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Posted to commits@thrift.apache.org by ns...@apache.org on 2016/09/25 16:43:33 UTC
[44/55] [abbrv] [partial] thrift git commit: THRIFT-2835 Add
possibility to distribute generators separately from thrift core,
and load them dynamically
http://git-wip-us.apache.org/repos/asf/thrift/blob/052abc39/compiler/cpp/src/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
deleted file mode 100644
index 7a744cf..0000000
--- a/compiler/cpp/src/generate/t_dart_generator.cc
+++ /dev/null
@@ -1,2516 +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.
- */
-
-#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;
-
- library_name_ = "";
- library_prefix_ = "";
- package_prefix_ = "";
- pubspec_lib_ = "";
- for( iter = parsed_options.begin(); iter != parsed_options.end(); ++iter) {
- if( iter->first.compare("library_name") == 0) {
- library_name_ = (iter->second);
- } else if( iter->first.compare("library_prefix") == 0) {
- library_prefix_ = (iter->second) + ".";
- package_prefix_ = replace_all(library_prefix_, ".", "/");
- } else if( iter->first.compare("pubspec_lib") == 0) {
- pubspec_lib_ = (iter->second);
- } else {
- throw "unknown option dart:" + iter->first;
- }
- }
-
- 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 init_value(t_field* tfield);
- std::string get_cap_name(std::string name);
- std::string get_member_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 get_constants_class_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 find_library_name(t_program* program);
- 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_ttype_class_name(t_type* ttype);
-
- 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();
- }
-
- vector<std::string> split(const string& s, char delim) {
- vector<std::string> elems;
- stringstream ss(s);
- string item;
- while (getline(ss, item, delim)) {
- elems.push_back(item);
- }
- return elems;
- }
-
- std::string constant_name(std::string name);
-
-private:
- std::ofstream f_service_;
-
- std::string library_name_;
- std::string library_prefix_;
- std::string package_prefix_;
- std::string pubspec_lib_;
-
- 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_ = find_library_name(program_);
- }
-
- string subdir = get_out_dir() + "/" + library_name_;
- MKDIR(subdir.c_str());
- base_dir_ = subdir;
-
- if (library_prefix_.empty()) {
- subdir += "/lib";
- MKDIR(subdir.c_str());
- subdir += "/src";
- MKDIR(subdir.c_str());
- src_dir_ = subdir;
- } else {
- src_dir_ = base_dir_;
- }
-}
-
-string t_dart_generator::find_library_name(t_program* program) {
- string name = program->get_namespace("dart");
- if (name.empty()) {
- name = program->get_name();
- }
- name = replace_all(name, ".", "_");
- name = replace_all(name, "-", "_");
- return name;
-}
-
-/**
- * The Dart library
- *
- * @return String of the library, e.g. "library myservice;"
- */
-string t_dart_generator::dart_library(string file_name) {
- string out = "library " + library_prefix_ + library_name_;
- if (!file_name.empty()) {
- if (library_prefix_.empty()) {
- out += ".src." + file_name;
- } else {
- out += "." + 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;
-
- // add import for this library
- if (package_prefix_.empty()) {
- imports += "import 'package:" + library_name_ + "/" + library_name_ + ".dart';" + endl;
- } else {
- imports += "import 'package:" + package_prefix_ + 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 = find_library_name(includes[i]);
- string named_import = "t_" + include_name;
- if (package_prefix_.empty()) {
- imports += "import 'package:" + include_name + "/" + include_name + ".dart' as " + named_import + ";" + endl;
- } else {
- imports += "import 'package:" + package_prefix_ + include_name + ".dart' as " + named_import + ";" + endl;
- }
- }
-
- return imports;
-}
-
-/**
- * Not used
- */
-void t_dart_generator::close_generator() {
- generate_dart_library();
-
- if (library_prefix_.empty()) {
- generate_dart_pubspec();
- }
-}
-
-void t_dart_generator::generate_dart_library() {
- string f_library_name;
- if (library_prefix_.empty()) {
- f_library_name = base_dir_ + "/lib/" + library_name_ + ".dart";
- } else {
- f_library_name = get_out_dir() + "/" + library_name_ + ".dart";
- }
-
- ofstream f_library;
- f_library.open(f_library_name.c_str());
-
- f_library << autogen_comment() << endl;
- f_library << "library " << library_prefix_ << library_name_ << ";" << endl2;
- f_library << library_exports_;
-
- f_library.close();
-}
-
-void t_dart_generator::export_class_to_library(string file_name, string class_name) {
- string subdir;
- if (library_prefix_.empty()) {
- subdir = "src";
- } else {
- subdir = library_name_;
- }
- library_exports_ += "export '" + subdir + "/" + 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();
-
- if (pubspec_lib_.empty()) {
- // default to relative path within working directory, which works for tests
- indent(f_pubspec) << "thrift: # ^" << dart_thrift_version << endl;
- indent_up();
- indent(f_pubspec) << "path: ../../../../lib/dart" << endl;
- indent_down();
- } else {
- const vector<std::string> lines = split(pubspec_lib_, '|');
- for (size_t line_index = 0; line_index < lines.size(); line_index++) {
- indent(f_pubspec) << lines[line_index] << endl;
- }
- }
-
- // 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 = find_library_name(includes[i]);
- 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_constants_class_name(program_name_);
- 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;
- f_consts << dart_thrift_imports() << 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) << "()";
- indent_up();
- 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);
- out << endl;
- indent(out) << ".." << v_iter->first->get_string() << " = " << val;
