http://git-wip-us.apache.org/repos/asf/incubator-hawq/blob/928eade3/depends/thirdparty/thrift/compiler/cpp/src/generate/t_go_generator.cc ---------------------------------------------------------------------- diff --git a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_go_generator.cc b/depends/thirdparty/thrift/compiler/cpp/src/generate/t_go_generator.cc deleted file mode 100644 index f04bc48..0000000 --- a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_go_generator.cc +++ /dev/null @@ -1,3582 +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. - */ - -/* - * This file is programmatically sanitized for style: - * astyle --style=1tbs -f -p -H -j -U t_go_generator.cc - * - * The output of astyle should not be taken unquestioningly, but it is a good - * guide for ensuring uniformity and readability. - */ - -#include <string> -#include <fstream> -#include <iostream> -#include <vector> - -#include <stdlib.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sstream> -#include <algorithm> -#include <clocale> -#include "t_generator.h" -#include "platform.h" -#include "version.h" - -using std::map; -using std::ofstream; -using std::ostringstream; -using std::string; -using std::stringstream; -using std::vector; - -static const string endl = "\n"; // avoid ostream << std::endl flushes - -/** - * A helper for automatically formatting the emitted Go code from the Thrift - * IDL per the Go style guide. - * - * Returns: - * - true, if the formatting process succeeded. - * - false, if the formatting process failed, which means the basic output was - * still generated. - */ -bool format_go_output(const string& file_path); - -const string default_thrift_import = "git.apache.org/thrift.git/lib/go/thrift"; -static std::string package_flag; - -/** - * Go code generator. - */ -class t_go_generator : public t_generator { -public: - t_go_generator(t_program* program, - const std::map<std::string, std::string>& parsed_options, - const std::string& option_string) - : t_generator(program) { - (void)option_string; - std::map<std::string, std::string>::const_iterator iter; - out_dir_base_ = "gen-go"; - gen_thrift_import_ = default_thrift_import; - - iter = parsed_options.find("package_prefix"); - - if (iter != parsed_options.end()) { - gen_package_prefix_ = (iter->second); - } - - iter = parsed_options.find("thrift_import"); - - if (iter != parsed_options.end()) { - gen_thrift_import_ = (iter->second); - } - - iter = parsed_options.find("package"); - - if (iter != parsed_options.end()) { - package_flag = (iter->second); - } - - iter = parsed_options.find("read_write_private"); - read_write_private_ = (iter != parsed_options.end()); - - iter = parsed_options.find("ignore_initialisms"); - ignore_initialisms_ = (iter != parsed_options.end()); - } - - /** - * Init and close methods - */ - - void init_generator(); - void close_generator(); - - /** - * Program-level generation functions - */ - - void generate_typedef(t_typedef* ttypedef); - void generate_enum(t_enum* tenum); - void generate_const(t_const* tconst); - void generate_struct(t_struct* tstruct); - void generate_xception(t_struct* txception); - void generate_service(t_service* tservice); - - std::string render_const_value(t_type* type, t_const_value* value, const string& name); - - /** - * Struct generation code - */ - - void generate_go_struct(t_struct* tstruct, bool is_exception); - void generate_go_struct_definition(std::ofstream& out, - t_struct* tstruct, - bool is_xception = false, - bool is_result = false, - bool is_args = false); - void generate_go_struct_initializer(std::ofstream& out, - t_struct* tstruct, - bool is_args_or_result = false); - void generate_isset_helpers(std::ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result = false); - void generate_countsetfields_helper(std::ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result = false); - void generate_go_struct_reader(std::ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result = false); - void generate_go_struct_writer(std::ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result = false, - bool uses_countsetfields = false); - void generate_go_function_helpers(t_function* tfunction); - void get_publicized_name_and_def_value(t_field* tfield, - string* OUT_pub_name, - t_const_value** OUT_def_value) const; - - /** - * Service-level generation functions - */ - - void generate_service_helpers(t_service* tservice); - void generate_service_interface(t_service* tservice); - void generate_service_client(t_service* tservice); - void generate_service_remote(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, - bool declare, - std::string prefix = "", - bool inclass = false, - bool coerceData = false, - bool inkey = false, - bool in_container = false, - bool use_true_type = false); - - void generate_deserialize_struct(std::ofstream& out, - t_struct* tstruct, - bool is_pointer_field, - bool declare, - std::string prefix = ""); - - void generate_deserialize_container(std::ofstream& out, - t_type* ttype, - bool pointer_field, - bool declare, - std::string prefix = ""); - - void generate_deserialize_set_element(std::ofstream& out, - t_set* tset, - bool declare, - std::string prefix = ""); - - void generate_deserialize_map_element(std::ofstream& out, - t_map* tmap, - bool declare, - std::string prefix = ""); - - void generate_deserialize_list_element(std::ofstream& out, - t_list* tlist, - bool declare, - std::string prefix = ""); - - void generate_serialize_field(std::ofstream& out, - t_field* tfield, - std::string prefix = "", - bool inkey = false); - - void generate_serialize_struct(std::ofstream& out, t_struct* tstruct, std::string prefix = ""); - - void generate_serialize_container(std::ofstream& out, - t_type* ttype, - bool pointer_field, - std::string prefix = ""); - - void generate_serialize_map_element(std::ofstream& out, - t_map* tmap, - std::string kiter, - std::string viter); - - 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_go_docstring(std::ofstream& out, t_struct* tstruct); - - void generate_go_docstring(std::ofstream& out, t_function* tfunction); - - void generate_go_docstring(std::ofstream& out, - t_doc* tdoc, - t_struct* tstruct, - const char* subheader); - - void generate_go_docstring(std::ofstream& out, t_doc* tdoc); - - /** - * Helper rendering functions - */ - - std::string go_autogen_comment(); - std::string go_package(); - std::string go_imports_begin(); - std::string go_imports_end(); - std::string render_includes(); - std::string render_import_protection(); - std::string render_fastbinary_includes(); - std::string declare_argument(t_field* tfield); - std::string render_field_initial_value(t_field* tfield, const string& name, bool optional_field); - std::string type_name(t_type* ttype); - std::string function_signature(t_function* tfunction, std::string prefix = ""); - std::string function_signature_if(t_function* tfunction, - std::string prefix = "", - bool addError = false); - std::string argument_list(t_struct* tstruct); - std::string type_to_enum(t_type* ttype); - std::string type_to_go_type(t_type* ttype, bool is_container_value = false); - std::string type_to_go_type_with_opt(t_type* ttype, - bool optional_field, - bool is_container_value = false); - std::string type_to_go_key_type(t_type* ttype); - std::string type_to_spec_args(t_type* ttype); - - static std::string get_real_go_module(const t_program* program) { - - if (!package_flag.empty()) { - return package_flag; - } - std::string real_module = program->get_namespace("go"); - if (!real_module.empty()) { - return real_module; - } - - return lowercase(program->get_name()); - } - -private: - std::string gen_package_prefix_; - std::string gen_thrift_import_; - bool read_write_private_; - bool ignore_initialisms_; - - /** - * File streams - */ - - std::ofstream f_types_; - std::string f_types_name_; - std::ofstream f_consts_; - std::string f_consts_name_; - std::stringstream f_const_values_; - std::ofstream f_service_; - - std::string package_name_; - std::string package_dir_; - std::string read_method_name_; - std::string write_method_name_; - - std::set<std::string> commonInitialisms; - - std::string camelcase(const std::string& value) const; - void fix_common_initialism(std::string& value, int i) const; - std::string publicize(const std::string& value, bool is_args_or_result = false) const; - std::string privatize(const std::string& value) const; - std::string new_prefix(const std::string& value) const; - static std::string variable_name_to_go_name(const std::string& value); - static bool is_pointer_field(t_field* tfield, bool in_container = false); - static bool omit_initialization(t_field* tfield); -}; - -// returns true if field initialization can be omitted since it has corresponding go type zero value -// or default value is not set -bool t_go_generator::omit_initialization(t_field* tfield) { - t_const_value* value = tfield->get_value(); - if (!value) { - return true; - } - t_type* type = tfield->get_type()->get_true_type(); - 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 ""; - - case t_base_type::TYPE_STRING: - if (((t_base_type*)type)->is_binary()) { - //[]byte are always inline - return false; - } - // strings are pointers if has no default - return value->get_string().empty(); - - case t_base_type::TYPE_BOOL: - case t_base_type::TYPE_BYTE: - case t_base_type::TYPE_I16: - case t_base_type::TYPE_I32: - case t_base_type::TYPE_I64: - return value->get_integer() == 0; - case t_base_type::TYPE_DOUBLE: - if (value->get_type() == t_const_value::CV_INTEGER) { - return value->get_integer() == 0; - } else { - return value->get_double() == 0.; - } - } - } - return false; -} - -// Returns true if the type need a reference if used as optional without default -static bool type_need_reference(t_type* type) { - type = type->get_true_type(); - if (type->is_map() || type->is_set() || type->is_list() || type->is_struct() - || type->is_xception() || (type->is_string() && ((t_base_type*)type)->is_binary())) { - return false; - } - return true; -} - -// returns false if field could not use comparison to default value as !IsSet* -bool t_go_generator::is_pointer_field(t_field* tfield, bool in_container_value) { - (void)in_container_value; - if (tfield->annotations_.count("cpp.ref") != 0) { - return true; - } - t_type* type = tfield->get_type()->get_true_type(); - // Structs in containers are pointers - if (type->is_struct() || type->is_xception()) { - return true; - } - if (!