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Posted to commits@hawq.apache.org by ml...@apache.org on 2016/09/08 02:08:15 UTC
[42/70] [partial] incubator-hawq git commit: HAWQ-959. revert thrift
build commands.
http://git-wip-us.apache.org/repos/asf/incubator-hawq/blob/72ea8afd/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cpp_generator.cc
----------------------------------------------------------------------
diff --git a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cpp_generator.cc b/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cpp_generator.cc
deleted file mode 100644
index 4e03d94..0000000
--- a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_cpp_generator.cc
+++ /dev/null
@@ -1,4367 +0,0 @@
-/*
- * 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.
- *
- * Contains some contributions under the Thrift Software License.
- * Please see doc/old-thrift-license.txt in the Thrift distribution for
- * details.
- */
-
-#include <cassert>
-
-#include <fstream>
-#include <iostream>
-#include <sstream>
-#include <string>
-#include <vector>
-
-#include <sys/stat.h>
-
-#include "platform.h"
-#include "t_oop_generator.h"
-
-using std::map;
-using std::ofstream;
-using std::ostream;
-using std::string;
-using std::vector;
-
-static const string endl = "\n"; // avoid ostream << std::endl flushes
-
-/**
- * C++ code generator. This is legitimacy incarnate.
- *
- */
-class t_cpp_generator : public t_oop_generator {
-public:
- t_cpp_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("pure_enums");
- gen_pure_enums_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("include_prefix");
- use_include_prefix_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("cob_style");
- gen_cob_style_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("no_client_completion");
- gen_no_client_completion_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("no_default_operators");
- gen_no_default_operators_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("templates");
- gen_templates_ = (iter != parsed_options.end());
-
- gen_templates_only_ = (iter != parsed_options.end() && iter->second == "only");
-
- iter = parsed_options.find("moveable_types");
- gen_moveable_ = (iter != parsed_options.end());
-
- out_dir_base_ = "gen-cpp";
- }
-
- /**
- * 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_forward_declaration(t_struct* tstruct);
- void generate_struct(t_struct* tstruct) { generate_cpp_struct(tstruct, false); }
- void generate_xception(t_struct* txception) { generate_cpp_struct(txception, true); }
- void generate_cpp_struct(t_struct* tstruct, bool is_exception);
-
- void generate_service(t_service* tservice);
-
- void print_const_value(std::ofstream& out, std::string name, t_type* type, t_const_value* value);
- std::string render_const_value(std::ofstream& out,
- std::string name,
- t_type* type,
- t_const_value* value);
-
- void generate_struct_declaration(std::ofstream& out,
- t_struct* tstruct,
- bool is_exception = false,
- bool pointers = false,
- bool read = true,
- bool write = true,
- bool swap = false,
- bool stream = false);
- void generate_struct_definition(std::ofstream& out,
- std::ofstream& force_cpp_out,
- t_struct* tstruct,
- bool setters = true);
- void generate_copy_constructor(std::ofstream& out, t_struct* tstruct, bool is_exception);
- void generate_move_constructor(std::ofstream& out, t_struct* tstruct, bool is_exception);
- void generate_constructor_helper(std::ofstream& out,
- t_struct* tstruct,
- bool is_excpetion,
- bool is_move);
- void generate_assignment_operator(std::ofstream& out, t_struct* tstruct);
- void generate_move_assignment_operator(std::ofstream& out, t_struct* tstruct);
- void generate_assignment_helper(std::ofstream& out, t_struct* tstruct, bool is_move);
- void generate_struct_reader(std::ofstream& out, t_struct* tstruct, bool pointers = false);
- void generate_struct_writer(std::ofstream& out, t_struct* tstruct, bool pointers = false);
- void generate_struct_result_writer(std::ofstream& out, t_struct* tstruct, bool pointers = false);
- void generate_struct_swap(std::ofstream& out, t_struct* tstruct);
- void generate_struct_print_method(std::ofstream& out, t_struct* tstruct);
- void generate_exception_what_method(std::ofstream& out, t_struct* tstruct);
-
- /**
- * Service-level generation functions
- */
-
- void generate_service_interface(t_service* tservice, string style);
- void generate_service_interface_factory(t_service* tservice, string style);
- void generate_service_null(t_service* tservice, string style);
- void generate_service_multiface(t_service* tservice);
- void generate_service_helpers(t_service* tservice);
- void generate_service_client(t_service* tservice, string style);
- void generate_service_processor(t_service* tservice, string style);
- void generate_service_skeleton(t_service* tservice);
- void generate_process_function(t_service* tservice,
- t_function* tfunction,
- string style,
- bool specialized = false);
- void generate_function_helpers(t_service* tservice, t_function* tfunction);
- void generate_service_async_skeleton(t_service* tservice);
-
- /**
- * Serialization constructs
- */
-
- void generate_deserialize_field(std::ofstream& out,
- t_field* tfield,
- std::string prefix = "",
- std::string suffix = "");
-
- void generate_deserialize_struct(std::ofstream& out,
- t_struct* tstruct,
- std::string prefix = "",
- bool pointer = false);
-
- 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,
- bool push_back,
- std::string index);
-
- void generate_serialize_field(std::ofstream& out,
- t_field* tfield,
- std::string prefix = "",
- std::string suffix = "");
-
- void generate_serialize_struct(std::ofstream& out,
- t_struct* tstruct,
- std::string prefix = "",
- bool pointer = false);
-
- 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);
-
- 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 iter);
-
- void generate_function_call(ostream& out,
- t_function* tfunction,
- string target,
- string iface,
- string arg_prefix);
- /*
- * Helper rendering functions
- */
-
- std::string namespace_prefix(std::string ns);
- std::string namespace_open(std::string ns);
- std::string namespace_close(std::string ns);
- std::string type_name(t_type* ttype, bool in_typedef = false, bool arg = false);
- std::string base_type_name(t_base_type::t_base tbase);
- std::string declare_field(t_field* tfield,
- bool init = false,
- bool pointer = false,
- bool constant = false,
- bool reference = false);
- std::string function_signature(t_function* tfunction,
- std::string style,
- std::string prefix = "",
- bool name_params = true);
- std::string cob_function_signature(t_function* tfunction,
- std::string prefix = "",
- bool name_params = true);
- std::string argument_list(t_struct* tstruct, bool name_params = true, bool start_comma = false);
- std::string type_to_enum(t_type* ttype);
-
- void generate_enum_constant_list(std::ofstream& f,
- const vector<t_enum_value*>& constants,
- const char* prefix,
- const char* suffix,
- bool include_values);
-
- void generate_struct_ostream_operator(std::ofstream& f, t_struct* tstruct);
- void generate_struct_print_method_decl(std::ofstream& f, t_struct* tstruct);
- void generate_exception_what_method_decl(std::ofstream& f,
- t_struct* tstruct,
- bool external = false);
-
- bool is_reference(t_field* tfield) { return tfield->get_reference(); }
-
- bool is_complex_type(t_type* ttype) {
- ttype = get_true_type(ttype);
-
- return ttype->is_container() || ttype->is_struct() || ttype->is_xception()
- || (ttype->is_base_type()
- && (((t_base_type*)ttype)->get_base() == t_base_type::TYPE_STRING));
- }
-
- void set_use_include_prefix(bool use_include_prefix) { use_include_prefix_ = use_include_prefix; }
-
-private:
- /**
- * Returns the include prefix to use for a file generated by program, or the
- * empty string if no include prefix should be used.
- */
- std::string get_include_prefix(const t_program& program) const;
-
- /**
- * True if we should generate pure enums for Thrift enums, instead of wrapper classes.
- */
- bool gen_pure_enums_;
-
- /**
- * True if we should generate templatized reader/writer methods.
- */
- bool gen_templates_;
-
- /**
- * True iff we should generate process function pointers for only templatized
- * reader/writer methods.
- */
- bool gen_templates_only_;
-
- /**
- * True if we should generate move constructors & assignment operators.
- */
- bool gen_moveable_;
-
- /**
- * True iff we should use a path prefix in our #include statements for other
- * thrift-generated header files.
- */
- bool use_include_prefix_;
-
- /**
- * True if we should generate "Continuation OBject"-style classes as well.
- */
- bool gen_cob_style_;
-
- /**
- * True if we should omit calls to completion__() in CobClient class.
- */
- bool gen_no_client_completion_;
-
- /**
- * True if we should omit generating the default opeartors ==, != and <.
- */
- bool gen_no_default_operators_;
-
- /**
- * Strings for namespace, computed once up front then used directly
- */
-
- std::string ns_open_;
- std::string ns_close_;
-
- /**
- * File streams, stored here to avoid passing them as parameters to every
- * function.
- */
-
- std::ofstream f_types_;
- std::ofstream f_types_impl_;
- std::ofstream f_types_tcc_;
- std::ofstream f_header_;
- std::ofstream f_service_;
- std::ofstream f_service_tcc_;
-
- // The ProcessorGenerator is used to generate parts of the code,
- // so it needs access to many of our protected members and methods.
- //
- // TODO: The code really should be cleaned up so that helper methods for
- // writing to the output files are separate from the generator classes
- // themselves.
- friend class ProcessorGenerator;
-};
-
-/**
- * Prepares for file generation by opening up the necessary file output
- * streams.
- */
-void t_cpp_generator::init_generator() {
- // Make output directory
- MKDIR(get_out_dir().c_str());
-
- // Make output file
- string f_types_name = get_out_dir() + program_name_ + "_types.h";
- f_types_.open(f_types_name.c_str());
-
- string f_types_impl_name = get_out_dir() + program_name_ + "_types.cpp";
- f_types_impl_.open(f_types_impl_name.c_str());
-
- if (gen_templates_) {
- // If we don't open the stream, it appears to just discard data,
- // which is fine.
