {
2130         generate_deserialize_container(out, type, name);
2131     }
2132     else if (type->is_base_type() || type->is_enum())
2133     {
2134         out << indent() << name << " = ";
2135
2136         if (type->is_enum())
2137         {
2138             out << "(" << type_name(type) << ")";
2139         }
2140
2141         out << "await iprot.";
2142
2143         if (type->is_base_type())
2144         {
2145             t_base_type::t_base tbase = static_cast<t_base_type*>(type)->get_base();
2146             switch (tbase)
2147             {
2148             case t_base_type::TYPE_VOID:
2149                 throw "compiler error: cannot serialize void field in a struct: " + name;
2150                 break;
2151             case t_base_type::TYPE_STRING:
2152                 if (type->is_binary())
2153                 {
2154                     out << "ReadBinaryAsync(cancellationToken);";
2155                 }
2156                 else
2157                 {
2158                     out << "ReadStringAsync(cancellationToken);";
2159                 }
2160                 break;
2161             case t_base_type::TYPE_BOOL:
2162                 out << "ReadBoolAsync(cancellationToken);";
2163                 break;
2164             case t_base_type::TYPE_I8:
2165                 out << "ReadByteAsync(cancellationToken);";
2166                 break;
2167             case t_base_type::TYPE_I16:
2168                 out << "ReadI16Async(cancellationToken);";
2169                 break;
2170             case t_base_type::TYPE_I32:
2171                 out << "ReadI32Async(cancellationToken);";
2172                 break;
2173             case t_base_type::TYPE_I64:
2174                 out << "ReadI64Async(cancellationToken);";
2175                 break;
2176             case t_base_type::TYPE_DOUBLE:
2177                 out << "ReadDoubleAsync(cancellationToken);";
2178                 break;
2179             default:
2180                 throw "compiler error: no C# name for base type " + t_base_type::t_base_name(tbase);
2181             }
2182         }
2183         else if (type->is_enum())
2184         {
2185             out << "ReadI32Async(cancellationToken);";
2186         }
2187         out << endl;
2188     }
2189     else
2190     {
2191         printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n", tfield->get_name().c_str(), type_name(type).c_str());
2192     }
2193 }
2194
2195 void t_netstd_generator::generate_deserialize_struct(ostream& out, t_struct* tstruct, string prefix)
2196 {
2197     if (is_union_enabled() && tstruct->is_union())
2198     {
2199         out << indent() << prefix << " = await " << type_name(tstruct) << ".ReadAsync(iprot, cancellationToken);" << endl;
2200     }
2201     else
2202     {
2203         out << indent() << prefix << " = new " << type_name(tstruct) << "();" << endl
2204             << indent() << "await " << prefix << ".ReadAsync(iprot, cancellationToken);" << endl;
2205     }
2206 }
2207
2208 void t_netstd_generator::generate_deserialize_container(ostream& out, t_type* ttype, string prefix)
2209 {
2210     out << indent() << "{" << endl;
2211     indent_up();
2212
2213     string obj;
2214
2215     if (ttype->is_map())
2216     {
2217         obj = tmp("_map");
2218     }
2219     else if (ttype->is_set())
2220     {
2221         obj = tmp("_set");
2222     }
2223     else if (ttype->is_list())
2224     {
2225         obj = tmp("_list");
2226     }
2227
2228     if (ttype->is_map())
2229     {
2230         out << indent() << "TMap " << obj << " = await iprot.ReadMapBeginAsync(cancellationToken);" << endl;
2231     }
2232     else if (ttype->is_set())
2233     {
2234         out << indent() << "TSet " << obj << " = await iprot.ReadSetBeginAsync(cancellationToken);" << endl;
2235     }
2236     else if (ttype->is_list())
2237     {
2238         out << indent() << "TList " << obj << " = await iprot.ReadListBeginAsync(cancellationToken);" << endl;
2239     }
2240
