http://git-wip-us.apache.org/repos/asf/incubator-hawq/blob/d709f67d/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cocoa_generator.cc ---------------------------------------------------------------------- diff --git a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cocoa_generator.cc b/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cocoa_generator.cc new file mode 100644 index 0000000..a90c937 --- /dev/null +++ b/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cocoa_generator.cc @@ -0,0 +1,2856 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +#include <string> +#include <fstream> +#include <iostream> +#include <vector> + +#include <stdlib.h> +#include <sys/stat.h> +#include <sstream> +#include "t_oop_generator.h" +#include "platform.h" + +using std::map; +using std::ofstream; +using std::ostringstream; +using std::string; +using std::stringstream; +using std::vector; + +static const string endl = "\n"; // avoid ostream << std::endl flushes + +/** + * Objective-C code generator. + * + * mostly copy/pasting/tweaking from mcslee's work. + */ +class t_cocoa_generator : public t_oop_generator { +public: + t_cocoa_generator(t_program* program, + const std::map<std::string, std::string>& parsed_options, + const std::string& option_string) + : t_oop_generator(program) { + (void)option_string; + std::map<std::string, std::string>::const_iterator iter; + + iter = parsed_options.find("log_unexpected"); + log_unexpected_ = (iter != parsed_options.end()); + + iter = parsed_options.find("validate_required"); + validate_required_ = (iter != parsed_options.end()); + + iter = parsed_options.find("async_clients"); + async_clients_ = (iter != parsed_options.end()); + + out_dir_base_ = "gen-cocoa"; + } + + /** + * Init and close methods + */ + + void init_generator(); + void close_generator(); + + void generate_consts(std::vector<t_const*> consts); + + /** + * Program-level generation functions + */ + + void generate_typedef(t_typedef* ttypedef); + void generate_enum(t_enum* tenum); + void generate_struct(t_struct* tstruct); + void generate_xception(t_struct* txception); + void generate_service(t_service* tservice); + + void print_const_value(std::ofstream& out, + std::string name, + t_type* type, + t_const_value* value, + bool defval = false, + bool is_property = false); + std::string render_const_value(ofstream& out, + t_type* type, + t_const_value* value, + bool containerize_it = false); + + void generate_cocoa_struct(t_struct* tstruct, bool is_exception); + void generate_cocoa_struct_interface(std::ofstream& out, + t_struct* tstruct, + bool is_xception = false); + void generate_cocoa_struct_implementation(std::ofstream& out, + t_struct* tstruct, + bool is_xception = false, + bool is_result = false); + void generate_cocoa_struct_initializer_signature(std::ofstream& out, t_struct* tstruct); + void generate_cocoa_struct_init_with_coder_method(ofstream& out, + t_struct* tstruct, + bool is_exception); + void generate_cocoa_struct_encode_with_coder_method(ofstream& out, + t_struct* tstruct, + bool is_exception); + void generate_cocoa_struct_hash_method(ofstream& out, t_struct* tstruct); + void generate_cocoa_struct_is_equal_method(ofstream& out, t_struct* tstruct); + void generate_cocoa_struct_field_accessor_declarations(std::ofstream& out, + t_struct* tstruct, + bool is_exception); + void generate_cocoa_struct_field_accessor_implementations(std::ofstream& out, + t_struct* tstruct, + bool is_exception); + void generate_cocoa_struct_reader(std::ofstream& out, t_struct* tstruct); + void generate_cocoa_struct_result_writer(std::ofstream& out, t_struct* tstruct); + void generate_cocoa_struct_writer(std::ofstream& out, t_struct* tstruct); + void generate_cocoa_struct_validator(std::ofstream& out, t_struct* tstruct); + void generate_cocoa_struct_description(std::ofstream& out, t_struct* tstruct); + + std::string function_result_helper_struct_type(t_function* tfunction); + std::string function_args_helper_struct_type(t_function* tfunction); + void generate_function_helpers(t_function* tfunction); + + /** + * Service-level generation functions + */ + + void generate_cocoa_service_protocol(std::ofstream& out, t_service* tservice); + void generate_cocoa_service_async_protocol(std::ofstream& out, t_service* tservice); + + void generate_cocoa_service_client_interface(std::ofstream& out, t_service* tservice); + void generate_cocoa_service_client_async_interface(std::ofstream& out, t_service* tservice); + + void generate_cocoa_service_client_send_function_implementation(ofstream& out, + t_function* tfunction); + void generate_cocoa_service_client_send_function_invocation(ofstream& out, t_function* tfunction); + void generate_cocoa_service_client_recv_function_implementation(ofstream& out, + t_function* tfunction); + void generate_cocoa_service_client_implementation(std::ofstream& out, t_service* tservice); + void generate_cocoa_service_client_async_implementation(std::ofstream& out, t_service* tservice); + + void generate_cocoa_service_server_interface(std::ofstream& out, t_service* tservice); + void generate_cocoa_service_server_implementation(std::ofstream& out, t_service* tservice); + void generate_cocoa_service_helpers(t_service* tservice); + void generate_service_client(t_service* tservice); + void generate_service_server(t_service* tservice); + void generate_process_function(t_service* tservice, t_function* tfunction); + + /** + * Serialization constructs + */ + + void generate_deserialize_field(std::ofstream& out, t_field* tfield, std::string fieldName); + + void generate_deserialize_struct(std::ofstream& out, t_struct* tstruct, std::string prefix = ""); + + void generate_deserialize_container(std::ofstream& out, t_type* ttype, std::string prefix = ""); + + void generate_deserialize_set_element(std::ofstream& out, t_set* tset, std::string prefix = ""); + + void generate_deserialize_map_element(std::ofstream& out, t_map* tmap, std::string prefix = ""); + + void generate_deserialize_list_element(std::ofstream& out, + t_list* tlist, + std::string prefix = ""); + + void generate_serialize_field(std::ofstream& out, t_field* tfield, std::string prefix = ""); + + void generate_serialize_struct(std::ofstream& out, t_struct* tstruct, std::string fieldName = ""); + + void generate_serialize_container(std::ofstream& out, t_type* ttype, std::string prefix = ""); + + void generate_serialize_map_element(std::ofstream& out, + t_map* tmap, + std::string iter, + std::string map); + + void generate_serialize_set_element(std::ofstream& out, t_set* tmap, std::string iter); + + void generate_serialize_list_element(std::ofstream& out, + t_list* tlist, + std::string index, + std::string listName); + + /** + * Helper rendering functions + */ + + std::string cocoa_prefix(); + std::string cocoa_imports(); + std::string cocoa_thrift_imports(); + std::string type_name(t_type* ttype, bool class_ref = false); + std::string base_type_name(t_base_type* tbase); + std::string declare_field(t_field* tfield); + std::string declare_property(t_field* tfield); + std::string function_signature(t_function* tfunction); + std::string async_function_signature(t_function* tfunction); + std::string argument_list(t_struct* tstruct); + std::string type_to_enum(t_type* ttype); + std::string format_string_for_type(t_type* type); + std::string call_field_setter(t_field* tfield, std::string fieldName); + std::string containerize(t_type* ttype, std::string fieldName); + std::string decontainerize(t_field* tfield, std::string fieldName); + + bool type_can_be_null(t_type* ttype) { + ttype = get_true_type(ttype); + + return ttype->is_container() || ttype->is_struct() || ttype->is_xception() + || ttype->is_string(); + } + +private: + std::string cocoa_prefix_; + std::string constants_declarations_; + + /** + * File streams + */ + + std::ofstream f_header_; + std::ofstream f_impl_; + + bool log_unexpected_; + bool validate_required_; + bool async_clients_; +}; + +/** + * Prepares for file generation by opening up the necessary file output + * streams. + */ +void t_cocoa_generator::init_generator() { + // Make output directory + MKDIR(get_out_dir().c_str()); + cocoa_prefix_ = program_->get_namespace("cocoa"); + + // we have a .h header file... + string f_header_name = program_name_ + ".h"; + string f_header_fullname = get_out_dir() + f_header_name; + f_header_.open(f_header_fullname.c_str()); + + f_header_ << autogen_comment() << endl; + + f_header_ << cocoa_imports() << cocoa_thrift_imports(); + + // ...and a .m implementation file + string f_impl_name = get_out_dir() + program_name_ + ".m"; + f_impl_.open(f_impl_name.c_str()); + + f_impl_ << autogen_comment() << endl; + + f_impl_ << cocoa_imports() << cocoa_thrift_imports() << "#import \"" << f_header_name << "\"" + << endl << endl; +} + +/** + * Prints standard Cocoa imports + * + * @return List of imports for Cocoa libraries + */ +string t_cocoa_generator::cocoa_imports() { + return string() + "#import <Foundation/Foundation.h>\n" + "\n"; +} + +/** + * Prints thrift runtime imports + * + * @return List of imports necessary for thrift runtime + */ +string t_cocoa_generator::cocoa_thrift_imports() { + string result = string() + "#import \"TProtocol.h\"\n" + "#import \"TApplicationException.h\"\n" + + "#import \"TProtocolException.h\"\n" + + "#import \"TProtocolUtil.h\"\n" + + "#import \"TProcessor.h\"\n" + + "#import \"TObjective-C.h\"\n" + + "#import \"TBase.h\"\n" + + "#import \"TAsyncTransport.h\"\n" + + "#import \"TProtocolFactory.h\"\n" + + "#import \"TBaseClient.h\"\n" + + "\n"; + + // Include other Thrift includes + const vector<t_program*>& includes = program_->get_includes(); + for (size_t i = 0; i < includes.size(); ++i) { + result += "#import \"" + includes[i]->get_name() + ".h\"" + "\n"; + } + result += "\n"; + + return result; +} + +/** + * Finish up generation. + */ +void t_cocoa_generator::close_generator() { + // stick our constants declarations at the end of the header file + // since they refer to things we are defining. + f_header_ << constants_declarations_ << endl; +} + +/** + * Generates a typedef. This is just a simple 1-liner in objective-c + * + * @param ttypedef The type definition + */ +void t_cocoa_generator::generate_typedef(t_typedef* ttypedef) { + f_header_ << indent() << "typedef " << type_name(ttypedef->get_type()) << " " << cocoa_prefix_ + << ttypedef->get_symbolic() << ";" << endl << endl; +} + +/** + * Generates code for an enumerated type. In Objective-C, this is + * essentially the same as the thrift definition itself, using the + * enum keyword in Objective-C. For namespace purposes, the name of + * the enum plus an underscore is prefixed onto each element. + * + * @param tenum The enumeration + */ +void t_cocoa_generator::generate_enum(t_enum* tenum) { + f_header_ << indent() << "enum " << cocoa_prefix_ << tenum->get_name() << " {" << endl; + indent_up(); + + vector<t_enum_value*> constants = tenum->get_constants(); + vector<t_enum_value*>::iterator c_iter; + bool first = true; + for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) { + if (first) { + first = false; + } else { + f_header_ << "," << endl; + } + f_header_ << indent() << tenum->get_name() << "_" << (*c_iter)->get_name(); + f_header_ << " = " << (*c_iter)->get_value(); + } + + indent_down(); + f_header_ << endl << "};" << endl << endl; +} + +/** + * Generates a class that holds all the constants. Primitive values + * could have been placed outside this class, but I just put + * everything in for consistency. + */ +void t_cocoa_generator::generate_consts(std::vector<t_const*> consts) { + std::ostringstream const_interface; + string constants_class_name = cocoa_prefix_ + program_name_ + "Constants"; + + const_interface << "@interface " << constants_class_name << " : NSObject "; + scope_up(const_interface); + scope_down(const_interface); + + // getter method for each constant defined. + vector<t_const*>::iterator c_iter; + for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) { + string name = (*c_iter)->get_name(); + t_type* type = (*c_iter)->get_type(); + const_interface << "+ (" << type_name(type) << ") " << name << ";" << endl; + } + + const_interface << "@end"; + + // this gets spit into the header file in ::close_generator + constants_declarations_ = const_interface.str(); + + // static variables in the .m hold all constant values + for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) { + string name = (*c_iter)->get_name(); + t_type* type = (*c_iter)->get_type(); + f_impl_ << "static " << type_name(type) << " " << cocoa_prefix_ << name; + if (!type->is_container() && !type->is_struct()) { + f_impl_ << " = " << render_const_value(f_impl_, type, (*c_iter)->get_value()); + } + f_impl_ << ";" << endl; + } + f_impl_ << endl; + + f_impl_ << "@implementation " << constants_class_name << endl; + + // initialize complex constants when the class is loaded + f_impl_ << "+ (void) initialize "; + scope_up(f_impl_); + + for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) { + if ((*c_iter)->get_type()->is_container() || (*c_iter)->get_type()->is_struct()) { + print_const_value(f_impl_, + cocoa_prefix_ + (*c_iter)->get_name(), + (*c_iter)->get_type(), + (*c_iter)->get_value(), + false, + false); + f_impl_ << ";" << endl; + } + } + scope_down(f_impl_); + + // getter method for each constant + for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) { + string name = (*c_iter)->get_name(); + t_type* type = (*c_iter)->get_type(); + f_impl_ << "+ (" << type_name(type) << ") " << name; + scope_up(f_impl_); + indent(f_impl_) << "return " << cocoa_prefix_ << name << ";" << endl; + scope_down(f_impl_); + } + + f_impl_ << "@end" << endl << endl; +} + +/** + * Generates a struct definition for a thrift data type. This is a class + * with protected data members, read(), write(), and getters and setters. + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_struct(t_struct* tstruct) { + generate_cocoa_struct_interface(f_header_, tstruct, false); + generate_cocoa_struct_implementation(f_impl_, tstruct, false); +} + +/** + * Exceptions are structs, but they inherit from NSException + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_xception(t_struct* txception) { + generate_cocoa_struct_interface(f_header_, txception, true); + generate_cocoa_struct_implementation(f_impl_, txception, true); +} + +/** + * Generate the interface for a struct + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_cocoa_struct_interface(ofstream& out, + t_struct* tstruct, + bool is_exception) { + out << "@interface " << cocoa_prefix_ << tstruct->get_name() << " : "; + + if (is_exception) { + out << "NSException "; + } else { + out << "NSObject "; + } + out << "<TBase, NSCoding> "; + + scope_up(out); + + // members are protected. this is redundant, but explicit. + // f_header_ << endl << "@protected:" << endl; + + const vector<t_field*>& members = tstruct->get_members(); + + // member varialbes + vector<t_field*>::const_iterator m_iter; + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + out << indent() << declare_field(*m_iter) << endl; + } + + if (members.size() > 0) { + out << endl; + // isset fields + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + indent(out) << "BOOL __" << (*m_iter)->get_name() << "_isset;" << endl; + } + } + + scope_down(out); + out << endl; + + // properties + if (members.size() > 0) { + out << "#if TARGET_OS_IPHONE || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)" + << endl; + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + out << indent() << declare_property(*m_iter) << endl; + } + out << "#endif" << endl << endl; + } + + // default initializer + out << indent() << "- (id) init;" << endl; + + // initializer for all fields + if (!members.empty()) { + generate_cocoa_struct_initializer_signature(out, tstruct); + out << ";" << endl; + } + out << endl; + + // read and write + out << "- (void) read: (id <TProtocol>) inProtocol;" << endl; + out << "- (void) write: (id <TProtocol>) outProtocol;" << endl; + out << endl; + + // validator + out << "- (void) validate;" << endl << endl; + + // getters and setters + generate_cocoa_struct_field_accessor_declarations(out, tstruct, is_exception); + + out << "@end" << endl << endl; +} + +/** + * Generate signature for initializer of struct with a parameter for + * each field. + */ +void t_cocoa_generator::generate_cocoa_struct_initializer_signature(ofstream& out, + t_struct* tstruct) { + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + indent(out) << "- (id) initWith"; + for (m_iter = members.begin(); m_iter != members.end();) { + if (m_iter == members.begin()) { + out << capitalize((*m_iter)->get_name()); + } else { + out << (*m_iter)->get_name(); + } + out << ": (" << type_name((*m_iter)->get_type()) << ") " << (*m_iter)->get_name(); + ++m_iter; + if (m_iter != members.end()) { + out << " "; + } + } +} + +/** + * Generate getter and setter declarations for all fields, plus an + * IsSet getter. + */ +void t_cocoa_generator::generate_cocoa_struct_field_accessor_declarations(ofstream& out, + t_struct* tstruct, + bool is_exception) { + (void)is_exception; + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + out << indent() << "#if !__has_feature(objc_arc)" << endl; + out << indent() << "- (" << type_name((*m_iter)->get_type()) << ") " + << decapitalize((*m_iter)->get_name()) << ";" << endl; + out << indent() << "- (void) set" << capitalize((*m_iter)->get_name()) << ": (" + << type_name((*m_iter)->get_type()) << ") " << (*m_iter)->get_name() << ";" << endl; + out << indent() << "#endif" << endl; + out << indent() << "- (BOOL) " << (*m_iter)->get_name() << "IsSet;" << endl << endl; + } +} + +/** + * Generate the initWithCoder method for this struct so it's compatible with + * the NSCoding protocol + */ +void t_cocoa_generator::generate_cocoa_struct_init_with_coder_method(ofstream& out, + t_struct* tstruct, + bool is_exception) { + indent(out) << "- (id) initWithCoder: (NSCoder *) decoder" << endl; + scope_up(out); + if (is_exception) { + // NSExceptions conform to NSCoding, so we can call super + out << indent() << "self = [super initWithCoder: decoder];" << endl; + } else { + out << indent() << "self = [super init];" << endl; + } + + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + out << indent() << "if ([decoder containsValueForKey: @\"" << (*m_iter)->get_name() << "\"])" + << endl; + scope_up(out); + out << indent() << "__" << (*m_iter)->get_name() << " = "; + if (type_can_be_null(t)) { + out << "[[decoder decodeObjectForKey: @\"" << (*m_iter)->get_name() << "\"] retain_stub];" + << endl; + } else if (t->is_enum()) { + out << "[decoder decodeIntForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl; + } else { + t_base_type::t_base tbase = ((t_base_type*)t)->get_base(); + switch (tbase) { + case t_base_type::TYPE_BOOL: + out << "[decoder decodeBoolForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_BYTE: + out << "[decoder decodeIntForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_I16: + out << "[decoder decodeIntForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_I32: + out << "[decoder decodeInt32ForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_I64: + out << "[decoder decodeInt64ForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_DOUBLE: + out << "[decoder decodeDoubleForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl; + break; + default: + throw "compiler error: don't know how to decode thrift type: " + + t_base_type::t_base_name(tbase); + } + } + out << indent() << "__" << (*m_iter)->get_name() << "_isset = YES;" << endl; + scope_down(out); + } + + out << indent() << "return self;" << endl; + scope_down(out); + out << endl; +} + +/** + * Generate the encodeWithCoder method for this struct so it's compatible with + * the NSCoding protocol + */ +void t_cocoa_generator::generate_cocoa_struct_encode_with_coder_method(ofstream& out, + t_struct* tstruct, + bool is_exception) { + indent(out) << "- (void) encodeWithCoder: (NSCoder *) encoder" << endl; + scope_up(out); + if (is_exception) { + // NSExceptions conform to NSCoding, so we can call super + out << indent() << "[super encodeWithCoder: encoder];" << endl; + } + + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + out << indent() << "if (__" << (*m_iter)->get_name() << "_isset)" << endl; + scope_up(out); + // out << indent() << "__" << (*m_iter)->get_name() << " = "; + if (type_can_be_null(t)) { + out << indent() << "[encoder encodeObject: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + } else if (t->is_enum()) { + out << indent() << "[encoder encodeInt: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + } else { + t_base_type::t_base tbase = ((t_base_type*)t)->get_base(); + switch (tbase) { + case t_base_type::TYPE_BOOL: + out << indent() << "[encoder encodeBool: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_BYTE: + out << indent() << "[encoder encodeInt: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_I16: + out << indent() << "[encoder encodeInt: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_I32: + out << indent() << "[encoder encodeInt32: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_I64: + out << indent() << "[encoder encodeInt64: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + break; + case t_base_type::TYPE_DOUBLE: + out << indent() << "[encoder encodeDouble: __" << (*m_iter)->get_name() << " forKey: @\"" + << (*m_iter)->get_name() << "\"];" << endl; + break; + default: + throw "compiler error: don't know how to encode thrift type: " + + t_base_type::t_base_name(tbase); + } + } + scope_down(out); + } + + scope_down(out); + out << endl; +} + +/** + * Generate the hash method for this struct + */ +void t_cocoa_generator::generate_cocoa_struct_hash_method(ofstream& out, t_struct* tstruct) { + indent(out) << "- (NSUInteger) hash" << endl; + scope_up(out); + out << indent() << "NSUInteger hash = 17;" << endl; + + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + out << indent() << "hash = (hash * 31) ^ __" << (*m_iter)->get_name() + << "_isset ? 2654435761 : 0;" << endl; + out << indent() << "if (__" << (*m_iter)->get_name() << "_isset)" << endl; + scope_up(out); + if (type_can_be_null(t)) { + out << indent() << "hash = (hash * 31) ^ [__" << (*m_iter)->get_name() << " hash];" << endl; + } else { + out << indent() << "hash = (hash * 31) ^ [@(__" << (*m_iter)->get_name() << ") hash];" + << endl; + } + scope_down(out); + } + + out << indent() << "return hash;" << endl; + scope_down(out); + out << endl; +} + +/** + * Generate the isEqual method for this struct + */ +void t_cocoa_generator::generate_cocoa_struct_is_equal_method(ofstream& out, t_struct* tstruct) { + indent(out) << "- (BOOL) isEqual: (id) anObject" << endl; + scope_up(out); + + indent(out) << "if (self == anObject) {" << endl; + indent_up(); + indent(out) << "return YES;" << endl; + indent_down(); + indent(out) << "}" << endl; + + string class_name = cocoa_prefix_ + tstruct->get_name(); + + indent(out) << "if (![anObject isKindOfClass:[" << class_name << " class]]) {" << endl; + indent_up(); + indent(out) << "return NO;" << endl; + indent_down(); + indent(out) << "}" << endl; + + indent(out) << class_name << " *other = (" << class_name << " *)anObject;" << endl; + + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + string name = (*m_iter)->get_name(); + if (type_can_be_null(t)) { + out << indent() << "if ((__" << name << "_isset != other->__" << name << "_isset) ||" << endl + << indent() << " " + << "(__" << name << "_isset && " + << "((__" << name << " || other->__" << name << ") && " + << "![__" << name << " isEqual:other->__" << name << "]))) {" << endl; + } else { + out << indent() << "if ((__" << name << "_isset != other->__" << name << "_isset) ||" << endl + << indent() << " " + << "(__" << name << "_isset && " + << "(__" << name << " != other->__" << name << "))) {" << endl; + } + indent_up(); + indent(out) << "return NO;" << endl; + indent_down(); + indent(out) << "}" << endl; + } + + out << indent() << "return YES;" << endl; + scope_down(out); + out << endl; +} + +/** + * Generate struct implementation. + * + * @param tstruct The struct definition + * @param is_exception Is this an exception? + * @param is_result If this is a result it needs a different writer + */ +void t_cocoa_generator::generate_cocoa_struct_implementation(ofstream& out, + t_struct* tstruct, + bool is_exception, + bool is_result) { + indent(out) << "@implementation " << cocoa_prefix_ << tstruct->get_name() << endl << endl; + + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + + // exceptions need to call the designated initializer on NSException + if (is_exception) { + out << indent() << "- (id) init" << endl; + scope_up(out); + out << indent() << "return [super initWithName: @\"" << cocoa_prefix_ << tstruct->get_name() + << "\" reason: @\"unknown\" userInfo: nil];" << endl; + scope_down(out); + out << endl; + } else { + // struct + + // default initializer + // setup instance variables with default values + indent(out) << "- (id) init" << endl; + scope_up(out); + indent(out) << "self = [super init];" << endl; + if (members.size() > 0) { + out << "#if TARGET_OS_IPHONE || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)" + << endl; + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + if ((*m_iter)->get_value() != NULL) { + print_const_value(out, + "self." + (*m_iter)->get_name(), + t, + (*m_iter)->get_value(), + false, + true); + } + } + out << "#endif" << endl; + } + indent(out) << "return self;" << endl; + scope_down(out); + out << endl; + } + + // initializer with all fields as params + if (!members.empty()) { + generate_cocoa_struct_initializer_signature(out, tstruct); + out << endl; + scope_up(out); + if (is_exception) { + out << indent() << "self = [self init];" << endl; + } else { + out << indent() << "self = [super init];" << endl; + } + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + out << indent() << "__" << (*m_iter)->get_name() << " = "; + if (type_can_be_null(t)) { + out << "[" << (*m_iter)->get_name() << " retain_stub];" << endl; + } else { + out << (*m_iter)->get_name() << ";" << endl; + } + out << indent() << "__" << (*m_iter)->get_name() << "_isset = YES;" << endl; + } + + out << indent() << "return self;" << endl; + scope_down(out); + out << endl; + } + + // initWithCoder for NSCoding + generate_cocoa_struct_init_with_coder_method(out, tstruct, is_exception); + // encodeWithCoder for NSCoding + generate_cocoa_struct_encode_with_coder_method(out, tstruct, is_exception); + // hash and isEqual for NSObject + generate_cocoa_struct_hash_method(out, tstruct); + generate_cocoa_struct_is_equal_method(out, tstruct); + + // dealloc + if (!members.empty()) { + out << "- (void) dealloc" << endl; + scope_up(out); + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + if (type_can_be_null(t)) { + indent(out) << "[__" << (*m_iter)->get_name() << " release_stub];" << endl; + } + } + + out << indent() << "[super dealloc_stub];" << endl; + scope_down(out); + out << endl; + } + + // the rest of the methods + generate_cocoa_struct_field_accessor_implementations(out, tstruct, is_exception); + generate_cocoa_struct_reader(out, tstruct); + if (is_result) { + generate_cocoa_struct_result_writer(out, tstruct); + } else { + generate_cocoa_struct_writer(out, tstruct); + } + generate_cocoa_struct_validator(out, tstruct); + generate_cocoa_struct_description(out, tstruct); + + out << "@end" << endl << endl; +} + +/** + * Generates a function to read all the fields of the struct. + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_cocoa_struct_reader(ofstream& out, t_struct* tstruct) { + out << "- (void) read: (id <TProtocol>) inProtocol" << endl; + scope_up(out); + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + // Declare stack tmp variables + indent(out) << "NSString * fieldName;" << endl; + indent(out) << "int fieldType;" << endl; + indent(out) << "int fieldID;" << endl; + out << endl; + + indent(out) << "[inProtocol readStructBeginReturningName: NULL];" << endl; + + // Loop over reading in fields + indent(out) << "while (true)" << endl; + scope_up(out); + + // Read beginning field marker + indent(out) + << "[inProtocol readFieldBeginReturningName: &fieldName type: &fieldType fieldID: &fieldID];" + << endl; + + // Check for field STOP marker and break + indent(out) << "if (fieldType == TType_STOP) { " << endl; + indent_up(); + indent(out) << "break;" << endl; + indent_down(); + indent(out) << "}" << endl; + + // Switch statement on the field we are reading + indent(out) << "switch (fieldID)" << endl; + + scope_up(out); + + // Generate deserialization code for known cases + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + indent(out) << "case " << (*f_iter)->get_key() << ":" << endl; + indent_up(); + indent(out) << "if (fieldType == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl; + indent_up(); + + generate_deserialize_field(out, *f_iter, "fieldValue"); + indent(out) << call_field_setter(*f_iter, "fieldValue") << endl; + // if this is an allocated field, release it since the struct + // is now retaining it + if (type_can_be_null((*f_iter)->get_type())) { + // deserialized strings are autorelease, so don't release them + if (!