THRIFT-3299 Create an Apache Thrift language binding for Dart (dartlang.org). Client: Dart Patch: Mark Erickson <[email protected]>
This closes #608 Project: http://git-wip-us.apache.org/repos/asf/thrift/repo Commit: http://git-wip-us.apache.org/repos/asf/thrift/commit/932c4700 Tree: http://git-wip-us.apache.org/repos/asf/thrift/tree/932c4700 Diff: http://git-wip-us.apache.org/repos/asf/thrift/diff/932c4700 Branch: refs/heads/master Commit: 932c4700c6e3aee20b74d5e2f562326029e6b9c8 Parents: 123258b Author: Mark Erickson <[email protected]> Authored: Sat Aug 29 10:46:51 2015 -0500 Committer: Jens Geyer <[email protected]> Committed: Sat Oct 3 01:43:59 2015 +0200 ---------------------------------------------------------------------- .gitignore | 12 + compiler/cpp/CMakeLists.txt | 3 +- compiler/cpp/Makefile.am | 1 + compiler/cpp/src/generate/t_dart_generator.cc | 2361 ++++++++++++++++++ configure.ac | 23 + lib/Makefile.am | 5 + lib/dart/LICENSE_HEADER | 16 + lib/dart/Makefile.am | 26 + lib/dart/README.md | 26 + lib/dart/coding_standards.md | 6 + lib/dart/lib/src/browser/t_web_socket.dart | 130 + lib/dart/lib/src/console/t_tcp_socket.dart | 81 + lib/dart/lib/src/console/t_web_socket.dart | 89 + .../lib/src/protocol/t_binary_protocol.dart | 276 ++ lib/dart/lib/src/protocol/t_field.dart | 26 + lib/dart/lib/src/protocol/t_json_protocol.dart | 754 ++++++ lib/dart/lib/src/protocol/t_list.dart | 25 + lib/dart/lib/src/protocol/t_map.dart | 26 + lib/dart/lib/src/protocol/t_message.dart | 35 + .../src/protocol/t_multiplexed_protocol.dart | 43 + lib/dart/lib/src/protocol/t_protocol.dart | 95 + .../lib/src/protocol/t_protocol_decorator.dart | 150 ++ lib/dart/lib/src/protocol/t_protocol_error.dart | 33 + .../lib/src/protocol/t_protocol_factory.dart | 22 + lib/dart/lib/src/protocol/t_protocol_util.dart | 107 + lib/dart/lib/src/protocol/t_set.dart | 25 + lib/dart/lib/src/protocol/t_struct.dart | 24 + lib/dart/lib/src/protocol/t_type.dart | 34 + lib/dart/lib/src/t_application_error.dart | 104 + lib/dart/lib/src/t_base.dart | 37 + lib/dart/lib/src/t_error.dart | 27 + lib/dart/lib/src/t_processor.dart | 24 + .../lib/src/transport/t_buffered_transport.dart | 98 + .../lib/src/transport/t_framed_transport.dart | 83 + .../lib/src/transport/t_http_transport.dart | 100 + .../lib/src/transport/t_message_reader.dart | 99 + lib/dart/lib/src/transport/t_socket.dart | 38 + .../lib/src/transport/t_socket_transport.dart | 175 ++ lib/dart/lib/src/transport/t_transport.dart | 70 + .../lib/src/transport/t_transport_error.dart | 31 + .../lib/src/transport/t_transport_factory.dart | 27 + lib/dart/lib/thrift.dart | 58 + lib/dart/lib/thrift_browser.dart | 22 + lib/dart/lib/thrift_console.dart | 23 + lib/dart/pubspec.yaml | 36 + lib/dart/test/protocol/t_protocol_test.dart | 374 +++ lib/dart/test/t_application_error_test.dart | 46 + .../test/transport/t_http_transport_test.dart | 165 ++ .../test/transport/t_socket_transport_test.dart | 312 +++ lib/dart/test/transport/t_transport_test.dart | 41 + lib/dart/tool/dev.dart | 33 + test/Makefile.am | 5 + test/dart/Makefile.am | 41 + test/dart/test_client/bin/main.dart | 288 +++ test/dart/test_client/pubspec.yaml | 32 + test/tests.json | 22 + tutorial/Makefile.am | 4 + tutorial/dart/Makefile.am | 56 + tutorial/dart/build.sh | 56 + tutorial/dart/client/pubspec.yaml | 34 + tutorial/dart/client/web/client.dart | 278 +++ tutorial/dart/client/web/index.html | 36 + tutorial/dart/client/web/styles.css | 33 + tutorial/dart/console_client/bin/main.dart | 149 ++ tutorial/dart/console_client/pubspec.yaml | 34 + tutorial/dart/server/bin/main.dart | 163 ++ tutorial/dart/server/pubspec.yaml | 32 + tutorial/shared.thrift | 1 + tutorial/tutorial.thrift | 1 + 69 files changed, 7741 insertions(+), 1 deletion(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/thrift/blob/932c4700/.gitignore ---------------------------------------------------------------------- diff --git a/.gitignore b/.gitignore index e0c7a26..44e630a 100644 --- a/.gitignore +++ b/.gitignore @@ -145,6 +145,10 @@ test-driver /lib/d/test/serialization_benchmark /lib/d/test/transport_test /lib/d/unittest/ +/lib/dart/**/.packages +/lib/dart/**/packages +/lib/dart/**/.pub/ +/lib/dart/**/pubspec.lock /lib/delphi/src/*.dcu /lib/delphi/test/*.identcache /lib/delphi/test/*.local @@ -235,6 +239,10 @@ test-driver /test/cpp/StressTestNonBlocking /test/cpp/TestClient /test/cpp/TestServer +/test/dart/**/.packages +/test/dart/**/packages +/test/dart/**/.pub/ +/test/dart/**/pubspec.lock /test/log/ /test/test.log /test/erl/.eunit/ @@ -260,6 +268,10 @@ test-driver /tutorial/csharp/CsharpServer/bin /tutorial/csharp/CsharpClient/obj /tutorial/csharp/CsharpClient/bin +/tutorial/dart/**/.packages +/tutorial/dart/**/packages +/tutorial/dart/**/.pub/ +/tutorial/dart/**/pubspec.lock /tutorial/delphi/*.dsk /tutorial/delphi/*.local /tutorial/delphi/*.tvsconfig http://git-wip-us.apache.org/repos/asf/thrift/blob/932c4700/compiler/cpp/CMakeLists.txt ---------------------------------------------------------------------- diff --git a/compiler/cpp/CMakeLists.txt b/compiler/cpp/CMakeLists.txt index bc6591c..2d0c3f0 100644 --- a/compiler/cpp/CMakeLists.txt +++ b/compiler/cpp/CMakeLists.txt @@ -47,7 +47,7 @@ set(libparse_SOURCES add_library(libparse STATIC ${libparse_SOURCES}) # Create the thrift compiler -set( thrift_SOURCES +set( thrift_SOURCES src/main.cc src/md5.c src/generate/t_generator.cc @@ -100,6 +100,7 @@ THRIFT_ADD_COMPILER(c_glib "Enable compiler for C with Glib" ON) THRIFT_ADD_COMPILER(cpp "Enable compiler for C++" ON) THRIFT_ADD_COMPILER(java "Enable compiler for Java" ON) THRIFT_ADD_COMPILER(as3 "Enable compiler for ActionScript 3" ON) +THRIFT_ADD_COMPILER(dart "Enable compiler for Dart" ON) THRIFT_ADD_COMPILER(haxe "Enable compiler for Haxe" ON) THRIFT_ADD_COMPILER(csharp "Enable compiler for C#" ON) THRIFT_ADD_COMPILER(py "Enable compiler for Python 2.0" ON) http://git-wip-us.apache.org/repos/asf/thrift/blob/932c4700/compiler/cpp/Makefile.am ---------------------------------------------------------------------- diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am index 38f9f9d..2aa6913 100644 --- a/compiler/cpp/Makefile.am +++ b/compiler/cpp/Makefile.am @@ -74,6 +74,7 @@ thrift_SOURCES += src/generate/t_c_glib_generator.cc \ src/generate/t_java_generator.cc \ src/generate/t_json_generator.cc \ src/generate/t_as3_generator.cc \ + src/generate/t_dart_generator.cc \ src/generate/t_haxe_generator.cc \ src/generate/t_csharp_generator.cc \ src/generate/t_py_generator.cc \ http://git-wip-us.apache.org/repos/asf/thrift/blob/932c4700/compiler/cpp/src/generate/t_dart_generator.cc ---------------------------------------------------------------------- diff --git a/compiler/cpp/src/generate/t_dart_generator.cc b/compiler/cpp/src/generate/t_dart_generator.cc new file mode 100644 index 0000000..147ca13 --- /dev/null +++ b/compiler/cpp/src/generate/t_dart_generator.cc @@ -0,0 +1,2361 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +#include <sstream> +#include <string> +#include <fstream> +#include <iostream> +#include <vector> +#include <cctype> + +#include <sys/stat.h> +#include <stdexcept> + +#include "platform.h" +#include "t_oop_generator.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 +static const string endl2 = "\n\n"; + +/** + * Use the current Thrift version for static libraries. When releasing, update + * the version in these files. + * - lib/dart/pubspec.yaml + * - test/dart/test_client/pubspec.yaml + * - tutorial/dart/client/pubspec.yaml + * - tutorial/dart/console_client/pubspec.yaml + * - tutorial/dart/server/pubspec.yaml + * See https://thrift.apache.org/docs/committers/HowToVersion + */ +static const string dart_thrift_version = THRIFT_VERSION; + +/* forward declarations */ +string initial_caps_to_underscores(string name); + +/** + * Dart code generator + * + */ +class t_dart_generator : public t_oop_generator { +public: + t_dart_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("library_name"); + if (iter != parsed_options.end()) { + library_name_ = (iter->second); + } else { + library_name_ = ""; + } + + out_dir_base_ = "gen-dart"; + } + + void scope_up(std::ostream& out, std::string prefix=" ") { + out << prefix << "{" << endl; + indent_up(); + } + + void scope_down(std::ostream& out, std::string postfix=endl) { + indent_down(); + indent(out) << "}" << postfix; + } + + string replace_all(string contents, string search, string repl) { + string str(contents); + + size_t slen = search.length(); + size_t rlen = repl.length(); + size_t incr = (rlen > 0) ? rlen : 1; + + if (slen > 0) { + size_t found = str.find(search); + while ((found != string::npos) && (found < str.length())) { + str.replace(found, slen, repl); + found = str.find(search, found + incr); + } + } + + return str; + } + + + /** + * Init and close methods + */ + + void init_generator(); + void close_generator(); + + void export_class_to_library(string file_name, string class_name); + + void generate_dart_library(); + void generate_dart_pubspec(); + + void generate_consts(std::vector<t_const*> consts); + + /** + * Program-level generation functions + */ + + void generate_typedef(t_typedef* ttypedef); + void generate_enum(t_enum* tenum); + void generate_struct(t_struct* tstruct); + void generate_xception(t_struct* txception); + void generate_service(t_service* tservice); + + void print_const_value(std::ofstream& out, + std::string name, + t_type* type, + t_const_value* value, + bool in_static, + bool defval = false); + std::string render_const_value(ofstream& out, + std::string