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Posted to commits@thrift.apache.org by ns...@apache.org on 2016/09/25 16:43:10 UTC
[21/55] [abbrv] [partial] thrift git commit: THRIFT-2835 Add
possibility to distribute generators separately from thrift core,
and load them dynamically
http://git-wip-us.apache.org/repos/asf/thrift/blob/052abc39/compiler/cpp/src/thrift/generate/t_cocoa_generator.cc
----------------------------------------------------------------------
diff --git a/compiler/cpp/src/thrift/generate/t_cocoa_generator.cc b/compiler/cpp/src/thrift/generate/t_cocoa_generator.cc
new file mode 100644
index 0000000..eba94c0
--- /dev/null
+++ b/compiler/cpp/src/thrift/generate/t_cocoa_generator.cc
@@ -0,0 +1,3301 @@
+/*
+ * 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 "thrift/platform.h"
+#include "thrift/generate/t_oop_generator.h"
+
+using std::map;
+using std::ostream;
+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;
+
+ log_unexpected_ = false;
+ validate_required_ = false;
+ async_clients_ = false;
+ promise_kit_ = false;
+ debug_descriptions_ = false;
+ pods_ = false;
+ for( iter = parsed_options.begin(); iter != parsed_options.end(); ++iter) {
+ if( iter->first.compare("log_unexpected") == 0) {
+ log_unexpected_ = true;
+ } else if( iter->first.compare("validate_required") == 0) {
+ validate_required_ = true;
+ } else if( iter->first.compare("async_clients") == 0) {
+ async_clients_ = true;
+ } else if( iter->first.compare("promise_kit") == 0) {
+ promise_kit_ = true;
+ } else if( iter->first.compare("debug_descriptions") == 0) {
+ debug_descriptions_ = true;
+ } else if( iter->first.compare("pods") == 0) {
+ pods_ = true;
+ } else {
+ throw "unknown option cocoa:" + iter->first;
+ }
+ }
+
+ 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(ostream& out,
+ string name,
+ t_type* type,
+ t_const_value* value,
+ bool defval = false);
+ std::string render_const_value(ostream& out,
+ t_type* type,
+ t_const_value* value,
+ bool box_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_copy_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,
+ 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_service *tservice, t_function* tfunction);
+ std::string function_args_helper_struct_type(t_service* tservice, t_function* tfunction);
+ void generate_function_helpers(t_service *tservice, 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_service* tservice,
+ t_function* tfunction,
+ bool needs_protocol);
+ void generate_cocoa_service_client_send_function_invocation(ofstream& out, t_function* tfunction);
+ void generate_cocoa_service_client_send_async_function_invocation(ofstream& out,
+ t_function* tfunction,
+ string failureBlockName);
+ void generate_cocoa_service_client_recv_function_implementation(ofstream& out,
+ t_service* tservice,
+ t_function* tfunction,
+ bool needs_protocol);
+ 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, bool needs_mutable = false);
+ std::string element_type_name(t_type* ttype);
+ std::string base_type_name(t_base_type* tbase);
+ std::string declare_property(t_field* tfield);
+ std::string declare_property_isset(t_field* tfield);
+ std::string declare_property_unset(t_field* tfield);
+ std::string invalid_return_statement(t_function* tfunction);
+ std::string function_signature(t_function* tfunction, bool include_error);
+ std::string async_function_signature(t_function* tfunction, bool include_error);
+ std::string promise_function_signature(t_function* tfunction);
+ std::string argument_list(t_struct* tstruct, string protocol_name, bool include_error);
+ std::string type_to_enum(t_type* ttype);
+ std::string format_string_for_type(t_type* type);
+ std::string format_cast_for_type(t_type* type);
+ std::string call_field_setter(t_field* tfield, std::string fieldName);
+ std::string box(t_type *ttype, std::string field_name);
+ std::string unbox(t_type* ttype, std::string field_name);
+ std::string getter_name(string field_name);
+ std::string setter_name(string field_name);
+
+ 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_;
+ int error_constant_;
+
+ /**
+ * File streams
+ */
+
+ std::ofstream f_header_;
+ std::ofstream f_impl_;
+
+ bool log_unexpected_;
+ bool validate_required_;
+ bool async_clients_;
+ bool promise_kit_;
+ bool debug_descriptions_;
+ bool pods_;
+};
+
+/**
+ * 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 = cocoa_prefix_ + capitalize(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 = cocoa_prefix_ + capitalize(program_name_) + ".m";
+ string f_impl_fullname = get_out_dir() + f_impl_name;