(get_true_type((*f_iter)->get_type())->is_string())) { + indent(out) << "[fieldValue release_stub];" << endl; + } + } + + indent_down(); + out << indent() << "} else { " << endl; + if (log_unexpected_) { + out << indent() << " NSLog(@\"%s: field ID %i has unexpected type %i. Skipping.\", " + "__PRETTY_FUNCTION__, fieldID, fieldType);" << endl; + } + out << indent() << " [TProtocolUtil skipType: fieldType onProtocol: inProtocol];" << endl + << indent() << "}" << endl << indent() << "break;" << endl; + indent_down(); + } + + // In the default case we skip the field + out << indent() << "default:" << endl; + if (log_unexpected_) { + out << indent() << " NSLog(@\"%s: unexpected field ID %i with type %i. Skipping.\", " + "__PRETTY_FUNCTION__, fieldID, fieldType);" << endl; + } + out << indent() << " [TProtocolUtil skipType: fieldType onProtocol: inProtocol];" << endl + << indent() << " break;" << endl; + + scope_down(out); + + // Read field end marker + indent(out) << "[inProtocol readFieldEnd];" << endl; + + scope_down(out); + + out << indent() << "[inProtocol readStructEnd];" << endl; + + // performs various checks (e.g. check that all required fields are set) + if (validate_required_) { + out << indent() << "[self validate];" << endl; + } + + indent_down(); + out << indent() << "}" << endl << endl; +} + +/** + * Generates a function to write all the fields of the struct + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_cocoa_struct_writer(ofstream& out, t_struct* tstruct) { + out << indent() << "- (void) write: (id <TProtocol>) outProtocol {" << endl; + indent_up(); + + string name = tstruct->get_name(); + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + out << indent() << "[outProtocol writeStructBeginWithName: @\"" << name << "\"];" << endl; + + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + out << indent() << "if (__" << (*f_iter)->get_name() << "_isset) {" << endl; + indent_up(); + bool null_allowed = type_can_be_null((*f_iter)->get_type()); + if (null_allowed) { + out << indent() << "if (__" << (*f_iter)->get_name() << " != nil) {" << endl; + indent_up(); + } + + indent(out) << "[outProtocol writeFieldBeginWithName: @\"" << (*f_iter)->get_name() + << "\" type: " << type_to_enum((*f_iter)->get_type()) + << " fieldID: " << (*f_iter)->get_key() << "];" << endl; + + // Write field contents + generate_serialize_field(out, *f_iter, "__" + (*f_iter)->get_name()); + + // Write field closer + indent(out) << "[outProtocol writeFieldEnd];" << endl; + + if (null_allowed) { + scope_down(out); + } + scope_down(out); + } + // Write the struct map + out << indent() << "[outProtocol writeFieldStop];" << endl << indent() + << "[outProtocol writeStructEnd];" << endl; + + indent_down(); + out << indent() << "}" << endl << endl; +} + +/** + * Generates a function to write all the fields of the struct, which + * is a function result. These fields are only written if they are + * set, and only one of them can be set at a time. + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_cocoa_struct_result_writer(ofstream& out, t_struct* tstruct) { + out << indent() << "- (void) write: (id <TProtocol>) outProtocol {" << endl; + indent_up(); + + string name = tstruct->get_name(); + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + out << indent() << "[outProtocol writeStructBeginWithName: @\"" << name << "\"];" << endl; + + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if (first) { + first = false; + out << endl << indent() << "if "; + } else { + out << " else if "; + } + + out << "(__" << (*f_iter)->get_name() << "_isset) {" << endl; + indent_up(); + + bool null_allowed = type_can_be_null((*f_iter)->get_type()); + if (null_allowed) { + out << indent() << "if (__" << (*f_iter)->get_name() << " != nil) {" << endl; + indent_up(); + } + + indent(out) << "[outProtocol writeFieldBeginWithName: @\"" << (*f_iter)->get_name() + << "\" type: " << type_to_enum((*f_iter)->get_type()) + << " fieldID: " << (*f_iter)->get_key() << "];" << endl; + + // Write field contents + generate_serialize_field(out, *f_iter, "__" + (*f_iter)->get_name()); + + // Write field closer + indent(out) << "[outProtocol writeFieldEnd];" << endl; + + if (null_allowed) { + indent_down(); + indent(out) << "}" << endl; + } + + indent_down(); + indent(out) << "}"; + } + // Write the struct map + out << endl << indent() << "[outProtocol writeFieldStop];" << endl << indent() + << "[outProtocol writeStructEnd];" << endl; + + indent_down(); + out << indent() << "}" << endl << endl; +} + +/** + * Generates a function to perform various checks + * (e.g. check that all required fields are set) + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_cocoa_struct_validator(ofstream& out, t_struct* tstruct) { + out << indent() << "- (void) validate {" << endl; + indent_up(); + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + out << indent() << "// check for required fields" << endl; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = (*f_iter); + if ((*f_iter)->get_req() == t_field::T_REQUIRED) { + out << indent() << "if (!__" << field->get_name() << "_isset) {" << endl << indent() + << " @throw [TProtocolException exceptionWithName: @\"TProtocolException\"" << endl + << indent() << " reason: @\"Required field '" + << (*f_iter)->get_name() << "' is not set.\"];" << endl << indent() << "}" << endl; + } + } + + indent_down(); + out << indent() << "}" << endl << endl; +} + +/** + * Generate property accessor methods for all fields in the struct. + * getter, setter, isset getter. + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_cocoa_struct_field_accessor_implementations(ofstream& out, + t_struct* tstruct, + bool is_exception) { + (void)is_exception; + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = *f_iter; + t_type* type = get_true_type(field->get_type()); + std::string field_name = field->get_name(); + std::string cap_name = field_name; + cap_name[0] = toupper(cap_name[0]); + + // Simple getter + indent(out) << "- (" << type_name(type) << ") "; + out << field_name << " {" << endl; + indent_up(); + if (!type_can_be_null(type)) { + indent(out) << "return __" << field_name << ";" << endl; + } else { + indent(out) << "return [[__" << field_name << " retain_stub] autorelease_stub];" << endl; + } + indent_down(); + indent(out) << "}" << endl << endl; + + // Simple setter + indent(out) << "- (void) set" << cap_name << ": (" << type_name(type) << ") " << field_name + << " {" << endl; + indent_up(); + if (!type_can_be_null(type)) { + indent(out) << "__" << field_name << " = " << field_name << ";" << endl; + } else { + indent(out) << "[" << field_name << " retain_stub];" << endl; + indent(out) << "[__" << field_name << " release_stub];" << endl; + indent(out) << "__" << field_name << " = " << field_name << ";" << endl; + } + indent(out) << "__" << field_name << "_isset = YES;" << endl; + indent_down(); + indent(out) << "}" << endl << endl; + + // IsSet + indent(out) << "- (BOOL) " << field_name << "IsSet {" << endl; + indent_up(); + indent(out) << "return __" << field_name << "_isset;" << endl; + indent_down(); + indent(out) << "}" << endl << endl; + + // Unsetter - do we need this? + indent(out) << "- (void) unset" << cap_name << " {" << endl; + indent_up(); + if (type_can_be_null(type)) { + indent(out) << "[__" << field_name << " release_stub];" << endl; + indent(out) << "__" << field_name << " = nil;" << endl; + } + indent(out) << "__" << field_name << "_isset = NO;" << endl; + indent_down(); + indent(out) << "}" << endl << endl; + } +} + +/** + * Generates a description method for the given struct + * + * @param tstruct The struct definition + */ +void t_cocoa_generator::generate_cocoa_struct_description(ofstream& out, t_struct* tstruct) { + out << indent() << "- (NSString *) description {" << endl; + indent_up(); + + out << indent() << "NSMutableString * ms = [NSMutableString stringWithString: @\"" + << cocoa_prefix_ << tstruct->get_name() << "(\"];" << endl; + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if (first) { + first = false; + indent(out) << "[ms appendString: @\"" << (*f_iter)->get_name() << ":\"];" << endl; + } else { + indent(out) << "[ms appendString: @\"," << (*f_iter)->get_name() << ":\"];" << endl; + } + t_type* ttype = (*f_iter)->get_type(); + indent(out) << "[ms appendFormat: @\"" << format_string_for_type(ttype) << "\", __" + << (*f_iter)->get_name() << "];" << endl; + } + out << indent() << "[ms appendString: @\")\"];" << endl << indent() + << "return [NSString stringWithString: ms];" << endl; + + indent_down(); + indent(out) << "}" << endl << endl; +} + +/** + * Generates a thrift service. In Objective-C this consists of a + * protocol definition, a client interface and a client implementation. + * + * @param tservice The service