(tfield->get_req() == t_field::T_OPTIONAL)) { - return false; - } - - bool has_default = tfield->get_value(); - 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 ""; - - case t_base_type::TYPE_STRING: - if (((t_base_type*)type)->is_binary()) { - //[]byte are always inline - return false; - } - // strings are pointers if has no default - return !has_default; - - case t_base_type::TYPE_BOOL: - case t_base_type::TYPE_BYTE: - case t_base_type::TYPE_I16: - case t_base_type::TYPE_I32: - case t_base_type::TYPE_I64: - case t_base_type::TYPE_DOUBLE: - return !has_default; - } - } else if (type->is_enum()) { - return !has_default; - } else if (type->is_struct() || type->is_xception()) { - return true; - } else if (type->is_map()) { - return has_default; - } else if (type->is_set()) { - return has_default; - } else if (type->is_list()) { - return has_default; - } else if (type->is_typedef()) { - return has_default; - } - - throw "INVALID TYPE IN type_to_go_type: " + type->get_name(); -} - -std::string t_go_generator::camelcase(const std::string& value) const { - std::string value2(value); - std::setlocale(LC_ALL, "C"); // set locale to classic - - // Fix common initialism in first word - fix_common_initialism(value2, 0); - - // as long as we are changing things, let's change _ followed by lowercase to - // capital and fix common initialisms - for (std::string::size_type i = 1; i < value2.size() - 1; ++i) { - if (value2[i] == '_') { - if (islower(value2[i + 1])) { - value2.replace(i, 2, 1, toupper(value2[i + 1])); - } - fix_common_initialism(value2, i); - } - } - - return value2; -} - -// Checks to see if the word starting at i in value contains a common initialism -// and if so replaces it with the upper case version of the word. -void t_go_generator::fix_common_initialism(std::string& value, int i) const { - if (!ignore_initialisms_) { - size_t wordLen = value.find('_', i); - if (wordLen != std::string::npos) { - wordLen -= i; - } - std::string word = value.substr(i, wordLen); - std::transform(word.begin(), word.end(), word.begin(), ::toupper); - if (commonInitialisms.find(word) != commonInitialisms.end()) { - value.replace(i, word.length(), word); - } - } -} - -std::string t_go_generator::publicize(const std::string& value, bool is_args_or_result) const { - if (value.size() <= 0) { - return value; - } - - std::string value2(value), prefix; - - string::size_type dot_pos = value.rfind('.'); - if (dot_pos != string::npos) { - prefix = value.substr(0, dot_pos + 1) + prefix; - value2 = value.substr(dot_pos + 1); - } - - if (!isupper(value2[0])) { - value2[0] = toupper(value2[0]); - } - - value2 = camelcase(value2); - - // final length before further checks, the string may become longer - size_t len_before = value2.length(); - - // IDL identifiers may start with "New" which interferes with the CTOR pattern - // Adding an extra underscore to all those identifiers solves this - if ((len_before >= 3) && (value2.substr(0, 3) == "New")) { - value2 += '_'; - } - - // IDL identifiers may end with "Args"/"Result" which interferes with the implicit service - // function structs - // Adding another extra underscore to all those identifiers solves this - // Suppress this check for the actual helper struct names - if (!is_args_or_result) { - bool ends_with_args = (len_before >= 4) && (value2.substr(len_before - 4, 4) == "Args"); - bool ends_with_rslt = (len_before >= 6) && (value2.substr(len_before - 6, 6) == "Result"); - if (ends_with_args || ends_with_rslt) { - value2 += '_'; - } - } - - // Avoid naming collisions with other services - if (is_args_or_result) { - prefix += publicize(service_name_); - } - - return prefix + value2; -} - -std::string t_go_generator::new_prefix(const std::string& value) const { - if (value.size() <= 0) { - return value; - } - - string::size_type dot_pos = value.rfind('.'); - if (dot_pos != string::npos) { - return value.substr(0, dot_pos + 1) + "New" + publicize(value.substr(dot_pos + 1)); - } - return "New" + publicize(value); -} - -std::string t_go_generator::privatize(const std::string& value) const { - if (value.size() <= 0) { - return value; - } - - std::string value2(value); - - if (!islower(value2[0])) { - value2[0] = tolower(value2[0]); - } - - value2 = camelcase(value2); - - return value2; -} - -std::string t_go_generator::variable_name_to_go_name(const std::string& value) { - if (value.size() <= 0) { - return value; - } - - std::string value2(value); - std::transform(value2.begin(), value2.end(), value2.begin(), ::tolower); - - switch (value[0]) { - case 'b': - case 'B': - if (value2 != "break") { - return value; - } - - break; - - case 'c': - case 'C': - if (value2 != "case" && value2 != "chan" && value2 != "const" && value2 != "continue") { - return value; - } - - break; - - case 'd': - case 'D': - if (value2 != "default" && value2 != "defer") { - return value; - } - - break; - - case 'e': - case 'E': - if (value2 != "else" && value2 != "error") { - return value; - } - - break; - - case 'f': - case 'F': - if (value2 != "fallthrough" && value2 != "for" && value2 != "func") { - return value; - } - - break; - - case 'g': - case 'G': - if (value2 != "go" && value2 != "goto") { - return value; - } - - break; - - case 'i': - case 'I': - if (value2 != "if" && value2 != "import" && value2 != "interface") { - return value; - } - - break; - - case 'm': - case 'M': - if (value2 != "map") { - return value; - } - - break; - - case 'p': - case 'P': - if (value2 != "package") { - return value; - } - - break; - - case 'r': - case 'R': - if (value2 != "range" && value2 != "return") { - return value; - } - - break; - - case 's': - case 'S': - if (value2 != "select" && value2 != "struct" && value2 != "switch") { - return value; - } - - break; - - case 't': - case 'T': - if (value2 != "type") { - return value; - } - - break; - - case 'v': - case 'V': - if (value2 != "var") { - return value; - } - - break; - - default: - return value; - } - - return value2 + "_a1"; -} - -/** - * Prepares for file generation by opening up the necessary file output - * streams. - * - * @param tprogram The program to generate - */ -void t_go_generator::init_generator() { - // Make output directory - string module = get_real_go_module(program_); - string target = module; - package_dir_ = get_out_dir(); - - // This set is taken from https://github.com/golang/lint/blob/master/lint.go#L692 - commonInitialisms.insert("API"); - commonInitialisms.insert("ASCII"); - commonInitialisms.insert("CPU"); - commonInitialisms.insert("CSS"); - commonInitialisms.insert("DNS"); - commonInitialisms.insert("EOF"); - commonInitialisms.insert("GUID"); - commonInitialisms.insert("HTML"); - commonInitialisms.insert("HTTP"); - commonInitialisms.insert("HTTPS"); - commonInitialisms.insert("ID"); - commonInitialisms.insert("IP"); - commonInitialisms.insert("JSON"); - commonInitialisms.insert("LHS"); - commonInitialisms.insert("QPS"); - commonInitialisms.insert("RAM"); - commonInitialisms.insert("RHS"); - commonInitialisms.insert("RPC"); - commonInitialisms.insert("SLA"); - commonInitialisms.insert("SMTP"); - commonInitialisms.insert("SSH"); - commonInitialisms.insert("TCP"); - commonInitialisms.insert("TLS"); - commonInitialisms.insert("TTL"); - commonInitialisms.insert("UDP"); - commonInitialisms.insert("UI"); - commonInitialisms.insert("UID"); - commonInitialisms.insert("UUID"); - commonInitialisms.insert("URI"); - commonInitialisms.insert("URL"); - commonInitialisms.insert("UTF8"); - commonInitialisms.insert("VM"); - commonInitialisms.insert("XML"); - commonInitialisms.insert("XSRF"); - commonInitialisms.insert("XSS"); - - // names of read and write methods - if (read_write_private_) { - read_method_name_ = "read"; - write_method_name_ = "write"; - } else { - read_method_name_ = "Read"; - write_method_name_ = "Write"; - } - - while (true) { - // TODO: Do better error checking here. - MKDIR(package_dir_.c_str()); - - if (module.empty()) { - break; - } - - string::size_type pos = module.find('.'); - - if (pos == string::npos) { - package_dir_ += "/"; - package_dir_ += module; - package_name_ = module; - module.clear(); - } else { - package_dir_ += "/"; - package_dir_ += module.substr(0, pos); - module.erase(0, pos + 1); - } - } - - string::size_type loc; - - while ((loc = target.find(".")) != string::npos) { - target.replace(loc, 1, 1, '/'); - } - - // Make output files - f_types_name_ = package_dir_ + "/" + "ttypes.go"; - f_types_.open(f_types_name_.c_str()); - - f_consts_name_ = package_dir_ + "/" + "constants.go"; - f_consts_.open(f_consts_name_.c_str()); - - vector<t_service*> services = program_->get_services(); - vector<t_service*>::iterator sv_iter; - - for (sv_iter = services.begin(); sv_iter != services.end(); ++sv_iter) { - string service_dir = package_dir_ + "/" + underscore((*sv_iter)->get_name()) + "-remote"; - MKDIR(service_dir.c_str()); - } - - // Print header - f_types_ << go_autogen_comment() << go_package() << render_includes() - << render_import_protection(); - - f_consts_ << go_autogen_comment() << go_package() << render_includes(); - - f_const_values_ << endl << "func init() {" << endl; -} - -/** - * Renders all the imports necessary for including another Thrift program - */ -string t_go_generator::render_includes() { - const vector<t_program*>& includes = program_->get_includes(); - string result = ""; - string unused_prot = ""; - - for (size_t i = 0; i < includes.size(); ++i) { - string go_module = get_real_go_module(includes[i]); - size_t found = 0; - for (size_t j = 0; j < go_module.size(); j++) { - // Import statement uses slashes ('/') in namespace - if (go_module[j] == '.') { - go_module[j] = '/'; - found = j + 1; - } - } - - result += "\t\"" + gen_package_prefix_ + go_module + "\"\n"; - unused_prot += "var _ = " + go_module.substr(found) + ".GoUnusedProtection__\n"; - } - - if (includes.size() > 0) { - result += "\n"; - } - - return go_imports_begin() + result + go_imports_end() + unused_prot; -} - -string t_go_generator::render_import_protection() { - return string("var GoUnusedProtection__ int;\n\n"); -} - -/** - * Renders all the imports necessary to use the accelerated TBinaryProtocol - */ -string t_go_generator::render_fastbinary_includes() { - return ""; -} - -/** - * Autogen'd comment - */ -string t_go_generator::go_autogen_comment() { - return - std::string() + - "// Autogenerated by Thrift Compiler (" + THRIFT_VERSION + ")\n" - "// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING\n\n"; -} - -/** - * Prints standard thrift package - */ -string t_go_generator::go_package() { - return string("package ") + package_name_ + "\n\n"; -} - -/** - * Render the beginning of the import statement - */ -string t_go_generator::go_imports_begin() { - return string( - "import (\n" - "\t\"bytes\"\n" - "\t\"fmt\"\n" - "\t\"" + gen_thrift_import_ + "\"\n"); -} - -/** - * End the import statement, include undscore-assignments - * - * These "_ =" prevent the go compiler complaining about used imports. - * This will have to do in lieu of more intelligent import statement construction - */ -string t_go_generator::go_imports_end() { - return string( - ")\n\n" - "// (needed to ensure safety because of naive import list construction.)\n" - "var _ = thrift.ZERO\n" - "var _ = fmt.Printf\n" - "var _ = bytes.Equal\n\n"); -} - -/** - * Closes the type files - */ -void t_go_generator::close_generator() { - f_const_values_ << "}" << endl << endl; - f_consts_ << f_const_values_.str(); - - // Close types and constants files - f_consts_.close(); - f_types_.close(); - format_go_output(f_types_name_); - format_go_output(f_consts_name_); -} - -/** - * Generates a typedef. - * - * @param ttypedef The type definition - */ -void t_go_generator::generate_typedef(t_typedef* ttypedef) { - generate_go_docstring(f_types_, ttypedef); - string new_type_name(publicize(ttypedef->get_symbolic())); - string base_type(type_to_go_type(ttypedef->get_type())); - - if (base_type == new_type_name) { - return; - } - - f_types_ << "type " << new_type_name << " " << base_type << endl << endl; - // Generate a convenience function that converts an instance of a type - // (which may be a constant) into a pointer to an instance of a type. - f_types_ << "func " << new_type_name << "Ptr(v " << new_type_name << ") *" << new_type_name - << " { return &v }" << endl << endl; -} - -/** - * Generates code for an enumerated type. Done using a class to scope - * the values. - * - * @param tenum The enumeration - */ -void t_go_generator::generate_enum(t_enum* tenum) { - std::ostringstream to_string_mapping, from_string_mapping; - std::string tenum_name(publicize(tenum->get_name())); - generate_go_docstring(f_types_, tenum); - f_types_ << "type " << tenum_name << " int64" << endl << "const (" << endl; - - to_string_mapping << indent() << "func (p " << tenum_name << ") String() string {" << endl; - to_string_mapping << indent() << " switch p {" << endl; - - from_string_mapping << indent() << "func " << tenum_name << "FromString(s string) (" << tenum_name - << ", error) {" << endl; - from_string_mapping << indent() << " switch s {" << endl; - - vector<t_enum_value*> constants = tenum->get_constants(); - vector<t_enum_value*>::iterator c_iter; - int value = -1; - - for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) { - value = (*c_iter)->get_value(); - - string iter_std_name(escape_string((*c_iter)->get_name())); - string iter_name((*c_iter)->get_name()); - f_types_ << indent() << " " << tenum_name << "_" << iter_name << ' ' << tenum_name << " = " - << value << endl; - // Dictionaries to/from string names of enums - to_string_mapping << indent() << " case " << tenum_name << "_" << iter_name << ": return \"" - << iter_std_name << "\"" << endl; - - if (iter_std_name != escape_string(iter_name)) { - from_string_mapping << indent() << " case \"" << iter_std_name << "\", \"" - << escape_string(iter_name) << "\": return " << tenum_name << "_" - << iter_name << ", nil " << endl; - } else { - from_string_mapping << indent() << " case \"" << iter_std_name << "\": return " << tenum_name - << "_" << iter_name << ", nil " << endl; - } - } - - to_string_mapping << indent() << " }" << endl; - to_string_mapping << indent() << " return \"<UNSET>\"" << endl; - to_string_mapping << indent() << "}" << endl; - from_string_mapping << indent() << " }" << endl; - from_string_mapping << indent() << " return " << tenum_name << "(0)," - << " fmt.Errorf(\"not a valid " << tenum_name << " string\")" << endl; - from_string_mapping << indent() << "}" << endl; - - f_types_ << ")" << endl << endl << to_string_mapping.str() << endl << from_string_mapping.str() - << endl << endl; - - // Generate a convenience function that converts an instance of an enum - // (which may be a constant) into a pointer to an instance of that enum - // type. - f_types_ << "func " << tenum_name << "Ptr(v " << tenum_name << ") *" << tenum_name - << " { return &v }" << endl << endl; - - // Generate MarshalText - f_types_ << "func (p " << tenum_name << ") MarshalText() ([]byte, error) {" << endl; - f_types_ << "return []byte(p.String()), nil" << endl; - f_types_ << "}" << endl << endl; - - // Generate UnmarshalText - f_types_ << "func (p *" << tenum_name << ") UnmarshalText(text []byte) error {" << endl; - f_types_ << "q, err := " << tenum_name << "FromString(string(text))" << endl; - f_types_ << "if (err != nil) {" << endl << "return err" << endl << "}" << endl; - f_types_ << "*p = q" << endl; - f_types_ << "return nil" << endl; - f_types_ << "}" << endl; -} - -/** - * Generate a constant value - */ -void t_go_generator::generate_const(t_const* tconst) { - t_type* type = tconst->get_type(); - string name = publicize(tconst->get_name()); - t_const_value* value = tconst->get_value(); - - if (type->is_base_type() || type->is_enum()) { - indent(f_consts_) << "const " << name << " = " << render_const_value(type, value, name) << endl; - } else { - f_const_values_ << indent() << name << " = " << render_const_value(type, value, name) << endl - << endl; - - f_consts_ << indent() << "var " << name << " " << type_to_go_type(type) << 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 - */ -string t_go_generator::render_const_value(t_type* type, t_const_value* value, const string& name) { - type = get_true_type(type); - std::ostringstream out; - - 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: - if (((t_base_type*)type)->is_binary()) { - out << "[]byte(\"" << get_escaped_string(value) << "\")"; - } else { - out << '"' << get_escaped_string(value) << '"'; - } - - break; - - case t_base_type::TYPE_BOOL: - out << (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: - case t_base_type::TYPE_I64: - out << value->get_integer(); - break; - - case t_base_type::TYPE_DOUBLE: - if (value->get_type() == t_const_value::CV_INTEGER) { - out << value->get_integer(); - } else { - out << 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()) { - indent(out) << value->get_integer(); - } else if (type->is_struct() || type->is_xception()) { - out << "&" << publicize(type_name(type)) << "{"; - indent_up(); - 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; - - for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { - t_type* field_type = NULL; - - 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(); - } - } - - if (field_type == NULL) { - throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string(); - } - - out << endl << indent() << publicize(v_iter->first->get_string()) << ": " - << render_const_value(field_type, v_iter->second, name) << "," << endl; - } - - indent_down(); - out << "}"; - - } 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(); - out << "map[" << type_to_go_type(ktype) << "]" << type_to_go_type(vtype, true) << "{" << endl; - indent_up(); - map<t_const_value*, t_const_value*>::const_iterator v_iter; - - for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { - out << indent() << render_const_value(ktype, v_iter->first, name) << ": " - << render_const_value(vtype, v_iter->second, name) << "," << endl; - } - - indent_down(); - out << indent() << "}"; - } else if (type->is_list()) { - t_type* etype = ((t_list*)type)->get_elem_type(); - const vector<t_const_value*>& val = value->get_list(); - out << "[]" << type_to_go_type(etype) << "{" << endl; - indent_up(); - vector<t_const_value*>::const_iterator v_iter; - - for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { - out << indent() << render_const_value(etype, *v_iter, name) << ", "; - } - - indent_down(); - out << indent() << "}"; - } else if (type->is_set()) { - t_type* etype = ((t_set*)type)->get_elem_type(); - const vector<t_const_value*>& val = value->get_list(); - out << "map[" << type_to_go_key_type(etype) << "]bool{" << endl; - indent_up(); - vector<t_const_value*>::const_iterator v_iter; - - for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { - out << indent() << render_const_value(etype, *v_iter, name) << ": true," << endl; - } - - indent_down(); - out << indent() << "}"; - } else { - throw "CANNOT GENERATE CONSTANT FOR TYPE: " + type->get_name(); - } - - return out.str(); -} - -/** - * Generates a go struct - */ -void t_go_generator::generate_struct(t_struct* tstruct) { - generate_go_struct(tstruct, false); -} - -/** - * Generates a struct definition for a thrift exception. Basically the same - * as a struct but extends the Exception class. - * - * @param txception The struct definition - */ -void t_go_generator::generate_xception(t_struct* txception) { - generate_go_struct(txception, true); -} - -/** - * Generates a go struct - */ -void t_go_generator::generate_go_struct(t_struct* tstruct, bool is_exception) { - generate_go_struct_definition(f_types_, tstruct, is_exception); -} - -void t_go_generator::get_publicized_name_and_def_value(t_field* tfield, - string* OUT_pub_name, - t_const_value** OUT_def_value) const { - const string base_field_name = tfield->get_name(); - const string escaped_field_name = escape_string(base_field_name); - *OUT_pub_name = publicize(escaped_field_name); - *OUT_def_value = tfield->get_value(); -} - -void t_go_generator::generate_go_struct_initializer(ofstream& out, - t_struct* tstruct, - bool is_args_or_result) { - out << publicize(type_name(tstruct), is_args_or_result) << "{"; - const vector<t_field*>& members = tstruct->get_members(); - for (vector<t_field*>::const_iterator m_iter = members.begin(); m_iter != members.end(); - ++m_iter) { - bool pointer_field = is_pointer_field(*m_iter); - string publicized_name; - t_const_value* def_value; - get_publicized_name_and_def_value(*m_iter, &publicized_name, &def_value); - if (!pointer_field && def_value != NULL && !omit_initialization(*m_iter)) { - out << endl << indent() << publicized_name << ": " - << render_field_initial_value(*m_iter, (*m_iter)->get_name(), pointer_field) << "," - << endl; - } - } - - out << "}" << endl; -} - -/** - * Generates a struct definition for a thrift data type. - * - * @param tstruct The struct definition - */ -void t_go_generator::generate_go_struct_definition(ofstream& out, - t_struct* tstruct, - bool is_exception, - bool is_result, - bool is_args) { - const vector<t_field*>& members = tstruct->get_members(); - const vector<t_field*>& sorted_members = tstruct->get_sorted_members(); - vector<t_field*>::const_iterator m_iter; - - std::string tstruct_name(publicize(tstruct->get_name(), is_args || is_result)); - generate_go_docstring(out, tstruct); - out << indent() << "type " << tstruct_name << " struct {" << endl; - /* - Here we generate the structure specification for the fastbinary codec. - These specifications have the following structure: - thrift_spec -> tuple of item_spec - item_spec -> nil | (tag, type_enum, name, spec_args, default) - tag -> integer - type_enum -> TType.I32 | TType.STRING | TType.STRUCT | ... - name -> string_literal - default -> nil # Handled by __init__ - spec_args -> nil # For simple types - | (type_enum, spec_args) # Value type for list/set - | (type_enum, spec_args, type_enum, spec_args) - # Key and value for map - | (class_name, spec_args_ptr) # For struct/exception - class_name -> identifier # Basically a pointer to the class - spec_args_ptr -> expression # just class_name.spec_args - - TODO(dreiss): Consider making this work for structs with negative tags. - */ - // TODO(dreiss): Look into generating an empty tuple instead of nil - // for structures with no members. - // TODO(dreiss): Test encoding of structs where some inner structs - // don't have thrift_spec. - indent_up(); - - int num_setable = 0; - if (sorted_members.empty() || (sorted_members[0]->get_key() >= 0)) { - int sorted_keys_pos = 0; - - for (m_iter = sorted_members.begin(); m_iter != sorted_members.end(); ++m_iter) { - // Set field to optional if field is union, this is so we can get a - // pointer to the field. - if (tstruct->is_union()) - (*m_iter)->set_req(t_field::T_OPTIONAL); - if (sorted_keys_pos != (*m_iter)->get_key()) { - int first_unused = std::max(1, sorted_keys_pos++); - while (sorted_keys_pos != (*m_iter)->get_key()) { - ++sorted_keys_pos; - } - int last_unused = sorted_keys_pos - 1; - if (first_unused < last_unused) { - indent(out) << "// unused fields # " << first_unused << " to " << last_unused << endl; - } else if (first_unused == last_unused) { - indent(out) << "// unused field # " << first_unused << endl; - } - } - - t_type* fieldType = (*m_iter)->get_type(); - string goType = type_to_go_type_with_opt(fieldType, is_pointer_field(*m_iter)); - string gotag; - if ((*m_iter)->get_req() == t_field::T_OPTIONAL) { - gotag = "json:\"" + escape_string((*m_iter)->get_name()) + ",omitempty\""; - } else { - gotag = "json:\"" + escape_string((*m_iter)->get_name()) + "\""; - } - std::map<string, string>::iterator it = (*m_iter)->annotations_.find("go.tag"); - if (it != (*m_iter)->annotations_.end()) { - gotag = it->second; - } - indent(out) << publicize((*m_iter)->get_name()) << " " << goType << " `thrift:\"" - << escape_string((*m_iter)->get_name()) << "," << sorted_keys_pos; - - if ((*m_iter)->get_req() == t_field::T_REQUIRED) { - out << ",required"; - } - - out << "\" " << gotag << "`" << endl; - sorted_keys_pos++; - } - } else { - for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { - // This fills in default values, as opposed to nulls - out << indent() << publicize((*m_iter)->get_name()) << " " - << type_to_go_type((*m_iter)->get_type()) << endl; - } - } - - indent_down(); - out << indent() << "}" << endl << endl; - out << indent() << "func New" << tstruct_name << "() *" << tstruct_name << " {" << endl; - out << indent() << " return &"; - generate_go_struct_initializer(out, tstruct, is_result || is_args); - out << indent() << "}" << endl << endl; - // Default values for optional fields - for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { - string publicized_name; - t_const_value* def_value; - get_publicized_name_and_def_value(*m_iter, &publicized_name, &def_value); - t_type* fieldType = (*m_iter)->get_type(); - string goType = type_to_go_type_with_opt(fieldType, false); - string def_var_name = tstruct_name + "_" + publicized_name + "_DEFAULT"; - if ((*m_iter)->get_req() == t_field::T_OPTIONAL || is_pointer_field(*m_iter)) { - out << indent() << "var " << def_var_name << " " << goType; - if (def_value != NULL) { - out << " = " << render_const_value(fieldType, def_value, (*m_iter)->get_name()); - } - out << endl; - } - if (is_pointer_field(*m_iter)) { - string goOptType = type_to_go_type_with_opt(fieldType, true); - string maybepointer = goOptType != goType ? "*" : ""; - out << indent() << "func (p *" << tstruct_name << ") Get" << publicized_name << "() " - << goType << " {" << endl; - out << indent() << " if !p.IsSet" << publicized_name << "() {" << endl; - out << indent() << " return " << def_var_name << endl; - out << indent() << " }" << endl; - out << indent() << "return " << maybepointer << "p." << publicized_name << endl; - out << indent() << "}" << endl; - num_setable += 1; - } else { - out << endl; - out << indent() << "func (p *" << tstruct_name << ") Get" << publicized_name << "() " - << goType << " {" << endl; - out << indent() << " return p." << publicized_name << endl; - out << indent() << "}" << endl; - } - } - - if (tstruct->is_union() && num_setable > 0) { - generate_countsetfields_helper(out, tstruct, tstruct_name, is_result); - } - - generate_isset_helpers(out, tstruct, tstruct_name, is_result); - generate_go_struct_reader(out, tstruct, tstruct_name, is_result); - generate_go_struct_writer(out, tstruct, tstruct_name, is_result, num_setable > 0); - - out << indent() << "func (p *" << tstruct_name << ") String() string {" << endl; - out << indent() << " if p == nil {" << endl; - out << indent() << " return \"<nil>\"" << endl; - out << indent() << " }" << endl; - out << indent() << " return fmt.Sprintf(\"" << escape_string(tstruct_name) << "(%+v)\", *p)" - << endl; - out << indent() << "}" << endl << endl; - - if (is_exception) { - out << indent() << "func (p *" << tstruct_name << ") Error() string {" << endl; - out << indent() << " return p.String()" << endl; - out << indent() << "}" << endl << endl; - } -} - -/** - * Generates the IsSet helper methods for a struct - */ -void t_go_generator::generate_isset_helpers(ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result) { - (void)is_result; - const vector<t_field*>& fields = tstruct->get_members(); - vector<t_field*>::const_iterator f_iter; - const string escaped_tstruct_name(escape_string(tstruct->get_name())); - - for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { - const string field_name(publicize(escape_string((*f_iter)->get_name()))); - if ((*f_iter)->get_req() == t_field::T_OPTIONAL || is_pointer_field(*f_iter)) { - out << indent() << "func (p *" << tstruct_name << ") IsSet" << field_name << "() bool {" - << endl; - indent_up(); - t_type* ttype = (*f_iter)->get_type()->get_true_type(); - bool is_byteslice = ttype->is_base_type() && ((t_base_type*)ttype)->is_binary(); - bool compare_to_nil_only = ttype->is_set() || ttype->is_list() || ttype->is_map() - || (is_byteslice && !