2241     out << indent() << prefix << " = new " << type_name(ttype) << "(" << obj << ".Count);" << endl;
2242     string i = tmp("_i");
2243     out << indent() << "for(int " << i << " = 0; " << i << " < " << obj << ".Count; ++" << i << ")" << endl
2244         << indent() << "{" << endl;
2245     indent_up();
2246
2247     if (ttype->is_map())
2248     {
2249         generate_deserialize_map_element(out, static_cast<t_map*>(ttype), prefix);
2250     }
2251     else if (ttype->is_set())
2252     {
2253         generate_deserialize_set_element(out, static_cast<t_set*>(ttype), prefix);
2254     }
2255     else if (ttype->is_list())
2256     {
2257         generate_deserialize_list_element(out, static_cast<t_list*>(ttype), prefix);
2258     }
2259
2260     indent_down();
2261     out << indent() << "}" << endl;
2262
2263     if (ttype->is_map())
2264     {
2265         out << indent() << "await iprot.ReadMapEndAsync(cancellationToken);" << endl;
2266     }
2267     else if (ttype->is_set())
2268     {
2269         out << indent() << "await iprot.ReadSetEndAsync(cancellationToken);" << endl;
2270     }
2271     else if (ttype->is_list())
2272     {
2273         out << indent() << "await iprot.ReadListEndAsync(cancellationToken);" << endl;
2274     }
2275
2276     indent_down();
2277     out << indent() << "}" << endl;
2278 }
2279
2280 void t_netstd_generator::generate_deserialize_map_element(ostream& out, t_map* tmap, string prefix)
2281 {
2282     string key = tmp("_key");
2283     string val = tmp("_val");
2284
2285     t_field fkey(tmap->get_key_type(), key);
2286     t_field fval(tmap->get_val_type(), val);
2287
2288     out << indent() << declare_field(&fkey) << endl;
2289     out << indent() << declare_field(&fval) << endl;
2290
2291     generate_deserialize_field(out, &fkey);
2292     generate_deserialize_field(out, &fval);
2293
2294     out << indent() << prefix << "[" << key << "] = " << val << ";" << endl;
2295 }
2296
2297 void t_netstd_generator::generate_deserialize_set_element(ostream& out, t_set* tset, string prefix)
2298 {
2299     string elem = tmp("_elem");
2300     t_field felem(tset->get_elem_type(), elem);
2301
2302     out << indent() << declare_field(&felem) << endl;
2303
2304     generate_deserialize_field(out, &felem);
2305
2306     out << indent() << prefix << ".Add(" << elem << ");" << endl;
2307 }
2308
2309 void t_netstd_generator::generate_deserialize_list_element(ostream& out, t_list* tlist, string prefix)
2310 {
2311     string elem = tmp("_elem");
2312     t_field felem(tlist->get_elem_type(), elem);
2313
2314     out << indent() << declare_field(&felem) << endl;
2315
2316     generate_deserialize_field(out, &felem);
2317
2318     out << indent() << prefix << ".Add(" << elem << ");" << endl;
2319 }
2320
2321 void t_netstd_generator::generate_serialize_field(ostream& out, t_field* tfield, string prefix, bool is_propertyless)
2322 {
2323     t_type* type = tfield->get_type();
2324     while (type->is_typedef())
2325     {
2326         type = static_cast<t_typedef*>(type)->get_type();
2327     }
2328
2329     string name = prefix + (is_propertyless ? "" : prop_name(tfield));
2330
2331     if (type->is_void())
2332     {
2333         throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " + name;
2334     }
2335
2336     if (type->is_struct() || type->is_xception())
2337     {
2338         generate_serialize_struct(out, static_cast<t_struct*>(type), name);
2339     }
2340     else if (type->is_container())
2341     {
2342         generate_serialize_container(out, type, name);
2343     }
2344     else if (type->is_base_type() || type->is_enum())
2345     {
2346         out << indent() << "await oprot.";
2347
2348         string nullable_name = name;
2349
2350         if (type->is_base_type())
2351         {
2352             t_base_type::t_base tbase = static_cast<t_base_type*>(type)->get_base();
2353             switch (tbase)
2354             {
2355             case t_base_type::TYPE_VOID:
2356                 throw "compiler error: cannot serialize void field in a struct: " + name;
2357             case t_base_type::TYPE_STRING:
2358                 if (type->is_binary())
2359                 {
2360                     out << "WriteBinaryAsync(";
2361                 }
2362                 else
2363                 {
2364                     out << "WriteStringAsync(";
2365                 }
2366                 out << name << ", cancellationToken);";
2367                 break;
2368             case t_base_type::TYPE_BOOL:
2369                 out << "WriteBoolAsync(" << nullable_name << ", cancellationToken);";
2370                 break;
2371             case t_base_type::TYPE_I8:
2372                 out << "WriteByteAsync(" << nullable_name << ", cancellationToken);";
2373                 break;
2374             case t_base_type::TYPE_I16:
2375                 out << "WriteI16Async(" << nullable_name << ", cancellationToken);";
2376                 break;
2377             case t_base_type::TYPE_I32:
2378                 out << "WriteI32Async(" << nullable_name << ", cancellationToken);";
2379                 break;
2380             case t_base_type::TYPE_I64:
2381                 out << "WriteI64Async(" << nullable_name << ", cancellationToken);";
2382                 break;
2383             case t_base_type::TYPE_DOUBLE:
2384                 out << "WriteDoubleAsync(" << nullable_name << ", cancellationToken);";
2385                 break;
2386             default:
2387                 throw "compiler error: no C# name for base type " + t_base_type::t_base_name(tbase);
2388             }
2389         }
2390         else if (type->is_enum())
2391         {
2392             out << "WriteI32Async((int)" << nullable_name << ", cancellationToken);";
2393         }
2394         out << endl;
2395     }
2396     else
2397     {
2398         printf("DO NOT KNOW HOW TO SERIALIZE '%s%s' TYPE '%s'\n", prefix.c_str(), tfield->get_name().c_str(), type_name(type).c_str());
2399     }
2400 }
2401
2402 void t_netstd_generator::generate_serialize_struct(ostream& out, t_struct* tstruct, string prefix)
2403 {
2404     (void)tstruct;
2405     out << indent() << "await " << prefix << ".WriteAsync(oprot, cancellationToken);" << endl;
2406 }
2407
2408 void t_netstd_generator::generate_serialize_container(ostream& out, t_type* ttype, string prefix)
2409 {
2410     out << indent() << "{" << endl;
2411     indent_up();
2412
2413     if (ttype->is_map())
2414     {
2415         out << indent() << "await oprot.WriteMapBeginAsync(new TMap(" << type_to_enum(static_cast<t_map*>(ttype)->get_key_type())
2416             << ", " << type_to_enum(static_cast<t_map*>(ttype)->get_val_type()) << ", " << prefix
2417             << ".Count), cancellationToken);" << endl;
2418     }
2419     else if (ttype->is_set())
2420     {
2421         out << indent() << "await oprot.WriteSetBeginAsync(new TSet(" << type_to_enum(static_cast<t_set*>(ttype)->get_elem_type())
2422             << ", " << prefix << ".Count), cancellationToken);" << endl;
2423     }
2424     else if (ttype->is_list())
2425     {
2426         out << indent() << "await oprot.WriteListBeginAsync(new TList("
2427             << type_to_enum(static_cast<t_list*>(ttype)->get_elem_type()) << ", " << prefix << ".Count), cancellationToken);"
2428             << endl;
2429     }
2430
2431     string iter = tmp("_iter");
2432     if (ttype->is_map())
2433     {
2434         out << indent() << "foreach (" << type_name(static_cast<t_map*>(ttype)->get_key_type()) << " " << iter
2435             << " in " << prefix << ".Keys)";
2436     }
2437     else if (ttype->is_set())
2438     {
2439         out << indent() << "foreach (" << type_name(static_cast<t_set*>(ttype)->get_elem_type()) << " " << iter
2440             << " in " << prefix << ")";
2441     }
2442     else if (ttype->is_list())
2443     {
2444         out << indent() << "foreach (" << type_name(static_cast<t_list*>(ttype)->get_elem_type()) << " " << iter