definition + */ +void t_cocoa_generator::generate_service(t_service* tservice) { + generate_cocoa_service_protocol(f_header_, tservice); + generate_cocoa_service_client_interface(f_header_, tservice); + generate_cocoa_service_server_interface(f_header_, tservice); + generate_cocoa_service_helpers(tservice); + generate_cocoa_service_client_implementation(f_impl_, tservice); + generate_cocoa_service_server_implementation(f_impl_, tservice); + if (async_clients_) { + generate_cocoa_service_async_protocol(f_header_, tservice); + generate_cocoa_service_client_async_interface(f_header_, tservice); + generate_cocoa_service_client_async_implementation(f_impl_, tservice); + } +} + +/** + * Generates structs for all the service return types + * + * @param tservice The service + */ +void t_cocoa_generator::generate_cocoa_service_helpers(t_service* tservice) { + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + t_struct* ts = (*f_iter)->get_arglist(); + generate_cocoa_struct_interface(f_impl_, ts, false); + generate_cocoa_struct_implementation(f_impl_, ts, false, false); + generate_function_helpers(*f_iter); + } +} + +string t_cocoa_generator::function_result_helper_struct_type(t_function* tfunction) { + if (tfunction->is_oneway()) { + return capitalize(tfunction->get_name()); + } else { + return capitalize(tfunction->get_name()) + "_result"; + } +} + +string t_cocoa_generator::function_args_helper_struct_type(t_function* tfunction) { + return tfunction->get_name() + "_args"; +} + +/** + * Generates a struct and helpers for a function. + * + * @param tfunction The function + */ +void t_cocoa_generator::generate_function_helpers(t_function* tfunction) { + if (tfunction->is_oneway()) { + return; + } + + // create a result struct with a success field of the return type, + // and a field for each type of exception thrown + t_struct result(program_, function_result_helper_struct_type(tfunction)); + t_field success(tfunction->get_returntype(), "success", 0); + if (!tfunction->get_returntype()->is_void()) { + result.append(&success); + } + + t_struct* xs = tfunction->get_xceptions(); + const vector<t_field*>& fields = xs->get_members(); + vector<t_field*>::const_iterator f_iter; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + result.append(*f_iter); + } + + // generate the result struct + generate_cocoa_struct_interface(f_impl_, &result, false); + generate_cocoa_struct_implementation(f_impl_, &result, false, true); +} + +/** + * Generates a service protocol definition. + * + * @param tservice The service to generate a protocol definition for + */ +void t_cocoa_generator::generate_cocoa_service_protocol(ofstream& out, t_service* tservice) { + out << "@protocol " << cocoa_prefix_ << tservice->get_name() << " <NSObject>" << endl; + + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + out << "- " << function_signature(*f_iter) << ";" + << " // throws "; + t_struct* xs = (*f_iter)->get_xceptions(); + const std::vector<t_field*>& xceptions = xs->get_members(); + vector<t_field*>::const_iterator x_iter; + for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) { + out << type_name((*x_iter)->get_type()) + ", "; + } + out << "TException" << endl; + } + out << "@end" << endl << endl; +} + +/** + * Generates an asynchronous service protocol definition. + * + * @param tservice The service to generate a protocol definition for + */ +void t_cocoa_generator::generate_cocoa_service_async_protocol(ofstream& out, t_service* tservice) { + out << "@protocol " << cocoa_prefix_ << tservice->get_name() << "Async" + << " <NSObject>" << endl; + + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + out << "- " << async_function_signature(*f_iter) << ";" << endl; + } + out << "@end" << endl << endl; +} + +/** + * Generates a service client interface definition. + * + * @param tservice The service to generate a client interface definition for + */ +void t_cocoa_generator::generate_cocoa_service_client_interface(ofstream& out, + t_service* tservice) { + out << "@interface " << cocoa_prefix_ << tservice->get_name() << "Client : TBaseClient <" + << cocoa_prefix_ << tservice->get_name() << "> "; + + out << "- (id) initWithProtocol: (id <TProtocol>) protocol;" << endl; + out << "- (id) initWithInProtocol: (id <TProtocol>) inProtocol outProtocol: (id <TProtocol>) " + "outProtocol;" << endl; + out << "@end" << endl << endl; +} + +/** + * Generates a service client interface definition. + * + * @param tservice The service to generate a client interface definition for + */ +void t_cocoa_generator::generate_cocoa_service_client_async_interface(ofstream& out, + t_service* tservice) { + out << "@interface " << cocoa_prefix_ << tservice->get_name() << "ClientAsync : TBaseClient <" + << cocoa_prefix_ << tservice->get_name() << "Async> "; + + scope_up(out); + out << indent() << "id <TAsyncTransport> asyncTransport;" << endl; + scope_down(out); + + out << "- (id) initWithProtocolFactory: (id <TProtocolFactory>) factory " + "transport: (id <TAsyncTransport>) transport;" << endl; + out << "@end" << endl << endl; +} + +/** + * Generates a service server interface definition. In other words, the TProcess implementation for + *the + * service definition. + * + * @param tservice The service to generate a client interface definition for + */ +void t_cocoa_generator::generate_cocoa_service_server_interface(ofstream& out, + t_service* tservice) { + out << "@interface " << cocoa_prefix_ << tservice->get_name() + << "Processor : NSObject <TProcessor> "; + + scope_up(out); + out << indent() << "id <" << cocoa_prefix_ << tservice->get_name() << "> mService;" << endl; + out << indent() << "NSDictionary * mMethodMap;" << endl; + scope_down(out); + + out << "- (id) initWith" << tservice->get_name() << ": (id <" << cocoa_prefix_ + << tservice->get_name() << ">) service;" << endl; + out << "- (id<" << cocoa_prefix_ << tservice->get_name() << ">) service;" << endl; + + out << "@end" << endl << endl; +} + +void t_cocoa_generator::generate_cocoa_service_client_send_function_implementation( + ofstream& out, + t_function* tfunction) { + string funname = tfunction->get_name(); + + t_function send_function(g_type_void, + string("send_") + tfunction->get_name(), + tfunction->get_arglist()); + + string argsname = tfunction->get_name() + "_args"; + + // Open function + indent(out) << "- " << function_signature(&send_function) << endl; + scope_up(out); + + // Serialize the request + out << indent() << "[outProtocol writeMessageBeginWithName: @\"" << funname << "\"" + << (tfunction->is_oneway() ? " type: TMessageType_ONEWAY" : " type: TMessageType_CALL") + << " sequenceID: 0];" << endl; + + out << indent() << "[outProtocol writeStructBeginWithName: @\"" << argsname << "\"];" << endl; + + // write out function parameters + t_struct* arg_struct = tfunction->get_arglist(); + const vector<t_field*>& fields = arg_struct->get_members(); + vector<t_field*>::const_iterator fld_iter; + for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) { + string fieldName = (*fld_iter)->get_name(); + if (type_can_be_null((*fld_iter)->get_type())) { + out << indent() << "if (" << fieldName << " != nil)"; + scope_up(out); + } + out << indent() << "[outProtocol writeFieldBeginWithName: @\"" << fieldName + << "\"" + " type: " << type_to_enum((*fld_iter)->get_type()) + << " fieldID: " << (*fld_iter)->get_key() << "];" << endl; + + generate_serialize_field(out, *fld_iter, fieldName); + + out << indent() << "[outProtocol writeFieldEnd];" << endl; + + if (type_can_be_null((*fld_iter)->get_type())) { + indent_down(); + out << indent() << "}" << endl; + } + } + + out << indent() << "[outProtocol writeFieldStop];" << endl; + out << indent() << "[outProtocol writeStructEnd];" << endl; + out << indent() << "[outProtocol writeMessageEnd];" << endl; + scope_down(out); + out << endl; +} + +void t_cocoa_generator::generate_cocoa_service_client_recv_function_implementation( + ofstream& out, + t_function* tfunction) { + t_struct noargs(program_); + t_function recv_function(tfunction->get_returntype(), + string("recv_") + tfunction->get_name(), + &noargs, + tfunction->get_xceptions()); + // Open function + indent(out) << "- " << function_signature(&recv_function) << endl; + scope_up(out); + + // TODO(mcslee): Message validation here, was the seqid etc ok? + + // check for an exception + out << indent() << "TApplicationException * x = [self checkIncomingMessageException];" << endl + << indent() << "if (x != nil)"; + scope_up(out); + out << indent() << "@throw x;" << endl; + scope_down(out); + + // FIXME - could optimize here to reduce creation of temporary objects. + string resultname = function_result_helper_struct_type(tfunction); + out << indent() << cocoa_prefix_ << resultname << " * result = [[[" << cocoa_prefix_ << resultname + << " alloc] init] autorelease_stub];" << endl; + indent(out) << "[result read: inProtocol];" << endl; + indent(out) << "[inProtocol readMessageEnd];" << endl; + + // Careful, only return _result if not a void function + if (!tfunction->get_returntype()->is_void()) { + out << indent() << "if ([result successIsSet]) {" << endl << indent() + << " return [result success];" << endl << indent() << "}" << endl; + } + + t_struct* xs = tfunction->get_xceptions(); + const std::vector<t_field*>& xceptions = xs->get_members(); + vector<t_field*>::const_iterator x_iter; + for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) { + out << indent() << "if ([result " << (*x_iter)->get_name() << "IsSet]) {" << endl << indent() + << " @throw [result " << (*x_iter)->get_name() << "];" << endl << indent() << "}" << endl; + } + + // If you get here it's an exception, unless a void function + if (tfunction->get_returntype()->is_void()) { + indent(out) << "return;" << endl; + } else { + out << indent() << "@throw [TApplicationException exceptionWithType: " + "TApplicationException_MISSING_RESULT" << endl << indent() + << " reason: @\"" << tfunction->get_name() + << " failed: unknown result\"];" << endl; + } + + // Close function + scope_down(out); + out << endl; +} + +/** + * Generates an invocation of a given 'send_' function. + * + * @param tfunction The service to generate an implementation for + */ +void t_cocoa_generator::generate_cocoa_service_client_send_function_invocation( + ofstream& out, + t_function* tfunction) { + t_struct* arg_struct = tfunction->get_arglist(); + const vector<t_field*>& fields = arg_struct->get_members(); + vector<t_field*>::const_iterator fld_iter; + indent(out) << "[self send_" << tfunction->get_name(); + bool first = true; + for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) { + string fieldName = (*fld_iter)->get_name(); + out << " "; + if (first) { + first = false; + out << ": " << fieldName; + } else { + out << fieldName << ": " << fieldName; + } + } + out << "];" << endl; +} + +/** + * Generates a service client implementation. + * + * @param tservice The service to generate an implementation for + */ +void t_cocoa_generator::generate_cocoa_service_client_implementation(ofstream& out, + t_service* tservice) { + out << "@implementation " << cocoa_prefix_ << tservice->get_name() << "Client" << endl; + + // initializers + out << "- (id) initWithProtocol: (id <TProtocol>) protocol" << endl; + scope_up(out); + out << indent() << "return [self initWithInProtocol: protocol outProtocol: protocol];" << endl; + scope_down(out); + out << endl; + + out << "- (id) initWithInProtocol: (id <TProtocol>) anInProtocol outProtocol: (id <TProtocol>) " + "anOutProtocol" << endl; + scope_up(out); + out << indent() << "self = [super init];" << endl; + out << indent() << "inProtocol = [anInProtocol retain_stub];" << endl; + out << indent() << "outProtocol = [anOutProtocol retain_stub];" << endl; + out << indent() << "return self;" << endl; + scope_down(out); + out << endl; + + // generate client method implementations + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::const_iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + + generate_cocoa_service_client_send_function_implementation(out, *f_iter); + + if (!(*f_iter)->is_oneway()) { + generate_cocoa_service_client_recv_function_implementation(out, *f_iter); + } + + // Open function + indent(out) << "- " << function_signature(*f_iter) << endl; + scope_up(out); + generate_cocoa_service_client_send_function_invocation(out, *f_iter); + + out << indent() << "[[outProtocol transport] flush];" << endl; + if (!(*f_iter)->is_oneway()) { + out << indent(); + if (!(*f_iter)->get_returntype()->is_void()) { + out << "return "; + } + out << "[self recv_" << (*f_iter)->get_name() << "];" << endl; + } + scope_down(out); + out << endl; + } + indent_down(); + out << "@end" << endl << endl; +} + +/** + * Generates a service client implementation for its asynchronous interface. + * + * @param tservice The service to generate an implementation for + */ +void t_cocoa_generator::generate_cocoa_service_client_async_implementation(ofstream& out, + t_service* tservice) { + out << "@implementation " << cocoa_prefix_ << tservice->get_name() << "ClientAsync" << endl + << endl << "- (id) initWithProtocolFactory: (id <TProtocolFactory>) factory " + "transport: (id <TAsyncTransport>) transport;" << endl; + + scope_up(out); + out << indent() << "self = [super init];" << endl; + out << indent() << "inProtocol = [[factory newProtocolOnTransport:transport] retain_stub];" + << endl; + out << indent() << "outProtocol = inProtocol;" << endl; + out << indent() << "asyncTransport = transport;" << endl; + out << indent() << "return self;" << endl; + scope_down(out); + out << endl; + + // generate client method implementations + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::const_iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + + generate_cocoa_service_client_send_function_implementation(out, *f_iter); + + if (!(*f_iter)->is_oneway()) { + generate_cocoa_service_client_recv_function_implementation(out, *f_iter); + } + + // Open function + indent(out) << "- " << async_function_signature(*f_iter) << endl; + scope_up(out); + indent(out) << "@try {" << endl; + indent_up(); + generate_cocoa_service_client_send_function_invocation(out, *f_iter); + indent_down(); + out << indent() << "} @catch(TException * texception) {" << endl; + indent_up(); + out << indent() << "failureBlock(texception);" << endl << indent() << "return;" << endl; + indent_down(); + indent(out) << "}" << endl; + + out << indent() << "[asyncTransport flush:^{" << endl; + indent_up(); + + out << indent() << "@try {" << endl; + indent_up(); + + string recv_invocation = "[self recv_" + (*f_iter)->get_name() + "]"; + if (!(*f_iter)->is_oneway() && (*f_iter)->get_returntype()->is_void()) { + out << indent() << recv_invocation << ";" << endl; + } + out << indent() << "responseBlock("; + if (!(*f_iter)->is_oneway() && !(*f_iter)->get_returntype()->is_void()) { + out << recv_invocation; + } + out << ");" << endl; + + indent_down(); + + out << indent() << "} @catch(TException * texception) {" << endl; + indent_up(); + + out << indent() << "failureBlock(texception);" << endl; + + indent_down(); + out << indent() << "}" << endl; + + indent_down(); + out << indent() << "} failure:failureBlock];" << endl; + + scope_down(out); + + out << endl; + } + + out << "@end" << endl << endl; +} + +/** + * Generates a service server implementation. In other words the actual TProcessor implementation + * for the service. + * + * @param tservice The service to generate an implementation for + */ +void t_cocoa_generator::generate_cocoa_service_server_implementation(ofstream& out, + t_service* tservice) { + out << "@implementation " << cocoa_prefix_ << tservice->get_name() << "Processor" << endl; + + // initializer + out << endl; + out << "- (id) initWith" << tservice->get_name() << ": (id <" << cocoa_prefix_ + << tservice->get_name() << ">) service" << endl; + scope_up(out); + out << indent() << "self = [super init];" << endl; + out << indent() << "if (!self) {" << endl; + out << indent() << " return nil;" << endl; + out << indent() << "}" << endl; + out << indent() << "mService = [service retain_stub];" << endl; + out << indent() << "mMethodMap = [[NSMutableDictionary dictionary] retain_stub];" << endl; + + // generate method map for routing incoming calls + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::const_iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + string funname = (*f_iter)->get_name(); + scope_up(out); + out << indent() << "SEL s = @selector(process_" << funname + << "_withSequenceID:inProtocol:outProtocol:);" << endl; + out << indent() << "NSMethodSignature * sig = [self methodSignatureForSelector: s];" << endl; + out << indent() + << "NSInvocation * invocation = [NSInvocation invocationWithMethodSignature: sig];" << endl; + out << indent() << "[invocation setSelector: s];" << endl; + out << indent() << "[invocation retainArguments];" << endl; + out << indent() << "[mMethodMap setValue: invocation forKey: @\"" << funname << "\"];" << endl; + scope_down(out); + } + out << indent() << "return self;" << endl; + scope_down(out); + + // implementation of the 'service' method which returns the service associated with this + // processor + out << endl; + out << indent() << "- (id<" << cocoa_prefix_ << tservice->get_name() << ">) service" << endl; + out << indent() << "{" << endl; + out << indent() << " return [[mService retain_stub] autorelease_stub];" << endl; + out << indent() << "}" << endl; + + // implementation of the TProcess method, which dispatches the incoming call using the method map + out << endl; + out << indent() << "- (BOOL) processOnInputProtocol: (id <TProtocol>) inProtocol" << endl; + out << indent() << " outputProtocol: (id <TProtocol>) outProtocol" << endl; + out << indent() << "{" << endl; + out << indent() << " NSString * messageName;" << endl; + out << indent() << " int messageType;" << endl; + out << indent() << " int seqID;" << endl; + out << indent() << " [inProtocol readMessageBeginReturningName: &messageName" << endl; + out << indent() << " type: &messageType" << endl; + out << indent() << " sequenceID: &seqID];" << endl; + out << indent() << " NSInvocation * invocation = [mMethodMap valueForKey: messageName];" << endl; + out << indent() << " if (invocation == nil) {" << endl; + out << indent() << " [TProtocolUtil skipType: TType_STRUCT onProtocol: inProtocol];" << endl; + out << indent() << " [inProtocol readMessageEnd];" << endl; + out << indent() << " TApplicationException * x = [TApplicationException exceptionWithType: " + "TApplicationException_UNKNOWN_METHOD reason: [NSString stringWithFormat: " + "@\"Invalid method name: '%@'\", messageName]];" << endl; + out << indent() << " [outProtocol writeMessageBeginWithName: messageName" << endl; + out << indent() << " type: TMessageType_EXCEPTION" << endl; + out << indent() << " sequenceID: seqID];" << endl; + out << indent() << " [x write: outProtocol];" << endl; + out << indent() << " [outProtocol writeMessageEnd];" << endl; + out << indent() << " [[outProtocol transport] flush];" << endl; + out << indent() << " return YES;" << endl; + out << indent() << " }" << endl; + out << indent() << " // NSInvocation does not conform to NSCopying protocol" << endl; + out << indent() << " NSInvocation * i = [NSInvocation invocationWithMethodSignature: " + "[invocation methodSignature]];" << endl; + out << indent() << " [i setSelector: [invocation selector]];" << endl; + out << indent() << " [i setArgument: &seqID atIndex: 2];" << endl; + out << indent() << " [i setArgument: &inProtocol atIndex: 3];" << endl; + out << indent() << " [i setArgument: &outProtocol atIndex: 4];" << endl; + out << indent() << " [i setTarget: self];" << endl; + out << indent() << " [i invoke];" << endl; + out << indent() << " return YES;" << endl; + out << indent() << "}" << endl; + + // generate a process_XXXX method for each service function, which reads args, calls the service, + // and writes results + functions = tservice->get_functions(); + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + out << endl; + string funname = (*f_iter)->get_name(); + out << indent() << "- (void) process_" << funname + << "_withSequenceID: (int32_t) seqID inProtocol: (id<TProtocol>) inProtocol outProtocol: " + "(id<TProtocol>) outProtocol" << endl; + scope_up(out); + string argstype = cocoa_prefix_ + function_args_helper_struct_type(*f_iter); + out << indent() << argstype << " * args = [[" << argstype << " alloc] init];" << endl; + out << indent() << "[args read: inProtocol];" << endl; + out << indent() << "[inProtocol readMessageEnd];" << endl; + + // prepare the result if not oneway + if (!(*f_iter)->is_oneway()) { + string resulttype = cocoa_prefix_ + function_result_helper_struct_type(*f_iter); + out << indent() << resulttype << " * result = [[" << resulttype << " alloc] init];" << endl; + } + + // make the call to the actual service object + out << indent(); + if (!(*f_iter)->get_returntype()->is_void()) { + out << "[result setSuccess: "; + } + out << "[mService " << funname; + // supplying arguments + t_struct* arg_struct = (*f_iter)->get_arglist(); + const vector<t_field*>& fields = arg_struct->get_members(); + vector<t_field*>::const_iterator fld_iter; + bool first = true; + for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) { + string fieldName = (*fld_iter)->get_name(); + if (first) { + first = false; + out << ": [args " << fieldName << "]"; + } else { + out << " " << fieldName << ": [args " << fieldName << "]"; + } + } + out << "]"; + if (!(*f_iter)->get_returntype()->is_void()) { + out << "]"; + } + out << ";" << endl; + + // write out the result if not oneway + if (!(*f_iter)->is_oneway()) { + out << indent() << "[outProtocol writeMessageBeginWithName: @\"" << funname << "\"" << endl; + out << indent() << " type: TMessageType_REPLY" << endl; + out << indent() << " sequenceID: seqID];" << endl; + out << indent() << "[result write: outProtocol];" << endl; + out << indent() << "[outProtocol writeMessageEnd];" << endl; + out << indent() << "[[outProtocol transport] flush];" << endl; + out << indent() << "[result release_stub];" << endl; + } + out << indent() << "[args release_stub];" << endl; + + scope_down(out); + } + + // dealloc + out << endl; + out << "- (void) dealloc" << endl; + scope_up(out); + out << indent() << "[mService release_stub];" << endl; + out << indent() << "[mMethodMap release_stub];" << endl; + out << indent() << "[super dealloc_stub];" << endl; + scope_down(out); + out << endl; + + out << "@end" << endl << endl; +} + +/** + * Deserializes a field of any type. + * + * @param tfield The field + * @param fieldName The variable name for this field + */ +void t_cocoa_generator::generate_deserialize_field(ofstream& out, + t_field* tfield, + string fieldName) { + t_type* type = get_true_type(tfield->get_type()); + + if (type->is_void()) { + throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " + tfield->get_name(); + } + + if (type->is_struct() || type->is_xception()) { + generate_deserialize_struct(out, (t_struct*)type, fieldName); + } else if (type->is_container()) { + generate_deserialize_container(out, type, fieldName); + } else if (type->is_base_type() || type->is_enum()) { + indent(out) << type_name(type) << " " << fieldName << " = [inProtocol "; + + if (type->is_base_type()) { + t_base_type::t_base tbase = ((t_base_type*)type)->get_base(); + switch (tbase) { + case t_base_type::TYPE_VOID: + throw "compiler error: cannot serialize void field in a struct: " + tfield->get_name(); + break; + case t_base_type::TYPE_STRING: + if (((t_base_type*)type)->is_binary()) { + out << "readBinary];"; + } else { + out << "readString];"; + } + break; + case t_base_type::TYPE_BOOL: + out << "readBool];"; + break; + case t_base_type::TYPE_BYTE: + out << "readByte];"; + break; + case t_base_type::TYPE_I16: + out << "readI16];"; + break; + case t_base_type::TYPE_I32: + out << "readI32];"; + break; + case t_base_type::TYPE_I64: + out << "readI64];"; + break; + case t_base_type::TYPE_DOUBLE: + out << "readDouble];"; + break; + default: + throw "compiler error: no Objective-C name for base type " + + t_base_type::t_base_name(tbase); + } + } else if (type->is_enum()) { + out << "readI32];"; + } + out << endl; + } else { + printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n", + tfield->get_name().c_str(), + type_name(type).c_str()); + } +} + +/** + * Generates an unserializer for a struct, allocates the struct and invokes read: + */ +void t_cocoa_generator::generate_deserialize_struct(ofstream& out, + t_struct* tstruct, + string fieldName) { + indent(out) << type_name(tstruct) << fieldName << " = [[" << type_name(tstruct, true) + << " alloc] init];" << endl; + indent(out) << "[" << fieldName << " read: inProtocol];" << endl; +} + +/** + * Deserializes a container by reading its size and then iterating + */ +void t_cocoa_generator::generate_deserialize_container(ofstream& out, + t_type* ttype, + string fieldName) { + string size = tmp("_size"); + indent(out) << "int " << size << ";" << endl; + + // Declare variables, read header + if (ttype->is_map()) { + indent(out) << "[inProtocol readMapBeginReturningKeyType: NULL valueType: NULL size: &" << size + << "];" << endl; + indent(out) << "NSMutableDictionary * " << fieldName + << " = [[NSMutableDictionary alloc] initWithCapacity: " << size << "];" << endl; + } else if (ttype->is_set()) { + indent(out) << "[inProtocol readSetBeginReturningElementType: NULL size: &" << size << "];" + << endl; + indent(out) << "NSMutableSet * " << fieldName + << " = [[NSMutableSet alloc] initWithCapacity: " << size << "];" << endl; + } else if (ttype->is_list()) { + indent(out) << "[inProtocol readListBeginReturningElementType: NULL size: &" << size << "];" + << endl; + indent(out) << "NSMutableArray * " << fieldName + << " = [[NSMutableArray alloc] initWithCapacity: " << size << "];" << endl; + } + // FIXME - the code above does not verify that the element types of + // the containers being read match the element types of the + // containers we are reading into. Does that matter? + + // For loop iterates over elements + string i = tmp("_i"); + indent(out) << "int " << i << ";" << endl << indent() << "for (" << i << " = 0; " << i << " < " + << size << "; " + << "++" << i << ")" << endl; + + scope_up(out); + + if (ttype->is_map()) { + generate_deserialize_map_element(out, (t_map*)ttype, fieldName); + } else if (ttype->is_set()) { + generate_deserialize_set_element(out, (t_set*)ttype, fieldName); + } else if (ttype->is_list()) { + generate_deserialize_list_element(out, (t_list*)ttype, fieldName); + } + + scope_down(out); + + // Read container end + if (ttype->is_map()) { + indent(out) << "[inProtocol readMapEnd];" << endl; + } else if (ttype->is_set()) { + indent(out) << "[inProtocol readSetEnd];" << endl; + } else if (ttype->is_list()) { + indent(out) << "[inProtocol readListEnd];" << endl; + } +} + +/** + * Take a variable of a given type and wrap it in code to make it + * suitable for putting into a container, if necessary. Basically, + * wrap scaler primitives in NSNumber objects. + */ +string t_cocoa_generator::containerize(t_type* ttype, string fieldName) { + // FIXME - optimize here to avoid autorelease pool? + ttype = get_true_type(ttype); + if (ttype->is_enum()) { + return "[NSNumber numberWithInt: " + fieldName + "]"; + } else if (ttype->is_base_type()) { + t_base_type::t_base tbase = ((t_base_type*)ttype)->get_base(); + switch (tbase) { + case t_base_type::TYPE_VOID: + throw "can't containerize void"; + case t_base_type::TYPE_BOOL: + return "[NSNumber numberWithBool: " + fieldName + "]"; + case t_base_type::TYPE_BYTE: + return "[NSNumber numberWithUnsignedChar: " + fieldName + "]"; + case t_base_type::TYPE_I16: + return "[NSNumber numberWithShort: " + fieldName + "]"; + case t_base_type::TYPE_I32: + return "[NSNumber numberWithLong: " + fieldName + "]"; + case t_base_type::TYPE_I64: + return "[NSNumber numberWithLongLong: " + fieldName + "]"; + case t_base_type::TYPE_DOUBLE: + return "[NSNumber numberWithDouble: " + fieldName + "]"; + default: + break; + } + } + + // do nothing + return fieldName; +} + +/** + * Generates code to deserialize a map element + */ +void t_cocoa_generator::generate_deserialize_map_element(ofstream& out, + t_map* tmap, + string fieldName) { + string key = tmp("_key"); + string val = tmp("_val"); + t_type* keyType = tmap->get_key_type(); + t_type* valType = tmap->get_val_type(); + t_field fkey(keyType, key); + t_field fval(valType, val); + + generate_deserialize_field(out, &fkey, key); + generate_deserialize_field(out, &fval, val); + + indent(out) << "[" << fieldName << " setObject: " << containerize(valType, val) + << " forKey: " << containerize(keyType, key) << "];" << endl; + + if (type_can_be_null(keyType)) { + if (!