(*f_iter)->get_value()); - if (is_pointer_field(*f_iter) || compare_to_nil_only) { - out << indent() << "return p." << field_name << " != nil" << endl; - } else { - string def_var_name = tstruct_name + "_" + field_name + "_DEFAULT"; - if (is_byteslice) { - out << indent() << "return !bytes.Equal(p." << field_name << ", " << def_var_name << ")" - << endl; - } else { - out << indent() << "return p." << field_name << " != " << def_var_name << endl; - } - } - indent_down(); - out << indent() << "}" << endl << endl; - } - } -} - -/** - * Generates the CountSetFields helper method for a struct - */ -void t_go_generator::generate_countsetfields_helper(ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result) { - (void)is_result; - const vector<t_field*>& fields = tstruct->get_members(); - vector<t_field*>::const_iterator f_iter; - const string escaped_tstruct_name(escape_string(tstruct->get_name())); - - out << indent() << "func (p *" << tstruct_name << ") CountSetFields" << tstruct_name << "() int {" - << endl; - indent_up(); - out << indent() << "count := 0" << endl; - for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { - if ((*f_iter)->get_req() == t_field::T_REQUIRED) - continue; - - if (!is_pointer_field(*f_iter)) - continue; - - const string field_name(publicize(escape_string((*f_iter)->get_name()))); - - out << indent() << "if (p.IsSet" << field_name << "()) {" << endl; - indent_up(); - out << indent() << "count++" << endl; - indent_down(); - out << indent() << "}" << endl; - } - - out << indent() << "return count" << endl << endl; - indent_down(); - out << indent() << "}" << endl << endl; -} - -/** - * Generates the read method for a struct - */ -void t_go_generator::generate_go_struct_reader(ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result) { - (void)is_result; - const vector<t_field*>& fields = tstruct->get_members(); - vector<t_field*>::const_iterator f_iter; - string escaped_tstruct_name(escape_string(tstruct->get_name())); - out << indent() << "func (p *" << tstruct_name << ") " << read_method_name_ << "(iprot thrift.TProtocol) error {" - << endl; - indent_up(); - out << indent() << "if _, err := iprot.ReadStructBegin(); err != nil {" << endl; - out << indent() << " return thrift.PrependError(fmt.Sprintf(\"%T read error: \", p), err)" - << endl; - out << indent() << "}" << endl << endl; - - // Required variables does not have IsSet functions, 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) { - const string field_name(publicize(escape_string((*f_iter)->get_name()))); - indent(out) << "var isset" << field_name << " bool = false;" << endl; - } - } - out << endl; - - // Loop over reading in fields - indent(out) << "for {" << endl; - indent_up(); - // Read beginning field marker - out << indent() << "_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()" << endl; - out << indent() << "if err != nil {" << endl; - out << indent() << " return thrift.PrependError(fmt.Sprintf(" - "\"%T field %d read error: \", p, fieldId), err)" << endl; - out << indent() << "}" << endl; - // Check for field STOP marker and break - out << indent() << "if fieldTypeId == thrift.STOP { break; }" << endl; - - string thriftFieldTypeId; - // Generate deserialization code for known cases - int32_t field_id = -1; - - // Switch statement on the field we are reading, false if no fields present - bool have_switch = !fields.empty(); - if (have_switch) { - indent(out) << "switch fieldId {" << endl; - } - - // All the fields we know - for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { - field_id = (*f_iter)->get_key(); - - // if negative id, ensure we generate a valid method name - string field_method_prefix("readField"); - - if (field_id < 0) { - field_method_prefix += "_"; - field_id *= -1; - } - - out << indent() << "case " << field_id << ":" << endl; - indent_up(); - thriftFieldTypeId = type_to_enum((*f_iter)->get_type()); - - if (thriftFieldTypeId == "thrift.BINARY") { - thriftFieldTypeId = "thrift.STRING"; - } - - out << indent() << "if err := p." << field_method_prefix << field_id << "(iprot); err != nil {" - << endl; - out << indent() << " return err" << endl; - out << indent() << "}" << endl; - - // Mark required field as read - if ((*f_iter)->get_req() == t_field::T_REQUIRED) { - const string field_name(publicize(escape_string((*f_iter)->get_name()))); - out << indent() << "isset" << field_name << " = true" << endl; - } - - indent_down(); - } - - // Begin switch default case - if (have_switch) { - out << indent() << "default:" << endl; - indent_up(); - } - - // Skip unknown fields in either case - out << indent() << "if err := iprot.Skip(fieldTypeId); err != nil {" << endl; - out << indent() << " return err" << endl; - out << indent() << "}" << endl; - - // End switch default case - if (have_switch) { - indent_down(); - out << indent() << "}" << endl; - } - - // Read field end marker - out << indent() << "if err := iprot.ReadFieldEnd(); err != nil {" << endl; - out << indent() << " return err" << endl; - out << indent() << "}" << endl; - indent_down(); - out << indent() << "}" << endl; - out << indent() << "if err := iprot.ReadStructEnd(); err != nil {" << endl; - out << indent() << " return thrift.PrependError(fmt.Sprintf(" - "\"%T read struct end error: \", p), err)" << endl; - out << indent() << "}" << endl; - - // Return error if any required fields are missing. - for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { - if ((*f_iter)->get_req() == t_field::T_REQUIRED) { - const string field_name(publicize(escape_string((*f_iter)->get_name()))); - out << indent() << "if !isset" << field_name << "{" << endl; - out << indent() << " return thrift.NewTProtocolExceptionWithType(thrift.INVALID_DATA, " - "fmt.Errorf(\"Required field " << field_name << " is not set\"));" << endl; - out << indent() << "}" << endl; - } - } - - out << indent() << "return nil" << endl; - indent_down(); - out << indent() << "}" << endl << endl; - - for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { - string field_type_name(publicize((*f_iter)->get_type()->get_name())); - string field_name(publicize((*f_iter)->get_name())); - string field_method_prefix("readField"); - int32_t field_id = (*f_iter)->get_key(); - - if (field_id < 0) { - field_method_prefix += "_"; - field_id *= -1; - } - - out << indent() << "func (p *" << tstruct_name << ") " << field_method_prefix << field_id - << "(iprot thrift.TProtocol) error {" << endl; - indent_up(); - generate_deserialize_field(out, *f_iter, false, "p."); - indent_down(); - out << indent() << " return nil" << endl; - out << indent() << "}" << endl << endl; - } -} - -void t_go_generator::generate_go_struct_writer(ofstream& out, - t_struct* tstruct, - const string& tstruct_name, - bool is_result, - bool uses_countsetfields) { - (void)is_result; - string name(tstruct->get_name()); - const vector<t_field*>& fields = tstruct->get_sorted_members(); - vector<t_field*>::const_iterator f_iter; - indent(out) << "func (p *" << tstruct_name << ") " << write_method_name_ << "(oprot thrift.TProtocol) error {" << endl; - indent_up(); - if (tstruct->is_union() && uses_countsetfields) { - std::string tstruct_name(publicize(tstruct->get_name())); - out << indent() << "if c := p.CountSetFields" << tstruct_name << "(); c != 1 {" << endl - << indent() - << " return fmt.Errorf(\"%T write union: exactly one field must be set (%d set).\", p, c)" - << endl << indent() << "}" << endl; - } - out << indent() << "if err := oprot.WriteStructBegin(\"" << name << "\"); err != nil {" << endl; - out << indent() << " return thrift.PrependError(fmt.Sprintf(" - "\"%T write struct begin error: \", p), err) }" << endl; - - string field_name; - string escape_field_name; - // t_const_value* field_default_value; - t_field::e_req field_required; - int32_t field_id = -1; - - for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { - string field_method_prefix("writeField"); - field_name = (*f_iter)->get_name(); - escape_field_name = escape_string(field_name); - field_id = (*f_iter)->get_key(); - - if (field_id < 0) { - field_method_prefix += "_"; - field_id *= -1; - } - - out << indent() << "if err := p." << field_method_prefix << field_id - << "(oprot); err != nil { return err }" << endl; - } - - // Write the struct map - out << indent() << "if err := oprot.WriteFieldStop(); err != nil {" << endl; - out << indent() << " return thrift.PrependError(\"write field stop error: \", err) }" << endl; - out << indent() << "if err := oprot.WriteStructEnd(); err != nil {" << endl; - out << indent() << " return thrift.PrependError(\"write struct stop error: \", err) }" << endl; - out << indent() << "return nil" << endl; - indent_down(); - out << indent() << "}" << endl << endl; - - for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { - string field_method_prefix("writeField"); - field_id = (*f_iter)->get_key(); - field_name = (*f_iter)->get_name(); - escape_field_name = escape_string(field_name); - // field_default_value = (*f_iter)->get_value(); - field_required = (*f_iter)->get_req(); - - if (field_id < 0) { - field_method_prefix += "_"; - field_id *= -1; - } - - out << indent() << "func (p *" << tstruct_name << ") " << field_method_prefix << field_id - << "(oprot thrift.TProtocol) (err error) {" << endl; - indent_up(); - - if (field_required == t_field::T_OPTIONAL) { - out << indent() << "if p.IsSet" << publicize(field_name) << "() {" << endl; - indent_up(); - } - - out << indent() << "if err := oprot.WriteFieldBegin(\"" << escape_field_name << "\", " - << type_to_enum((*f_iter)->get_type()) << ", " << field_id << "); err != nil {" << endl; - out << indent() << " return thrift.PrependError(fmt.Sprintf(\"%T write field begin error " - << field_id << ":" << escape_field_name << ": \", p), err) }" << endl; - - // Write field contents - generate_serialize_field(out, *f_iter, "p."); - - // Write field closer - out << indent() << "if err := oprot.WriteFieldEnd(); err != nil {" << endl; - out << indent() << " return thrift.PrependError(fmt.Sprintf(\"%T write field end error " - << field_id << ":" << escape_field_name << ": \", p), err) }" << endl; - - if (field_required == t_field::T_OPTIONAL) { - indent_down(); - out << indent() << "}" << endl; - } - - indent_down(); - out << indent() << " return err" << endl; - out << indent() << "}" << endl << endl; - } -} - -/** - * Generates a thrift service. - * - * @param tservice The service definition - */ -void t_go_generator::generate_service(t_service* tservice) { - string test_suffix("_test"); - string filename = lowercase(service_name_); - string f_service_name; - - size_t fname_len = filename.length(); - size_t suffix_len = test_suffix.length(); - - if ((fname_len >= suffix_len) - && (filename.compare(fname_len - suffix_len, suffix_len, test_suffix) == 0)) { - f_service_name = package_dir_ + "/" + filename + "_.go"; - } else { - f_service_name = package_dir_ + "/" + filename + ".go"; - } - f_service_.open(f_service_name.c_str()); - f_service_ << go_autogen_comment() << go_package() << render_includes(); - - generate_service_interface(tservice); - generate_service_client(tservice); - generate_service_server(tservice); - generate_service_helpers(tservice); - generate_service_remote(tservice); - // Close service file - f_service_ << endl; - f_service_.close(); - format_go_output(f_service_name); -} - -/** - * Generates helper functions for a service. - * - * @param tservice The service to generate a header definition for - */ -void t_go_generator::generate_service_helpers(t_service* tservice) { - vector<t_function*> functions = tservice->get_functions(); - vector<t_function*>::iterator f_iter; - f_service_ << "// HELPER FUNCTIONS AND STRUCTURES" << endl << endl; - - for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { - t_struct* ts = (*f_iter)->get_arglist(); - generate_go_struct_definition(f_service_, ts, false, false, true); - generate_go_function_helpers(*f_iter); - } -} - -/** - * Generates a struct and helpers for a function. - * - * @param tfunction The function - */ -void t_go_generator::generate_go_function_helpers(t_function* tfunction) { - if (!tfunction->is_oneway()) { - t_struct result(program_, tfunction->get_name() + "_result"); - t_field success(tfunction->get_returntype(), "success", 0); - success.set_req(t_field::T_OPTIONAL); - - 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) { - t_field* f = *f_iter; - f->set_req(t_field::T_OPTIONAL); - result.append(f); - } - - generate_go_struct_definition(f_service_, &result, false, true); - } -} - -/** - * Generates a service interface definition. - * - * @param tservice The service to generate a header definition for - */ -void t_go_generator::generate_service_interface(t_service* tservice) { - string extends = ""; - string extends_if = ""; - string serviceName(publicize(tservice->get_name())); - string interfaceName = serviceName; - - if (tservice->get_extends() != NULL) { - extends = type_name(tservice->get_extends()); - size_t index = extends.rfind("."); - - if (index != string::npos) { - extends_if = "\n" + indent() + " " + extends.substr(0, index + 1) - + publicize(extends.substr(index + 1)) + "\n"; - } else { - extends_if = "\n" + indent() + publicize(extends) + "\n"; - } - } - - f_service_ << indent() << "type " << interfaceName << " interface {" << extends_if; - indent_up(); - generate_go_docstring(f_service_, tservice); - vector<t_function*> functions = tservice->get_functions(); - - if (!functions.empty()) { - f_service_ << endl; - vector<t_function*>::iterator f_iter; - - for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { - generate_go_docstring(f_service_, (*f_iter)); - f_service_ << indent() << function_signature_if(*f_iter, "", true) << endl; - } - } - - indent_down(); - f_service_ << indent() << "}" << endl << endl; -} - -/** - * Generates a service client definition. - * - * @param tservice The service to generate a server for. - */ -void t_go_generator::generate_service_client(t_service* tservice) { - string extends = ""; - string extends_field = ""; - string extends_client = ""; - string extends_client_new = ""; - string serviceName(publicize(tservice->get_name())); - - if (tservice->get_extends() != NULL) { - extends = type_name(tservice->get_extends()); - size_t index = extends.rfind("."); - - if (index != string::npos) { - extends_client = extends.substr(0, index + 1) + publicize(extends.substr(index + 1)) - + "Client"; - extends_client_new = extends.substr(0, index + 1) + "New" - + publicize(extends.substr(index + 1)) + "Client"; - } else { - extends_client = publicize(extends) + "Client"; - extends_client_new = "New" + extends_client; - } - } - - extends_field = extends_client.substr(extends_client.find(".") + 1); - - generate_go_docstring(f_service_, tservice); - f_service_ << indent() << "type " << serviceName << "Client struct {" << endl; - indent_up(); - - if (!extends_client.empty()) { - f_service_ << indent() << "*" << extends_client << endl; - } else { - f_service_ << indent() << "Transport thrift.TTransport" << endl; - f_service_ << indent() << "ProtocolFactory thrift.TProtocolFactory" << endl; - f_service_ << indent() << "InputProtocol thrift.TProtocol" << endl; - f_service_ << indent() << "OutputProtocol thrift.TProtocol" << endl; - f_service_ << indent() << "SeqId int32" << endl; - /*f_service_ << indent() << "reqs map[int32]Deferred" << endl*/; - } - - indent_down(); - f_service_ << indent() << "}" << endl << endl; - // Constructor function - f_service_ << indent() << "func New" << serviceName - << "ClientFactory(t thrift.TTransport, f thrift.TProtocolFactory) *" << serviceName - << "Client {" << endl; - indent_up(); - f_service_ << indent() << "return &" << serviceName << "Client"; - - if (!extends.empty()) { - f_service_ << "{" << extends_field << ": " << extends_client_new << "Factory(t, f)}"; - } else { - indent_up(); - f_service_ << "{Transport: t," << endl; - f_service_ << indent() << "ProtocolFactory: f," << endl; - f_service_ << indent() << "InputProtocol: f.GetProtocol(t)," << endl; - f_service_ << indent() << "OutputProtocol: f.GetProtocol(t)," << endl; - f_service_ << indent() << "SeqId: 0," << endl; - /*f_service_ << indent() << "Reqs: make(map[int32]Deferred)" << endl*/; - indent_down(); - f_service_ << indent() << "}" << endl; - } - - indent_down(); - f_service_ << indent() << "}" << endl << endl; - // Constructor function - f_service_ - << indent() << "func New" << serviceName - << "ClientProtocol(t thrift.TTransport, iprot thrift.TProtocol, oprot thrift.TProtocol) *" - << serviceName << "Client {" << endl; - indent_up(); - f_service_ << indent() << "return &" << serviceName << "Client"; - - if (!extends.empty()) { - f_service_ << "{" << extends_field << ": " << extends_client_new << "Protocol(t, iprot, oprot)}" - << endl; - } else { - indent_up(); - f_service_ << "{Transport: t," << endl; - f_service_ << indent() << "ProtocolFactory: nil," << endl; - f_service_ << indent() << "InputProtocol: iprot," << endl; - f_service_ << indent() << "OutputProtocol: oprot," << endl; - f_service_ << indent() << "SeqId: 0," << endl; - /*f_service_ << indent() << "Reqs: make(map[int32]interface{})" << endl*/; - indent_down(); - f_service_ << indent() << "}" << endl; - } - - indent_down(); - f_service_ << indent() << "}" << endl << 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) { - t_struct* arg_struct = (*f_iter)->get_arglist(); - const vector<t_field*>& fields = arg_struct->get_members(); - vector<t_field*>::const_iterator fld_iter; - string funname = publicize((*f_iter)->get_name()); - // Open function - generate_go_docstring(f_service_, (*f_iter)); - f_service_ << indent() << "func (p *" << serviceName << "Client) " - << function_signature_if(*f_iter, "", true) << " {" << endl; - indent_up(); - /* - f_service_ << - indent() << "p.SeqId += 1" << endl; - if (!(*f_iter)->is_oneway()) { - f_service_ << - indent() << "d := defer.Deferred()" << endl << - indent() << "p.Reqs[p.SeqId] = d" << endl; - } - */ - f_service_ << indent() << "if err = p.send" << funname << "("; - bool first = true; - - for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) { - if (first) { - first = false; - } else { - f_service_ << ", "; - } - - f_service_ << variable_name_to_go_name((*fld_iter)->get_name()); - } - - f_service_ << "); err != nil { return }" << endl; - - if (!