- string f_types_tcc_name = get_out_dir() + program_name_ + "_types.tcc";
- f_types_tcc_.open(f_types_tcc_name.c_str());
- }
-
- // Print header
- f_types_ << autogen_comment();
- f_types_impl_ << autogen_comment();
- f_types_tcc_ << autogen_comment();
-
- // Start ifndef
- f_types_ << "#ifndef " << program_name_ << "_TYPES_H" << endl << "#define " << program_name_
- << "_TYPES_H" << endl << endl;
- f_types_tcc_ << "#ifndef " << program_name_ << "_TYPES_TCC" << endl << "#define " << program_name_
- << "_TYPES_TCC" << endl << endl;
-
- // Include base types
- f_types_ << "#include <iosfwd>" << endl
- << endl
- << "#include <thrift/Thrift.h>" << endl
- << "#include <thrift/TApplicationException.h>" << endl
- << "#include <thrift/protocol/TProtocol.h>" << endl
- << "#include <thrift/transport/TTransport.h>" << endl
- << endl;
- // Include C++xx compatibility header
- f_types_ << "#include <thrift/cxxfunctional.h>" << endl;
-
- // Include other Thrift includes
- const vector<t_program*>& includes = program_->get_includes();
- for (size_t i = 0; i < includes.size(); ++i) {
- f_types_ << "#include \"" << get_include_prefix(*(includes[i])) << includes[i]->get_name()
- << "_types.h\"" << endl;
-
- // XXX(simpkins): If gen_templates_ is enabled, we currently assume all
- // included files were also generated with templates enabled.
- f_types_tcc_ << "#include \"" << get_include_prefix(*(includes[i])) << includes[i]->get_name()
- << "_types.tcc\"" << endl;
- }
- f_types_ << endl;
-
- // Include custom headers
- const vector<string>& cpp_includes = program_->get_cpp_includes();
- for (size_t i = 0; i < cpp_includes.size(); ++i) {
- if (cpp_includes[i][0] == '<') {
- f_types_ << "#include " << cpp_includes[i] << endl;
- } else {
- f_types_ << "#include \"" << cpp_includes[i] << "\"" << endl;
- }
- }
- f_types_ << endl;
-
- // Include the types file
- f_types_impl_ << "#include \"" << get_include_prefix(*get_program()) << program_name_
- << "_types.h\"" << endl << endl;
- f_types_tcc_ << "#include \"" << get_include_prefix(*get_program()) << program_name_
- << "_types.h\"" << endl << endl;
-
- // The swap() code needs <algorithm> for std::swap()
- f_types_impl_ << "#include <algorithm>" << endl;
- // for operator<<
- f_types_impl_ << "#include <ostream>" << endl << endl;
- f_types_impl_ << "#include <thrift/TToString.h>" << endl << endl;
-
- // Open namespace
- ns_open_ = namespace_open(program_->get_namespace("cpp"));
- ns_close_ = namespace_close(program_->get_namespace("cpp"));
-
- f_types_ << ns_open_ << endl << endl;
-
- f_types_impl_ << ns_open_ << endl << endl;
-
- f_types_tcc_ << ns_open_ << endl << endl;
-}
-
-/**
- * Closes the output files.
- */
-void t_cpp_generator::close_generator() {
- // Close namespace
- f_types_ << ns_close_ << endl << endl;
- f_types_impl_ << ns_close_ << endl;
- f_types_tcc_ << ns_close_ << endl << endl;
-
- // Include the types.tcc file from the types header file,
- // so clients don't have to explicitly include the tcc file.
- // TODO(simpkins): Make this a separate option.
- if (gen_templates_) {
- f_types_ << "#include \"" << get_include_prefix(*get_program()) << program_name_
- << "_types.tcc\"" << endl << endl;
- }
-
- // Close ifndef
- f_types_ << "#endif" << endl;
- f_types_tcc_ << "#endif" << endl;
-
- // Close output file
- f_types_.close();
- f_types_impl_.close();
- f_types_tcc_.close();
-}
-
-/**
- * Generates a typedef. This is just a simple 1-liner in C++
- *
- * @param ttypedef The type definition
- */
-void t_cpp_generator::generate_typedef(t_typedef* ttypedef) {
- f_types_ << indent() << "typedef " << type_name(ttypedef->get_type(), true) << " "
- << ttypedef->get_symbolic() << ";" << endl << endl;
-}
-
-void t_cpp_generator::generate_enum_constant_list(std::ofstream& f,
- const vector<t_enum_value*>& constants,
- const char* prefix,
- const char* suffix,
- bool include_values) {
- f << " {" << endl;
- indent_up();
-
- vector<t_enum_value*>::const_iterator c_iter;
- bool first = true;
- for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
- if (first) {
- first = false;
- } else {
- f << "," << endl;
- }
- indent(f) << prefix << (*c_iter)->get_name() << suffix;
- if (include_values) {
- f << " = " << (*c_iter)->get_value();
- }
- }
-
- f << endl;
- indent_down();
- indent(f) << "};" << endl;
-}
-
-/**
- * Generates code for an enumerated type. In C++, this is essentially the same
- * as the thrift definition itself, using the enum keyword in C++.
- *
- * @param tenum The enumeration
- */
-void t_cpp_generator::generate_enum(t_enum* tenum) {
- vector<t_enum_value*> constants = tenum->get_constants();
-
- std::string enum_name = tenum->get_name();
- if (!gen_pure_enums_) {
- enum_name = "type";
- f_types_ << indent() << "struct " << tenum->get_name() << " {" << endl;
- indent_up();
- }
- f_types_ << indent() << "enum " << enum_name;
-
- generate_enum_constant_list(f_types_, constants, "", "", true);
-
- if (!gen_pure_enums_) {
- indent_down();
- f_types_ << "};" << endl;
- }
-
- f_types_ << endl;
-
- /**
- Generate a character array of enum names for debugging purposes.
- */
- std::string prefix = "";
- if (!gen_pure_enums_) {
- prefix = tenum->get_name() + "::";
- }
-
- f_types_impl_ << indent() << "int _k" << tenum->get_name() << "Values[] =";
- generate_enum_constant_list(f_types_impl_, constants, prefix.c_str(), "", false);
-
- f_types_impl_ << indent() << "const char* _k" << tenum->get_name() << "Names[] =";
- generate_enum_constant_list(f_types_impl_, constants, "\"", "\"", false);
-
- f_types_ << indent() << "extern const std::map<int, const char*> _" << tenum->get_name()
- << "_VALUES_TO_NAMES;" << endl << endl;
-
- f_types_impl_ << indent() << "const std::map<int, const char*> _" << tenum->get_name()
- << "_VALUES_TO_NAMES(::apache::thrift::TEnumIterator(" << constants.size() << ", _k"
- << tenum->get_name() << "Values"
- << ", _k" << tenum->get_name() << "Names), "
- << "::apache::thrift::TEnumIterator(-1, NULL, NULL));" << endl << endl;
-}
-
-/**
- * Generates a class that holds all the constants.
- */
-void t_cpp_generator::generate_consts(std::vector<t_const*> consts) {
- string f_consts_name = get_out_dir() + program_name_ + "_constants.h";
- ofstream f_consts;
- f_consts.open(f_consts_name.c_str());
-
- string f_consts_impl_name = get_out_dir() + program_name_ + "_constants.cpp";
- ofstream f_consts_impl;
- f_consts_impl.open(f_consts_impl_name.c_str());
-
- // Print header
- f_consts << autogen_comment();
- f_consts_impl << autogen_comment();
-
- // Start ifndef
- f_consts << "#ifndef " << program_name_ << "_CONSTANTS_H" << endl << "#define " << program_name_
- << "_CONSTANTS_H" << endl << endl << "#include \"" << get_include_prefix(*get_program())
- << program_name_ << "_types.h\"" << endl << endl << ns_open_ << endl << endl;
-
- f_consts_impl << "#include \"" << get_include_prefix(*get_program()) << program_name_
- << "_constants.h\"" << endl << endl << ns_open_ << endl << endl;
-
- f_consts << "class " << program_name_ << "Constants {" << endl << " public:" << endl << " "
- << program_name_ << "Constants();" << endl << endl;
- indent_up();
- 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();
- f_consts << indent() << type_name(type) << " " << name << ";" << endl;
- }
- indent_down();
- f_consts << "};" << endl;
-
- f_consts_impl << "const " << program_name_ << "Constants g_" << program_name_ << "_constants;"
- << endl << endl << program_name_ << "Constants::" << program_name_
- << "Constants() {" << endl;
- indent_up();
- for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) {
- print_const_value(f_consts_impl,
- (*c_iter)->get_name(),
- (*c_iter)->get_type(),
- (*c_iter)->get_value());
- }
- indent_down();
- indent(f_consts_impl) << "}" << endl;
-
- f_consts << endl << "extern const " << program_name_ << "Constants g_" << program_name_
- << "_constants;" << endl << endl << ns_close_ << endl << endl << "#endif" << endl;
- f_consts.close();
-
- f_consts_impl << endl << ns_close_ << endl << endl;
-}
-
-/**
- * Prints the value of a constant with the given type. Note that type checking
- * is NOT performed in this function as it is always run beforehand using the
- * validate_types method in main.cc
- */
-void t_cpp_generator::print_const_value(ofstream& out,
- string name,
- t_type* type,
- t_const_value* value) {
- type = get_true_type(type);
- if (type->is_base_type()) {
- string v2 = render_const_value(out, name, type, value);
- indent(out) << name << " = " << v2 << ";" << endl << endl;
- } else if (type->is_enum()) {
- indent(out) << name << " = (" << type_name(type) << ")" << value->get_integer() << ";" << endl
- << endl;
- } else if (type->is_struct() || type->is_xception()) {
- const vector<t_field*>& fields = ((t_struct*)type)->get_members();
- vector<t_field*>::const_iterator f_iter;
- const map<t_const_value*, t_const_value*>& val = value->get_map();