+ f_impl_.open(f_impl_fullname.c_str());
+
+ f_impl_ << autogen_comment() << endl;
+
+ f_impl_ << cocoa_imports() << cocoa_thrift_imports() << "#import \"" << f_header_name << "\""
+ << endl << endl;
+
+ error_constant_ = 60000;
+}
+
+/**
+ * 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() {
+
+ vector<string> includes_list;
+ includes_list.push_back("TProtocol.h");
+ includes_list.push_back("TProtocolFactory.h");
+ includes_list.push_back("TApplicationError.h");
+ includes_list.push_back("TProtocolError.h");
+ includes_list.push_back("TProtocolUtil.h");
+ includes_list.push_back("TProcessor.h");
+ includes_list.push_back("TBase.h");
+ includes_list.push_back("TAsyncTransport.h");
+ includes_list.push_back("TBaseClient.h");
+
+ std::ostringstream includes;
+
+ vector<string>::const_iterator i_iter;
+ for (i_iter=includes_list.begin(); i_iter!=includes_list.end(); ++i_iter) {
+ includes << "#import ";
+ if (pods_) {
+ includes << "<Thrift/" << *i_iter << ">";
+ } else {
+ includes << "\"" << *i_iter << "\"";
+ }
+ includes << endl;
+ }
+
+ includes << endl;
+
+ if (promise_kit_) {
+ includes << "#import ";
+ if (pods_) {
+ includes << "<PromiseKit/PromiseKit.h>";
+ } else {
+ includes << "\"PromiseKit.h\"";
+ }
+ includes << endl;
+ }
+
+ // Include other Thrift includes
+ const vector<t_program*>& other_includes = program_->get_includes();
+ for (size_t i = 0; i < other_includes.size(); ++i) {
+ includes << "#import \""
+ << other_includes[i]->get_namespace("cocoa")
+ << capitalize(other_includes[i]->get_name())
+ << ".h\"" << endl;
+ }
+
+ includes << endl;
+
+ return includes.str();
+}
+
+/**
+ * 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) {
+ if (ttypedef->get_type()->is_map()) {
+ t_map *map = (t_map *)ttypedef->get_type();
+ if (map->get_key_type()->is_struct()) {
+ f_header_ << indent() << "@class " << type_name(map->get_key_type(), true) << ";" << endl;
+ }
+ if (map->get_val_type()->is_struct()) {
+ f_header_ << indent() << "@class " << type_name(map->get_val_type(), true) << ";" << endl;
+ }
+ }
+ else if (ttypedef->get_type()->is_set()) {
+ t_set *set = (t_set *)ttypedef->get_type();
+ if (set->get_elem_type()->is_struct()) {
+ f_header_ << indent() << "@class " << type_name(set->get_elem_type(), true) << ";" << endl;
+ }
+ }
+ else if (ttypedef->get_type()->is_list()) {
+ t_list *list = (t_list *)ttypedef->get_type();
+ if (list->get_elem_type()->is_struct()) {
+ f_header_ << indent() << "@class " << type_name(list->get_elem_type(), true) << ";" << endl;
+ }
+ }
+ f_header_ << indent() << "typedef " << type_name(ttypedef->get_type()) << " " << cocoa_prefix_
+ << ttypedef->get_symbolic() << ";" << endl << endl;
+ if (ttypedef->get_type()->is_container()) {
+ f_header_ << indent() << "typedef " << type_name(ttypedef->get_type(), false, true) << " " << cocoa_prefix_
+ << "Mutable" << ttypedef->get_symbolic() << ";" << endl << endl;
+ }
+}
+
+/**
+ * Generates code for an enumerated type. In Objective-C, this is
+ * essentially the same as the thrift definition itself, instead using
+ * NS_ENUM keyword in Objective-C. For namespace purposes, the name of
+ * the enum is prefixed to each element in keeping with Cocoa & Swift
+ * standards.
+ *
+ * @param tenum The enumeration
+ */
+void t_cocoa_generator::generate_enum(t_enum* tenum) {
+ f_header_ << indent() << "typedef NS_ENUM(SInt32, " << 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() << cocoa_prefix_ << 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.
+ */
+void t_cocoa_generator::generate_consts(std::vector<t_const*> consts) {
+ std::ostringstream const_interface;
+
+ const_interface << "FOUNDATION_EXPORT NSString *" << cocoa_prefix_ << capitalize(program_name_) << "ErrorDomain;" << endl
+ << endl;
+
+
+ bool needs_class = false;
+
+ // Public constants for base types & strings
+ vector<t_const*>::iterator c_iter;
+ for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) {
+ t_type* type = (*c_iter)->get_type()->get_true_type();
+ if (!type->is_container() && !type->is_struct()) {
+ const_interface << "FOUNDATION_EXPORT " << type_name(type) << " "
+ << cocoa_prefix_ << capitalize((*c_iter)->get_name()) << ";" << endl;
+ }
+ else {
+ needs_class = true;
+ }
+ }
+
+
+ string constants_class_name = cocoa_prefix_ + capitalize(program_name_) + "Constants";
+
+ if (needs_class) {
+
+ const_interface << endl;
+
+ const_interface << "@interface " << constants_class_name << " : NSObject ";
+ scope_up(const_interface);
+ scope_down(const_interface);
+
+ // getter method for each constant defined.