(*f_iter)->is_oneway()) { - f_service_ << indent() << "return p.recv" << funname << "()" << endl; - } else { - f_service_ << indent() << "return" << endl; - } - - indent_down(); - f_service_ << indent() << "}" << endl << endl; - f_service_ << indent() << "func (p *" << serviceName << "Client) send" - << function_signature(*f_iter) << "(err error) {" << endl; - indent_up(); - std::string argsname = publicize((*f_iter)->get_name() + "_args", true); - // Serialize the request header - f_service_ << indent() << "oprot := p.OutputProtocol" << endl; - f_service_ << indent() << "if oprot == nil {" << endl; - f_service_ << indent() << " oprot = p.ProtocolFactory.GetProtocol(p.Transport)" << endl; - f_service_ << indent() << " p.OutputProtocol = oprot" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "p.SeqId++" << endl; - f_service_ << indent() << "if err = oprot.WriteMessageBegin(\"" << (*f_iter)->get_name() - << "\", " << ((*f_iter)->is_oneway() ? "thrift.ONEWAY" : "thrift.CALL") - << ", p.SeqId); err != nil {" << endl; - indent_up(); - f_service_ << indent() << " return" << endl; - indent_down(); - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "args := " << argsname << "{" << endl; - - for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) { - f_service_ << indent() << publicize((*fld_iter)->get_name()) << " : " - << variable_name_to_go_name((*fld_iter)->get_name()) << "," << endl; - } - f_service_ << indent() << "}" << endl; - - // Write to the stream - f_service_ << indent() << "if err = args." << write_method_name_ << "(oprot); err != nil {" << endl; - indent_up(); - f_service_ << indent() << " return" << endl; - indent_down(); - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "if err = oprot.WriteMessageEnd(); err != nil {" << endl; - indent_up(); - f_service_ << indent() << " return" << endl; - indent_down(); - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "return oprot.Flush()" << endl; - indent_down(); - f_service_ << indent() << "}" << endl << endl; - - if (!(*f_iter)->is_oneway()) { - std::string resultname = publicize((*f_iter)->get_name() + "_result", true); - // Open function - f_service_ << endl << indent() << "func (p *" << serviceName << "Client) recv" - << publicize((*f_iter)->get_name()) << "() ("; - - if (!(*f_iter)->get_returntype()->is_void()) { - f_service_ << "value " << type_to_go_type((*f_iter)->get_returntype()) << ", "; - } - - f_service_ << "err error) {" << endl; - indent_up(); - // TODO(mcslee): Validate message reply here, seq ids etc. - string error(tmp("error")); - string error2(tmp("error")); - f_service_ << indent() << "iprot := p.InputProtocol" << endl; - f_service_ << indent() << "if iprot == nil {" << endl; - f_service_ << indent() << " iprot = p.ProtocolFactory.GetProtocol(p.Transport)" << endl; - f_service_ << indent() << " p.InputProtocol = iprot" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "method, mTypeId, seqId, err := iprot.ReadMessageBegin()" << endl; - f_service_ << indent() << "if err != nil {" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "if method != \"" << (*f_iter)->get_name() << "\" {" << endl; - f_service_ << indent() << " err = thrift.NewTApplicationException(" - << "thrift.WRONG_METHOD_NAME, \"" << (*f_iter)->get_name() - << " failed: wrong method name\")" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "if p.SeqId != seqId {" << endl; - f_service_ << indent() << " err = thrift.NewTApplicationException(" - << "thrift.BAD_SEQUENCE_ID, \"" << (*f_iter)->get_name() - << " failed: out of sequence response\")" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "if mTypeId == thrift.EXCEPTION {" << endl; - f_service_ << indent() << " " << error - << " := thrift.NewTApplicationException(thrift.UNKNOWN_APPLICATION_EXCEPTION, " - "\"Unknown Exception\")" << endl; - f_service_ << indent() << " var " << error2 << " error" << endl; - f_service_ << indent() << " " << error2 << ", err = " << error << "." << read_method_name_ << "(iprot)" << endl; - f_service_ << indent() << " if err != nil {" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << " }" << endl; - f_service_ << indent() << " if err = iprot.ReadMessageEnd(); err != nil {" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << " }" << endl; - f_service_ << indent() << " err = " << error2 << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "if mTypeId != thrift.REPLY {" << endl; - f_service_ << indent() << " err = thrift.NewTApplicationException(" - << "thrift.INVALID_MESSAGE_TYPE_EXCEPTION, \"" << (*f_iter)->get_name() - << " failed: invalid message type\")" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "result := " << resultname << "{}" << endl; - f_service_ << indent() << "if err = result." << read_method_name_ << "(iprot); err != nil {" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << "}" << endl; - f_service_ << indent() << "if err = iprot.ReadMessageEnd(); err != nil {" << endl; - f_service_ << indent() << " return" << endl; - f_service_ << indent() << "}" << endl; - - 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) { - const std::string pubname = publicize((*x_iter)->get_name()); - - f_service_ << indent() << "if result." << pubname << " != nil {" << endl; - f_service_ << indent() << " err = result." << pubname << endl; - f_service_ << indent() << " return " << endl; - f_service_ << indent() << "}"; - - if ((x_iter + 1) != xceptions.end()) { - f_service_ << " else "; - } else { - f_service_ << endl; - } - } - - // Careful, only return _result if not a void function - if (!(*f_iter)->get_returntype()->is_void()) { - f_service_ << indent() << "value = result.GetSuccess()" << endl; - } - - f_service_ << indent() << "return" << endl; - // Close function - indent_down(); - f_service_ << indent() << "}" << endl << endl; - } - } - - // indent_down(); - f_service_ << endl; -} - -/** - * Generates a command line tool for making remote requests - * - * @param tservice The service to generate a remote for. - */ -void t_go_generator::generate_service_remote(t_service* tservice) { - vector<t_function*> functions = tservice->get_functions(); - t_service* parent = tservice->get_extends(); - - // collect inherited functions - while (parent != NULL) { - vector<t_function*> p_functions = parent->get_functions(); - functions.insert(functions.end(), p_functions.begin(), p_functions.end()); - parent = parent->get_extends(); - } - - vector<t_function*>::iterator f_iter; - string f_remote_name = package_dir_ + "/" + underscore(service_name_) + "-remote/" - + underscore(service_name_) + "-remote.go"; - ofstream f_remote; - f_remote.open(f_remote_name.c_str()); - string service_module = get_real_go_module(program_); - string::size_type loc; - - while ((loc = service_module.find(".")) != string::npos) { - service_module.replace(loc, 1, 1, '/'); - } - if (!gen_package_prefix_.empty()) { - service_module = gen_package_prefix_ + service_module; - } - - f_remote << go_autogen_comment(); - f_remote << indent() << "package main" << endl << endl; - f_remote << indent() << "import (" << endl; - f_remote << indent() << " \"flag\"" << endl; - f_remote << indent() << " \"fmt\"" << endl; - f_remote << indent() << " \"math\"" << endl; - f_remote << indent() << " \"net\"" << endl; - f_remote << indent() << " \"net/url\"" << endl; - f_remote << indent() << " \"os\"" << endl; - f_remote << indent() << " \"strconv\"" << endl; - f_remote << indent() << " \"strings\"" << endl; - f_remote << indent() << " \"" + gen_thrift_import_ + "\"" << endl; - f_remote << indent() << " \"" << service_module << "\"" << endl; - f_remote << indent() << ")" << endl; - f_remote << indent() << endl; - f_remote << indent() << "func Usage() {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"Usage of \", os.Args[0], \" " - "[-h host:port] [-u url] [-f[ramed]] function [arg1 [arg2...]]:\")" - << endl; - f_remote << indent() << " flag.PrintDefaults()" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"\\nFunctions:\")" << endl; - - for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { - f_remote << " fmt.Fprintln(os.Stderr, \" " << (*f_iter)->get_returntype()->get_name() << " " - << (*f_iter)->get_name() << "("; - t_struct* arg_struct = (*f_iter)->get_arglist(); - const std::vector<t_field*>& args = arg_struct->get_members(); - vector<t_field*>::const_iterator a_iter; - std::vector<t_field*>::size_type num_args = args.size(); - bool first = true; - - for (std::vector<t_field*>::size_type i = 0; i < num_args; ++i) { - if (first) { - first = false; - } else { - f_remote << ", "; - } - - f_remote << args[i]->get_type()->get_name() << " " << args[i]->get_name(); - } - - f_remote << ")\")" << endl; - } - - f_remote << indent() << " fmt.Fprintln(os.Stderr)" << endl; - f_remote << indent() << " os.Exit(0)" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << endl; - f_remote << indent() << "func main() {" << endl; - indent_up(); - f_remote << indent() << "flag.Usage = Usage" << endl; - f_remote << indent() << "var host string" << endl; - f_remote << indent() << "var port int" << endl; - f_remote << indent() << "var protocol string" << endl; - f_remote << indent() << "var urlString string" << endl; - f_remote << indent() << "var framed bool" << endl; - f_remote << indent() << "var useHttp bool" << endl; - f_remote << indent() << "var parsedUrl url.URL" << endl; - f_remote << indent() << "var trans thrift.TTransport" << endl; - f_remote << indent() << "_ = strconv.Atoi" << endl; - f_remote << indent() << "_ = math.Abs" << endl; - f_remote << indent() << "flag.Usage = Usage" << endl; - f_remote << indent() << "flag.StringVar(&host, \"h\", \"localhost\", \"Specify host and port\")" - << endl; - f_remote << indent() << "flag.IntVar(&port, \"p\", 