- map<t_const_value*, t_const_value*>::const_iterator v_iter;
- bool is_nonrequired_field = false;
- for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
- t_type* field_type = NULL;
- is_nonrequired_field = false;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if ((*f_iter)->get_name() == v_iter->first->get_string()) {
- field_type = (*f_iter)->get_type();
- is_nonrequired_field = (*f_iter)->get_req() != t_field::T_REQUIRED;
- }
- }
- if (field_type == NULL) {
- throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string();
- }
- string val = render_const_value(out, name, field_type, v_iter->second);
- indent(out) << name << "." << v_iter->first->get_string() << " = " << val << ";" << endl;
- if (is_nonrequired_field) {
- indent(out) << name << ".__isset." << v_iter->first->get_string() << " = true;" << endl;
- }
- }
- out << endl;
- } else if (type->is_map()) {
- t_type* ktype = ((t_map*)type)->get_key_type();
- t_type* vtype = ((t_map*)type)->get_val_type();
- const map<t_const_value*, t_const_value*>& val = value->get_map();
- map<t_const_value*, t_const_value*>::const_iterator v_iter;
- for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
- string key = render_const_value(out, name, ktype, v_iter->first);
- string val = render_const_value(out, name, vtype, v_iter->second);
- indent(out) << name << ".insert(std::make_pair(" << key << ", " << val << "));" << endl;
- }
- out << endl;
- } else if (type->is_list()) {
- t_type* etype = ((t_list*)type)->get_elem_type();
- const vector<t_const_value*>& val = value->get_list();
- vector<t_const_value*>::const_iterator v_iter;
- for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
- string val = render_const_value(out, name, etype, *v_iter);
- indent(out) << name << ".push_back(" << val << ");" << endl;
- }
- out << endl;
- } else if (type->is_set()) {
- t_type* etype = ((t_set*)type)->get_elem_type();
- const vector<t_const_value*>& val = value->get_list();
- vector<t_const_value*>::const_iterator v_iter;
- for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
- string val = render_const_value(out, name, etype, *v_iter);
- indent(out) << name << ".insert(" << val << ");" << endl;
- }
- out << endl;
- } else {
- throw "INVALID TYPE IN print_const_value: " + type->get_name();
- }
-}
-
-/**
- *
- */
-string t_cpp_generator::render_const_value(ofstream& out,
- string name,
- t_type* type,
- t_const_value* value) {
- (void)name;
- std::ostringstream render;
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_STRING:
- render << '"' << get_escaped_string(value) << '"';
- break;
- case t_base_type::TYPE_BOOL:
- render << ((value->get_integer() > 0) ? "true" : "false");
- break;
- case t_base_type::TYPE_BYTE:
- case t_base_type::TYPE_I16:
- case t_base_type::TYPE_I32:
- render << value->get_integer();
- break;
- case t_base_type::TYPE_I64:
- render << value->get_integer() << "LL";
- break;
- case t_base_type::TYPE_DOUBLE:
- if (value->get_type() == t_const_value::CV_INTEGER) {
- render << value->get_integer();
- } else {
- render << value->get_double();
- }
- break;
- default:
- throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase);
- }
- } else if (type->is_enum()) {
- render << "(" << type_name(type) << ")" << value->get_integer();
- } else {
- string t = tmp("tmp");
- indent(out) << type_name(type) << " " << t << ";" << endl;
- print_const_value(out, t, type, value);
- render << t;
- }
-
- return render.str();
-}
-
-void t_cpp_generator::generate_forward_declaration(t_struct* tstruct) {
- // Forward declare struct def
- f_types_ << indent() << "class " << tstruct->get_name() << ";" << endl << endl;
-}
-
-/**
- * Generates a struct definition for a thrift data type. This is a class
- * with data members and a read/write() function, plus a mirroring isset
- * inner class.
- *
- * @param tstruct The struct definition
- */
-void t_cpp_generator::generate_cpp_struct(t_struct* tstruct, bool is_exception) {
- generate_struct_declaration(f_types_, tstruct, is_exception, false, true, true, true, true);
- generate_struct_definition(f_types_impl_, f_types_impl_, tstruct);
-
- std::ofstream& out = (gen_templates_ ? f_types_tcc_ : f_types_impl_);
- generate_struct_reader(out, tstruct);
- generate_struct_writer(out, tstruct);
- generate_struct_swap(f_types_impl_, tstruct);
- generate_copy_constructor(f_types_impl_, tstruct, is_exception);
- if (gen_moveable_) {
- generate_move_constructor(f_types_impl_, tstruct, is_exception);
- }
- generate_assignment_operator(f_types_impl_, tstruct);
- if (gen_moveable_) {
- generate_move_assignment_operator(f_types_impl_, tstruct);
- }
- generate_struct_print_method(f_types_impl_, tstruct);
- if (is_exception) {
- generate_exception_what_method(f_types_impl_, tstruct);
- }
-}
-
-void t_cpp_generator::generate_copy_constructor(ofstream& out,
- t_struct* tstruct,
- bool is_exception) {
- generate_constructor_helper(out, tstruct, is_exception, /*is_move=*/false);
-}
-
-void t_cpp_generator::generate_move_constructor(ofstream& out,
- t_struct* tstruct,
- bool is_exception) {
- generate_constructor_helper(out, tstruct, is_exception, /*is_move=*/true);
-}
-
-namespace {
-// Helper to convert a variable to rvalue, if move is enabled
-std::string maybeMove(std::string const& other, bool move) {
- if (move) {
- return "std::move(" + other + ")";
- }
- return other;
-}
-}
-
-void t_cpp_generator::generate_constructor_helper(ofstream& out,
- t_struct* tstruct,
- bool is_exception,
- bool is_move) {
-
- std::string tmp_name = tmp("other");
-
- indent(out) << tstruct->get_name() << "::" << tstruct->get_name();
-
- if (is_move) {
- out << "( " << tstruct->get_name() << "&& ";
- } else {
- out << "(const " << tstruct->get_name() << "& ";
- }
- out << tmp_name << ") ";
- if (is_exception)
- out << ": TException() ";
- out << "{" << endl;
- indent_up();
-
- const vector<t_field*>& members = tstruct->get_members();
-
- // eliminate compiler unused warning
- if (members.empty())
- indent(out) << "(void) " << tmp_name << ";" << endl;
-
- vector<t_field*>::const_iterator f_iter;
- bool has_nonrequired_fields = false;
- for (f_iter = members.begin(); f_iter != members.end(); ++f_iter) {
- if ((*f_iter)->get_req() != t_field::T_REQUIRED)
- has_nonrequired_fields = true;
- indent(out) << (*f_iter)->get_name() << " = "
- << maybeMove(tmp_name + "." + (*f_iter)->get_name(), is_move) << ";" << endl;
- }
-
- if (has_nonrequired_fields) {
- indent(out) << "__isset = " << maybeMove(tmp_name + ".__isset", is_move) << ";" << endl;
- }
-
- indent_down();
- indent(out) << "}" << endl;
-}
-
-void t_cpp_generator::generate_assignment_operator(ofstream& out, t_struct* tstruct) {
- generate_assignment_helper(out, tstruct, /*is_move=*/false);
-}
-
-void t_cpp_generator::generate_move_assignment_operator(ofstream& out, t_struct* tstruct) {
- generate_assignment_helper(out, tstruct, /*is_move=*/true);
-}
-
-void t_cpp_generator::generate_assignment_helper(ofstream& out, t_struct* tstruct, bool is_move) {
- std::string tmp_name = tmp("other");
-
- indent(out) << tstruct->get_name() << "& " << tstruct->get_name() << "::operator=(";
-
- if (is_move) {
- out << tstruct->get_name() << "&& ";
- } else {
- out << "const " << tstruct->get_name() << "& ";
- }
- out << tmp_name << ") {" << endl;
-
- indent_up();
-
- const vector<t_field*>& members = tstruct->get_members();
-
- // eliminate compiler unused warning
- if (members.empty())
- indent(out) << "(void) " << tmp_name << ";" << endl;
-
- vector<t_field*>::const_iterator f_iter;
- bool has_nonrequired_fields = false;
- for (f_iter = members.begin(); f_iter != members.end(); ++f_iter) {
- if ((*f_iter)->get_req() != t_field::T_REQUIRED)
- has_nonrequired_fields = true;
- indent(out) << (*f_iter)->get_name() << " = "
- << maybeMove(tmp_name + "." + (*f_iter)->get_name(), is_move) << ";" << endl;
- }
- if (has_nonrequired_fields) {
- indent(out) << "__isset = " << maybeMove(tmp_name + ".__isset", is_move) << ";" << endl;
- }
-
- indent(out) << "return *this;" << endl;
- indent_down();
- indent(out) << "}" << endl;
-}
-
-/**
- * Writes the struct declaration into the header file
- *
- * @param out Output stream
- * @param tstruct The struct
- */
-void t_cpp_generator::generate_struct_declaration(ofstream& out,
- t_struct* tstruct,
- bool is_exception,
- bool pointers,
- bool read,
- bool write,
- bool swap,
- bool stream) {
- string extends = "";
- if (is_exception) {
- extends = " : public ::apache::thrift::TException";
- }
-
- // Get members
- vector<t_field*>::const_iterator m_iter;
- const vector<t_field*>& members = tstruct->get_members();
-
- // Write the isset structure declaration outside the class. This makes
- // the generated code amenable to processing by SWIG.
- // We only declare the struct if it gets used in the class.
-
- // Isset struct has boolean fields, but only for non-required fields.