(get_true_type(keyType)->is_string())) { + indent(out) << "[" << containerize(keyType, key) << " release_stub];" << endl; + } + } + + if (type_can_be_null(valType)) { + if (!(get_true_type(valType)->is_string())) { + indent(out) << "[" << containerize(valType, val) << " release_stub];" << endl; + } + } +} + +/** + * Deserializes a set element + */ +void t_cocoa_generator::generate_deserialize_set_element(ofstream& out, + t_set* tset, + string fieldName) { + string elem = tmp("_elem"); + t_type* type = tset->get_elem_type(); + t_field felem(type, elem); + + generate_deserialize_field(out, &felem, elem); + + indent(out) << "[" << fieldName << " addObject: " << containerize(type, elem) << "];" << endl; + + if (type_can_be_null(type)) { + // deserialized strings are autorelease, so don't release them + if (!(get_true_type(type)->is_string())) { + indent(out) << "[" << containerize(type, elem) << " release_stub];" << endl; + } + } +} + +/** + * Deserializes a list element + */ +void t_cocoa_generator::generate_deserialize_list_element(ofstream& out, + t_list* tlist, + string fieldName) { + string elem = tmp("_elem"); + t_type* type = tlist->get_elem_type(); + t_field felem(type, elem); + + generate_deserialize_field(out, &felem, elem); + + indent(out) << "[" << fieldName << " addObject: " << containerize(type, elem) << "];" << endl; + + if (type_can_be_null(type)) { + if (!(get_true_type(type)->is_string())) { + indent(out) << "[" << containerize(type, elem) << " release_stub];" << endl; + } + } +} + +/** + * Serializes a field of any type. + * + * @param tfield The field to serialize + * @param fieldName Name to of the variable holding the field + */ +void t_cocoa_generator::generate_serialize_field(ofstream& out, t_field* tfield, string fieldName) { + t_type* type = get_true_type(tfield->get_type()); + + // Do nothing for void types + if (type->is_void()) { + throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " + tfield->get_name(); + } + + if (type->is_struct() || type->is_xception()) { + generate_serialize_struct(out, (t_struct*)type, fieldName); + } else if (type->is_container()) { + generate_serialize_container(out, type, fieldName); + } else if (type->is_base_type() || type->is_enum()) { + indent(out) << "[outProtocol "; + + if (type->is_base_type()) { + t_base_type::t_base tbase = ((t_base_type*)type)->get_base(); + switch (tbase) { + case t_base_type::TYPE_VOID: + throw "compiler error: cannot serialize void field in a struct: " + fieldName; + break; + case t_base_type::TYPE_STRING: + if (((t_base_type*)type)->is_binary()) { + out << "writeBinary: " << fieldName << "];"; + } else { + out << "writeString: " << fieldName << "];"; + } + break; + case t_base_type::TYPE_BOOL: + out << "writeBool: " << fieldName << "];"; + break; + case t_base_type::TYPE_BYTE: + out << "writeByte: " << fieldName << "];"; + break; + case t_base_type::TYPE_I16: + out << "writeI16: " << fieldName << "];"; + break; + case t_base_type::TYPE_I32: + out << "writeI32: " << fieldName << "];"; + break; + case t_base_type::TYPE_I64: + out << "writeI64: " << fieldName << "];"; + break; + case t_base_type::TYPE_DOUBLE: + out << "writeDouble: " << fieldName << "];"; + break; + default: + throw "compiler error: no Objective-C name for base type " + + t_base_type::t_base_name(tbase); + } + } else if (type->is_enum()) { + out << "writeI32: " << fieldName << "];"; + } + out << endl; + } else { + printf("DO NOT KNOW HOW TO SERIALIZE FIELD '%s' TYPE '%s'\n", + tfield->get_name().c_str(), + type_name(type).c_str()); + } +} + +/** + * Serialize a struct. + * + * @param tstruct The struct to serialize + * @param fieldName Name of variable holding struct + */ +void t_cocoa_generator::generate_serialize_struct(ofstream& out, + t_struct* tstruct, + string fieldName) { + (void)tstruct; + out << indent() << "[" << fieldName << " write: outProtocol];" << endl; +} + +/** + * Serializes a container by writing its size then the elements. + * + * @param ttype The type of container + * @param fieldName Name of variable holding container + */ +void t_cocoa_generator::generate_serialize_container(ofstream& out, + t_type* ttype, + string fieldName) { + scope_up(out); + + if (ttype->is_map()) { + indent(out) << "[outProtocol writeMapBeginWithKeyType: " + << type_to_enum(((t_map*)ttype)->get_key_type()) + << " valueType: " << type_to_enum(((t_map*)ttype)->get_val_type()) << " size: [" + << fieldName << " count]];" << endl; + } else if (ttype->is_set()) { + indent(out) << "[outProtocol writeSetBeginWithElementType: " + << type_to_enum(((t_set*)ttype)->get_elem_type()) << " size: [" << fieldName + << " count]];" << endl; + } else if (ttype->is_list()) { + indent(out) << "[outProtocol writeListBeginWithElementType: " + << type_to_enum(((t_list*)ttype)->get_elem_type()) << " size: [" << fieldName + << " count]];" << endl; + } + + string iter = tmp("_iter"); + string key; + if (ttype->is_map()) { + key = tmp("key"); + indent(out) << "NSEnumerator * " << iter << " = [" << fieldName << " keyEnumerator];" << endl; + indent(out) << "id " << key << ";" << endl; + indent(out) << "while ((" << key << " = [" << iter << " nextObject]))" << endl; + } else if (ttype->is_set()) { + key = tmp("obj"); + indent(out) << "NSEnumerator * " << iter << " = [" << fieldName << " objectEnumerator];" + << endl; + indent(out) << "id " << key << ";" << endl; + indent(out) << "while ((" << key << " = [" << iter << " nextObject]))" << endl; + } else if (ttype->is_list()) { + key = tmp("idx"); + indent(out) << "int " << key << ";" << endl; + indent(out) << "for (" << key << " = 0; " << key << " < [" << fieldName << " count]; " << key + << "++)" << endl; + } + + scope_up(out); + + if (ttype->is_map()) { + generate_serialize_map_element(out, (t_map*)ttype, key, fieldName); + } else if (ttype->is_set()) { + generate_serialize_set_element(out, (t_set*)ttype, key); + } else if (ttype->is_list()) { + generate_serialize_list_element(out, (t_list*)ttype, key, fieldName); + } + + scope_down(out); + + if (ttype->is_map()) { + indent(out) << "[outProtocol writeMapEnd];" << endl; + } else if (ttype->is_set()) { + indent(out) << "[outProtocol writeSetEnd];" << endl; + } else if (ttype->is_list()) { + indent(out) << "[outProtocol writeListEnd];" << endl; + } + + scope_down(out); +} + +/** + * Given a field variable name, wrap it in code that converts it to a + * primitive type, if necessary. + */ +string t_cocoa_generator::decontainerize(t_field* tfield, string fieldName) { + t_type* ttype = get_true_type(tfield->get_type()); + if (ttype->is_enum()) { + return "[" + fieldName + " intValue]"; + } else if (ttype->is_base_type()) { + t_base_type::t_base tbase = ((t_base_type*)ttype)->get_base(); + switch (tbase) { + case t_base_type::TYPE_VOID: + throw "can't decontainerize void"; + case t_base_type::TYPE_BOOL: + return "[" + fieldName + " boolValue]"; + case t_base_type::TYPE_BYTE: + return "[" + fieldName + " unsignedCharValue]"; + case t_base_type::TYPE_I16: + return "[" + fieldName + " shortValue]"; + case t_base_type::TYPE_I32: + return "[" + fieldName + " longValue]"; + case t_base_type::TYPE_I64: + return "[" + fieldName + " longLongValue]"; + case t_base_type::TYPE_DOUBLE: + return "[" + fieldName + " doubleValue]"; + default: + break; + } + } + + // do nothing + return fieldName; +} + +/** + * Serializes the members of a map. + */ +void t_cocoa_generator::generate_serialize_map_element(ofstream& out, + t_map* tmap, + string key, + string mapName) { + t_field kfield(tmap->get_key_type(), key); + generate_serialize_field(out, &kfield, decontainerize(&kfield, key)); + t_field vfield(tmap->get_val_type(), "[" + mapName + " objectForKey: " + key + "]"); + generate_serialize_field(out, &vfield, decontainerize(&vfield, vfield.get_name())); +} + +/** + * Serializes the members of a set. + */ +void t_cocoa_generator::generate_serialize_set_element(ofstream& out, + t_set* tset, + string elementName) { + t_field efield(tset->get_elem_type(), elementName); + generate_serialize_field(out, &efield, decontainerize(&efield, elementName)); +} + +/** + * Serializes the members of a list. + */ +void t_cocoa_generator::generate_serialize_list_element(ofstream& out, + t_list* tlist, + string index, + string listName) { + t_field efield(tlist->get_elem_type(), "[" + listName + " objectAtIndex: " + index + "]"); + generate_serialize_field(out, &efield, decontainerize(&efield, efield.get_name())); +} + +/** + * Returns an Objective-C name + * + * @param ttype The type + * @param class_ref Do we want a Class reference istead of a type reference? + * @return Java type name, i.e. HashMap<Key,Value> + */ +string t_cocoa_generator::type_name(t_type* ttype, bool class_ref) { + if (ttype->is_typedef()) { + t_program* program = ttype->get_program(); + return program ? (program->get_namespace("cocoa") + ttype->get_name()) : ttype->get_name(); + } + + string result; + if (ttype->is_base_type()) { + return base_type_name((t_base_type*)ttype); + } else if (ttype->is_enum()) { + return "int"; + } else if (ttype->is_map()) { + result = "NSMutableDictionary"; + } else if (ttype->is_set()) { + result = "NSMutableSet"; + } else if (ttype->is_list()) { + result = "NSMu
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