+ for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) {
+ string name = (*c_iter)->get_name();
+ t_type* type = (*c_iter)->get_type()->get_true_type();
+ if (type->is_container() || type->is_struct()) {
+ t_type* type = (*c_iter)->get_type();
+ const_interface << endl << "+ (" << type_name(type) << ") " << name << ";" << endl;
+ }
+ }
+
+ const_interface << endl << "@end";
+ }
+
+ // this gets spit into the header file in ::close_generator
+ constants_declarations_ = const_interface.str();
+
+ f_impl_ << "NSString *" << cocoa_prefix_ << capitalize(program_name_) << "ErrorDomain = "
+ << "@\"" << cocoa_prefix_ << capitalize(program_name_) << "ErrorDomain\";" << endl << endl;
+
+ // variables in the .m hold all simple 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_ << type_name(type) << " " << cocoa_prefix_ << name;
+ t_type* ttype = type->get_true_type();
+ if (!ttype->is_container() && !ttype->is_struct()) {
+ f_impl_ << " = " << render_const_value(f_impl_, type, (*c_iter)->get_value());
+ }
+ f_impl_ << ";" << endl;
+ }
+ f_impl_ << endl;
+
+ if (needs_class) {
+
+ f_impl_ << "@implementation " << constants_class_name << endl << 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) {
+ t_type* ttype = (*c_iter)->get_type()->get_true_type();
+ if (ttype->is_container() || ttype->is_struct()) {
+ f_impl_ << endl;
+ print_const_value(f_impl_,
+ cocoa_prefix_ + (*c_iter)->get_name(),
+ (*c_iter)->get_type(),
+ (*c_iter)->get_value(),
+ 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()->get_true_type();
+ if (type->is_container() || type->is_struct()) {
+ f_impl_ << endl << "+ (" << 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) {
+
+ if (is_exception) {
+ out << "enum {" << endl
+ << " " << cocoa_prefix_ << capitalize(program_name_) << "Error" << tstruct->get_name() << " = -" << error_constant_++ << endl
+ << "};" << endl
+ << endl;
+ }
+
+ out << "@interface " << cocoa_prefix_ << tstruct->get_name() << " : ";
+
+ if (is_exception) {
+ out << "NSError ";
+ } else {
+ out << "NSObject ";
+ }
+ out << "<TBase, NSCoding, NSCopying> " << endl;
+
+ out << endl;
+
+ // properties
+ const vector<t_field*>& members = tstruct->get_members();
+ if (members.size() > 0) {
+ vector<t_field*>::const_iterator m_iter;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ out << indent() << declare_property(*m_iter) << endl;
+ out << indent() << declare_property_isset(*m_iter) << endl;
+ out << indent() << declare_property_unset(*m_iter) << endl;
+ out << endl;
+ }
+ }
+
+ out << endl;
+
+ // initializer for all fields
+ if (!members.empty()) {
+ generate_cocoa_struct_initializer_signature(out, tstruct);
+ out << ";" << endl;
+ }
+ out << endl;
+
+ 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) << "- (instancetype) 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 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) << "- (instancetype) initWithCoder: (NSCoder *) decoder" << endl;
+ scope_up(out);
+
+ if (is_exception) {
+ // NSExceptions conform to NSCoding, so we can call super
+ indent(out) << "self = [super initWithCoder: decoder];" << endl;
+ } else {
+ indent(out) << "self = [super init];" << endl;
+ }
+
+ indent(out) << "if (self) ";
+ scope_up(out);
+
+ 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() << "\"];"
+ << 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_I8:
+ 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);
+ }
+
+ 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);
+ 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_I8:
+ 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 copy method for this struct
+ */
+void t_cocoa_generator::generate_cocoa_struct_copy_method(ofstream& out, t_struct* tstruct, bool is_exception) {
+ out << indent() << "- (instancetype) copyWithZone:(NSZone *)zone" << endl;
+ scope_up(out);
+
+ if (is_exception) {
+ out << indent() << type_name(tstruct) << " val = [" << cocoa_prefix_ << tstruct->get_name() << " errorWithDomain: self.domain code: self.code userInfo: self.userInfo];" << endl;
+ } else {
+ out << indent() << type_name(tstruct) << " val = [" << cocoa_prefix_ << tstruct->get_name() << " new];" << 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);
+ if (type_can_be_null(t)) {
+ out << indent() << "val." << (*m_iter)->get_name() << " = [self." << (*m_iter)->get_name() << " copy];";
+ } else {
+ out << indent() << "val." << (*m_iter)->get_name() << " = self." << (*m_iter)->get_name() << ";";
+ }
+ out << endl;
+ scope_down(out);
+ }
+
+ out << indent() << "return val;" << endl;
+
+ 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, bool is_exception) {
+ 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();
+
+ if (is_exception) {
+ indent(out) << "if (![super isEqual:anObject]) {" << endl;
+ indent_up();
+ indent(out) << "return NO;" << endl;
+ indent_down();
+ indent(out) << "}" << endl << endl;
+ }
+ else {
+ indent(out) << "if (![anObject isKindOfClass:[" << class_name << " class]]) {" << endl;
+ indent_up();
+ indent(out) << "return NO;" << endl;
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ if (!members.empty()) {
+ indent(out) << class_name << " *other = (" << class_name << " *)anObject;" << endl;
+
+ 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() << "- (instancetype) init" << endl;
+ scope_up(out);
+ out << indent() << "return [super initWithDomain: " << cocoa_prefix_ << capitalize(program_name_) << "ErrorDomain" << endl
+ << indent() << " code: " << cocoa_prefix_ << capitalize(program_name_) << "Error" << tstruct->get_name() << endl
+ << indent() << " userInfo: nil];" << endl;
+ scope_down(out);
+ out << endl;
+ } else {
+ // struct
+
+ // default initializer
+ // setup instance variables with default values
+ indent(out) << "- (instancetype) init" << endl;
+ scope_up(out);
+ indent(out) << "self = [super init];" << endl;
+ indent(out) << "if (self)";
+ scope_up(out);
+ if (members.size() > 0) {
+ 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);
+ }
+ }
+ }
+ scope_down(out);
+ 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;
+ }
+
+ indent(out) << "if (self)";
+ scope_up(out);
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ out << indent() << "_" << (*m_iter)->get_name() << " = ";
+ if (get_true_type((*m_iter)->get_type())->is_container()) {
+ out << "[" << (*m_iter)->get_name() << " mutableCopy];" << endl;
+ } else {
+ out << (*m_iter)->get_name() << ";" << endl;
+ }
+ out << indent() << "_" << (*m_iter)->get_name() << "IsSet = YES;" << endl;
+ }
+ scope_down(out);
+
+ 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, is_exception);
+ // copy for NSObject
+ generate_cocoa_struct_copy_method(out, tstruct, is_exception);
+