name, + t_type* type, + t_const_value* value); + + /** + * Service-level generation functions + */ + + void generate_dart_struct(t_struct* tstruct, bool is_exception); + + void generate_dart_struct_definition(std::ofstream& out, + t_struct* tstruct, + bool is_xception = false, + bool is_result = false, + string export_file_name = ""); + void generate_dart_struct_reader(std::ofstream& out, t_struct* tstruct); + void generate_dart_validator(std::ofstream& out, t_struct* tstruct); + void generate_dart_struct_result_writer(std::ofstream& out, t_struct* tstruct); + void generate_dart_struct_writer(std::ofstream& out, t_struct* tstruct); + void generate_dart_struct_tostring(std::ofstream& out, t_struct* tstruct); + std::string get_dart_type_string(t_type* type); + void generate_generic_field_getters(std::ofstream& out, t_struct* tstruct); + void generate_generic_field_setters(std::ofstream& out, t_struct* tstruct); + void generate_generic_isset_method(std::ofstream& out, t_struct* tstruct); + void generate_dart_bean_boilerplate(std::ofstream& out, t_struct* tstruct); + + void generate_function_helpers(t_function* tfunction); + std::string get_cap_name(std::string name); + std::string get_field_name(std::string name); + std::string get_args_class_name(std::string name); + std::string get_result_class_name(std::string name); + std::string get_file_name(std::string name); + std::string generate_isset_check(t_field* field); + std::string generate_isset_check(std::string field); + void generate_isset_set(ofstream& out, t_field* field); + + void generate_service_interface(t_service* tservice); + void generate_service_helpers(t_service* tservice); + void generate_service_client(t_service* tservice); + void generate_service_server(t_service* tservice); + void generate_process_function(t_service* tservice, t_function* tfunction); + + /** + * Serialization constructs + */ + + void generate_deserialize_field(std::ofstream& out, t_field* tfield, std::string prefix = ""); + + void generate_deserialize_struct(std::ofstream& out, t_struct* tstruct, std::string prefix = ""); + + void generate_deserialize_container(std::ofstream& out, t_type* ttype, std::string prefix = ""); + + void generate_deserialize_set_element(std::ofstream& out, t_set* tset, std::string prefix = ""); + + void generate_deserialize_map_element(std::ofstream& out, t_map* tmap, std::string prefix = ""); + + void generate_deserialize_list_element(std::ofstream& out, + t_list* tlist, + std::string prefix = ""); + + void generate_serialize_field(std::ofstream& out, t_field* tfield, std::string prefix = ""); + + void generate_serialize_struct(std::ofstream& out, t_struct* tstruct, std::string prefix = ""); + + void generate_serialize_container(std::ofstream& out, t_type* ttype, std::string prefix = ""); + + void generate_serialize_map_element(std::ofstream& out, + t_map* tmap, + std::string iter, + std::string map); + + void generate_serialize_set_element(std::ofstream& out, t_set* tmap, std::string iter); + + void generate_serialize_list_element(std::ofstream& out, t_list* tlist, std::string iter); + + void generate_dart_doc(std::ofstream& out, t_doc* tdoc); + + void generate_dart_doc(std::ofstream& out, t_function* tdoc); + + /** + * Helper rendering functions + */ + + std::string dart_library(string file_name); + std::string service_imports(); + std::string dart_thrift_imports(); + std::string type_name(t_type* ttype); + std::string base_type_name(t_base_type* tbase); + std::string declare_field(t_field* tfield, bool init = false); + std::string function_signature(t_function* tfunction); + std::string argument_list(t_struct* tstruct); + std::string type_to_enum(t_type* ttype); + std::string get_enum_class_name(t_type* type); + + bool type_can_be_null(t_type* ttype) { + ttype = get_true_type(ttype); + + return ttype->is_container() || ttype->is_struct() || ttype->is_xception() + || ttype->is_string(); + } + + std::string constant_name(std::string name); + +private: + std::ofstream f_service_; + + std::string library_name_; + + std::string base_dir_; + std::string src_dir_; + std::string library_exports_; +}; + +/** + * Prepares for file generation by opening up the necessary file output + * streams. + * + * @param tprogram The program to generate + */ +void t_dart_generator::init_generator() { + MKDIR(get_out_dir().c_str()); + + if (library_name_.empty()) { + library_name_ = program_->get_namespace("dart"); + } + if (library_name_.empty()) { + library_name_ = program_->get_name(); + } + library_name_ = replace_all(library_name_, ".", "_"); + + string subdir = get_out_dir() + "/" + library_name_; + MKDIR(subdir.c_str()); + + base_dir_ = subdir; + subdir += "/lib"; + MKDIR(subdir.c_str()); + + subdir += "/src"; + MKDIR(subdir.c_str()); + src_dir_ = subdir; +} + +/** + * The Dart library + * + * @return String of the library, e.g. "library myservice;" + */ +string t_dart_generator::dart_library(string file_name) { + string out = "library "; + if (!library_name_.empty()) { + out += library_name_; + } + if (!file_name.empty()) { + out += ".src." + file_name; + } + return out + ";\n"; +} + +/** + * Prints imports for services + * + * @return List of imports for services + */ +string t_dart_generator::service_imports() { + return "import 'dart:async';" + endl; +} + +/** + * Prints standard dart imports + * + * @return List of imports necessary for thrift + */ +string t_dart_generator::dart_thrift_imports() { + string imports = "import 'dart:typed_data' show Uint8List;" + endl + + "import 'package:thrift/thrift.dart';" + endl + + "import 'package:" + library_name_ + "/" + library_name_ + ".dart';" + endl; + + // add imports for included thrift files + const vector<t_program*>& includes = program_->get_includes(); + for (size_t i = 0; i < includes.size(); ++i) { + string include_name = includes[i]->get_namespace("dart"); + imports += "import 'package:" + include_name + "/" + include_name + ".dart';" + endl; + } + + return imports; +} + +/** + * Not used + */ +void t_dart_generator::close_generator() { + generate_dart_library(); + generate_dart_pubspec(); +} + +void t_dart_generator::generate_dart_library() { + string f_library_name = base_dir_ + "/lib/" + library_name_ + ".dart"; + ofstream f_library; + f_library.open(f_library_name.c_str()); + + f_library << autogen_comment() << endl; + f_library << "library " << library_name_ << ";" << endl2; + f_library << library_exports_; + + f_library.close(); +} + +void t_dart_generator::export_class_to_library(string file_name, string class_name) { + library_exports_ += "export 'src/" + file_name + ".dart' show " + class_name + ";" + endl; +} + +void t_dart_generator::generate_dart_pubspec() { + string f_pubspec_name = base_dir_ + "/pubspec.yaml"; + ofstream f_pubspec; + f_pubspec.open(f_pubspec_name.c_str()); + + indent(f_pubspec) << "name: " << library_name_ << endl; + indent(f_pubspec) << "version: 0.0.1" << endl; + indent(f_pubspec) << "description: Autogenerated by Thrift Compiler" << endl; + f_pubspec << endl; + + indent(f_pubspec) << "environment:" << endl; + indent_up(); + indent(f_pubspec) << "sdk: ^1.12.0" << endl; + indent_down(); + f_pubspec << endl; + + indent(f_pubspec) << "dependencies:" << endl; + indent_up(); + indent(f_pubspec) << "thrift: # ^" << dart_thrift_version << endl; + indent_up(); + indent(f_pubspec) << "path: ../../../../lib/dart" << endl; + indent_down(); + + // add included thrift files as dependencies + const vector<t_program*>& includes = program_->get_includes(); + for (size_t i = 0; i < includes.size(); ++i) { + string include_name = includes[i]->get_namespace("dart"); + indent(f_pubspec) << include_name << ":" << endl; + indent_up(); + indent(f_pubspec) << "path: ../" << include_name << endl; + indent_down(); + } + + indent_down(); + f_pubspec << endl; + + f_pubspec.close(); +} + +/** + * Not used + * + * @param ttypedef The type definition + */ +void t_dart_generator::generate_typedef(t_typedef* ttypedef) { + (void)ttypedef; +} + +/** + * Enums are a class with a set of static constants. + * + * @param tenum The enumeration + */ +void t_dart_generator::generate_enum(t_enum* tenum) { + // Make output file + string file_name = get_file_name(tenum->get_name()); + + string f_enum_name = src_dir_ + "/" + file_name + ".dart"; + ofstream f_enum; + f_enum.open(f_enum_name.c_str()); + + // Comment and add library + f_enum << autogen_comment() << dart_library(file_name) << endl; + + string class_name = tenum->get_name(); + export_class_to_library(file_name, class_name); + f_enum << "class " << class_name; + scope_up(f_enum); + + vector<t_enum_value*> constants = tenum->get_constants(); + vector<t_enum_value*>::iterator c_iter; + for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) { + int value = (*c_iter)->get_value(); + indent(f_enum) << "static const int " << (*c_iter)->get_name() << " = " << value << ";" + << endl; + } + + // Create a static Set with all valid values for this enum + f_enum << endl; + + indent(f_enum) << "static final Set<int> VALID_VALUES = new Set.from([" << endl; + indent_up(); + bool firstValue = true; + for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) { + // populate set + indent(f_enum) << (firstValue ? "" : ", "); + f_enum << (*c_iter)->get_name() << endl; + firstValue = false; + } + indent_down(); + indent(f_enum) << "]);" << endl; + + indent(f_enum) << "static final Map<int, String> VALUES_TO_NAMES = {" << endl; + indent_up(); + firstValue = true; + for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) { + indent(f_enum) << (firstValue ? "" : ", "); + f_enum << (*c_iter)->get_name() << ": '" << (*c_iter)->get_name() << "'" << endl; + firstValue = false; + } + indent_down(); + indent(f_enum) << "};" << endl; + + scope_down(f_enum); // end class + + f_enum.close(); +} + +/** + * Generates a class that holds all the constants. + */ +void t_dart_generator::generate_consts(std::vector<t_const*> consts) { + if (consts.empty()) { + return; + } + + string class_name = get_cap_name(program_name_) + "Constants"; + string file_name = get_file_name(class_name); + + string f_consts_name = src_dir_ + "/" + file_name + ".dart"; + ofstream f_consts; + f_consts.open(f_consts_name.c_str()); + + // Print header + f_consts << autogen_comment() << dart_library(file_name) << endl; + + export_class_to_library(file_name, class_name); + indent(f_consts) << "class " << class_name; + scope_up(f_consts); + + vector<t_const*>::iterator c_iter; + for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) { + print_const_value(f_consts, + (*c_iter)->get_name(), + (*c_iter)->get_type(), + (*c_iter)->get_value(), + false); + f_consts << endl; + } + + scope_down(f_consts); + + f_consts.close(); +} + +void t_dart_generator::print_const_value(std::ofstream& out, + string name, + t_type* type, + t_const_value* value, + bool in_static, + bool defval) { + type = get_true_type(type); + + indent(out); + if (!defval) { + out << (in_static ? "var " : "static final "); + } + if (type->is_base_type()) { + if (!defval) { + out << type_name(type) << " "; + } + string v2 = render_const_value(out, name, type, value); + out << name; + out << " = " << v2 << ";" << endl << endl; + } else if (type->is_enum()) { + if (!defval) { + out << type_name(type) << " "; + } + out << name; + out << " = " << 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; + out << type_name(type) << " " << name << " = new " << type_name(type) << "();" + << endl; + 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(); + } + string val = render_const_value(out, name, field_type, v_iter->second); + indent(out) << name << "."; + out << v_iter->first->get_string() << " = " << val << ";" << endl; + } + out << endl; + } else if (type->is_map()) { + if (!defval) { + out << type_name(type) << " "; + } + out << name << " ="; + scope_up(out); + + 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) << key << ": " << val << "," << endl; + } + scope_down(out, ";" + endl); + + out << endl; + } else if (type->is_list() || type->is_set()) { + if (!defval) { + out << type_name(type) << " "; + } + out << name << " = "; + t_type* etype; + if (type->is_list()) { + out << "[" << endl; + etype = ((t_list*)type)->get_elem_type(); + } else { + out << "new " << type_name(type) << ".from([" << endl; + etype = ((t_set*)type)->get_elem_type(); + } + const vector<t_const_value*>& val = value->get_list(); + vector<t_const_value*>::const_iterator v_iter; + + indent_up(); + for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { + string val = render_const_value(out, name, etype, *v_iter); + indent(out) << val << "," << endl; + } + indent_down(); + + if (type->is_list()) { + indent(out) << "];" << endl; + } else { + indent(out) << "]);" << endl; + } + + } else { + throw "compiler error: no const of type " + type->get_name(); + } +} + +string t_dart_generator::render_const_value(ofstream& out, + string name, + t_type* type, + t_const_value* value) { + (void)name; + type = get_true_type(type); + 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: + case t_base_type::TYPE_I64: + render << value->get_integer(); + 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 << value->get_integer(); + } else { + string t = tmp("tmp"); + print_const_value(out, t, type, value, true); + out << endl; + render << t; + } + + return render.str(); +} + +/** + * Generates a struct definition for a thrift data type. This is a class + * with data members, read(), write(), and an inner Isset class. + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_struct(t_struct* tstruct) { + generate_dart_struct(tstruct, false); +} + +/** + * Exceptions are structs, but they inherit from Exception + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_xception(t_struct* txception) { + generate_dart_struct(txception, true); +} + +/** + * Dart struct definition. + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_dart_struct(t_struct* tstruct, bool is_exception) { + string file_name = get_file_name(tstruct->get_name()); + string f_struct_name = src_dir_ + "/" + file_name + ".dart"; + ofstream f_struct; + f_struct.open(f_struct_name.c_str()); + + f_struct << autogen_comment() << dart_library(file_name) << endl; + + string imports; + + f_struct << dart_thrift_imports() << endl; + + generate_dart_struct_definition(f_struct, tstruct, is_exception, false, file_name); + + f_struct.close(); +} + +/** + * Dart struct definition. This has various parameters, as it could be + * generated standalone or inside another class as a helper. If it + * is a helper than it is a static class. + * + * @param tstruct The struct definition + * @param is_exception Is this an exception? + * @param in_class If inside a class, needs to be static class + * @param is_result If this is a result it needs a different writer + */ +void t_dart_generator::generate_dart_struct_definition(ofstream& out, + t_struct* tstruct, + bool is_exception, + bool is_result, + string export_file_name) { + generate_dart_doc(out, tstruct); + + string class_name = tstruct->get_name(); + if (!export_file_name.empty()) { + export_class_to_library(export_file_name, class_name); + } + indent(out) << "class " << class_name << " "; + + if (is_exception) { + out << "extends Error "; + } + out << "implements TBase"; + scope_up(out); + + indent(out) << "static final TStruct _STRUCT_DESC = new TStruct(\"" << class_name + << "\");" << endl; + + // Members are public for -dart, private for -dartbean + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + indent(out) << "static final TField _" << constant_name((*m_iter)->get_name()) + << "_FIELD_DESC = new TField(\"" << (*m_iter)->get_name() << "\", " + << type_to_enum((*m_iter)->get_type()) << ", " << (*m_iter)->get_key() << ");" + << endl; + } + + out << endl; + + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + generate_dart_doc(out, *m_iter); + indent(out) << type_name((*m_iter)->get_type()) + " _" + << get_field_name((*m_iter)->get_name()) << ";" << endl; + + indent(out) << "static const int " << upcase_string((*m_iter)->get_name()) + << " = " << (*m_iter)->get_key() << ";" << endl; + } + + out << endl; + + // Inner Isset class + if (members.size() > 0) { + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + if (!type_can_be_null((*m_iter)->get_type())) { + string field_name = get_field_name((*m_iter)->get_name()); + indent(out) << "bool __isset_" << field_name << " = false;" << endl; + } + } + } + + out << endl; + + // Default constructor + indent(out) << tstruct->get_name() << "()"; + scope_up(out); + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_type* t = get_true_type((*m_iter)->get_type()); + if ((*m_iter)->get_value() != NULL) { + print_const_value(out, + "this." + (*m_iter)->get_name(), + t, + (*m_iter)->get_value(), + true, + true); + } + } + scope_down(out); + out << endl; + + generate_dart_bean_boilerplate(out, tstruct); + generate_generic_field_getters(out, tstruct); + generate_generic_field_setters(out, tstruct); + generate_generic_isset_method(out, tstruct); + + generate_dart_struct_reader(out, tstruct); + if (is_result) { + generate_dart_struct_result_writer(out, tstruct); + } else { + generate_dart_struct_writer(out, tstruct); + } + generate_dart_struct_tostring(out, tstruct); + generate_dart_validator(out, tstruct); + scope_down(out); + out << endl; +} + +/** + * Generates a function to read all the fields of the struct. + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_dart_struct_reader(ofstream& out, t_struct* tstruct) { + indent(out) << "read(TProtocol iprot)"; + scope_up(out); + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + // Declare stack tmp variables and read struct header + indent(out) << "TField field;" << endl; + indent(out) << "iprot.readStructBegin();" << endl; + + // Loop over reading in fields + indent(out) << "while (true)"; + scope_up(out); + + // Read beginning field marker + indent(out) << "field = iprot.readFieldBegin();" << endl; + + // Check for field STOP marker and break + indent(out) << "if (field.type == TType.STOP)"; + scope_up(out); + indent(out) << "break;" << endl; + scope_down(out); + + // Switch statement on the field we are reading + indent(out) << "switch (field.id)"; + scope_up(out); + + // Generate deserialization code for known cases + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + indent(out) << "case " << upcase_string((*f_iter)->get_name()) << ":" << endl; + indent_up(); + + indent(out) << "if (field.type == " << type_to_enum((*f_iter)->get_type()) << ")"; + scope_up(out); + + generate_deserialize_field(out, *f_iter, "this."); + generate_isset_set(out, *f_iter); + + scope_down(out, " else"); + scope_up(out); + indent(out) << "TProtocolUtil.skip(iprot, field.type);" << endl; + scope_down(out); + + indent(out) << "break;" << endl; + indent_down(); + } + + // In the default case we skip the field + indent(out) << "default:" << endl; + indent_up(); + indent(out) << "TProtocolUtil.skip(iprot, field.type);" << endl; + indent(out) << "break;" << endl; + indent_down(); + + scope_down(out); + + // Read field end marker + indent(out) << "iprot.readFieldEnd();" << endl; + + scope_down(out); + + indent(out) << "iprot.readStructEnd();" << endl2; + + // in non-beans style, check for required fields of primitive type + // (which can be checked here but not in the general validate method) + indent(out) << "// check for required fields of primitive type, which can't be " + "checked in the validate method" << endl; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if ((*f_iter)->get_req() == t_field::T_REQUIRED && !type_can_be_null((*f_iter)->get_type())) { + string field_name = get_field_name((*f_iter)->get_name()); + indent(out) << "if (!