- bool has_nonrequired_fields = false;
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- if ((*m_iter)->get_req() != t_field::T_REQUIRED)
- has_nonrequired_fields = true;
- }
-
- if (has_nonrequired_fields && (!pointers || read)) {
-
- out << indent() << "typedef struct _" << tstruct->get_name() << "__isset {" << endl;
- indent_up();
-
- indent(out) << "_" << tstruct->get_name() << "__isset() ";
- bool first = true;
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- if ((*m_iter)->get_req() == t_field::T_REQUIRED) {
- continue;
- }
- string isSet = ((*m_iter)->get_value() != NULL) ? "true" : "false";
- if (first) {
- first = false;
- out << ": " << (*m_iter)->get_name() << "(" << isSet << ")";
- } else {
- out << ", " << (*m_iter)->get_name() << "(" << isSet << ")";
- }
- }
- out << " {}" << endl;
-
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- if ((*m_iter)->get_req() != t_field::T_REQUIRED) {
- indent(out) << "bool " << (*m_iter)->get_name() << " :1;" << endl;
- }
- }
-
- indent_down();
- indent(out) << "} _" << tstruct->get_name() << "__isset;" << endl;
- }
-
- out << endl;
-
- // Open struct def
- out << indent() << "class " << tstruct->get_name() << extends << " {" << endl << indent()
- << " public:" << endl << endl;
- indent_up();
-
- if (!pointers) {
- // Copy constructor
- indent(out) << tstruct->get_name() << "(const " << tstruct->get_name() << "&);" << endl;
-
- // Move constructor
- if (gen_moveable_) {
- indent(out) << tstruct->get_name() << "(" << tstruct->get_name() << "&&);" << endl;
- }
-
- // Assignment Operator
- indent(out) << tstruct->get_name() << "& operator=(const " << tstruct->get_name() << "&);"
- << endl;
-
- // Move assignment operator
- if (gen_moveable_) {
- indent(out) << tstruct->get_name() << "& operator=(" << tstruct->get_name() << "&&);" << endl;
- }
-
- // Default constructor
- indent(out) << tstruct->get_name() << "()";
-
- bool init_ctor = false;
-
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- t_type* t = get_true_type((*m_iter)->get_type());
- if (t->is_base_type() || t->is_enum() || is_reference(*m_iter)) {
- string dval;
- if (t->is_enum()) {
- dval += "(" + type_name(t) + ")";
- }
- dval += (t->is_string() || is_reference(*m_iter)) ? "" : "0";
- t_const_value* cv = (*m_iter)->get_value();
- if (cv != NULL) {
- dval = render_const_value(out, (*m_iter)->get_name(), t, cv);
- }
- if (!init_ctor) {
- init_ctor = true;
- out << " : ";
- out << (*m_iter)->get_name() << "(" << dval << ")";
- } else {
- out << ", " << (*m_iter)->get_name() << "(" << dval << ")";
- }
- }
- }
- out << " {" << endl;
- indent_up();
- // TODO(dreiss): When everything else in Thrift is perfect,
- // do more of these in the initializer list.
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- t_type* t = get_true_type((*m_iter)->get_type());
-
- if (!t->is_base_type()) {
- t_const_value* cv = (*m_iter)->get_value();
- if (cv != NULL) {
- print_const_value(out, (*m_iter)->get_name(), t, cv);
- }
- }
- }
- scope_down(out);
- }
-
- if (tstruct->annotations_.find("final") == tstruct->annotations_.end()) {
- out << endl << indent() << "virtual ~" << tstruct->get_name() << "() throw();" << endl;
- }
-
- // Declare all fields
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- indent(out) << declare_field(*m_iter,
- false,
- (pointers && !(*m_iter)->get_type()->is_xception()),
- !read) << endl;
- }
-
- // Add the __isset data member if we need it, using the definition from above
- if (has_nonrequired_fields && (!pointers || read)) {
- out << endl << indent() << "_" << tstruct->get_name() << "__isset __isset;" << endl;
- }
-
- // Create a setter function for each field
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- if (pointers) {
- continue;
- }
- if (is_reference((*m_iter))) {
- out << endl << indent() << "void __set_" << (*m_iter)->get_name() << "(boost::shared_ptr<"
- << type_name((*m_iter)->get_type(), false, false) << ">";
- out << " val);" << endl;
- } else {
- out << endl << indent() << "void __set_" << (*m_iter)->get_name() << "("
- << type_name((*m_iter)->get_type(), false, true);
- out << " val);" << endl;
- }
- }
- out << endl;
-
- if (!pointers) {
- // Should we generate default operators?
- if (!gen_no_default_operators_) {
- // Generate an equality testing operator. Make it inline since the compiler
- // will do a better job than we would when deciding whether to inline it.
- out << indent() << "bool operator == (const " << tstruct->get_name() << " & "
- << (members.size() > 0 ? "rhs" : "/* rhs */") << ") const" << endl;
- scope_up(out);
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- // Most existing Thrift code does not use isset or optional/required,
- // so we treat "default" fields as required.
- if ((*m_iter)->get_req() != t_field::T_OPTIONAL) {
- out << indent() << "if (!(" << (*m_iter)->get_name() << " == rhs."
- << (*m_iter)->get_name() << "))" << endl << indent() << " return false;" << endl;
- } else {
- out << indent() << "if (__isset." << (*m_iter)->get_name() << " != rhs.__isset."
- << (*m_iter)->get_name() << ")" << endl << indent() << " return false;" << endl
- << indent() << "else if (__isset." << (*m_iter)->get_name() << " && !("
- << (*m_iter)->get_name() << " == rhs." << (*m_iter)->get_name() << "))" << endl
- << indent() << " return false;" << endl;
- }
- }
- indent(out) << "return true;" << endl;
- scope_down(out);
- out << indent() << "bool operator != (const " << tstruct->get_name() << " &rhs) const {"
- << endl << indent() << " return !(*this == rhs);" << endl << indent() << "}" << endl
- << endl;
-
- // Generate the declaration of a less-than operator. This must be
- // implemented by the application developer if they wish to use it. (They
- // will get a link error if they try to use it without an implementation.)
- out << indent() << "bool operator < (const " << tstruct->get_name() << " & ) const;" << endl
- << endl;
- }
- }
-
- if (read) {
- if (gen_templates_) {
- out << indent() << "template <class Protocol_>" << endl << indent()
- << "uint32_t read(Protocol_* iprot);" << endl;
- } else {
- out << indent() << "uint32_t read("
- << "::apache::thrift::protocol::TProtocol* iprot);" << endl;
- }
- }
- if (write) {
- if (gen_templates_) {
- out << indent() << "template <class Protocol_>" << endl << indent()
- << "uint32_t write(Protocol_* oprot) const;" << endl;
- } else {
- out << indent() << "uint32_t write("
- << "::apache::thrift::protocol::TProtocol* oprot) const;" << endl;
- }
- }
- out << endl;
-
- if (stream) {
- out << indent() << "virtual ";
- generate_struct_print_method_decl(out, NULL);
- out << ";" << endl;
- }
-
- // std::exception::what()
- if (is_exception) {
- out << indent() << "mutable std::string thriftTExceptionMessageHolder_;" << endl;
- out << indent();
- generate_exception_what_method_decl(out, tstruct, false);
- out << ";" << endl;
- }
-
- indent_down();
- indent(out) << "};" << endl << endl;
-
- if (swap) {
- // Generate a namespace-scope swap() function
- out << indent() << "void swap(" << tstruct->get_name() << " &a, " << tstruct->get_name()
- << " &b);" << endl << endl;
- }
-
- if (stream) {
- generate_struct_ostream_operator(out, tstruct);
- }
-}
-
-void t_cpp_generator::generate_struct_definition(ofstream& out,
- ofstream& force_cpp_out,
- t_struct* tstruct,
- bool setters) {
- // Get members
- vector<t_field*>::const_iterator m_iter;
- const vector<t_field*>& members = tstruct->get_members();
-
- // Destructor
- if (tstruct->annotations_.find("final") == tstruct->annotations_.end()) {
- force_cpp_out << endl << indent() << tstruct->get_name() << "::~" << tstruct->get_name()
- << "() throw() {" << endl;
- indent_up();
-
- indent_down();
- force_cpp_out << indent() << "}" << endl << endl;
- }
-
- // Create a setter function for each field
- if (setters) {
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- if (is_reference((*m_iter))) {
- std::string type = type_name((*m_iter)->get_type());
- out << endl << indent() << "void " << tstruct->get_name() << "::__set_"
- << (*m_iter)->get_name() << "(boost::shared_ptr<"
- << type_name((*m_iter)->get_type(), false, false) << ">";
- out << " val) {" << endl;
- } else {
- out << endl << indent() << "void " << tstruct->get_name() << "::__set_"
- << (*m_iter)->get_name() << "(" << type_name((*m_iter)->get_type(), false, true);
- out << " val) {" << endl;
- }
- indent_up();
- out << indent() << "this->" << (*m_iter)->get_name() << " = val;" << endl;
- indent_down();
-
- // assume all fields are required except optional fields.
- // for optional fields change __isset.name to true
- bool is_optional = (*m_iter)->get_req() == t_field::T_OPTIONAL;
- if (is_optional) {
- out << indent() << indent() << "__isset." << (*m_iter)->get_name() << " = true;" << endl;
- }
- out << indent() << "}" << endl;
- }
- }
- out << endl;
-}
-
-/**
- * Makes a helper function to gen a struct reader.
- *
- * @param out Stream to write to
- * @param tstruct The struct
- */
-void t_cpp_generator::generate_struct_reader(ofstream& out, t_struct* tstruct, bool pointers) {
- if (gen_templates_) {
- out << indent() << "template <class Protocol_>" << endl << indent() << "uint32_t "
- << tstruct->get_name() << "::read(Protocol_* iprot) {" << endl;
- } else {
- indent(out) << "uint32_t " << tstruct->get_name()
- << "::read(::apache::thrift::protocol::TProtocol* iprot) {" << endl;
- }
- indent_up();
-
- const vector<t_field*>& fields = tstruct->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- // Declare stack tmp variables
- out << endl
- << indent() << "apache::thrift::protocol::TInputRecursionTracker tracker(*iprot);" << endl
- << indent() << "uint32_t xfer = 0;" << endl
- << indent() << "std::string fname;" << endl
- << indent() << "::apache::thrift::protocol::TType ftype;" << endl
- << indent() << "int16_t fid;" << endl
- << endl
- << indent() << "xfer += iprot->readStructBegin(fname);" << endl
- << endl
- << indent() << "using ::apache::thrift::protocol::TProtocolException;" << endl
- << endl;
-
- // Required variables aren't in __isset, so we need tmp vars to check them.
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if ((*f_iter)->get_req() == t_field::T_REQUIRED)
- indent(out) << "bool isset_" << (*f_iter)->get_name() << " = false;" << endl;
- }
- out << endl;
-
- // Loop over reading in fields
- indent(out) << "while (true)" << endl;
- scope_up(out);
-
- // Read beginning field marker
- indent(out) << "xfer += iprot->readFieldBegin(fname, ftype, fid);" << endl;
-
- // Check for field STOP marker
- out << indent() << "if (ftype == ::apache::thrift::protocol::T_STOP) {" << endl << indent()
- << " break;" << endl << indent() << "}" << endl;
-
- if (fields.empty()) {
- out << indent() << "xfer += iprot->skip(ftype);" << endl;
- } else {
- // Switch statement on the field we are reading
- indent(out) << "switch (fid)" << 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 (ftype == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl;
- indent_up();
-
- const char* isset_prefix = ((*f_iter)->get_req() != t_field::T_REQUIRED) ? "this->__isset."