+ // 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 << "- (BOOL) read: (id <TProtocol>) inProtocol error: (NSError *__autoreleasing *)__thriftError" << 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) << "SInt32 fieldType;" << endl;
+ indent(out) << "SInt32 fieldID;" << endl;
+ out << endl;
+
+ indent(out) << "if (![inProtocol readStructBeginReturningName: NULL error: __thriftError]) return NO;" << endl;
+
+ // Loop over reading in fields
+ indent(out) << "while (true)" << endl;
+ scope_up(out);
+
+ // Read beginning field marker
+ indent(out)
+ << "if (![inProtocol readFieldBeginReturningName: &fieldName type: &fieldType fieldID: &fieldID error: __thriftError]) return NO;"
+ << endl;
+
+ // Check for field STOP marker and break
+ indent(out) << "if (fieldType == TTypeSTOP) { " << 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;
+
+ indent_down();
+ out << indent() << "} else { " << endl;
+ if (log_unexpected_) {
+ out << indent() << " NSLog(@\"%s: field ID %i has unexpected type %i. Skipping.\", "
+ "__PRETTY_FUNCTION__, (int)fieldID, (int)fieldType);" << endl;
+ }
+
+ out << indent() << " if (![TProtocolUtil skipType: fieldType onProtocol: inProtocol error: __thriftError]) return NO;" << endl;
+ out << 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__, (int)fieldID, (int)fieldType);" << endl;
+ }
+
+ out << indent() << " if (![TProtocolUtil skipType: fieldType onProtocol: inProtocol error: __thriftError]) return NO;" << endl;
+
+ out << indent() << " break;" << endl;
+
+ scope_down(out);
+
+ // Read field end marker
+ indent(out) << "if (![inProtocol readFieldEnd: __thriftError]) return NO;" << endl;
+
+ scope_down(out);
+
+ out << indent() << "if (![inProtocol readStructEnd: __thriftError]) return NO;" << endl;
+
+ // performs various checks (e.g. check that all required fields are set)
+ if (validate_required_) {
+ out << indent() << "if (![self validate: __thriftError]) return NO;" << endl;
+ }
+
+ indent(out) << "return YES;" << 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() << "- (BOOL) write: (id <TProtocol>) outProtocol error: (NSError *__autoreleasing *)__thriftError {" << 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() << "if (![outProtocol writeStructBeginWithName: @\"" << name << "\" error: __thriftError]) return NO;" << 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) << "if (![outProtocol writeFieldBeginWithName: @\"" << (*f_iter)->get_name()
+ << "\" type: " << type_to_enum((*f_iter)->get_type())
+ << " fieldID: " << (*f_iter)->get_key() << " error: __thriftError]) return NO;" << endl;
+
+ // Write field contents
+ generate_serialize_field(out, *f_iter, "_" + (*f_iter)->get_name());
+
+ // Write field closer
+ indent(out) << "if (![outProtocol writeFieldEnd: __thriftError]) return NO;" << endl;
+
+ if (null_allowed) {
+ scope_down(out);
+ }
+ scope_down(out);
+ }
+ // Write the struct map
+ out << indent() << "if (![outProtocol writeFieldStop: __thriftError]) return NO;" << endl
+ << indent() << "if (![outProtocol writeStructEnd: __thriftError]) return NO;" << endl;
+
+ indent(out) << "return YES;" << 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() << "- (BOOL) write: (id <TProtocol>) outProtocol error: (NSError *__autoreleasing *)__thriftError {" << 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() << "if (![outProtocol writeStructBeginWithName: @\"" << name << "\" error: __thriftError]) return NO;" << 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) << "if (![outProtocol writeFieldBeginWithName: @\"" << (*f_iter)->get_name()
+ << "\" type: " << type_to_enum((*f_iter)->get_type())
+ << " fieldID: " << (*f_iter)->get_key() << " error: __thriftError]) return NO;" << endl;
+
+ // Write field contents
+ generate_serialize_field(out, *f_iter, "_" + (*f_iter)->get_name());
+
+ // Write field closer
+ indent(out) << "if (![outProtocol writeFieldEnd: __thriftError]) return NO;" << endl;
+
+ if (null_allowed) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+
+ indent_down();
+ indent(out) << "}";
+ }
+ // Write the struct map
+ out << endl << indent() << "if (![outProtocol writeFieldStop: __thriftError]) return NO;"
+ << endl << indent() << "if (![outProtocol writeStructEnd: __thriftError]) return NO;"
+ << endl;
+
+ indent(out) << "return YES;" << 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() << "- (BOOL) validate: (NSError *__autoreleasing *)__thriftError {" << 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) ";
+ scope_up(out);
+ indent(out) << "if (__thriftError) ";
+ scope_up(out);
+ out << indent() << "*__thriftError = [NSError errorWithDomain: TProtocolErrorDomain" << endl
+ << indent() << " code: TProtocolErrorUnknown" << endl
+ << indent() << " userInfo: @{TProtocolErrorExtendedErrorKey: @(TProtocolExtendedErrorMissingRequiredField)," << endl
+ << indent() << " TProtocolErrorFieldNameKey: @\"" << (*f_iter)->get_name() << "\"}];" << endl;
+ scope_down(out);
+ scope_down(out);
+ }
+ }
+ indent(out) << "return YES;" << 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 setter
+ indent(out) << "- (void) set" << cap_name << ": (" << type_name(type, false, true) << ") " << field_name
+ << " {" << endl;
+ indent_up();
+ indent(out) << "_" << field_name << " = " << field_name << ";" << endl;
+ indent(out) << "_" << field_name << "IsSet = YES;" << 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 << " = 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) {
+
+ // Allow use of debugDescription so the app can add description via a cateogory/extension
+ if (debug_descriptions_) {
+ out << indent() << "- (NSString *) debugDescription {" << endl;
+ }
+ else {
+ 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) << "\", "
+ << format_cast_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();
+
+ string qname = function_args_helper_struct_type(tservice, *f_iter);
+
+ t_struct qname_ts = t_struct(ts->get_program(), qname);
+
+ const vector<t_field*>& members = ts->get_members();
+ vector<t_field*>::const_iterator m_iter;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ qname_ts.append(*m_iter);
+ }
+
+ generate_cocoa_struct_interface(f_impl_, &qname_ts, false);
+ generate_cocoa_struct_implementation(f_impl_, &qname_ts, false, false);
+ generate_function_helpers(tservice, *f_iter);
+ }
+}
+
+string t_cocoa_generator::function_result_helper_struct_type(t_service *tservice, t_function* tfunction) {
+ if (tfunction->is_oneway()) {
+ return tservice->get_name() + "_" + tfunction->get_name();
+ } else {
+ return tservice->get_name() + "_" + tfunction->get_name() + "_result";
+ }
+}
+
+string t_cocoa_generator::function_args_helper_struct_type(t_service *tservice, t_function* tfunction) {
+ return tservice->get_name() + "_" + tfunction->get_name() + "_args";
+}
+
+/**
+ * Generates a struct and helpers for a function.