- }
- indent_down();
- 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_I8:
- 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_member_name((*m_iter)->get_name()) << init_value(*m_iter) << ";" << 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_member_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." + get_member_name((*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_member_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_member_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_member_name(field->get_name());
- indent(out) << "if (" << generate_isset_check(field) << " && !" << get_ttype_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);
-
- 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_member_name((*f_iter)->get_name());
- 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);
- }
- 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);
- }
- if (could_be_unset) {
- 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);
-
- 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_member_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_member_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_member_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_member_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_ttype_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_I8:
- 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 " + get_ttype_class_name(tservice->get_extends());
- }
-
- 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 = get_ttype_class_name(tservice->get_extends());
- 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) {
- // 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(\"" << (*f_iter)->get_name() << "\", "
- << ((*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) {
- string arg_field_name = get_member_name((*fld_iter)->get_name());
- indent(f_service_) << "args." << arg_field_name << " = "
- << arg_field_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_member_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 = get_ttype_class_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()
- << "\"] = " << get_member_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_) << get_member_name(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_." << get_member_name(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_member_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_member_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_member_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_I8:
- 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_member_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_I8:
- 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 get_ttype_class_name(ttype);
-}
-
-/**
- * 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_I8:
- 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_member_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_I8:
- 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 + " " + get_member_name(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_member_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_I8:
- 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::init_value(t_field* field) {
- // Do not initialize optional fields
- if (field->get_req() == t_field::T_OPTIONAL) {
- return "";
- }
-
- t_type* ttype = field->get_type();
-
- // Get the actual type for a typedef
- if (ttype->is_typedef()) {
- ttype = ((t_typedef*)ttype)->get_type();
- }
-
- // Only consider base types for default initialization
- if (!ttype->is_base_type()) {
- return "";
- }
- t_base_type::t_base tbase = ((t_base_type*)ttype)->get_base();
-
- // Initialize bools, ints, and doubles with sane defaults
- string result;
- switch (tbase) {
- case t_base_type::TYPE_BOOL:
- result = " = false";
- break;
- case t_base_type::TYPE_I8:
- 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;
- case t_base_type::TYPE_VOID:
- case t_base_type::TYPE_STRING:
- result = "";
- break;
- }
-
- return result;
-}
-
-std::string t_dart_generator::get_cap_name(std::string name) {
- name[0] = toupper(name[0]);
- return name;
-}
-
-std::string t_dart_generator::get_member_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;
-}
-
-std::string t_dart_generator::get_constants_class_name(std::string name) {
- // e.g. change my_great_model to MyGreatModelConstants
- string ret;
- const char* tmp = name.c_str();
- bool is_prev_underscore = true;
-
- for (unsigned int i = 0; i < name.length(); i++) {
- if (tmp[i] == '_') {
- is_prev_underscore = true;
- } else {
- if (is_prev_underscore) {
- ret += toupper(tmp[i]);
- } else {
- ret += tmp[i];
- }
-
- is_prev_underscore = false;
- }
- }
-
- return ret + "Constants";
-}
-
-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_member_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_member_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_member_name(field->get_name());
- indent(out) << "this.__isset_" << field_name << " = true;" << endl;
- }
-}
-
-std::string t_dart_generator::get_ttype_class_name(t_type* ttype) {
- if (program_ == ttype->get_program()) {
- return ttype->get_name();
- } else {
- string named_import = "t_" + find_library_name(ttype->get_program());
- return named_import + "." + ttype->get_name();
- }
-}
-
-THRIFT_REGISTER_GENERATOR(
- dart,
- "Dart",
- " library_name: Optional override for library name.\n"
- " library_prefix: Generate code that can be used within an existing library.\n"
- " Use a dot-separated string, e.g. \"my_parent_lib.src.gen\"\n"
- " pubspec_lib: Optional override for thrift lib dependency in pubspec.yaml,\n"
- " e.g. \"thrift: 0.x.x\". Use a pipe delimiter to separate lines,\n"
- " e.g. \"thrift:| git:| url: git@foo.com\"\n"
-)