__isset_" << field_name << ")"; + scope_up(out); + indent(out) << " throw new TProtocolError(TProtocolErrorType.UNKNOWN, \"Required field '" + << field_name + << "' was not found in serialized data! Struct: \" + toString());" << endl; + scope_down(out, endl2); + } + } + + // performs various checks (e.g. check that all required fields are set) + indent(out) << "validate();" << endl; + + scope_down(out, endl2); +} + +// generates dart method to perform various checks +// (e.g. check that all required fields are set) +void t_dart_generator::generate_dart_validator(ofstream& out, t_struct* tstruct) { + indent(out) << "validate()"; + scope_up(out); + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + indent(out) << "// check for required fields" << endl; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if ((*f_iter)->get_req() == t_field::T_REQUIRED) { + string field_name = get_field_name((*f_iter)->get_name()); + if (type_can_be_null((*f_iter)->get_type())) { + indent(out) << "if (" << field_name << " == null)"; + scope_up(out); + indent(out) << "throw new TProtocolError(TProtocolErrorType.UNKNOWN, \"Required field '" + << field_name << "' was not present! Struct: \" + toString());" + << endl; + scope_down(out); + } else { + indent(out) << "// alas, we cannot check '" << field_name + << "' because it's a primitive and you chose the non-beans generator." << endl; + } + } + } + + // check that fields of type enum have valid values + indent(out) << "// check that fields of type enum have valid values" << endl; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = (*f_iter); + t_type* type = field->get_type(); + // if field is an enum, check that its value is valid + if (type->is_enum()) { + string field_name = get_field_name(field->get_name()); + indent(out) << "if (" << generate_isset_check(field) << " && !" << get_enum_class_name(type) + << ".VALID_VALUES.contains(" << field_name << "))"; + scope_up(out); + indent(out) << "throw new TProtocolError(TProtocolErrorType.UNKNOWN, \"The field '" + << field_name << "' has been assigned the invalid value " + << "$" << field_name << "\");" << endl; + scope_down(out); + } + } + + scope_down(out, endl2); +} + +/** + * Generates a function to write all the fields of the struct + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_dart_struct_writer(ofstream& out, t_struct* tstruct) { + out << indent() << "write(TProtocol oprot)"; + scope_up(out); + + string name = tstruct->get_name(); + const vector<t_field*>& fields = tstruct->get_sorted_members(); + vector<t_field*>::const_iterator f_iter; + + // performs various checks (e.g. check that all required fields are set) + indent(out) << "validate();" << endl2; + + indent(out) << "oprot.writeStructBegin(_STRUCT_DESC);" << endl; + + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + string field_name = get_field_name((*f_iter)->get_name()); + bool null_allowed = type_can_be_null((*f_iter)->get_type()); + if (null_allowed) { + indent(out) << "if (this." << field_name << " != null)"; + scope_up(out); + } + + indent(out) << "oprot.writeFieldBegin(_" << constant_name((*f_iter)->get_name()) + << "_FIELD_DESC);" << endl; + + // Write field contents + generate_serialize_field(out, *f_iter, "this."); + + // Write field closer + indent(out) << "oprot.writeFieldEnd();" << endl; + + if (null_allowed) { + scope_down(out); + } + } + // Write the struct map + indent(out) << "oprot.writeFieldStop();" << endl << indent() << "oprot.writeStructEnd();" + << endl; + + scope_down(out, endl2); +} + +/** + * Generates a function to write all the fields of the struct, + * which is a function result. These fields are only written + * if they are set in the Isset array, and only one of them + * can be set at a time. + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_dart_struct_result_writer(ofstream& out, t_struct* tstruct) { + indent(out) << "write(TProtocol oprot)"; + scope_up(out); + + string name = tstruct->get_name(); + const vector<t_field*>& fields = tstruct->get_sorted_members(); + vector<t_field*>::const_iterator f_iter; + + indent(out) << "oprot.writeStructBegin(_STRUCT_DESC);" << endl2; + + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if (first) { + first = false; + indent(out) << "if "; + } else { + out << " else if "; + } + + out << "(this." << generate_isset_check(*f_iter) << ")"; + scope_up(out); + + indent(out) << "oprot.writeFieldBegin(_" << constant_name((*f_iter)->get_name()) + << "_FIELD_DESC);" << endl; + + // Write field contents + generate_serialize_field(out, *f_iter, "this."); + + // Write field closer + indent(out) << "oprot.writeFieldEnd();" << endl; + + scope_down(out, ""); + } + out << endl; + + // Write the struct map + indent(out) << "oprot.writeFieldStop();" << endl << indent() + << "oprot.writeStructEnd();" << endl; + + scope_down(out, endl2); +} + +void t_dart_generator::generate_generic_field_getters(std::ofstream& out, + t_struct* tstruct) { + // create the getter + indent(out) << "getFieldValue(int fieldID)"; + scope_up(out); + + indent(out) << "switch (fieldID)"; + scope_up(out); + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = *f_iter; + std::string field_name = get_field_name(field->get_name()); + + indent(out) << "case " << upcase_string(field_name) << ":" << endl; + indent_up(); + indent(out) << "return this." << field_name << ";" << endl; + indent_down(); + } + + indent(out) << "default:" << endl; + indent_up(); + indent(out) << "throw new ArgumentError(\"Field $fieldID doesn't exist!\");" << endl; + indent_down(); + + scope_down(out); // switch + scope_down(out, endl2); // method +} + +void t_dart_generator::generate_generic_field_setters(std::ofstream& out, + t_struct* tstruct) { + + // create the setter + indent(out) << "setFieldValue(int fieldID, Object value)"; + scope_up(out); + + indent(out) << "switch (fieldID)"; + scope_up(out); + + // build up the bodies of both the getter and setter at once + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = *f_iter; + std::string field_name = get_field_name(field->get_name()); + + indent(out) << "case " << upcase_string(field_name) << ":" << endl; + indent_up(); + + indent(out) << "if (value == null)"; + scope_up(out); + indent(out) << "unset" << get_cap_name(field_name) << "();" << endl; + + scope_down(out, " else"); + scope_up(out); + indent(out) << "this." << field_name << " = value;" << endl; + scope_down(out); + + indent(out) << "break;" << endl; + + indent_down(); + out << endl; + } + + indent(out) << "default:" << endl; + indent_up(); + indent(out) << "throw new ArgumentError(\"Field $fieldID doesn't exist!\");" << endl; + indent_down(); + + scope_down(out); // switch + scope_down(out, endl2); // method +} + +// Creates a generic isSet method that takes the field number as argument +void t_dart_generator::generate_generic_isset_method(std::ofstream& out, t_struct* tstruct) { + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + // create the isSet method + indent(out) << "// Returns true if field corresponding to fieldID is set (has been assigned a " + "value) and false otherwise" << endl; + indent(out) << "bool isSet(int fieldID)"; + scope_up(out); + + indent(out) << "switch (fieldID)"; + scope_up(out); + + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = *f_iter; + indent(out) << "case " << upcase_string(field->get_name()) << ":" << endl; + indent_up(); + indent(out) << "return " << generate_isset_check(field) << ";" << endl; + indent_down(); + } + + indent(out) << "default:" << endl; + indent_up(); + indent(out) << "throw new ArgumentError(\"Field $fieldID doesn't exist!\");" << endl; + indent_down(); + + scope_down(out); // switch + scope_down(out, endl2); // method +} + +/** + * Generates a set of Dart Bean boilerplate functions (setters, getters, etc.) + * for the given struct. + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_dart_bean_boilerplate(ofstream& out, + t_struct* tstruct) { + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = *f_iter; + t_type* type = get_true_type(field->get_type()); + std::string field_name = get_field_name(field->get_name()); + std::string cap_name = get_cap_name(field_name); + + indent(out) << "// " << field_name << endl; + + // Simple getter + generate_dart_doc(out, field); + indent(out) << type_name(type) << " get " << field_name << " => this._" << field_name << ";" << endl2; + + // Simple setter + generate_dart_doc(out, field); + indent(out) << "set " << field_name << "(" << type_name(type) << " " << field_name << ")"; + scope_up(out); + indent(out) << "this._" << field_name << " = " << field_name << ";" << endl; + generate_isset_set(out, field); + scope_down(out, endl2); + + // isSet method + indent(out) << "bool is" << get_cap_name("set") << cap_name << "()"; + if (type_can_be_null(type)) { + out << " => this." << field_name << " != null;" << endl2; + } else { + out << " => this.__isset_" << field_name << ";" << endl2; + } + + // Unsetter + indent(out) << "unset" << cap_name << "()"; + scope_up(out); + if (type_can_be_null(type)) { + indent(out) << "this." << field_name << " = null;" << endl; + } else { + indent(out) << "this.