+ *
+ * @param tfunction The function
+ */
+void t_cocoa_generator::generate_function_helpers(t_service *tservice, 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(tservice, 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, true) << ";"
+ << " // 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, false) << ";" << endl;
+ if (promise_kit_) {
+ out << "- " << promise_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() << "> " << endl;
+
+ 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> " << endl
+ << endl;
+
+ out << "- (id) initWithProtocolFactory: (id <TProtocolFactory>) protocolFactory "
+ << "transportFactory: (id <TAsyncTransportFactory>) transportFactory;" << 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> " << endl;
+
+ 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_service *tservice,
+ t_function* tfunction,
+ bool needs_protocol) {
+ string funname = tfunction->get_name();
+
+ t_function send_function(g_type_bool,
+ string("send_") + tfunction->get_name(),
+ tfunction->get_arglist());
+
+ string argsname = function_args_helper_struct_type(tservice, tfunction);
+
+ // Open function
+ indent(out) << "- (BOOL) send_" << tfunction->get_name() << argument_list(tfunction->get_arglist(), needs_protocol ? "outProtocol" : "", true) << endl;
+ scope_up(out);
+
+ // Serialize the request
+ out << indent() << "if (![outProtocol writeMessageBeginWithName: @\"" << funname << "\""
+ << (tfunction->is_oneway() ? " type: TMessageTypeONEWAY" : " type: TMessageTypeCALL")
+ << " sequenceID: 0 error: __thriftError]) return NO;" << endl;
+
+ out << indent() << "if (![outProtocol writeStructBeginWithName: @\"" << argsname
+ << "\" error: __thriftError]) return NO;" << 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() << "if (![outProtocol writeFieldBeginWithName: @\"" << fieldName
+ << "\""
+ " type: " << type_to_enum((*fld_iter)->get_type())
+ << " fieldID: " << (*fld_iter)->get_key() << " error: __thriftError]) return NO;" << endl;
+
+ generate_serialize_field(out, *fld_iter, fieldName);
+
+ out << indent() << "if (![outProtocol writeFieldEnd: __thriftError]) return NO;" << endl;
+
+ if (type_can_be_null((*fld_iter)->get_type())) {
+ indent_down();
+ out << indent() << "}" << endl;
+ }
+ }
+
+ out << indent() << "if (![outProtocol writeFieldStop: __thriftError]) return NO;" << endl;
+ out << indent() << "if (![outProtocol writeStructEnd: __thriftError]) return NO;" << endl;
+ out << indent() << "if (![outProtocol writeMessageEnd: __thriftError]) return NO;" << endl;
+ out << indent() << "return YES;" << endl;
+ scope_down(out);
+ out << endl;
+}
+
+void t_cocoa_generator::generate_cocoa_service_client_recv_function_implementation(
+ ofstream& out,
+ t_service* tservice,
+ t_function* tfunction,
+ bool needs_protocol) {
+
+
+ // Open function
+ indent(out) << "- (BOOL) recv_" << tfunction->get_name();
+ if (!tfunction->get_returntype()->is_void()) {
+ out << ": (" << type_name(tfunction->get_returntype(), false, true) << " *) result ";
+ if (needs_protocol) {
+ out << "protocol";
+ } else {
+ out << "error";
+ }
+ }
+ if (needs_protocol) {
+ out << ": (id<TProtocol>) inProtocol error";
+ }
+ out << ": (NSError *__autoreleasing *)__thriftError" << endl;
+ scope_up(out);
+
+ // TODO(mcslee): Message validation here, was the seqid etc ok?
+
+ // check for an exception
+ out << indent() << "NSError *incomingException = [self checkIncomingMessageException: inProtocol];" << endl
+ << indent() << "if (incomingException)";
+ scope_up(out);
+ out << indent() << "if (__thriftError)";
+ scope_up(out);
+ out << indent() << "*__thriftError = incomingException;" << endl;
+ scope_down(out);
+ out << indent() << "return NO;" << endl;
+ scope_down(out);
+
+ // FIXME - could optimize here to reduce creation of temporary objects.