- : "isset_";
-
-#if 0
- // This code throws an exception if the same field is encountered twice.
- // We've decided to leave it out for performance reasons.
- // TODO(dreiss): Generate this code and "if" it out to make it easier
- // for people recompiling thrift to include it.
- out <<
- indent() << "if (" << isset_prefix << (*f_iter)->get_name() << ")" << endl <<
- indent() << " throw TProtocolException(TProtocolException::INVALID_DATA);" << endl;
-#endif
-
- if (pointers && !(*f_iter)->get_type()->is_xception()) {
- generate_deserialize_field(out, *f_iter, "(*(this->", "))");
- } else {
- generate_deserialize_field(out, *f_iter, "this->");
- }
- out << indent() << isset_prefix << (*f_iter)->get_name() << " = true;" << endl;
- indent_down();
- out << indent() << "} else {" << endl << indent() << " xfer += iprot->skip(ftype);" << endl
- <<
- // TODO(dreiss): Make this an option when thrift structs
- // have a common base class.
- // indent() << " throw TProtocolException(TProtocolException::INVALID_DATA);" << endl <<
- indent() << "}" << endl << indent() << "break;" << endl;
- indent_down();
- }
-
- // In the default case we skip the field
- out << indent() << "default:" << endl << indent() << " xfer += iprot->skip(ftype);" << endl
- << indent() << " break;" << endl;
-
- scope_down(out);
- } //!fields.empty()
- // Read field end marker
- indent(out) << "xfer += iprot->readFieldEnd();" << endl;
-
- scope_down(out);
-
- out << endl << indent() << "xfer += iprot->readStructEnd();" << endl;
-
- // Throw if any required fields are missing.
- // We do this after reading the struct end so that
- // there might possibly be a chance of continuing.
- out << endl;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if ((*f_iter)->get_req() == t_field::T_REQUIRED)
- out << indent() << "if (!isset_" << (*f_iter)->get_name() << ')' << endl << indent()
- << " throw TProtocolException(TProtocolException::INVALID_DATA);" << endl;
- }
-
- indent(out) << "return xfer;" << endl;
-
- indent_down();
- indent(out) << "}" << endl << endl;
-}
-
-/**
- * Generates the write function.
- *
- * @param out Stream to write to
- * @param tstruct The struct
- */
-void t_cpp_generator::generate_struct_writer(ofstream& out, t_struct* tstruct, bool pointers) {
- string name = tstruct->get_name();
- const vector<t_field*>& fields = tstruct->get_sorted_members();
- vector<t_field*>::const_iterator f_iter;
-
- if (gen_templates_) {
- out << indent() << "template <class Protocol_>" << endl << indent() << "uint32_t "
- << tstruct->get_name() << "::write(Protocol_* oprot) const {" << endl;
- } else {
- indent(out) << "uint32_t " << tstruct->get_name()
- << "::write(::apache::thrift::protocol::TProtocol* oprot) const {" << endl;
- }
- indent_up();
-
- out << indent() << "uint32_t xfer = 0;" << endl;
-
- indent(out) << "apache::thrift::protocol::TOutputRecursionTracker tracker(*oprot);" << endl;
- indent(out) << "xfer += oprot->writeStructBegin(\"" << name << "\");" << endl;
-
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- bool check_if_set = (*f_iter)->get_req() == t_field::T_OPTIONAL
- || (*f_iter)->get_type()->is_xception();
- if (check_if_set) {
- out << endl << indent() << "if (this->__isset." << (*f_iter)->get_name() << ") {" << endl;
- indent_up();
- } else {
- out << endl;
- }
-
- // Write field header
- out << indent() << "xfer += oprot->writeFieldBegin("
- << "\"" << (*f_iter)->get_name() << "\", " << type_to_enum((*f_iter)->get_type()) << ", "
- << (*f_iter)->get_key() << ");" << endl;
- // Write field contents
- if (pointers && !(*f_iter)->get_type()->is_xception()) {
- generate_serialize_field(out, *f_iter, "(*(this->", "))");
- } else {
- generate_serialize_field(out, *f_iter, "this->");
- }
- // Write field closer
- indent(out) << "xfer += oprot->writeFieldEnd();" << endl;
- if (check_if_set) {
- indent_down();
- indent(out) << '}';
- }
- }
-
- out << endl;
-
- // Write the struct map
- out << indent() << "xfer += oprot->writeFieldStop();" << endl << indent()
- << "xfer += oprot->writeStructEnd();" << endl << indent()
- << "return xfer;" << endl;
-
- indent_down();
- indent(out) << "}" << endl << endl;
-}
-
-/**
- * Struct writer for result of a function, which can have only one of its
- * fields set and does a conditional if else look up into the __isset field
- * of the struct.
- *
- * @param out Output stream
- * @param tstruct The result struct
- */
-void t_cpp_generator::generate_struct_result_writer(ofstream& out,
- t_struct* tstruct,
- bool pointers) {
- string name = tstruct->get_name();
- const vector<t_field*>& fields = tstruct->get_sorted_members();
- vector<t_field*>::const_iterator f_iter;
-
- if (gen_templates_) {
- out << indent() << "template <class Protocol_>" << endl << indent() << "uint32_t "
- << tstruct->get_name() << "::write(Protocol_* oprot) const {" << endl;
- } else {
- indent(out) << "uint32_t " << tstruct->get_name()
- << "::write(::apache::thrift::protocol::TProtocol* oprot) const {" << endl;
- }
- indent_up();
-
- out << endl << indent() << "uint32_t xfer = 0;" << endl << endl;
-
- indent(out) << "xfer += oprot->writeStructBegin(\"" << 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 << "(this->__isset." << (*f_iter)->get_name() << ") {" << endl;
-
- indent_up();
-
- // Write field header
- out << indent() << "xfer += oprot->writeFieldBegin("
- << "\"" << (*f_iter)->get_name() << "\", " << type_to_enum((*f_iter)->get_type()) << ", "
- << (*f_iter)->get_key() << ");" << endl;
- // Write field contents
- if (pointers) {
- generate_serialize_field(out, *f_iter, "(*(this->", "))");
- } else {
- generate_serialize_field(out, *f_iter, "this->");
- }
- // Write field closer
- indent(out) << "xfer += oprot->writeFieldEnd();" << endl;
-
- indent_down();
- indent(out) << "}";
- }
-
- // Write the struct map
- out << endl << indent() << "xfer += oprot->writeFieldStop();" << endl << indent()
- << "xfer += oprot->writeStructEnd();" << endl << indent() << "return xfer;" << endl;
-
- indent_down();
- indent(out) << "}" << endl << endl;
-}
-
-/**
- * Generates the swap function.
- *
- * @param out Stream to write to
- * @param tstruct The struct
- */
-void t_cpp_generator::generate_struct_swap(ofstream& out, t_struct* tstruct) {
- out << indent() << "void swap(" << tstruct->get_name() << " &a, " << tstruct->get_name()
- << " &b) {" << endl;
- indent_up();
-
- // Let argument-dependent name lookup find the correct swap() function to
- // use based on the argument types. If none is found in the arguments'
- // namespaces, fall back to ::std::swap().
- out << indent() << "using ::std::swap;" << endl;
-
- bool has_nonrequired_fields = false;
- const vector<t_field*>& fields = tstruct->get_members();
- for (vector<t_field*>::const_iterator f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- t_field* tfield = *f_iter;
-
- if (tfield->get_req() != t_field::T_REQUIRED) {
- has_nonrequired_fields = true;
- }
-
- out << indent() << "swap(a." << tfield->get_name() << ", b." << tfield->get_name() << ");"
- << endl;
- }
-
- if (has_nonrequired_fields) {
- out << indent() << "swap(a.__isset, b.__isset);" << endl;
- }
-
- // handle empty structs
- if (fields.size() == 0) {
- out << indent() << "(void) a;" << endl;
- out << indent() << "(void) b;" << endl;
- }
-
- scope_down(out);
- out << endl;
-}
-
-void t_cpp_generator::generate_struct_ostream_operator(std::ofstream& out, t_struct* tstruct) {
- out << "inline std::ostream& operator<<(std::ostream& out, const "
- << tstruct->get_name()
- << "& obj)" << endl;
- scope_up(out);
- out << indent() << "obj.printTo(out);" << endl
- << indent() << "return out;" << endl;
- scope_down(out);
- out << endl;
-}
-
-void t_cpp_generator::generate_struct_print_method_decl(std::ofstream& out, t_struct* tstruct) {
- out << "void ";
- if (tstruct) {
- out << tstruct->get_name() << "::";
- }
- out << "printTo(std::ostream& out) const";
-}
-
-void t_cpp_generator::generate_exception_what_method_decl(std::ofstream& out,
- t_struct* tstruct,
- bool external) {
- out << "const char* ";
- if (external) {
- out << tstruct->get_name() << "::";
- }
- out << "what() const throw()";
-}
-
-namespace struct_ostream_operator_generator {
-void generate_required_field_value(std::ofstream& out, const t_field* field) {
- out << " << to_string(" << field->get_name() << ")";
-}
-
-void generate_optional_field_value(std::ofstream& out, const t_field* field) {
- out << "; (__isset." << field->get_name() << " ? (out";
- generate_required_field_value(out, field);
- out << ") : (out << \"<null>\"))";
-}
-
-void generate_field_value(std::ofstream& out, const t_field* field) {
- if (field->get_req() == t_field::T_OPTIONAL)
- generate_optional_field_value(out, field);
- else
- generate_required_field_value(out, field);
-}
-
-void generate_field_name(std::ofstream& out, const t_field* field) {
- out << "\"" << field->get_name() << "=\"";
-}
-
-void generate_field(std::ofstream& out, const t_field* field) {
- generate_field_name(out, field);
- generate_field_value(out, field);
-}
-
-void generate_fields(std::ofstream& out,
- const vector<t_field*>& fields,
- const std::string& indent) {
- const vector<t_field*>::const_iterator beg = fields.begin();
- const vector<t_field*>::const_iterator end = fields.end();
-
- for (vector<t_field*>::const_iterator it = beg; it != end; ++it) {
- out << indent << "out << ";
-
- if (it != beg) {
- out << "\", \" << ";
- }
-
- generate_field(out, *it);
- out << ";" << endl;
- }
-}
-}
-
-/**
- * Generates operator<<
- */
-void t_cpp_generator::generate_struct_print_method(std::ofstream& out, t_struct* tstruct) {
- out << indent();
- generate_struct_print_method_decl(out, tstruct);
- out << " {" << endl;
-
- indent_up();
-
- out << indent() << "using ::apache::thrift::to_string;" << endl;
- out << indent() << "out << \"" << tstruct->get_name() << "(\";" << endl;
- struct_ostream_operator_generator::generate_fields(out, tstruct->get_members(), indent());
- out << indent() << "out << \")\";" << endl;
-
- indent_down();
- out << "}" << endl << endl;
-}
-
-/**
- * Generates what() method for exceptions
- */
-void t_cpp_generator::generate_exception_what_method(std::ofstream& out, t_struct* tstruct) {
- out << indent();
- generate_exception_what_method_decl(out, tstruct, true);
- out << " {" << endl;
-
- indent_up();
- out << indent() << "try {" << endl;
-
- indent_up();
- out << indent() << "std::stringstream ss;" << endl;
- out << indent() << "ss << \"TException - service has thrown: \" << *this;" << endl;
- out << indent() << "this->thriftTExceptionMessageHolder_ = ss.str();" << endl;
- out << indent() << "return this->thriftTExceptionMessageHolder_.c_str();" << endl;
- indent_down();
-
- out << indent() << "} catch (const std::exception&) {" << endl;
-
- indent_up();
- out << indent() << "return \"TException - service has thrown: " << tstruct->get_name() << "\";"
- << endl;
- indent_down();
-
- out << indent() << "}" << endl;
-
- indent_down();
- out << "}" << endl << endl;
-}
-
-/**
- * Generates a thrift service. In C++, this comprises an entirely separate
- * header and source file. The header file defines the methods and includes
- * the data types defined in the main header file, and the implementation
- * file contains implementations of the basic printer and default interfaces.