__isset_" << field_name << " = false;" << endl; + } + scope_down(out, endl2); + } +} + +/** + * Generates a toString() method for the given struct + * + * @param tstruct The struct definition + */ +void t_dart_generator::generate_dart_struct_tostring(ofstream& out, + t_struct* tstruct) { + indent(out) << "String toString()"; + scope_up(out); + + indent(out) << "StringBuffer ret = new StringBuffer(\"" + << tstruct->get_name() << "(\");" << endl2; + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + bool could_be_unset = (*f_iter)->get_req() == t_field::T_OPTIONAL; + if (could_be_unset) { + indent(out) << "if (" << generate_isset_check(*f_iter) << ")"; + scope_up(out); + } + + t_field* field = (*f_iter); + std::string field_name = get_field_name(field->get_name()); + + if (!first) { + indent(out) << "ret.write(\", \");" << endl; + } + indent(out) << "ret.write(\"" << field_name << ":\");" << endl; + bool can_be_null = type_can_be_null(field->get_type()); + if (can_be_null) { + indent(out) << "if (this." << field_name << " == null)"; + scope_up(out); + indent(out) << "ret.write(\"null\");" << endl; + scope_down(out, " else"); + scope_up(out); + } + + if (field->get_type()->is_base_type() && ((t_base_type*)(field->get_type()))->is_binary()) { + indent(out) << "ret.write(\"BINARY\");" << endl; + } else if (field->get_type()->is_enum()) { + indent(out) << "String " << field_name << "_name = " + << get_enum_class_name(field->get_type()) + << ".VALUES_TO_NAMES[this." << field_name << "];" << endl; + indent(out) << "if (" << field_name << "_name != null)"; + scope_up(out); + indent(out) << "ret.write(" << field_name << "_name);" << endl; + indent(out) << "ret.write(\" (\");" << endl; + scope_down(out); + indent(out) << "ret.write(this." << field_name << ");" << endl; + indent(out) << "if (" << field_name << "_name != null)"; + scope_up(out); + indent(out) << "ret.write(\")\");" << endl; + scope_down(out); + } else { + indent(out) << "ret.write(this." << field_name << ");" << endl; + } + + if (can_be_null) { + scope_down(out); + } + if (could_be_unset) { + scope_down(out); + } + + out << endl; + first = false; + } + + indent(out) << "ret.write(\")\");" << endl2; + + indent(out) << "return ret.toString();" << endl; + + scope_down(out, endl2); +} + +/** + * Returns a string with the dart representation of the given thrift type + * (e.g. for the type struct it returns "TType.STRUCT") + */ +std::string t_dart_generator::get_dart_type_string(t_type* type) { + if (type->is_list()) { + return "TType.LIST"; + } else if (type->is_map()) { + return "TType.MAP"; + } else if (type->is_set()) { + return "TType.SET"; + } else if (type->is_struct() || type->is_xception()) { + return "TType.STRUCT"; + } else if (type->is_enum()) { + return "TType.I32"; + } else if (type->is_typedef()) { + return get_dart_type_string(((t_typedef*)type)->get_type()); + } else if (type->is_base_type()) { + switch (((t_base_type*)type)->get_base()) { + case t_base_type::TYPE_VOID: + return "TType.VOID"; + break; + case t_base_type::TYPE_STRING: + return "TType.STRING"; + break; + case t_base_type::TYPE_BOOL: + return "TType.BOOL"; + break; + case t_base_type::TYPE_BYTE: + return "TType.BYTE"; + break; + case t_base_type::TYPE_I16: + return "TType.I16"; + break; + case t_base_type::TYPE_I32: + return "TType.I32"; + break; + case t_base_type::TYPE_I64: + return "TType.I64"; + break; + case t_base_type::TYPE_DOUBLE: + return "TType.DOUBLE"; + break; + default: + throw std::runtime_error("Unknown thrift type \"" + type->get_name() + + "\" passed to t_dart_generator::get_dart_type_string!"); + break; // This should never happen! + } + } else { + throw std::runtime_error( + "Unknown thrift type \"" + type->get_name() + + "\" passed to t_dart_generator::get_dart_type_string!"); // This should never happen! + } +} + +void t_dart_generator::generate_service(t_service* tservice) { + string file_name = get_file_name(service_name_); + string f_service_name = src_dir_ + "/" + file_name + ".dart"; + f_service_.open(f_service_name.c_str()); + + f_service_ << autogen_comment() << dart_library(file_name) << endl; + f_service_ << service_imports() << dart_thrift_imports() << endl; + f_service_ << endl; + + generate_service_interface(tservice); + generate_service_client(tservice); + generate_service_server(tservice); + generate_service_helpers(tservice); + + f_service_.close(); +} + +/** + * Generates a service interface definition. + * + * @param tservice The service to generate a header definition for + */ +void t_dart_generator::generate_service_interface(t_service* tservice) { + string extends_iface = ""; + if (tservice->get_extends() != NULL) { + extends_iface = " extends " + tservice->get_extends()->get_name(); + } + + generate_dart_doc(f_service_, tservice); + + string class_name = service_name_; + export_class_to_library(get_file_name(service_name_), class_name); + indent(f_service_) << "abstract class " << class_name << extends_iface; + scope_up(f_service_); + + 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_service_ << endl; + generate_dart_doc(f_service_, *f_iter); + indent(f_service_) << function_signature(*f_iter) << ";" << endl; + } + + scope_down(f_service_, endl2); +} + +/** + * Generates structs for all the service args and return types + * + * @param tservice The service + */ +void t_dart_generator::generate_service_helpers(t_service* tservice) { + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + t_struct* ts = (*f_iter)->get_arglist(); + generate_dart_struct_definition(f_service_, ts, false, false); + generate_function_helpers(*f_iter); + } +} + +/** + * Generates a service client definition. + * + * @param tservice The service to generate a server for. + */ +void t_dart_generator::generate_service_client(t_service* tservice) { + string extends = ""; + string extends_client = ""; + if (tservice->get_extends() != NULL) { + extends = tservice->get_extends()->get_name(); + extends_client = " extends " + extends + "Client"; + } + + string class_name = service_name_ + "Client"; + export_class_to_library(get_file_name(service_name_), class_name); + indent(f_service_) << "class " << class_name << extends_client + << " implements " << service_name_; + scope_up(f_service_); + f_service_ << endl; + + indent(f_service_) << class_name << "(TProtocol iprot, [TProtocol oprot = null])"; + + if (!extends.empty()) { + indent_up(); + f_service_ << endl; + indent(f_service_) << ": super(iprot, oprot);" << endl; + indent_down(); + } else { + scope_up(f_service_); + indent(f_service_) << "_iprot = iprot;" << endl; + indent(f_service_) << "_oprot = (oprot == null) ? iprot : oprot;" << endl; + scope_down(f_service_); + } + f_service_ << endl; + + if (extends.empty()) { + indent(f_service_) << "TProtocol _iprot;" << endl2; + indent(f_service_) << "TProtocol get iprot => _iprot;" << endl2; + indent(f_service_) << "TProtocol _oprot;" << endl2; + indent(f_service_) << "TProtocol get oprot => _oprot;" << endl2; + indent(f_service_) << "int _seqid = 0;" << endl2; + indent(f_service_) << "int get seqid => _seqid;" << endl2; + indent(f_service_) << "int nextSeqid() => ++_seqid;" << endl2; + } + + // 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) { + string funname = (*f_iter)->get_name(); + + // Open function + indent(f_service_) << function_signature(*f_iter) << " async"; + scope_up(f_service_); + + // Get the struct of function call params + t_struct* arg_struct = (*f_iter)->get_arglist(); + + string argsname = get_args_class_name((*f_iter)->get_name()); + vector<t_field*>::const_iterator fld_iter; + const vector<t_field*>& fields = arg_struct->get_members(); + + // Serialize the request + indent(f_service_) << "oprot.writeMessageBegin(new TMessage(\"" << funname << "\", " + << ((*f_iter)->is_oneway() ? "TMessageType.ONEWAY" : "TMessageType.CALL") + << ", nextSeqid()));" << endl; + indent(f_service_) << argsname << " args = new " << argsname << "();" << endl; + + for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) { + indent(f_service_) << "args." << (*fld_iter)->get_name() << " = " + << (*fld_iter)->get_name() << ";" << endl; + } + + indent(f_service_) << "args.write(oprot);" << endl; + indent(f_service_) << "oprot.writeMessageEnd();" << endl2; + + indent(f_service_) << "await oprot.transport.flush();" << endl2; + + if (!(*f_iter)->is_oneway()) { + indent(f_service_) << "TMessage msg = iprot.readMessageBegin();" << endl; + indent(f_service_) << "if (msg.type == TMessageType.EXCEPTION)"; + scope_up(f_service_); + indent(f_service_) << "TApplicationError error = TApplicationError.read(iprot);" << endl; + indent(f_service_) << "iprot.readMessageEnd();" << endl; + indent(f_service_) << "throw error;" << endl; + scope_down(f_service_, endl2); + + string result_class = get_result_class_name((*f_iter)->get_name()); + indent(f_service_) << result_class << " result = new " << result_class << "();" << endl; + indent(f_service_) << "result.read(iprot);" << endl; + indent(f_service_) << "iprot.readMessageEnd();" << endl; + + // Careful, only return _result if not a void function + if (!