+ string resultname = function_result_helper_struct_type(tservice, tfunction);
+ out << indent() << cocoa_prefix_ << resultname << " * resulter = [" << cocoa_prefix_ << resultname << " new];" << endl;
+ indent(out) << "if (![resulter read: inProtocol error: __thriftError]) return NO;" << endl;
+ indent(out) << "if (![inProtocol readMessageEnd: __thriftError]) return NO;" << endl;
+
+ // Careful, only return _result if not a void function
+ if (!tfunction->get_returntype()->is_void()) {
+ out << indent() << "if (resulter.successIsSet)";
+ scope_up(out);
+ out << indent() << "*result = resulter.success;" << endl;
+ out << indent() << "return YES;" << endl;
+ scope_down(out);
+ }
+
+ 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 (resulter." << (*x_iter)->get_name() << "IsSet)";
+ scope_up(out);
+ out << indent() << "if (__thriftError)";
+ scope_up(out);
+ out << indent() << "*__thriftError = [resulter " << (*x_iter)->get_name() << "];" << endl;
+ scope_down(out);
+ out << indent() << "return NO;" << endl;
+ scope_down(out);
+ }
+
+ // If you get here it's an exception, unless a void function
+ if (tfunction->get_returntype()->is_void()) {
+ indent(out) << "return YES;" << endl;
+ } else {
+ out << indent() << "if (__thriftError)";
+ scope_up(out);
+ out << indent() << "*__thriftError = [NSError errorWithDomain: TApplicationErrorDomain" << endl
+ << indent() << " code: TApplicationErrorMissingResult" << endl
+ << indent() << " userInfo: @{TApplicationErrorMethodKey: @\""
+ << tfunction->get_name() << "\"}];" << endl;
+ scope_down(out);
+ out << indent() << "return NO;" << 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;
+ out << indent() << "if (![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;
+ }
+ }
+ if (!fields.empty()) {
+ out << " error";
+ }
+ out << ": __thriftError]) " << invalid_return_statement(tfunction) << 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_async_function_invocation(
+ ofstream& out,
+ t_function* tfunction,
+ string failureBlockName) {
+
+ t_struct* arg_struct = tfunction->get_arglist();
+ const vector<t_field*>& fields = arg_struct->get_members();
+ vector<t_field*>::const_iterator fld_iter;
+ out << indent() << "if (![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;
+ }
+ }
+ if (!fields.empty()) {
+ out << " protocol";
+ }
+ out << ": protocol error: &thriftError]) ";
+ scope_up(out);
+ out << indent() << failureBlockName << "(thriftError);" << endl
+ << indent() << "return;" << endl;
+ scope_down(out);
+}
+
+/**
+ * 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) {
+
+ string name = cocoa_prefix_ + tservice->get_name() + "Client";
+
+ out << "@interface " << name << " () ";
+ scope_up(out);
+ out << endl;
+ out << indent() << "id<TProtocol> inProtocol;" << endl;
+ out << indent() << "id<TProtocol> outProtocol;" << endl;
+ out << endl;
+ scope_down(out);
+ out << endl;
+ out << "@end" << endl << endl;
+
+ out << "@implementation " << name << 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() << "if (self) ";
+ scope_up(out);
+ out << indent() << "inProtocol = anInProtocol;" << endl;
+ out << indent() << "outProtocol = anOutProtocol;" << endl;
+ scope_down(out);
+ 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, tservice, *f_iter, false);
+
+ if (!(*f_iter)->is_oneway()) {
+ generate_cocoa_service_client_recv_function_implementation(out, tservice, *f_iter, false);
+ }
+
+ // Open function
+ indent(out) << "- " << function_signature(*f_iter, true) << endl;
+ scope_up(out);
+ generate_cocoa_service_client_send_function_invocation(out, *f_iter);
+
+ out << indent() << "if (![[outProtocol transport] flush: __thriftError]) " << invalid_return_statement(*f_iter) << endl;
+ if (!(*f_iter)->is_oneway()) {
+ if ((*f_iter)->get_returntype()->is_void()) {
+ out << indent() << "if (![self recv_" << (*f_iter)->get_name() << ": __thriftError]) return NO;" << endl;
+ out << indent() << "return YES;" << endl;
+ } else {
+ out << indent() << type_name((*f_iter)->get_returntype(), false, true) << " __result;" << endl
+ << indent() << "if (![self recv_" << (*f_iter)->get_name() << ": &__result error: __thriftError]) "
+ << invalid_return_statement(*f_iter) << endl;
+ if (type_can_be_null((*f_iter)->get_returntype())) {
+ out << indent() << "return __result;" << endl;
+ } else {
+ out << indent() << "return @(__result);" << endl;
+ }
+ }
+ }
+ else {
+ out << indent() << "return YES;" << endl;
+ }
+ scope_down(out);
+ out << endl;
+ }
+
+ 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) {
+
+ string name = cocoa_prefix_ + tservice->get_name() + "ClientAsync";
+
+ out << "@interface " << name << " () ";
+ scope_up(out);
+ out << endl;
+ out << indent() << "id<TProtocolFactory> protocolFactory;" << endl;
+ out << indent() << "id<TAsyncTransportFactory> transportFactory;" << endl;
+ out << endl;
+ scope_down(out);
+ out << endl;
+ out << "@end" << endl << endl;
+
+
+ out << "@implementation " << name << endl
+ << endl << "- (id) initWithProtocolFactory: (id <TProtocolFactory>) aProtocolFactory "
+ "transportFactory: (id <TAsyncTransportFactory>) aTransportFactory;" << endl;
+
+ scope_up(out);
+ out << indent() << "self = [super init];" << endl;
+ out << indent() << "if (self) {" << endl;
+ out << indent() << " protocolFactory = aProtocolFactory;" << endl;
+ out << indent() << " transportFactory = aTransportFactory;" << endl;
+ out << indent() << "}" << 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, tservice, *f_iter, true);