2445             << " in " << prefix << ")";
2446     }
2447
2448     out << endl;
2449     out << indent() << "{" << endl;
2450     indent_up();
2451
2452     if (ttype->is_map())
2453     {
2454         generate_serialize_map_element(out, static_cast<t_map*>(ttype), iter, prefix);
2455     }
2456     else if (ttype->is_set())
2457     {
2458         generate_serialize_set_element(out, static_cast<t_set*>(ttype), iter);
2459     }
2460     else if (ttype->is_list())
2461     {
2462         generate_serialize_list_element(out, static_cast<t_list*>(ttype), iter);
2463     }
2464
2465     indent_down();
2466     out << indent() << "}" << endl;
2467
2468     if (ttype->is_map())
2469     {
2470         out << indent() << "await oprot.WriteMapEndAsync(cancellationToken);" << endl;
2471     }
2472     else if (ttype->is_set())
2473     {
2474         out << indent() << "await oprot.WriteSetEndAsync(cancellationToken);" << endl;
2475     }
2476     else if (ttype->is_list())
2477     {
2478         out << indent() << "await oprot.WriteListEndAsync(cancellationToken);" << endl;
2479     }
2480
2481     indent_down();
2482     out << indent() << "}" << endl;
2483 }
2484
2485 void t_netstd_generator::generate_serialize_map_element(ostream& out, t_map* tmap, string iter, string map)
2486 {
2487     t_field kfield(tmap->get_key_type(), iter);
2488     generate_serialize_field(out, &kfield, "");
2489     t_field vfield(tmap->get_val_type(), map + "[" + iter + "]");
2490     generate_serialize_field(out, &vfield, "");
2491 }
2492
2493 void t_netstd_generator::generate_serialize_set_element(ostream& out, t_set* tset, string iter)
2494 {
2495     t_field efield(tset->get_elem_type(), iter);
2496     generate_serialize_field(out, &efield, "");
2497 }
2498
2499 void t_netstd_generator::generate_serialize_list_element(ostream& out, t_list* tlist, string iter)
2500 {
2501     t_field efield(tlist->get_elem_type(), iter);
2502     generate_serialize_field(out, &efield, "");
2503 }
2504
2505 void t_netstd_generator::generate_property(ostream& out, t_field* tfield, bool isPublic, bool generateIsset)
2506 {
2507     generate_netstd_property(out, tfield, isPublic, generateIsset, "_");
2508 }
2509
2510 void t_netstd_generator::generate_netstd_property(ostream& out, t_field* tfield, bool isPublic, bool generateIsset, string fieldPrefix)
2511 {
2512     if ((is_serialize_enabled() || is_wcf_enabled()) && isPublic)
2513     {
2514         out << indent() << "[DataMember(Order = 0)]" << endl;
2515     }
2516     bool is_required = field_is_required(tfield);
2517     if (is_required)
2518     {
2519         out << indent() << (isPublic ? "public " : "private ") << type_name(tfield->get_type()) << " " << prop_name(tfield) << " { get; set; }" << endl;
2520     }
2521     else
2522     {
2523         out << indent() << (isPublic ? "public " : "private ")  << type_name(tfield->get_type()) << " " << prop_name(tfield) << endl
2524             << indent() << "{" << endl;
2525         indent_up();
2526
2527         out << indent() << "get" << endl
2528             << indent() << "{" << endl;
2529         indent_up();
2530
2531         bool use_nullable = false;
2532
2533         out << indent() << "return " << fieldPrefix + tfield->get_name() << ";" << endl;
2534         indent_down();
2535         out << indent() << "}" << endl
2536             << indent() << "set" << endl
2537             << indent() << "{" << endl;
2538         indent_up();
2539
2540         if (use_nullable)
2541         {
2542             if (generateIsset)
2543             {
2544                 out << indent() << "__isset." << normalize_name(tfield->get_name()) << " = value.HasValue;" << endl;
2545             }
2546             out << indent() << "if (value.HasValue) this." << fieldPrefix + tfield->get_name() << " = value.Value;" << endl;
2547         }
2548         else
2549         {
2550             if (generateIsset)
2551             {