9090, \"Specify port\")" << endl; - f_remote << indent() << "flag.StringVar(&protocol, \"P\", \"binary\", \"" - "Specify the protocol (binary, compact, simplejson, json)\")" << endl; - f_remote << indent() << "flag.StringVar(&urlString, \"u\", \"\", \"Specify the url\")" << endl; - f_remote << indent() << "flag.BoolVar(&framed, \"framed\", false, \"Use framed transport\")" - << endl; - f_remote << indent() << "flag.BoolVar(&useHttp, \"http\", false, \"Use http\")" << endl; - f_remote << indent() << "flag.Parse()" << endl; - f_remote << indent() << endl; - f_remote << indent() << "if len(urlString) > 0 {" << endl; - f_remote << indent() << " parsedUrl, err := url.Parse(urlString)" << endl; - f_remote << indent() << " if err != nil {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"Error parsing URL: \", err)" << endl; - f_remote << indent() << " flag.Usage()" << endl; - f_remote << indent() << " }" << endl; - f_remote << indent() << " host = parsedUrl.Host" << endl; - f_remote << indent() << " useHttp = len(parsedUrl.Scheme) <= 0 || parsedUrl.Scheme == \"http\"" - << endl; - f_remote << indent() << "} else if useHttp {" << endl; - f_remote << indent() << " _, err := url.Parse(fmt.Sprint(\"http://\";, host, \":\", port))" - << endl; - f_remote << indent() << " if err != nil {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"Error parsing URL: \", err)" << endl; - f_remote << indent() << " flag.Usage()" << endl; - f_remote << indent() << " }" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << endl; - f_remote << indent() << "cmd := flag.Arg(0)" << endl; - f_remote << indent() << "var err error" << endl; - f_remote << indent() << "if useHttp {" << endl; - f_remote << indent() << " trans, err = thrift.NewTHttpClient(parsedUrl.String())" << endl; - f_remote << indent() << "} else {" << endl; - f_remote << indent() << " portStr := fmt.Sprint(port)" << endl; - f_remote << indent() << " if strings.Contains(host, \":\") {" << endl; - f_remote << indent() << " host, portStr, err = net.SplitHostPort(host)" << endl; - f_remote << indent() << " if err != nil {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"error with host:\", err)" - << endl; - f_remote << indent() << " os.Exit(1)" << endl; - f_remote << indent() << " }" << endl; - f_remote << indent() << " }" << endl; - f_remote << indent() << " trans, err = thrift.NewTSocket(net.JoinHostPort(host, portStr))" - << endl; - f_remote << indent() << " if err != nil {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"error resolving address:\", err)" << endl; - f_remote << indent() << " os.Exit(1)" << endl; - f_remote << indent() << " }" << endl; - f_remote << indent() << " if framed {" << endl; - f_remote << indent() << " trans = thrift.NewTFramedTransport(trans)" << endl; - f_remote << indent() << " }" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << "if err != nil {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"Error creating transport\", err)" << endl; - f_remote << indent() << " os.Exit(1)" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << "defer trans.Close()" << endl; - f_remote << indent() << "var protocolFactory thrift.TProtocolFactory" << endl; - f_remote << indent() << "switch protocol {" << endl; - f_remote << indent() << "case \"compact\":" << endl; - f_remote << indent() << " protocolFactory = thrift.NewTCompactProtocolFactory()" << endl; - f_remote << indent() << " break" << endl; - f_remote << indent() << "case \"simplejson\":" << endl; - f_remote << indent() << " protocolFactory = thrift.NewTSimpleJSONProtocolFactory()" << endl; - f_remote << indent() << " break" << endl; - f_remote << indent() << "case \"json\":" << endl; - f_remote << indent() << " protocolFactory = thrift.NewTJSONProtocolFactory()" << endl; - f_remote << indent() << " break" << endl; - f_remote << indent() << "case \"binary\", \"\":" << endl; - f_remote << indent() << " protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()" << endl; - f_remote << indent() << " break" << endl; - f_remote << indent() << "default:" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"Invalid protocol specified: \", protocol)" - << endl; - f_remote << indent() << " Usage()" << endl; - f_remote << indent() << " os.Exit(1)" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << "client := " << package_name_ << ".New" << publicize(service_name_) - << "ClientFactory(trans, protocolFactory)" << endl; - f_remote << indent() << "if err := trans.Open(); err != nil {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"Error opening socket to \", " - "host, \":\", port, \" \", err)" << endl; - f_remote << indent() << " os.Exit(1)" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << endl; - f_remote << indent() << "switch cmd {" << endl; - - for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { - t_struct* arg_struct = (*f_iter)->get_arglist(); - const std::vector<t_field*>& args = arg_struct->get_members(); - vector<t_field*>::const_iterator a_iter; - std::vector<t_field*>::size_type num_args = args.size(); - string funcName((*f_iter)->get_name()); - string pubName(publicize(funcName)); - string argumentsName(publicize(funcName + "_args", true)); - f_remote << indent() << "case \"" << escape_string(funcName) << "\":" << endl; - indent_up(); - f_remote << indent() << "if flag.NArg() - 1 != " << num_args << " {" << endl; - f_remote << indent() << " fmt.Fprintln(os.Stderr, \"" << escape_string(pubName) << " requires " - << num_args << " args\")" << endl; - f_remote << indent() << " flag.Usage()" << endl; - f_remote << indent() << "}" << endl; - - for (std::vector<t_field*>::size_type i = 0; i < num_args; ++i) { - int flagArg = i + 1; - t_type* the_type(args[i]->get_type()); - t_type* the_type2(get_true_type(the_type)); - - if (the_type2->is_enum()) { - f_remote << indent() << "tmp" << i << ", err := (strconv.Atoi(flag.Arg(" << flagArg << ")))" - << endl; - f_remote << indent() << "if err != nil {" << endl; - f_remote << indent() << " Usage()" << endl; - f_remote << indent() << " return" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << "argvalue" << i << " := " << package_name_ << "." - << publicize(the_type->get_name()) << "(tmp" << i << ")" << endl; - } else if (the_type2->is_base_type()) { - t_base_type::t_base e = ((t_base_type*)the_type2)->get_base(); - string err(tmp("err")); - - switch (e) { - case t_base_type::TYPE_VOID: - break; - - case t_base_type::TYPE_STRING: - if (((t_base_type*)the_type2)->is_binary()) { - f_remote << indent() << "argvalue" << i << " := []byte(flag.Arg(" << flagArg << "))" - << endl; - } else { - f_remote << indent() << "argvalue" << i << " := flag.Arg(" << flagArg << ")" << endl; - } - break; - - case t_base_type::TYPE_BOOL: - f_remote << indent() << "argvalue" << i << " := flag.Arg(" << flagArg << ") == \"true\"" - << endl; - break; - - case t_base_type::TYPE_BYTE: - f_remote << indent() << "tmp" << i << ", " << err << " := (strconv.Atoi(flag.Arg(" - << flagArg << ")))" << endl; - f_remote << indent() << "if " << err << " != nil {" << endl; - f_remote << indent() << " Usage()" << endl; - f_remote << indent() << " return" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << "argvalue" << i << " := byte(tmp" << i << ")" << endl; - break; - - case t_base_type::TYPE_I16: - f_remote << indent() << "tmp" << i << ", " << err << " := (strconv.Atoi(flag.Arg(" - << flagArg << ")))" << endl; - f_remote << indent() << "if " << err << " != nil {" << endl; - f_remote << indent() << " Usage()" << endl; - f_remote << indent() << " return" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << "argvalue" << i << " := byte(tmp" << i << ")" << endl; - break; - - case t_base_type::TYPE_I32: - f_remote << indent() << "tmp" << i << ", " << err << " := (strconv.Atoi(flag.Arg(" - << flagArg << ")))" << endl; - f_remote << indent() << "if " << err << " != nil {" << endl; - f_remote << indent() << " Usage()" << endl; - f_remote << indent() << " return" << endl; - f_remote << indent() << "}" << endl; - f_remote << indent() << "argvalue" << i << " := int32(tmp" << i << ")" << endl; - break; - - case t_base_type::TYPE_I64: - f_remote << indent() << "argvalue" << i << ", " << err - << " := (strconv.ParseInt(flag.Arg(" << flagArg << "), 10, 64))" << endl; - f_remote << indent() << "if " << err << " != nil {" << endl; - f_remote << indent() << " Usage()" << endl; - f_remote << indent() << " return" << endl; - f_remote << indent() << "}" << endl; - break; - - case t_base_type::TYPE_DOUBLE: - f_remote << indent() << "argvalue" << i << ", " << err - << " := (strconv.ParseFloat(flag.Arg(" << flagArg << "), 64))" << endl; - f_remote << indent() << "if " << err << " != nil {" << endl; - f_remote << indent() << " Usage()" << endl; - f_remote << indent() << " return" << endl; - f_remote << indent() << "}" << endl; - break; - - default: - throw("Invalid base type in generate_service_remote"); - } - - // f_remote << publicize(args[i]->get_name()) << "(strconv.Atoi(flag.Arg(" << flagArg << - // ")))"; - } else if (the_type2->is_struct()) { - string arg(tmp("arg")); - string mbTrans(tmp("mbTrans")); - string err1(tmp("err")); - string factory(tmp("factory")); - string jsProt(tmp("jsProt")); - string err2(tmp("err")); - std::string tstruct_name(publicize(the_type->get_name())); - f_remote << indent() << arg << " := flag.Arg(" << flagArg << ")" << endl; - f_remote << indent() << mbTrans << " := thrift.NewTMemoryBufferLen(len(" << arg << "))" - << endl; - f_remote << indent() <
<TRUNCATED>