+
+ if (!(*f_iter)->is_oneway()) {
+ generate_cocoa_service_client_recv_function_implementation(out, tservice, *f_iter, true);
+ }
+
+ // Open function
+ indent(out) << "- " << async_function_signature(*f_iter, false) << endl;
+ scope_up(out);
+
+ out << indent() << "NSError *thriftError;" << endl
+ << indent() << "id<TAsyncTransport> transport = [transportFactory newTransport];" << endl
+ << indent() << "id<TProtocol> protocol = [protocolFactory newProtocolOnTransport:transport];" << endl
+ << endl;
+
+ generate_cocoa_service_client_send_async_function_invocation(out, *f_iter, "failureBlock");
+
+ out << indent() << "[transport flushWithCompletion:^{" << endl;
+ indent_up();
+
+ if (!(*f_iter)->is_oneway()) {
+ out << indent() << "NSError *thriftError;" << endl;
+
+ if (!(*f_iter)->get_returntype()->is_void()) {
+ out << indent() << type_name((*f_iter)->get_returntype()) << " result;" << endl;
+ }
+ out << indent() << "if (![self recv_" << (*f_iter)->get_name();
+ if (!(*f_iter)->get_returntype()->is_void()) {
+ out << ": &result protocol";
+ }
+ out << ": protocol error: &thriftError]) ";
+ scope_up(out);
+ out << indent() << "failureBlock(thriftError);" << endl
+ << indent() << "return;" << endl;
+ scope_down(out);
+ }
+
+ out << indent() << "responseBlock(";
+ if (!(*f_iter)->is_oneway() && !(*f_iter)->get_returntype()->is_void()) {
+ out << "result";
+ }
+ out << ");" << endl;
+
+ indent_down();
+
+ out << indent() << "} failure:failureBlock];" << endl;
+
+ scope_down(out);
+
+ out << endl;
+
+ // Promise function
+ if (promise_kit_) {
+
+ indent(out) << "- " << promise_function_signature(*f_iter) << endl;
+ scope_up(out);
+
+ out << indent() << "return [AnyPromise promiseWithResolverBlock:^(PMKResolver resolver) {" << endl;
+ indent_up();
+
+ out << indent() << "NSError *thriftError;" << endl
+ << indent() << "id<TAsyncTransport> transport = [transportFactory newTransport];" << endl
+ << indent() << "id<TProtocol> protocol = [protocolFactory newProtocolOnTransport:transport];" << endl
+ << endl;
+
+ generate_cocoa_service_client_send_async_function_invocation(out, *f_iter, "resolver");
+
+ out << indent() << "[transport flushWithCompletion:^{" << endl;
+ indent_up();
+
+ if (!(*f_iter)->is_oneway()) {
+ out << indent() << "NSError *thriftError;" << endl;
+
+ if (!(*f_iter)->get_returntype()->is_void()) {
+ out << indent() << type_name((*f_iter)->get_returntype()) << " result;" << endl;
+ }
+ out << indent() << "if (![self recv_" << (*f_iter)->get_name();
+ if (!(*f_iter)->get_returntype()->is_void()) {
+ out << ": &result protocol";
+ }
+ out << ": protocol error: &thriftError]) ";
+ scope_up(out);
+ out << indent() << "resolver(thriftError);" << endl
+ << indent() << "return;" << endl;
+ scope_down(out);
+ }
+
+ out << indent() << "resolver(";
+ if ((*f_iter)->is_oneway() || (*f_iter)->get_returntype()->is_void()) {
+ out << "@YES";
+ } else if (type_can_be_null((*f_iter)->get_returntype())) {
+ out << "result";
+ } else {
+ out << "@(result)";
+ }
+ out << ");" << endl;
+
+ indent_down();
+
+ out << indent() << "} failure:^(NSError *error) {" << endl;
+ indent_up();
+ out << indent() << "resolver(error);" << endl;
+ indent_down();
+ out << indent() << "}];" << endl;
+
+ indent_down();
+ out << indent() << "}];" << 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) {
+
+ string name = cocoa_prefix_ + tservice->get_name() + "Processor";
+
+ out << "@interface " << name << " () ";
+
+ scope_up(out);
+ out << indent() << "id <" << cocoa_prefix_ << tservice->get_name() << "> service;" << endl;
+ out << indent() << "NSDictionary * methodMap;" << endl;
+ scope_down(out);
+
+ out << "@end" << endl << endl;
+
+ out << "@implementation " << name << endl;
+
+ // initializer
+ out << endl;
+ out << "- (id) initWith" << tservice->get_name() << ": (id <" << cocoa_prefix_ << tservice->get_name() << ">) aService" << endl;
+ scope_up(out);
+ out << indent() << "self = [super init];" << endl;
+ out << indent() << "if (self) ";
+ scope_up(out);
+ out << indent() << "service = aService;" << endl;
+ out << indent() << "methodMap = [NSMutableDictionary dictionary];" << 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:error:);" << 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() << "[methodMap setValue: invocation forKey: @\"" << funname << "\"];" << endl;
+ scope_down(out);
+ }
+ 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 service;" << 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() << " error: (NSError *__autoreleasing *)__thriftError" << endl;
+ out << indent() << "{" << endl;
+ out << indent() << " NSString * messageName;" << endl;
+ out << indent() << " SInt32 messageType;" << endl;
+ out << indent() << " SInt32 seqID;" << endl;
+ out << indent() << " if (![inProtocol readMessageBeginReturningName: &messageName" << endl;
+ out << indent() << " type: &messageType" << endl;
+ out << indent() << " sequenceID: &seqID" << endl;
+ out << indent() << " error: __thriftError]) return NO;" << endl;
+ out << indent() << " NSInvocation * invocation = [methodMap valueForKey: messageName];" << endl;
+ out << indent() << " if (invocation == nil) {" << endl;
+ out << indent() << " if (![TProtocolUtil skipType: TTypeSTRUCT onProtocol: inProtocol error: __thriftError]) return NO;" << endl;
+ out << indent() << " if (![inProtocol readMessageEnd: __thriftError]) return NO;" << endl;
+ out << indent() << " NSError * x = [NSError errorWithDomain: TApplicationErrorDomain" << endl;