(*f_iter)->get_returntype()->is_void()) { + indent(f_service_) << "if (result." << generate_isset_check("success") << ")"; + scope_up(f_service_); + indent(f_service_) << "return result.success;" << endl; + scope_down(f_service_, endl2); + } + + 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) { + string result_field_name = get_field_name((*x_iter)->get_name()); + indent(f_service_) << "if (result." << result_field_name << " != null)"; + scope_up(f_service_); + indent(f_service_) << "throw result." << result_field_name << ";" << endl; + scope_down(f_service_); + } + + // If you get here it's an exception, unless a void function + if ((*f_iter)->get_returntype()->is_void()) { + indent(f_service_) << "return;" << endl; + } else { + indent(f_service_) << "throw new TApplicationError(TApplicationErrorType.MISSING_RESULT, \"" + << (*f_iter)->get_name() << " failed: unknown result\");" << endl; + } + } + + scope_down(f_service_, endl2); + } + + scope_down(f_service_, endl2); +} + +/** + * Generates a service server definition. + * + * @param tservice The service to generate a server for. + */ +void t_dart_generator::generate_service_server(t_service* tservice) { + // Generate the dispatch methods + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::iterator f_iter; + + // typedef + indent(f_service_) << "typedef void ProcessFunction(int seqid, TProtocol iprot, TProtocol oprot);" << endl2; + + // Extends stuff + string extends = ""; + string extends_processor = ""; + if (tservice->get_extends() != NULL) { + extends = type_name(tservice->get_extends()); + extends_processor = " extends " + extends + "Processor"; + } + + // Generate the header portion + string class_name = service_name_ + "Processor"; + export_class_to_library(get_file_name(service_name_), class_name); + indent(f_service_) << "class " << class_name << extends_processor << " implements TProcessor"; + scope_up(f_service_); + + indent(f_service_) << class_name << "(" << service_name_ << " iface)"; + if (!extends.empty()) { + indent_up(); + f_service_ << endl; + indent(f_service_) << ": super(iface)"; + indent_down(); + } + scope_up(f_service_); + + if (extends.empty()) { + indent(f_service_) << "iface_ = iface;" << endl; + } + + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + indent(f_service_) << "PROCESS_MAP[\"" << (*f_iter)->get_name() + << "\"] = " << (*f_iter)->get_name() << ";" << endl; + } + scope_down(f_service_, endl2); + + indent(f_service_) << service_name_ << " iface_;" << endl; + + if (extends.empty()) { + indent(f_service_) << "final Map<String, ProcessFunction> PROCESS_MAP = {};" << endl; + } + + f_service_ << endl; + + // Generate the server implementation + indent(f_service_) << "bool process(TProtocol iprot, TProtocol oprot)"; + scope_up(f_service_); + indent(f_service_) << "TMessage msg = iprot.readMessageBegin();" << endl; + indent(f_service_) << "ProcessFunction fn = PROCESS_MAP[msg.name];" << endl; + indent(f_service_) << "if (fn == null)"; + scope_up(f_service_); + indent(f_service_) << "TProtocolUtil.skip(iprot, TType.STRUCT);" << endl; + indent(f_service_) << "iprot.readMessageEnd();" << endl; + indent(f_service_) << "TApplicationError x = new TApplicationError(TApplicationErrorType.UNKNOWN_METHOD, " + "\"Invalid method name: '\"+msg.name+\"'\");" << endl; + indent(f_service_) << "oprot.writeMessageBegin(new TMessage(msg.name, TMessageType.EXCEPTION, msg.seqid));" << endl; + indent(f_service_) << "x.write(oprot);" << endl; + indent(f_service_) << "oprot.writeMessageEnd();" << endl; + indent(f_service_) << "oprot.transport.flush();" << endl; + indent(f_service_) << "return true;" << endl; + scope_down(f_service_); + indent(f_service_) << "fn(msg.seqid, iprot, oprot);" << endl; + indent(f_service_) << "return true;" << endl; + scope_down(f_service_, endl2); // process function + + // Generate the process subfunctions + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + generate_process_function(tservice, *f_iter); + } + + scope_down(f_service_, endl2); // class +} + +/** + * Generates a struct and helpers for a function. + * + * @param tfunction The function + */ +void t_dart_generator::generate_function_helpers(t_function* tfunction) { + if (tfunction->is_oneway()) { + return; + } + + t_struct result(program_, get_result_class_name(tfunction->get_name())); + t_field success(tfunction->get_returntype(), "success", 0); + if (!tfunction->get_returntype()->is_void()) { + result.append(&success); + } + + t_struct* xs = tfunction->get_xceptions(); + const vector<t_field*>& fields = xs->get_members(); + vector<t_field*>::const_iterator f_iter; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + result.append(*f_iter); + } + + generate_dart_struct_definition(f_service_, &result, false, true); +} + +/** + * Generates a process function definition. + * + * @param tfunction The function to write a dispatcher for + */ +void t_dart_generator::generate_process_function(t_service* tservice, t_function* tfunction) { + (void)tservice; + + bool await_result = (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void()); + + indent(f_service_) << tfunction->get_name() << "(int seqid, TProtocol iprot, TProtocol oprot)"; + if (await_result) { + f_service_ << " async"; + } + scope_up(f_service_); + + string argsname = get_args_class_name(tfunction->get_name()); + string resultname = get_result_class_name(tfunction->get_name()); + + indent(f_service_) << argsname << " args = new " << argsname << "();" << endl; + indent(f_service_) << "args.read(iprot);" << endl; + indent(f_service_) << "iprot.readMessageEnd();" << endl; + + t_struct* xs = tfunction->get_xceptions(); + const std::vector<t_field*>& xceptions = xs->get_members(); + vector<t_field*>::const_iterator x_iter; + + if (!tfunction->is_oneway()) { + indent(f_service_) << resultname << " result = new " << resultname << "();" << endl; + } + + if (!tfunction->is_oneway() && xceptions.size() > 0) { + indent(f_service_) << "try"; + scope_up(f_service_); + } + + // Generate the function call + t_struct* arg_struct = tfunction->get_arglist(); + const std::vector<t_field*>& fields = arg_struct->get_members(); + vector<t_field*>::const_iterator f_iter; + + f_service_ << indent(); + if (await_result) { + f_service_ << "result.success = await "; + } + f_service_ << "iface_." << tfunction->get_name() << "("; + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if (first) { + first = false; + } else { + f_service_ << ", "; + } + f_service_ << "args." << get_field_name((*f_iter)->get_name()); + } + f_service_ << ");" << endl; + + if (!tfunction->is_oneway() && xceptions.size() > 0) { + for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) { + string result_field_name = get_field_name((*x_iter)->get_name()); + scope_down(f_service_, ""); + f_service_ << " on " << type_name((*x_iter)->get_type()) + << " catch(" << result_field_name << ")"; + scope_up(f_service_); + if (!tfunction->is_oneway()) { + indent(f_service_) << "result." << result_field_name << " = " + << result_field_name << ";" << endl; + } + } + scope_down(f_service_, " "); + f_service_ << "catch (th)"; + scope_up(f_service_); + indent(f_service_) << "// Internal error" << endl; + indent(f_service_) << "TApplicationError x = new " + "TApplicationError(TApplicationErrorType.INTERNAL_ERROR, \"Internal error processing " + << tfunction->get_name() << "\");" << endl; + indent(f_service_) << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() + << "\", TMessageType.EXCEPTION, seqid));" << endl; + indent(f_service_) << "x.write(oprot);" << endl; + indent(f_service_) << "oprot.writeMessageEnd();" << endl; + indent(f_service_) << "oprot.transport.flush();" << endl; + indent(f_service_) << "return;" << endl; + scope_down(f_service_); + } + + if (tfunction->is_oneway()) { + indent(f_service_) << "return;" << endl; + } else { + indent(f_service_) << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() + << "\", TMessageType.REPLY, seqid));" << endl; + indent(f_service_) << "result.write(oprot);" << endl; + indent(f_service_) << "oprot.writeMessageEnd();" << endl; + indent(f_service_) << "oprot.transport.flush();" << endl; + } + + scope_down(f_service_, endl2); +} + +/** + * Deserializes a field of any type. + * + * @param tfield The field + * @param prefix The variable name or container for this field + */ +void t_dart_generator::generate_deserialize_field(ofstream& out, t_field* tfield, string prefix) { + t_type* type = get_true_type(tfield->get_type()); + string field_name = get_field_name(tfield->get_name()); + + if (type->is_void()) { + throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " + prefix + field_name; + } + + string name = prefix + field_name; + + if (type->is_struct() || type->is_xception()) { + generate_deserialize_struct(out, (t_struct*)type, name); + } else if (type->is_container()) { + generate_deserialize_container(out, type, name); + } else if (type->is_base_type() || type->is_enum()) { + + indent(out) << name << " = iprot."; + + if (type->is_base_type()) { + t_base_type::t_base tbase = ((t_base_type*)type)->get_base(); + switch (tbase) { + case t_base_type::TYPE_VOID: + throw "compiler error: cannot serialize void field in a struct: " + name; + break; + case t_base_type::TYPE_STRING: + if (((t_base_type*)type)->is_binary()) { + out << "readBinary();"; + } else { + out << "readString();"; + } + break; + case t_base_type::TYPE_BOOL: + out << "readBool();"; + break; + case t_base_type::TYPE_BYTE: + out << "readByte();"; + break; + case t_base_type::TYPE_I16: + out << "readI16();"; + break; + case t_base_type::TYPE_I32: + out << "readI32();"; + break; + case t_base_type::TYPE_I64: + out << "readI64();"; + break; + case t_base_type::TYPE_DOUBLE: + out << "readDouble();"; + break; + default: + throw "compiler error: no Dart name for base type " + t_base_type::t_base_name(tbase); + } + } else if (type->is_enum()) { + out << "readI32();"; + } + out << endl; + } else { + printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n", + field_name.c_str(), + type_name(type).c_str()); + } +} + +/** + * Generates an unserializer for a struct, invokes read() + */ +void t_dart_generator::generate_deserialize_struct(ofstream& out, t_struct* tstruct, string prefix) { + indent(out) << prefix << " = new " << type_name(tstruct) << "();" << endl; + indent(out) << prefix << ".read(iprot);" << endl; +} + +/** + * Deserializes a container by reading its size and then iterating + */ +void t_dart_generator::generate_deserialize_container(ofstream& out, t_type* ttype, string prefix) { + indent(out); + scope_up(out, ""); + + string obj; + + if (ttype->is_map()) { + obj = tmp("_map"); + } else if (ttype->is_set()) { + obj = tmp("_set"); + } else if (ttype->is_list()) { + obj = tmp("_list"); + } + + // Declare variables, read header + if (ttype->is_map()) { + indent(out) << "TMap " << obj << " = iprot.readMapBegin();" << endl; + } else if (ttype->is_set()) { + indent(out) << "TSet " << obj << " = iprot.readSetBegin();" << endl; + } else if (ttype->is_list()) { + indent(out) << "TList " << obj << " = iprot.readListBegin();" << endl; + } + + indent(out) << prefix << " = new " << type_name(ttype) << "();" << endl; + + // For loop iterates over elements + string i = tmp("_i"); + indent(out) << "for (int " << i << " = 0; " << i << " < " << obj << ".length" + << "; " + << "++" << i << ")"; + scope_up(out); + + if (ttype->is_map()) { + generate_deserialize_map_element(out, (t_map*)ttype, prefix); + } else if (ttype->is_set()) { + generate_deserialize_set_element(out, (t_set*)ttype, prefix); + } else if (ttype->is_list()) { + generate_deserialize_list_element(out, (t_list*)ttype, prefix); + } + + scope_down(out); + + // Read container end + if (ttype->is_map()) { + indent(out) << "iprot.readMapEnd();" << endl; + } else if (ttype->is_set()) { + indent(out) << "iprot.readSetEnd();" << endl; + } else if (ttype->is_list()) { + indent(out) << "iprot.readListEnd();" << endl; + } + + scope_down(out); +} + +/** + * Generates code to deserialize a map + */ +void t_dart_generator::generate_deserialize_map_element(ofstream& out, t_map* tmap, string prefix) { + string key = tmp("_key"); + string val = tmp("_val"); + t_field fkey(tmap->get_key_type(), key); + t_field fval(tmap->get_val_type(), val); + + indent(out) << declare_field(&fkey) << endl; + indent(out) << declare_field(&fval) << endl; + + generate_deserialize_field(out, &fkey); + generate_deserialize_field(out, &fval); + + indent(out) << prefix << "[" << key << "] = " << val << ";" << endl; +} + +/** + * Deserializes a set element + */ +void t_dart_generator::generate_deserialize_set_element(ofstream& out, t_set* tset, string prefix) { + string elem = tmp("_elem"); + t_field felem(tset->get_elem_type(), elem); + + indent(out) << declare_field(&felem) << endl; + + generate_deserialize_field(out, &felem); + + indent(out) << prefix << ".add(" << elem << ");" << endl; +} + +/** + * Deserializes a list element + */ +void t_dart_generator::generate_deserialize_list_element(ofstream& out, + t_list* tlist, + string prefix) { + string elem = tmp("_elem"); + t_field felem(tlist->get_elem_type(), elem); + + indent(out) << declare_field(&felem) << endl; + + generate_deserialize_field(out, &felem); + + indent(out) << prefix << ".add(" << elem << ");" << endl; +} + +/** + * Serializes a field of any type. + * + * @param tfield The field to serialize + * @param prefix Name to prepend to field name + */ +void t_dart_generator::generate_serialize_field(ofstream& out, t_field* tfield, string prefix) { + t_type* type = get_true_type(tfield->get_type()); + string field_name = get_field_name(tfield->get_name()); + + // Do nothing for void types + if (type->is_void()) { + throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " + prefix + field_name; + } + + if (type->is_struct() || type->is_xception()) { + generate_serialize_struct(out, (t_struct*)type, prefix + field_name); + } else if (type->is_container()) { + generate_serialize_container(out, type, prefix + field_name); + } else if (type->is_base_type() || type->is_enum()) { + + string name = prefix + field_name; + indent(out) << "oprot."; + + if (type->is_base_type()) { + t_base_type::t_base tbase = ((t_base_type*)type)->get_base(); + switch (tbase) { + case t_base_type::TYPE_VOID: + throw "compiler error: cannot serialize void field in a struct: " + name; + break; + case t_base_type::TYPE_STRING: + if (((t_base_type*)type)->is_binary()) { + out << "writeBinary(" << name << ");"; + } else { + out << "writeString(" << name << ");"; + } + break; + case t_base_type::TYPE_BOOL: + out << "writeBool(" << name << ");"; + break; + case t_base_type::TYPE_BYTE: + out << "writeByte(" << name << ");"; + break; + case t_base_type::TYPE_I16: + out << "writeI16(" << name << ");"; + break; + case t_base_type::TYPE_I32: + out << "writeI32(" << name << ");"; + break; + case t_base_type::TYPE_I64: + out << "writeI64(" << name << ");"; + break; + case t_base_type::TYPE_DOUBLE: + out << "writeDouble(" << name << ");"; + break; + default: + throw "compiler error: no Dart name for base type " + t_base_type::t_base_name(tbase); + } + } else if (type->is_enum()) { + out << "writeI32(" << name << ");"; + } + out << endl; + } else { + printf("DO NOT KNOW HOW TO SERIALIZE FIELD '%s%s' TYPE '%s'\n", + prefix.c_str(), + field_name.c_str(), + type_name(type).c_str()); + } +} + +/** + * Serializes all the members of a struct. + * + * @param tstruct The struct to serialize + * @param prefix String prefix to attach to all fields + */ +void t_dart_generator::generate_serialize_struct(ofstream& out, t_struct* tstruct, string prefix) { + (void)tstruct; + indent(out) << prefix << ".write(oprot);" << endl; +} + +/** + * Serializes a container by writing its size then the elements. + * + * @param ttype The type of container + * @param prefix String prefix for fields + */ +void t_dart_generator::generate_serialize_container(ofstream& out, t_type* ttype, string prefix) { + indent(out); + scope_up(out, ""); + + if (ttype->is_map()) { + string iter = tmp("_key"); + indent(out) << "oprot.writeMapBegin(new TMap(" << type_to_enum(((t_map*)ttype)->get_key_type()) + << ", " << type_to_enum(((t_map*)ttype)->get_val_type()) << ", " << prefix << ".length));" + << endl; + } else if (ttype->is_set()) { + indent(out) << "oprot.writeSetBegin(new TSet(" << type_to_enum(((t_set*)ttype)->get_elem_type()) + << ", " << prefix << ".length));" << endl; + } else if (ttype->is_list()) { + indent(out) << "oprot.writeListBegin(new TList(" + << type_to_enum(((t_list*)ttype)->get_elem_type()) << ", " << prefix << ".length));" + << endl; + } + + string iter = tmp("elem"); + if (ttype->is_map()) { + indent(out) << "for (var " << iter << " in " << prefix << ".keys)"; + } else if (ttype->is_set() || ttype->is_list()) { + indent(out) << "for (var " << iter << " in " << prefix << ")"; + } + + scope_up(out); + + if (ttype->is_map()) { + generate_serialize_map_element(out, (t_map*)ttype, iter, prefix); + } else if (ttype->is_set()) { + generate_serialize_set_element(out, (t_set*)ttype, iter); + } else if (ttype->is_list()) { + generate_serialize_list_element(out, (t_list*)ttype, iter); + } + + scope_down(out); + + if (ttype->is_map()) { + indent(out) << "oprot.writeMapEnd();" << endl; + } else if (ttype->is_set()) { + indent(out) << "oprot.writeSetEnd();" << endl; + } else if (ttype->is_list()) { + indent(out) << "oprot.writeListEnd();" << endl; + } + + scope_down(out); +} + +/** + * Serializes the members of a map. + */ +void t_dart_generator::generate_serialize_map_element(ofstream& out, + t_map* tmap, + string iter, + string map) { + t_field kfield(tmap->get_key_type(), iter); + generate_serialize_field(out, &kfield, ""); + t_field vfield(tmap->get_val_type(), map + "[" + iter + "]"); + generate_serialize_field(out, &vfield, ""); +} + +/** + * Serializes the members of a set. + */ +void t_dart_generator::generate_serialize_set_element(ofstream& out, t_set* tset, string iter) { + t_field efield(tset->get_elem_type(), iter); + generate_serialize_field(out, &efield, ""); +} + +/** + * Serializes the members of a list. + */ +void t_dart_generator::generate_serialize_list_element(ofstream& out, t_list* tlist, string iter) { + t_field efield(tlist->get_elem_type(), iter); + generate_serialize_field(out, &efield, ""); +} + +/** + * Returns a Dart type name + * + * @param ttype The type + * @return Dart type name, i.e. Map<Key, Value> + */ +string t_dart_generator::type_name(t_type* ttype) { + ttype = get_true_type(ttype); + + if (ttype->is_base_type()) { + return base_type_name((t_base_type*)ttype); + } else if (ttype->is_enum()) { + return "int"; + } else if (ttype->is_map()) { + t_map* tmap = (t_map*)ttype; + return "Map<" + type_name(tmap->get_key_type()) + ", " + + type_name(tmap->get_val_type()) + ">"; + } else if (ttype->is_set()) { + t_set* tset = (t_set*)ttype; + return "Set<" + type_name(tset->get_elem_type()) + ">"; + } else if (ttype->is_list()) { + t_list* tlist = (t_list*)ttype; + return "List<" + type_name(tlist->get_elem_type()) + ">"; + } + + return ttype->get_name(); +} + +/** + * Returns the Dart type that corresponds to the thrift type. + * + * @param tbase The base type + */ +string t_dart_generator::base_type_name(t_base_type* type) { + t_base_type::t_base tbase = type->get_base(); + + switch (tbase) { + case t_base_type::TYPE_VOID: + return "void"; + case t_base_type::TYPE_STRING: + if (type->is_binary()) { + return "Uint8List"; + } else { + return "String"; + } + case t_base_type::TYPE_BOOL: + return "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 "int"; + case t_base_type::TYPE_DOUBLE: + return "double"; + default: + throw "compiler error: no Dart name for base type " + t_base_type::t_base_name(tbase); + } +} + +/** + * Declares a field, which may include initialization as necessary. + * + * @param ttype The type + */ +string t_dart_generator::declare_field(t_field* tfield, bool init) { + string field_name = get_field_name(tfield->get_name()); + string result = type_name(tfield->get_type()) + " " + field_name; + if (init) { + t_type* ttype = get_true_type(tfield->get_type()); + if (ttype->is_base_type() && tfield->get_value() != NULL) { + ofstream dummy; + result += " = " + render_const_value(dummy, field_name, ttype, tfield->get_value()); + } else if (ttype->is_base_type()) { + t_base_type::t_base tbase = ((t_base_type*)ttype)->get_base(); + switch (tbase) { + case t_base_type::TYPE_VOID: + throw "NO T_VOID CONSTRUCT"; + case t_base_type::TYPE_STRING: + result += " = null"; + break; + case t_base_type::TYPE_BOOL: + result += " = 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: + result += " = 0"; + break; + case t_base_type::TYPE_DOUBLE: + result += " = 0.0"; + break; + } + + } else if (ttype->is_enum()) { + result += " = 0"; + } else if (ttype->is_container()) { + result += " = new " + type_name(ttype) + "()"; + } else { + result += " = new " + type_name(ttype) + "()"; + ; + } + } + return result + ";"; +} + +/** + * Renders a function signature of the form 'type name(args)' + * + * @param tfunction Function definition + * @return String of rendered function definition + */ +string t_dart_generator::function_signature(t_function* tfunction) { + std::string arguments = argument_list(tfunction->get_arglist()); + + std::string returntype; + if (tfunction->get_returntype()->is_void()) { + returntype = "Future"; + } else { + returntype = "Future<" + type_name(tfunction->get_returntype()) + ">"; + } + + std::string result = returntype + " " + tfunction->get_name() + "(" + arguments + ")"; + return result; +} + +/** + * Renders a comma separated field list, with type names + */ +string t_dart_generator::argument_list(t_struct* tstruct) { + string result = ""; + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if (first) { + first = false; + } else { + result += ", "; + } + string field_name = get_field_name((*f_iter)->get_name()); + result += type_name((*f_iter)->get_type()) + " " + field_name; + } + return result; +} + +/** + * Converts the parse type to a C++ enum string for the given type. + */ +string t_dart_generator::type_to_enum(t_type* type) { + type = get_true_type(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 "NO T_VOID CONSTRUCT"; + case t_base_type::TYPE_STRING: + return "TType.STRING"; + case t_base_type::TYPE_BOOL: + return "TType.BOOL"; + case t_base_type::TYPE_BYTE: + return "TType.BYTE"; + case t_base_type::TYPE_I16: + return "TType.I16"; + case t_base_type::TYPE_I32: + return "TType.I32"; + case t_base_type::TYPE_I64: + return "TType.I64"; + case t_base_type::TYPE_DOUBLE: + return "TType.DOUBLE"; + } + } else if (type->is_enum()) { + return "TType.I32"; + } else if (type->is_struct() || type->is_xception()) { + return "TType.STRUCT"; + } else if (type->is_map()) { + return "TType.MAP"; + } else if (type->is_set()) { + return "TType.SET"; + } else if (type->is_list()) { + return "TType.LIST"; + } + + throw "INVALID TYPE IN type_to_enum: " + type->get_name(); +} + +std::string t_dart_generator::get_cap_name(std::string name) { + name[0] = toupper(name[0]); + return name; +} + +std::string t_dart_generator::get_field_name(std::string name) { + name[0] = tolower(name[0]); + return name; +} + +std::string t_dart_generator::get_args_class_name(std::string name) { + return name + "_args"; +} + +std::string t_dart_generator::get_result_class_name(std::string name) { + return name + "_result"; +} + +std::string t_dart_generator::get_file_name(std::string name) { + // e.g. change APIForFileIO to api_for_file_io + + string ret; + const char* tmp = name.c_str(); + bool is_prev_lc = true; + bool is_current_lc = tmp[0] == tolower(tmp[0]); + bool is_next_lc = false; + + for (unsigned int i = 0; i < name.length(); i++) { + char lc = tolower(tmp[i]); + + if (i == name.length() - 1) { + is_next_lc = false; + } else { + is_next_lc = (tmp[i+1] == tolower(tmp[i+1])); + } + + if (i != 0 && !is_current_lc && (is_prev_lc || is_next_lc)) { + ret += "_"; + } + ret += lc; + + is_prev_lc = is_current_lc; + is_current_lc = is_next_lc; + } + + return ret; +} + +string t_dart_generator::constant_name(string name) { + string constant_name; + + bool is_first = true; + bool was_previous_char_upper = false; + for (string::iterator iter = name.begin(); iter != name.end(); ++iter) { + string::value_type character = (*iter); + + bool is_upper = isupper(character); + + if (is_upper && !is_first && !was_previous_char_upper) { + constant_name += '_'; + } + constant_name += toupper(character); + + is_first = false; + was_previous_char_upper = is_upper; + } + + return constant_name; +} + +/** + * Emits a doc comment if the provided object has a doc in Thrift + */ +void t_dart_generator::generate_dart_doc(ofstream& out, t_doc* tdoc) { + if (tdoc->has_doc()) { + generate_docstring_comment(out, "", "/// ", tdoc->get_doc(), ""); + } +} + +/** + * Emits a doc comment if the provided function object has a doc in Thrift + */ +void t_dart_generator::generate_dart_doc(ofstream& out, t_function* tfunction) { + if (tfunction->has_doc()) { + stringstream ss; + ss << tfunction->get_doc(); + const vector<t_field*>& fields = tfunction->get_arglist()->get_members(); + vector<t_field*>::const_iterator p_iter; + for (p_iter = fields.begin(); p_iter != fields.end(); ++p_iter) { + t_field* p = *p_iter; + string field_name = get_field_name(p->get_name()); + ss << "\n@param " << field_name; + if (p->has_doc()) { + ss << " " << p->get_doc(); + } + } + generate_docstring_comment(out, "", "/// ", ss.str(), ""); + } +} + +std::string t_dart_generator::generate_isset_check(t_field* field) { + string field_name = get_field_name(field->get_name()); + return generate_isset_check(field_name); +} + +std::string t_dart_generator::generate_isset_check(std::string field_name) { + return "is" + get_cap_name("set") + get_cap_name(field_name) + "()"; +} + +void t_dart_generator::generate_isset_set(ofstream& out, t_field* field) { + if (!type_can_be_null(field->get_type())) { + string field_name = get_field_name(field->get_name()); + indent(out) << "this.__isset_" << field_name << " = true;" << endl; + } +} + +std::string t_dart_generator::get_enum_class_name(t_type* type) { + return type->get_name(); +} + +THRIFT_REGISTER_GENERATOR( + dart, + "Dart", + " library_name=my_library Optional override for library name.\n" +) http://git-wip-us.apache.org/repos/asf/thrift/blob/932c4700/configure.ac ---------------------------------------------------------------------- diff --git a/configure.ac b/configure.ac index 880cc32..e6b3be0 100755 --- a/configure.ac +++ b/configure.ac @@ -122,6 +122,7 @@ if test "$enable_libs" = "no"; then with_perl="no" with_php="no" with_php_extension="no" + with_dart="no" with_erlang="no" with_go="no" with_d="no" @@ -325,6 +326,16 @@ AM_CONDITIONAL(WITH_PHP_EXTENSION, [test "$have_php_extension" = "yes"]) AC_PATH_PROG([PHPUNIT], [phpunit]) AM_CONDITIONAL(HAVE_PHPUNIT, [test "x$PHPUNIT" != "x"]) +AX_THRIFT_LIB(dart, [DART], yes) +if test "$with_dart" = "yes"; then + AC_PATH_PROG([DART], [dart]) + AC_PATH_PROG([DARTPUB], [pub]) + if test "x$DART" != "x" -a "x$DARTPUB" != "x"; then + have_dart="yes" + fi +fi +AM_CONDITIONAL(WITH_DART, [test "$have_dart" = "yes"]) + AX_THRIFT_LIB(ruby, [Ruby], yes) have_ruby=no if test "$with_ruby" = "yes"; then @@ -727,6 +738,7 @@ AC_CONFIG_FILES([ lib/perl/test/Makefile lib/php/Makefile lib/php/test/Makefile + lib/dart/Makefile lib/py/Makefile lib/rb/Makefile lib/lua/Makefile @@ -738,6 +750,7 @@ AC_CONFIG_FILES([ test/haxe/Makefile test/hs/Makefile test/php/Makefile + test/dart/Makefile test/perl/Makefile test/py/Makefile test/py.twisted/Makefile @@ -752,6 +765,7 @@ AC_CONFIG_FILES([ tutorial/java/Makefile tutorial/js/Makefile tutorial/nodejs/Makefile + tutorial/dart/Makefile tutorial/py/Makefile tutorial/py.twisted/Makefile tutorial/py.tornado/Makefile @@ -776,6 +790,8 @@ if test "$have_perl" = "yes" ; then MAYBE_PERL="perl" ; else MAYBE_PERL="" ; fi AC_SUBST([MAYBE_PERL]) if test "$have_php" = "yes" ; then MAYBE_PHP="php" ; else MAYBE_PHP="" ; fi AC_SUBST([MAYBE_PHP]) +if test "$have_dart" = "yes" ; then MAYBE_DART="dart" ; else MAYBE_DART="" ; fi +AC_SUBST([MAYBE_DART]) if test "$have_go" = "yes" ; then MAYBE_GO="go" ; else MAYBE_GO="" ; fi AC_SUBST([MAYBE_GO]) if test "$have_nodejs" = "yes" ; then MAYBE_NODEJS="nodejs" ; else MAYBE_NODEJS="" ; fi @@ -797,6 +813,7 @@ echo "Building Haxe Library ........ : $have_haxe" echo "Building Haskell Library ..... : $have_haskell" echo "Building Perl Library ........ : $have_perl" echo "Building PHP Library ......... : $have_php" +echo "Building Dart Library ........ : $have_dart" echo "Building Erlang Library ...... : $have_erlang" echo "Building Go Library .......... : $have_go" echo "Building D Library ........... : $have_d" @@ -834,6 +851,12 @@ if test "$have_php" = "yes" ; then echo "PHP Library:" echo " Using php-config .......... : $PHP_CONFIG" fi +if test "$have_dart" = "yes" ; then + echo + echo "Dart Library:" + echo " Using Dart ................ : $DART" + echo " Using Pub ................. : $DARTPUB" +fi if test "$have_ruby" = "yes" ; then echo echo "Ruby Library:"