2552                 out << indent() << "__isset." << normalize_name(tfield->get_name()) << " = true;" << endl;
2553             }
2554             out << indent() << "this." << fieldPrefix + tfield->get_name() << " = value;" << endl;
2555         }
2556
2557         indent_down();
2558         out << indent() << "}" << endl;
2559         indent_down();
2560         out << indent() << "}" << endl;
2561     }
2562     out << endl;
2563 }
2564
2565 string t_netstd_generator::make_valid_csharp_identifier(string const& fromName)
2566 {
2567     string str = fromName;
2568     if (str.empty())
2569     {
2570         return str;
2571     }
2572
2573     // tests rely on this
2574     assert(('A' < 'Z') && ('a' < 'z') && ('0' < '9'));
2575
2576     // if the first letter is a number, we add an additional underscore in front of it
2577     char c = str.at(0);
2578     if (('0' <= c) && (c <= '9'))
2579     {
2580         str = "_" + str;
2581     }
2582
2583     // following chars: letter, number or underscore
2584     for (size_t i = 0; i < str.size(); ++i)
2585     {
2586         c = str.at(i);
2587         if (('A' > c || c > 'Z') && ('a' > c || c > 'z') && ('0' > c || c > '9') && '_' != c)
2588         {
2589             str.replace(i, 1, "_");
2590         }
2591     }
2592
2593     return str;
2594 }
2595
2596 void t_netstd_generator::cleanup_member_name_mapping(void* scope)
2597 {
2598     if (member_mapping_scopes.empty())
2599     {
2600         throw "internal error: cleanup_member_name_mapping() no scope active";
2601     }
2602
2603     member_mapping_scope& active = member_mapping_scopes.back();
2604     if (active.scope_member != scope)
2605     {
2606         throw "internal error: cleanup_member_name_mapping() called for wrong struct";
2607     }
2608
2609     member_mapping_scopes.pop_back();
2610 }
2611
2612 string t_netstd_generator::get_mapped_member_name(string name)
2613 {
2614     if (!member_mapping_scopes.empty())
2615     {
2616         member_mapping_scope& active = member_mapping_scopes.back();
2617         map<string, string>::iterator iter = active.mapping_table.find(name);
2618         if (active.mapping_table.end() != iter)
2619         {
2620             return iter->second;
2621         }
2622     }
2623
2624     pverbose("no mapping for member %s\n", name.c_str());
2625     return name;
2626 }
2627
2628 void t_netstd_generator::prepare_member_name_mapping(t_struct* tstruct)
2629 {
2630     prepare_member_name_mapping(tstruct, tstruct->get_members(), tstruct->get_name());
2631 }
2632
2633 void t_netstd_generator::prepare_member_name_mapping(void* scope, const vector<t_field*>& members, const string& structname)
2634 {
2635     // begin new scope
2636     member_mapping_scopes.emplace_back();
2637     member_mapping_scope& active = member_mapping_scopes.back();
2638     active.scope_member = scope;
2639
2640     // current C# generator policy:
2641     // - prop names are always rendered with an Uppercase first letter
2642     // - struct names are used as given
2643     std::set<string> used_member_names;
2644     vector<t_field*>::const_iterator iter;
2645
2646     // prevent name conflicts with struct (CS0542 error)
2647     used_member_names.insert(structname);
2648
2649     // prevent name conflicts with known methods (THRIFT-2942)
2650     used_member_names.insert("Read");
2651     used_member_names.insert("Write");
2652
2653     for (iter = members.begin(); iter != members.end(); ++iter)
2654     {
2655         string oldname = (*iter)->get_name();
2656         string newname = prop_name(*iter, true);
2657         while (true)
2658         {
2659             // new name conflicts with another member
2660             if (used_member_names.find(newname) != used_member_names.end())
2661             {
2662                 pverbose("struct %s: member %s conflicts with another member\n", structname.c_str(), newname.c_str());
2663                 newname += '_';
2664                 continue;
2665             }
2666