+ out << indent() << " code: TApplicationErrorUnknownMethod" << endl;
+ out << indent() << " userInfo: @{TApplicationErrorMethodKey: messageName}];" << endl;
+ out << indent() << " if (![outProtocol writeMessageBeginWithName: messageName" << endl;
+ out << indent() << " type: TMessageTypeEXCEPTION" << endl;
+ out << indent() << " sequenceID: seqID" << endl;
+ out << indent() << " error: __thriftError]) return NO;" << endl;
+ out << indent() << " if (![x write: outProtocol error: __thriftError]) return NO;" << endl;
+ out << indent() << " if (![outProtocol writeMessageEnd: __thriftError]) return NO;" << endl;
+ out << indent() << " if (![[outProtocol transport] flush: __thriftError]) return NO;" << 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 setArgument: &__thriftError atIndex: 5];" << 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() << "- (BOOL) process_" << funname
+ << "_withSequenceID: (SInt32) seqID inProtocol: (id<TProtocol>) inProtocol outProtocol: "
+ "(id<TProtocol>) outProtocol error:(NSError *__autoreleasing *)__thriftError" << endl;
+ scope_up(out);
+ string argstype = cocoa_prefix_ + function_args_helper_struct_type(tservice, *f_iter);
+ out << indent() << argstype << " * args = [" << argstype << " new];" << endl;
+ out << indent() << "if (![args read: inProtocol error: __thriftError]) return NO;" << endl;
+ out << indent() << "if (![inProtocol readMessageEnd: __thriftError]) return NO;" << endl;
+
+ // prepare the result if not oneway
+ if (!(*f_iter)->is_oneway()) {
+ string resulttype = cocoa_prefix_ + function_result_helper_struct_type(tservice, *f_iter);
+ out << indent() << resulttype << " * result = [" << resulttype << " new];" << endl;
+ }
+
+ // make the call to the actual service object
+ out << indent();
+ if ((*f_iter)->get_returntype()->is_void()) {
+ out << "BOOL";
+ } else if (type_can_be_null((*f_iter)->get_returntype())) {
+ out << type_name((*f_iter)->get_returntype(), false, true);
+ } else {
+ out << "NSNumber *";
+ }
+ out << " serviceResult = ";
+ if ((*f_iter)->get_returntype()->get_true_type()->is_container()) {
+ out << "(" << type_name((*f_iter)->get_returntype(), false, true) << ")";
+ }
+ out << "[service " << 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 << "]";
+ }
+ }
+ if (!fields.empty()) {
+ out << " error";
+ }
+ out << ": __thriftError];" << endl;
+ out << indent() << "if (!serviceResult) return NO;" << endl;
+ if (!(*f_iter)->get_returntype()->is_void()) {
+ out << indent() << "[result setSuccess: " << unbox((*f_iter)->get_returntype(), "serviceResult") << "];" << endl;
+ }
+
+ // write out the result if not oneway
+ if (!(*f_iter)->is_oneway()) {
+ out << indent() << "if (![outProtocol writeMessageBeginWithName: @\"" << funname << "\"" << endl;
+ out << indent() << " type: TMessageTypeREPLY" << endl;
+ out << indent() << " sequenceID: seqID" << endl;
+ out << indent() << " error: __thriftError]) return NO;" << endl;
+ out << indent() << "if (![result write: outProtocol error: __thriftError]) return NO;" << endl;
+ out << indent() << "if (![outProtocol writeMessageEnd: __thriftError]) return NO;" << endl;
+ out << indent() << "if (![[outProtocol transport] flush: __thriftError]) return NO;" << endl;
+ }
+ out << indent() << "return YES;" << endl;
+
+ scope_down(out);
+ }
+
+ 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 << ";" << endl;
+ indent(out) << "if (![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:&" << fieldName << " error: __thriftError]";
+ } else {
+ out << "readString:&" << fieldName << " error: __thriftError]";
+ }
+ break;
+ case t_base_type::TYPE_BOOL:
+ out << "readBool:&" << fieldName << " error: __thriftError]";
+ break;
+ case t_base_type::TYPE_I8:
+ out << "readByte:(UInt8 *)&" << fieldName << " error: __thriftError]";
+ break;
+ case t_base_type::TYPE_I16:
+ out << "readI16:&" << fieldName << " error: __thriftError]";
+ break;
+ case t_base_type::TYPE_I32:
+ out << "readI32:&" << fieldName << " error: __thriftError]";
+ break;
+ case t_base_type::TYPE_I64:
+ out << "readI64:&" << fieldName << " error: __thriftError]";
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ out << "readDouble:&" << fieldName << " error: __thriftError]";
+ 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:&" << fieldName << " error: __thriftError]";
+ }
+ out << ") return NO;" << 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) << "if (![" << fieldName << " read: inProtocol error: __thriftError]) return NO;" << 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) << "SInt32 " << size << ";" << endl;
+
+ // Declare variables, read header
+ if (ttype->is_map()) {
+ indent(out) << "if (![inProtocol readMapBeginReturningKeyType: NULL valueType: NULL size: &" << size << " error: __thriftError]) return NO;" << endl;
+ indent(out) << "NSMutableDictionary * " << fieldName
+ << " = [[NSMutableDictionary alloc] initWithCapacity: " << size << "];" << endl;
+ } else if (ttype->is_set()) {
+ indent(out) << "if (![inProtocol readSetBeginReturningElementType: NULL size: &" << size << " error: __thriftError]) return NO;"
+ << endl;
+ indent(out) << "NSMutableSet * " << fieldName
+ << " = [[NSMutableSet alloc] initWithCapacity: " << size << "];" << endl;
+ } else if (ttype->is_list()) {
+ indent(out) << "if (![inProtocol readListBeginReturningElementType: NULL size: &" << size << " error: __thriftError]) return NO;"
+ << 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
<TRUNCATED>