- *
- * @param tservice The service definition
- */
-void t_cpp_generator::generate_service(t_service* tservice) {
- string svcname = tservice->get_name();
-
- // Make output files
- string f_header_name = get_out_dir() + svcname + ".h";
- f_header_.open(f_header_name.c_str());
-
- // Print header file includes
- f_header_ << autogen_comment();
- f_header_ << "#ifndef " << svcname << "_H" << endl << "#define " << svcname << "_H" << endl
- << endl;
- if (gen_cob_style_) {
- f_header_ << "#include <thrift/transport/TBufferTransports.h>" << endl << // TMemoryBuffer
- "#include <thrift/cxxfunctional.h>" << endl
- << "namespace apache { namespace thrift { namespace async {" << endl
- << "class TAsyncChannel;" << endl << "}}}" << endl;
- }
- f_header_ << "#include <thrift/TDispatchProcessor.h>" << endl;
- if (gen_cob_style_) {
- f_header_ << "#include <thrift/async/TAsyncDispatchProcessor.h>" << endl;
- }
- f_header_ << "#include <thrift/async/TConcurrentClientSyncInfo.h>" << endl;
- f_header_ << "#include \"" << get_include_prefix(*get_program()) << program_name_ << "_types.h\""
- << endl;
-
- t_service* extends_service = tservice->get_extends();
- if (extends_service != NULL) {
- f_header_ << "#include \"" << get_include_prefix(*(extends_service->get_program()))
- << extends_service->get_name() << ".h\"" << endl;
- }
-
- f_header_ << endl << ns_open_ << endl << endl;
-
- f_header_ <<
- "#ifdef _WIN32\n"
- " #pragma warning( push )\n"
- " #pragma warning (disable : 4250 ) //inheriting methods via dominance \n"
- "#endif\n\n";
-
- // Service implementation file includes
- string f_service_name = get_out_dir() + svcname + ".cpp";
- f_service_.open(f_service_name.c_str());
- f_service_ << autogen_comment();
- f_service_ << "#include \"" << get_include_prefix(*get_program()) << svcname << ".h\"" << endl;
- if (gen_cob_style_) {
- f_service_ << "#include \"thrift/async/TAsyncChannel.h\"" << endl;
- }
- if (gen_templates_) {
- f_service_ << "#include \"" << get_include_prefix(*get_program()) << svcname << ".tcc\""
- << endl;
-
- string f_service_tcc_name = get_out_dir() + svcname + ".tcc";
- f_service_tcc_.open(f_service_tcc_name.c_str());
- f_service_tcc_ << autogen_comment();
- f_service_tcc_ << "#include \"" << get_include_prefix(*get_program()) << svcname << ".h\""
- << endl;
-
- f_service_tcc_ << "#ifndef " << svcname << "_TCC" << endl << "#define " << svcname << "_TCC"
- << endl << endl;
-
- if (gen_cob_style_) {
- f_service_tcc_ << "#include \"thrift/async/TAsyncChannel.h\"" << endl;
- }
- }
-
- f_service_ << endl << ns_open_ << endl << endl;
- f_service_tcc_ << endl << ns_open_ << endl << endl;
-
- // Generate all the components
- generate_service_interface(tservice, "");
- generate_service_interface_factory(tservice, "");
- generate_service_null(tservice, "");
- generate_service_helpers(tservice);
- generate_service_client(tservice, "");
- generate_service_processor(tservice, "");
- generate_service_multiface(tservice);
- generate_service_skeleton(tservice);
- generate_service_client(tservice, "Concurrent");
-
- // Generate all the cob components
- if (gen_cob_style_) {
- generate_service_interface(tservice, "CobCl");
- generate_service_interface(tservice, "CobSv");
- generate_service_interface_factory(tservice, "CobSv");
- generate_service_null(tservice, "CobSv");
- generate_service_client(tservice, "Cob");
- generate_service_processor(tservice, "Cob");
- generate_service_async_skeleton(tservice);
- }
-
- f_header_ <<
- "#ifdef _WIN32\n"
- " #pragma warning( pop )\n"
- "#endif\n\n";
-
- // Close the namespace
- f_service_ << ns_close_ << endl << endl;
- f_service_tcc_ << ns_close_ << endl << endl;
- f_header_ << ns_close_ << endl << endl;
-
- // TODO(simpkins): Make this a separate option
- if (gen_templates_) {
- f_header_ << "#include \"" << get_include_prefix(*get_program()) << svcname << ".tcc\"" << endl
- << "#include \"" << get_include_prefix(*get_program()) << program_name_
- << "_types.tcc\"" << endl << endl;
- }
-
- f_header_ << "#endif" << endl;
- f_service_tcc_ << "#endif" << endl;
-
- // Close the files
- f_service_tcc_.close();
- f_service_.close();
- f_header_.close();
-}
-
-/**
- * Generates helper functions for a service. Basically, this generates types
- * for all the arguments and results to functions.
- *
- * @param tservice The service to generate a header definition for
- */
-void t_cpp_generator::generate_service_helpers(t_service* tservice) {
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::iterator f_iter;
- std::ofstream& out = (gen_templates_ ? f_service_tcc_ : f_service_);
-
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- t_struct* ts = (*f_iter)->get_arglist();
- string name_orig = ts->get_name();
-
- // TODO(dreiss): Why is this stuff not in generate_function_helpers?
- ts->set_name(tservice->get_name() + "_" + (*f_iter)->get_name() + "_args");
- generate_struct_declaration(f_header_, ts, false);
- generate_struct_definition(out, f_service_, ts, false);
- generate_struct_reader(out, ts);
- generate_struct_writer(out, ts);
- ts->set_name(tservice->get_name() + "_" + (*f_iter)->get_name() + "_pargs");
- generate_struct_declaration(f_header_, ts, false, true, false, true);
- generate_struct_definition(out, f_service_, ts, false);
- generate_struct_writer(out, ts, true);
- ts->set_name(name_orig);
-
- generate_function_helpers(tservice, *f_iter);
- }
-}
-
-/**
- * Generates a service interface definition.
- *
- * @param tservice The service to generate a header definition for
- */
-void t_cpp_generator::generate_service_interface(t_service* tservice, string style) {
-
- string service_if_name = service_name_ + style + "If";
- if (style == "CobCl") {
- // Forward declare the client.
- string client_name = service_name_ + "CobClient";
- if (gen_templates_) {
- client_name += "T";
- service_if_name += "T";
- indent(f_header_) << "template <class Protocol_>" << endl;
- }
- indent(f_header_) << "class " << client_name << ";" << endl << endl;
- }
-
- string extends = "";
- if (tservice->get_extends() != NULL) {
- extends = " : virtual public " + type_name(tservice->get_extends()) + style + "If";
- if (style == "CobCl" && gen_templates_) {
- // TODO(simpkins): If gen_templates_ is enabled, we currently assume all
- // parent services were also generated with templates enabled.
- extends += "T<Protocol_>";
- }
- }
-
- if (style == "CobCl" && gen_templates_) {
- f_header_ << "template <class Protocol_>" << endl;
- }
- f_header_ << "class " << service_if_name << extends << " {" << endl << " public:" << endl;
- indent_up();
- f_header_ << indent() << "virtual ~" << service_if_name << "() {}" << 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) {
- if ((*f_iter)->has_doc())
- f_header_ << endl;
- generate_java_doc(f_header_, *f_iter);
- f_header_ << indent() << "virtual " << function_signature(*f_iter, style) << " = 0;" << endl;
- }
- indent_down();
- f_header_ << "};" << endl << endl;
-
- if (style == "CobCl" && gen_templates_) {
- // generate a backwards-compatible typedef for clients that do not
- // know about the new template-style code
- f_header_ << "typedef " << service_if_name << "< ::apache::thrift::protocol::TProtocol> "
- << service_name_ << style << "If;" << endl << endl;
- }
-}
-
-/**
- * Generates a service interface factory.