2667             // add always, this helps us to detect edge cases like
2668             // different spellings ("foo" and "Foo") within the same struct
2669             pverbose("struct %s: member mapping %s => %s\n", structname.c_str(), oldname.c_str(), newname.c_str());
2670             active.mapping_table[oldname] = newname;
2671             used_member_names.insert(newname);
2672             break;
2673         }
2674     }
2675 }
2676
2677 string t_netstd_generator::prop_name(t_field* tfield, bool suppress_mapping)
2678 {
2679     string name(tfield->get_name());
2680     if (suppress_mapping)
2681     {
2682         name[0] = toupper(name[0]);
2683     }
2684     else
2685     {
2686         name = get_mapped_member_name(name);
2687     }
2688     return name;
2689 }
2690
2691 string t_netstd_generator::type_name(t_type* ttype)
2692 {
2693     while (ttype->is_typedef())
2694     {
2695         ttype = static_cast<t_typedef*>(ttype)->get_type();
2696     }
2697
2698     if (ttype->is_base_type())
2699     {
2700         return base_type_name(static_cast<t_base_type*>(ttype));
2701     }
2702
2703     if (ttype->is_map())
2704     {
2705         t_map* tmap = static_cast<t_map*>(ttype);
2706         return "Dictionary<" + type_name(tmap->get_key_type()) + ", " + type_name(tmap->get_val_type()) + ">";
2707     }
2708
2709     if (ttype->is_set())
2710     {
2711         t_set* tset = static_cast<t_set*>(ttype);
2712         return "THashSet<" + type_name(tset->get_elem_type()) + ">";
2713     }
2714
2715     if (ttype->is_list())
2716     {
2717         t_list* tlist = static_cast<t_list*>(ttype);
2718         return "List<" + type_name(tlist->get_elem_type()) + ">";
2719     }
2720
2721     t_program* program = ttype->get_program();
2722     if (program != NULL && program != program_)
2723     {
2724         string ns = program->get_namespace("netstd");
2725         if (!ns.empty())
2726         {
2727             return ns + "." + normalize_name(ttype->get_name());
2728         }
2729     }
2730
2731     return normalize_name(ttype->get_name());
2732 }
2733
2734 string t_netstd_generator::base_type_name(t_base_type* tbase)
2735 {
2736     switch (tbase->get_base())
2737     {
2738     case t_base_type::TYPE_VOID:
2739         return "void";
2740     case t_base_type::TYPE_STRING:
2741         {
2742             if (tbase->is_binary())
2743             {
2744                 return "byte[]";
2745             }
2746             return "string";
2747         }
2748     case t_base_type::TYPE_BOOL:
2749         return "bool";
2750     case t_base_type::TYPE_I8:
2751         return "sbyte";
2752     case t_base_type::TYPE_I16:
2753         return "short";
2754     case t_base_type::TYPE_I32:
2755         return "int";
2756     case t_base_type::TYPE_I64:
2757         return "long";
2758     case t_base_type::TYPE_DOUBLE:
2759         return "double";
2760     default:
2761         throw "compiler error: no C# name for base type " + t_base_type::t_base_name(tbase->get_base());
2762     }
2763 }
2764
2765 string t_netstd_generator::declare_field(t_field* tfield, bool init, string prefix)
2766 {
2767     string result = type_name(tfield->get_type()) + " " + prefix + tfield->get_name();
2768     if (init)
2769     {
2770         t_type* ttype = tfield->get_type();
2771         while (ttype->is_typedef())
2772         {
2773             ttype = static_cast<t_typedef*>(ttype)->get_type();
2774         }
2775         if (ttype->is_base_type() && field_has_default(tfield))
2776         {
2777             std::ofstream dummy;
2778             result += " = " + render_const_value(dummy, tfield->get_name(), ttype, tfield->get_value());
2779         }
2780         else if (ttype->is_base_type())
2781         {
2782             t_base_type::t_base tbase = static_cast<t_base_type*>(ttype)->get_base();
2783             switch (tbase)
2784             {
2785             case t_base_type::TYPE_VOID:
2786                 throw "NO T_VOID CONSTRUCT";
2787             case t_base_type::TYPE_STRING:
2788                 result += " = null";
2789                 break;
2790             case t_base_type::TYPE_BOOL:
2791                 result += " = false";
2792                 break;
2793             case t_base_type::TYPE_I8:
2794             case t_base_type::TYPE_I16:
2795             case t_base_type::TYPE_I32:
2796             case t_base_type::TYPE_I64:
2797                 result += " = 0";
2798                 break;
2799             case t_base_type::TYPE_DOUBLE:
2800                 result += " = (double)0";
2801                 break;
2802             }
2803         }
2804         else if (ttype->is_enum())
2805         {
2806             result += " = (" + type_name(ttype) + ")0";
2807         }
2808         else if (ttype->is_container())
2809         {
2810             result += " = new " + type_name(ttype) + "()";
2811         }
2812         else
2813         {
2814             result += " = new " + type_name(ttype) + "()";
2815         }
2816     }
2817     return result + ";";
2818 }
2819
2820 string t_netstd_generator::function_signature(t_function* tfunction, string prefix)
2821 {
2822     t_type* ttype = tfunction->get_returntype();
2823     return type_name(ttype) + " " + normalize_name(prefix + tfunction->get_name()) + "(" + argument_list(tfunction->get_arglist()) + ")";
2824 }
2825
2826 string t_netstd_generator::function_signature_async(t_function* tfunction, string prefix)
2827 {
2828     t_type* ttype = tfunction->get_returntype();
2829     string task = "Task";
2830     if (!ttype->is_void())
2831     {
2832         task += "<" + type_name(ttype) + ">";
2833     }
2834
2835     string result = task + " " + normalize_name(prefix + tfunction->get_name()) + "Async(";
2836     string args = argument_list(tfunction->get_arglist());
2837     result += args;
2838     if (!args.empty())
2839     {
2840         result += ", ";
2841     }
2842     result += "CancellationToken cancellationToken = default(CancellationToken))";
2843
2844     return result;
2845 }
2846
2847 string t_netstd_generator::argument_list(t_struct* tstruct)
2848 {
2849     string result = "";
2850     const vector<t_field*>& fields = tstruct->get_members();
2851     vector<t_field*>::const_iterator f_iter;
2852     bool first = true;
2853     for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter)
2854     {
2855         if (first)
2856         {
2857             first = false;
2858         }
2859         else
2860         {
2861             result += ", ";
2862         }
2863         result += type_name((*f_iter)->get_type()) + " " + normalize_name((*f_iter)->get_name());
2864     }
2865     return result;
2866 }
2867
2868 string t_netstd_generator::type_to_enum(t_type* type)
2869 {
2870     while (type->is_typedef())
2871     {
2872         type = static_cast<t_typedef*>(type)->get_type();
2873     }
2874
2875     if (type->is_base_type())
2876     {
2877         t_base_type::t_base tbase = static_cast<t_base_type*>(type)->get_base();
2878         switch (tbase)
2879         {
2880         case t_base_type::TYPE_VOID:
2881             throw "NO T_VOID CONSTRUCT";
2882         case t_base_type::TYPE_STRING:
2883             return "TType.String";
2884         case t_base_type::TYPE_BOOL:
2885             return "TType.Bool";
2886         case t_base_type::TYPE_I8:
2887             return "TType.Byte";
2888         case t_base_type::TYPE_I16:
2889             return "TType.I16";
2890         case t_base_type::TYPE_I32:
2891             return "TType.I32";
2892         case t_base_type::TYPE_I64:
2893             return "TType.I64";
2894         case t_base_type::TYPE_DOUBLE:
2895             return "TType.Double";
2896         }
2897     }
2898     else if (type->is_enum())
2899     {
2900         return "TType.I32";
2901     }
2902     else if (type->is_struct() || type->is_xception())
2903     {
2904         return "TType.Struct";
2905     }
2906     else if (type->is_map())
2907     {