- *
- * @param tservice The service to generate an interface factory for.
- */
-void t_cpp_generator::generate_service_interface_factory(t_service* tservice, string style) {
- string service_if_name = service_name_ + style + "If";
-
- // Figure out the name of the upper-most parent class.
- // Getting everything to work out properly with inheritance is annoying.
- // Here's what we're doing for now:
- //
- // - All handlers implement getHandler(), but subclasses use covariant return
- // types to return their specific service interface class type. We have to
- // use raw pointers because of this; shared_ptr<> can't be used for
- // covariant return types.
- //
- // - Since we're not using shared_ptr<>, we also provide a releaseHandler()
- // function that must be called to release a pointer to a handler obtained
- // via getHandler().
- //
- // releaseHandler() always accepts a pointer to the upper-most parent class
- // type. This is necessary since the parent versions of releaseHandler()
- // may accept any of the parent types, not just the most specific subclass
- // type. Implementations can use dynamic_cast to cast the pointer to the
- // subclass type if desired.
- t_service* base_service = tservice;
- while (base_service->get_extends() != NULL) {
- base_service = base_service->get_extends();
- }
- string base_if_name = type_name(base_service) + style + "If";
-
- // Generate the abstract factory class
- string factory_name = service_if_name + "Factory";
- string extends;
- if (tservice->get_extends() != NULL) {
- extends = " : virtual public " + type_name(tservice->get_extends()) + style + "IfFactory";
- }
-
- f_header_ << "class " << factory_name << extends << " {" << endl << " public:" << endl;
- indent_up();
- f_header_ << indent() << "typedef " << service_if_name << " Handler;" << endl << endl << indent()
- << "virtual ~" << factory_name << "() {}" << endl << endl << indent() << "virtual "
- << service_if_name << "* getHandler("
- << "const ::apache::thrift::TConnectionInfo& connInfo) = 0;" << endl << indent()
- << "virtual void releaseHandler(" << base_if_name << "* /* handler */) = 0;" << endl;
-
- indent_down();
- f_header_ << "};" << endl << endl;
-
- // Generate the singleton factory class
- string singleton_factory_name = service_if_name + "SingletonFactory";
- f_header_ << "class " << singleton_factory_name << " : virtual public " << factory_name << " {"
- << endl << " public:" << endl;
- indent_up();
- f_header_ << indent() << singleton_factory_name << "(const boost::shared_ptr<" << service_if_name
- << ">& iface) : iface_(iface) {}" << endl << indent() << "virtual ~"
- << singleton_factory_name << "() {}" << endl << endl << indent() << "virtual "
- << service_if_name << "* getHandler("
- << "const ::apache::thrift::TConnectionInfo&) {" << endl << indent()
- << " return iface_.get();" << endl << indent() << "}" << endl << indent()
- << "virtual void releaseHandler(" << base_if_name << "* /* handler */) {}" << endl;
-
- f_header_ << endl << " protected:" << endl << indent() << "boost::shared_ptr<" << service_if_name
- << "> iface_;" << endl;
-
- indent_down();
- f_header_ << "};" << endl << endl;
-}
-
-/**
- * Generates a null implementation of the service.
- *
- * @param tservice The service to generate a header definition for
- */
-void t_cpp_generator::generate_service_null(t_service* tservice, string style) {
- string extends = "";
- if (tservice->get_extends() != NULL) {
- extends = " , virtual public " + type_name(tservice->get_extends()) + style + "Null";
- }
- f_header_ << "class " << service_name_ << style << "Null : virtual public " << service_name_
- << style << "If" << extends << " {" << endl << " public:" << endl;
- indent_up();
- f_header_ << indent() << "virtual ~" << service_name_ << style << "Null() {}" << 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) {
- f_header_ << indent() << function_signature(*f_iter, style, "", false) << " {" << endl;
- indent_up();
-
- t_type* returntype = (*f_iter)->get_returntype();
- t_field returnfield(returntype, "_return");
-
- if (style == "") {
- if (returntype->is_void() || is_complex_type(returntype)) {
- f_header_ << indent() << "return;" << endl;
- } else {
- f_header_ << indent() << declare_field(&returnfield, true) << endl << indent()
- << "return _return;" << endl;
- }
- } else if (style == "CobSv") {
- if (returntype->is_void()) {
- f_header_ << indent() << "return cob();" << endl;
- } else {
- t_field returnfield(returntype, "_return");
- f_header_ << indent() << declare_field(&returnfield, true) << endl << indent()
- << "return cob(_return);" << endl;
- }
-
- } else {
- throw "UNKNOWN STYLE";
- }
-
- indent_down();
- f_header_ << indent() << "}" << endl;
- }
- indent_down();
- f_header_ << "};" << endl << endl;
-}
-
-void t_cpp_generator::generate_function_call(ostream& out,
- t_function* tfunction,
- string target,
- string iface,
- string arg_prefix) {
- bool first = true;
- t_type* ret_type = get_true_type(tfunction->get_returntype());
- out << indent();
- if (!tfunction->is_oneway() && !ret_type->is_void()) {
- if (is_complex_type(ret_type)) {
- first = false;
- out << iface << "->" << tfunction->get_name() << "(" << target;
- } else {
- out << target << " = " << iface << "->" << tfunction->get_name() << "(";
- }
- } else {
- out << iface << "->" << tfunction->get_name() << "(";
- }
- const std::vector<t_field*>& fields = tfunction->get_arglist()->get_members();
- vector<t_field*>::const_iterator f_iter;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- out << ", ";
- }
- out << arg_prefix << (*f_iter)->get_name();
- }
- out << ");" << endl;
-}
-
-void t_cpp_generator::generate_service_async_skeleton(t_service* tservice) {
- string svcname = tservice->get_name();
-
- // Service implementation file includes
- string f_skeleton_name = get_out_dir() + svcname + "_async_server.skeleton.cpp";
-
- string ns = namespace_prefix(tservice->get_program()->get_namespace("cpp"));
-
- ofstream f_skeleton;
- f_skeleton.open(f_skeleton_name.c_str());
- f_skeleton << "// This autogenerated skeleton file illustrates one way to adapt a synchronous"
- << endl << "// interface into an asynchronous interface. You should copy it to another"
- << endl
- << "// filename to avoid overwriting it and rewrite as asynchronous any functions"
- << endl << "// that would otherwise introduce unwanted latency." << endl << endl
- << "#include \"" << get_include_prefix(*get_program()) << svcname << ".h\"" << endl
- << "#include <thrift/protocol/TBinaryProtocol.h>" << endl << endl
- << "using namespace ::apache::thrift;" << endl
- << "using namespace ::apache::thrift::protocol;" << endl
- << "using namespace ::apache::thrift::transport;" << endl
- << "using namespace ::apache::thrift::async;" << endl << endl
- << "using boost::shared_ptr;" << endl << endl;
-
- // the following code would not compile:
- // using namespace ;
- // using namespace ::;
- if ((!ns.empty()) && (ns.compare(" ::") != 0)) {
- f_skeleton << "using namespace " << string(ns, 0, ns.size() - 2) << ";" << endl << endl;
- }
-
- f_skeleton << "class " << svcname << "AsyncHandler : "
- << "public " << svcname << "CobSvIf {" << endl << " public:" << endl;
- indent_up();
- f_skeleton << indent() << svcname << "AsyncHandler() {" << endl << indent()
- << " syncHandler_ = std::auto_ptr<" << svcname << "Handler>(new " << svcname
- << "Handler);" << endl << indent() << " // Your initialization goes here" << endl
- << indent() << "}" << endl;
- f_skeleton << indent() << "virtual ~" << service_name_ << "AsyncHandler();" << 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) {
- f_skeleton << endl << indent() << function_signature(*f_iter, "CobSv", "", true) << " {"
- << endl;
- indent_up();
-
- t_type* returntype = (*f_iter)->get_returntype();
- t_field returnfield(returntype, "_return");
-
- string target = returntype->is_void() ? "" : "_return";
- if (!returntype->is_void()) {
- f_skeleton << indent() << declare_field(&returnfield, true) << endl;
- }
- generate_function_call(f_skeleton, *f_iter, target, "syncHandler_", "");
- f_skeleton << indent() << "return cob(" << target << ");" << endl;
-
- scope_down(f_skeleton);
- }
- f_skeleton << endl << " protected:" << endl << indent() << "std::auto_ptr<" << svcname
- << "Handler> syncHandler_;" << endl;
- indent_down();
- f_skeleton << "};" << endl << endl;
-}
-
-/**
- * Generates a multiface, which is a single server that just takes a set
- * of objects implementing the interface and calls them all, returning the
- * value of the last one to be called.
- *
- * @param tservice The service to generate a multiserver for.