2908         return "TType.Map";
2909     }
2910     else if (type->is_set())
2911     {
2912         return "TType.Set";
2913     }
2914     else if (type->is_list())
2915     {
2916         return "TType.List";
2917     }
2918
2919     throw "INVALID TYPE IN type_to_enum: " + type->get_name();
2920 }
2921
2922 void t_netstd_generator::generate_netstd_docstring_comment(ostream& out, string contents)
2923 {
2924     docstring_comment(out, "/// <summary>" + endl, "/// ", contents, "/// </summary>" + endl);
2925 }
2926
2927 void t_netstd_generator::generate_netstd_doc(ostream& out, t_field* field)
2928 {
2929     if (field->get_type()->is_enum())
2930     {
2931         string combined_message = field->get_doc() + endl + "<seealso cref=\"" + get_enum_class_name(field->get_type()) + "\"/>";
2932         generate_netstd_docstring_comment(out, combined_message);
2933     }
2934     else
2935     {
2936         generate_netstd_doc(out, static_cast<t_doc*>(field));
2937     }
2938 }
2939
2940 void t_netstd_generator::generate_netstd_doc(ostream& out, t_doc* tdoc)
2941 {
2942     if (tdoc->has_doc())
2943     {
2944         generate_netstd_docstring_comment(out, tdoc->get_doc());
2945     }
2946 }
2947
2948 void t_netstd_generator::generate_netstd_doc(ostream& out, t_function* tfunction)
2949 {
2950     if (tfunction->has_doc())
2951     {
2952         stringstream ps;
2953         const vector<t_field*>& fields = tfunction->get_arglist()->get_members();
2954         vector<t_field*>::const_iterator p_iter;
2955         for (p_iter = fields.begin(); p_iter != fields.end(); ++p_iter)
2956         {
2957             t_field* p = *p_iter;
2958             ps << endl << "<param name=\"" << p->get_name() << "\">";
2959             if (p->has_doc())
2960             {
2961                 string str = p->get_doc();
2962                 str.erase(remove(str.begin(), str.end(), '\n'), str.end());
2963                 ps << str;
2964             }
2965             ps << "</param>";
2966         }
2967
2968         docstring_comment(out,
2969                                    "",
2970                                    "/// ",
2971                                    "<summary>" + endl + tfunction->get_doc() + "</summary>" + ps.str(),
2972                                    "");
2973     }
2974 }
2975
2976 void t_netstd_generator::docstring_comment(ostream& out, const string& comment_start, const string& line_prefix, const string& contents, const string& comment_end)
2977 {
2978     if (comment_start != "")
2979     {
2980         out << indent() << comment_start;
2981     }
2982
2983     stringstream docs(contents, std::ios_base::in);
2984
2985     while (!(docs.eof() || docs.fail()))
2986     {
2987         char line[1024];
2988         docs.getline(line, 1024);
2989
2990         // Just prnt a newline when the line & prefix are empty.
2991         if (strlen(line) == 0 && line_prefix == "" && !docs.eof())
2992         {
2993             out << endl;
2994         }
2995         else if (strlen(line) > 0 || !docs.eof())
2996         { // skip the empty last line
2997             out << indent() << line_prefix << line << endl;
2998         }
2999     }
3000     if (comment_end != "")
3001     {
3002         out << indent() << comment_end;
3003     }
3004 }
3005
3006 string t_netstd_generator::get_enum_class_name(t_type* type)
3007 {
3008     string package = "";
3009     t_program* program = type->get_program();
3010     if (program != NULL && program != program_)
3011     {
3012         package = program->get_namespace("netstd") + ".";
3013     }
3014     return package + type->get_name();
3015 }
3016
3017 THRIFT_REGISTER_GENERATOR(
3018     netstd,
3019     "C#",
3020     "    wcf:             Adds bindings for WCF to generated classes.\n"
3021     "    serial:          Add serialization support to generated classes.\n"
3022     "    union:           Use new union typing, which includes a static read function for union types.\n"
3023 )