- */
-void t_cpp_generator::generate_service_multiface(t_service* tservice) {
- // Generate the dispatch methods
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::iterator f_iter;
-
- string extends = "";
- string extends_multiface = "";
- if (tservice->get_extends() != NULL) {
- extends = type_name(tservice->get_extends());
- extends_multiface = ", public " + extends + "Multiface";
- }
-
- string list_type = string("std::vector<boost::shared_ptr<") + service_name_ + "If> >";
-
- // Generate the header portion
- f_header_ << "class " << service_name_ << "Multiface : "
- << "virtual public " << service_name_ << "If" << extends_multiface << " {" << endl
- << " public:" << endl;
- indent_up();
- f_header_ << indent() << service_name_ << "Multiface(" << list_type
- << "& ifaces) : ifaces_(ifaces) {" << endl;
- if (!extends.empty()) {
- f_header_ << indent()
- << " std::vector<boost::shared_ptr<" + service_name_ + "If> >::iterator iter;"
- << endl << indent() << " for (iter = ifaces.begin(); iter != ifaces.end(); ++iter) {"
- << endl << indent() << " " << extends << "Multiface::add(*iter);" << endl
- << indent() << " }" << endl;
- }
- f_header_ << indent() << "}" << endl << indent() << "virtual ~" << service_name_
- << "Multiface() {}" << endl;
- indent_down();
-
- // Protected data members
- f_header_ << " protected:" << endl;
- indent_up();
- f_header_ << indent() << list_type << " ifaces_;" << endl << indent() << service_name_
- << "Multiface() {}" << endl << indent() << "void add(boost::shared_ptr<"
- << service_name_ << "If> iface) {" << endl;
- if (!extends.empty()) {
- f_header_ << indent() << " " << extends << "Multiface::add(iface);" << endl;
- }
- f_header_ << indent() << " ifaces_.push_back(iface);" << endl << indent() << "}" << endl;
- indent_down();
-
- f_header_ << indent() << " public:" << endl;
- indent_up();
-
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- t_struct* arglist = (*f_iter)->get_arglist();
- const vector<t_field*>& args = arglist->get_members();
- vector<t_field*>::const_iterator a_iter;
-
- string call = string("ifaces_[i]->") + (*f_iter)->get_name() + "(";
- bool first = true;
- if (is_complex_type((*f_iter)->get_returntype())) {
- call += "_return";
- first = false;
- }
- for (a_iter = args.begin(); a_iter != args.end(); ++a_iter) {
- if (first) {
- first = false;
- } else {
- call += ", ";
- }
- call += (*a_iter)->get_name();
- }
- call += ")";
-
- f_header_ << indent() << function_signature(*f_iter, "") << " {" << endl;
- indent_up();
- f_header_ << indent() << "size_t sz = ifaces_.size();" << endl << indent() << "size_t i = 0;"
- << endl << indent() << "for (; i < (sz - 1); ++i) {" << endl;
- indent_up();
- f_header_ << indent() << call << ";" << endl;
- indent_down();
- f_header_ << indent() << "}" << endl;
-
- if (!(*f_iter)->get_returntype()->is_void()) {
- if (is_complex_type((*f_iter)->get_returntype())) {
- f_header_ << indent() << call << ";" << endl << indent() << "return;" << endl;
- } else {
- f_header_ << indent() << "return " << call << ";" << endl;
- }
- } else {
- f_header_ << indent() << call << ";" << endl;
- }
-
- indent_down();
- f_header_ << indent() << "}" << endl << endl;
- }
-
- indent_down();
- f_header_ << indent() << "};" << endl << endl;
-}
-
-/**
- * Generates a service client definition.
- *
- * @param tservice The service to generate a server for.
- */
-void t_cpp_generator::generate_service_client(t_service* tservice, string style) {
- string ifstyle;
- if (style == "Cob") {
- ifstyle = "CobCl";
- }
-
- std::ofstream& out = (gen_templates_ ? f_service_tcc_ : f_service_);
- string template_header, template_suffix, short_suffix, protocol_type, _this;
- string const prot_factory_type = "::apache::thrift::protocol::TProtocolFactory";
- if (gen_templates_) {
- template_header = "template <class Protocol_>\n";
- short_suffix = "T";
- template_suffix = "T<Protocol_>";
- protocol_type = "Protocol_";
- _this = "this->";
- } else {
- protocol_type = "::apache::thrift::protocol::TProtocol";
- }
- string prot_ptr = "boost::shared_ptr< " + protocol_type + ">";
- string client_suffix = "Client" + template_suffix;
- string if_suffix = "If";
- if (style == "Cob") {
- if_suffix += template_suffix;
- }
-
- string extends = "";
- string extends_client = "";
- if (tservice->get_extends() != NULL) {
- // TODO(simpkins): If gen_templates_ is enabled, we currently assume all
- // parent services were also generated with templates enabled.
- extends = type_name(tservice->get_extends());
- extends_client = ", public " + extends + style + client_suffix;
- }
-
- // Generate the header portion
- if(style == "Concurrent")
- {
- f_header_ <<
- "// The \'concurrent\' client is a thread safe client that correctly handles\n"
- "// out of order responses. It is slower than the regular client, so should\n"
- "// only be used when you need to share a connection among multiple threads\n";
- }
- f_header_ << template_header << "class " << service_name_ << style << "Client" << short_suffix
- << " : "
- << "virtual public " << service_name_ << ifstyle << if_suffix << extends_client << " {"
- << endl << " public:" << endl;
-
- indent_up();
- if (style != "Cob") {
- f_header_ << indent() << service_name_ << style << "Client" << short_suffix << "(" << prot_ptr
- << " prot) ";
-
- if (extends.empty()) {
- f_header_ << "{" << endl;
- f_header_ << indent() << " setProtocol" << short_suffix << "(prot);" << endl << indent()
- << "}" << endl;
- } else {
- f_header_ << ":" << endl;
- f_header_ << indent() << " " << extends << style << client_suffix << "(prot, prot) {}"
- << endl;
- }
-
- f_header_ << indent() << service_name_ << style << "Client" << short_suffix << "(" << prot_ptr
- << " iprot, " << prot_ptr << " oprot) ";
- if (extends.empty()) {
- f_header_ << "{" << endl;
- f_header_ << indent() << " setProtocol" << short_suffix << "(iprot,oprot);" << endl
- << indent() << "}" << endl;
- } else {
- f_header_ << ":" << indent() << " " << extends << style << client_suffix
- << "(iprot, oprot) {}" << endl;
- }
-
- // create the setProtocol methods
- if (extends.empty()) {
- f_header_ << " private:" << endl;
- // 1: one parameter
- f_header_ << indent() << "void setProtocol" << short_suffix << "(" << prot_ptr << " prot) {"
- << endl;
- f_header_ << indent() << "setProtocol" << short_suffix << "(prot,prot);" << endl;
- f_header_ << indent() << "}" << endl;
- // 2: two parameter
- f_header_ << indent() << "void setProtocol" << short_suffix << "(" << prot_ptr << " iprot, "
- << prot_ptr << " oprot) {" << endl;
-
- f_header_ << indent() << " piprot_=iprot;" << endl << indent() << " poprot_=oprot;" << endl
- << indent() << " iprot_ = iprot.get();" << endl << indent()
- << " oprot_ = oprot.get();" << endl;
-
- f_header_ << indent() << "}" << endl;
- f_header_ << " public:" << endl;
- }
-
- // Generate getters for the protocols.
- // Note that these are not currently templated for simplicity.
- // TODO(simpkins): should they be templated?
- f_header_ << indent()
- << "boost::shared_ptr< ::apache::thrift::protocol::TProtocol> getInputProtocol() {"
- << endl << indent() << " return " << _this << "piprot_;" << endl << indent() << "}"
- << endl;
-
- f_header_ << indent()
- << "boost::shared_ptr< ::apache::thrift::protocol::TProtocol> getOutputProtocol() {"
- << endl << indent() << " return " << _this << "poprot_;" << endl << indent() << "}"
- << endl;
-
- } else /* if (style == "Cob") */ {
- f_header_ << indent() << service_name_ << style << "Client" << short_suffix << "("
- << "boost::shared_ptr< ::apache::thrift::async::TAsyncChannel> channel, "
- << "::apache::thrift::protocol::TProtocolFactory* protocolFactory) :" << endl;
- if (extends.empty()) {
- f_header_ << indent() << " channel_(channel)," << endl << indent()
- << " itrans_(new ::apache::thrift::transport::TMemoryBuffer())," << endl
- << indent() << " otrans_(new ::apache::thrift::transport::TMemoryBuffer()),"
- << endl;
- if (gen_templates_) {
- // TProtocolFactory classes return generic TProtocol pointers.
- // We have to dynamic cast to the Protocol_ type we are expecting.
- f_header_ << indent() << " piprot_(boost::dynamic_pointer_cast<Protocol_>("
- << "protocolFactory->getProtocol(itrans_)))," << endl << indent()
- << " poprot_(boost::dynamic_pointer_cast<Protocol_>("
- << "protocolFactory->getProtocol(otrans_))) {" << endl;
- // Throw a TException if either dynamic cast failed.
- f_header_ << indent() << " if (!piprot_ || !poprot_) {" << endl << indent()
- << " throw ::apache::thrift::TException(\""
- << "TProtocolFactory returned unexpected protocol type in " << service_name_
- << style << "Client" << short_suffix << " constructor\");" << endl << indent()
- << " }" << endl;
- } else {
- f_header_ << indent() << " piprot_(protocolFactory->getProtocol(itrans_))," << endl
- << indent() << " poprot_(protocolFactory->getProtocol(otrans_)) {" << endl;
- }
- f_header_ << indent() << " iprot_ = piprot_.get();" << endl << indent()
- << " oprot_ = poprot_.get();" << endl << indent() << "}" << endl;
- } else {
- f_header_ << indent() << " " << extends << style << client_suffix
- << "(channel, protocolFactory) {}" << endl;
- }
- }
-
- if (style == "Cob") {
- f_header_ << indent()
- << "boost::shared_ptr< ::apache::thrift::async::TAsyncChannel> getChannel() {" << endl
- << indent() << " return " << _this << "channel_;" << endl << indent() << "}" << endl;
- if (!gen_no_client_completion_) {
- f_header_ << indent() << "virtual void completed__(bool /* success */) {}" << endl;
- }
- }
-
- 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) {
- indent(f_header_) << function_signature(*f_iter, ifstyle) << ";" << endl;
- // TODO(dreiss): Use private inheritance to avoid generating thise in cob-style.
- if(style == "Concurrent" && !(*f_iter)->is_oneway()) {
- // concurrent clients need to move the seqid from the send function to the
- // recv function. Oneway methods don't have a recv function, so we don't need to
- // move the seqid for them. Attempting to do so would result in a seqid leak.
- t_function send_function(g_type_i32, /*returning seqid*/
- string("send_") + (*f_iter)->get_name(),
- (*f_iter)->get_arglist());
- indent(f_header_) << function_signature(&send_function, "") << ";" << endl;
- }
- else {
- t_function send_function(g_type_void,
- string("send_") + (*f_iter)->get_name(),
- (*f_iter)->get_arglist());
- indent(f_header_) << function_signature(&send_fu
<TRUNCATED>