diff options
Diffstat (limited to 'compiler/cpp/src/thrift/generate/t_as3_generator.cc')
-rw-r--r-- | compiler/cpp/src/thrift/generate/t_as3_generator.cc | 2594 |
1 files changed, 2594 insertions, 0 deletions
diff --git a/compiler/cpp/src/thrift/generate/t_as3_generator.cc b/compiler/cpp/src/thrift/generate/t_as3_generator.cc new file mode 100644 index 000000000..5ae3f91d6 --- /dev/null +++ b/compiler/cpp/src/thrift/generate/t_as3_generator.cc @@ -0,0 +1,2594 @@ +/* + * 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 "thrift/platform.h" +#include "thrift/generate/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 + +/** + * AS3 code generator. + * + */ +class t_as3_generator : public t_oop_generator { +public: + t_as3_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; + + bindable_ = false; + for( iter = parsed_options.begin(); iter != parsed_options.end(); ++iter) { + if( iter->first.compare("bindable") == 0) { + bindable_ = true; + } else { + throw "unknown option as3:" + iter->first; + } + } + + out_dir_base_ = "gen-as3"; + } + + /** + * Init and close methods + */ + + void init_generator(); + void close_generator(); + + void generate_consts(std::vector<t_const*> consts); + + /** + * Program-level generation functions + */ + + void generate_typedef(t_typedef* ttypedef); + void generate_enum(t_enum* tenum); + void generate_struct(t_struct* tstruct); + void generate_xception(t_struct* txception); + void generate_service(t_service* tservice); + + void print_const_value(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_as3_struct(t_struct* tstruct, bool is_exception); + + void generate_as3_struct_definition(std::ofstream& out, + t_struct* tstruct, + bool is_xception = false, + bool in_class = false, + bool is_result = false); + // removed -- equality,compare_to + void generate_as3_struct_reader(std::ofstream& out, t_struct* tstruct); + void generate_as3_validator(std::ofstream& out, t_struct* tstruct); + void generate_as3_struct_result_writer(std::ofstream& out, t_struct* tstruct); + void generate_as3_struct_writer(std::ofstream& out, t_struct* tstruct); + void generate_as3_struct_tostring(std::ofstream& out, t_struct* tstruct, bool bindable); + void generate_as3_meta_data_map(std::ofstream& out, t_struct* tstruct); + void generate_field_value_meta_data(std::ofstream& out, t_type* type); + std::string get_as3_type_string(t_type* type); + void generate_reflection_setters(std::ostringstream& out, + t_type* type, + std::string field_name, + std::string cap_name); + void generate_reflection_getters(std::ostringstream& out, + t_type* type, + std::string field_name, + std::string cap_name); + void generate_generic_field_getters_setters(std::ofstream& out, t_struct* tstruct); + void generate_generic_isset_method(std::ofstream& out, t_struct* tstruct); + void generate_as3_bean_boilerplate(std::ofstream& out, t_struct* tstruct, bool bindable); + + void generate_function_helpers(t_function* tfunction); + std::string get_cap_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); + // removed std::string isset_field_id(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_as3_doc(std::ofstream& out, t_doc* tdoc); + + void generate_as3_doc(std::ofstream& out, t_function* tdoc); + + /** + * Helper rendering functions + */ + + std::string as3_package(); + std::string as3_type_imports(); + std::string as3_thrift_imports(); + std::string as3_thrift_gen_imports(t_struct* tstruct, string& imports); + std::string as3_thrift_gen_imports(t_service* tservice); + std::string type_name(t_type* ttype, bool in_container = false, bool in_init = false); + std::string base_type_name(t_base_type* tbase, bool in_container = false); + std::string declare_field(t_field* tfield, bool init = false); + std::string function_signature(t_function* tfunction, std::string prefix = ""); + 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: + /** + * File streams + */ + + std::string package_name_; + std::ofstream f_service_; + std::string package_dir_; + + bool bindable_; +}; + +/** + * Prepares for file generation by opening up the necessary file output + * streams. + * + * @param tprogram The program to generate + */ +void t_as3_generator::init_generator() { + // Make output directory + MKDIR(get_out_dir().c_str()); + package_name_ = program_->get_namespace("as3"); + + string dir = package_name_; + string subdir = get_out_dir(); + string::size_type loc; + while ((loc = dir.find(".")) != string::npos) { + subdir = subdir + "/" + dir.substr(0, loc); + MKDIR(subdir.c_str()); + dir = dir.substr(loc + 1); + } + if (dir.size() > 0) { + subdir = subdir + "/" + dir; + MKDIR(subdir.c_str()); + } + + package_dir_ = subdir; +} + +/** + * Packages the generated file + * + * @return String of the package, i.e. "package org.apache.thriftdemo;" + */ +string t_as3_generator::as3_package() { + if (!package_name_.empty()) { + return string("package ") + package_name_ + " "; + } + return "package "; +} + +/** + * Prints standard as3 imports + * + * @return List of imports for As3 types that are used in here + */ +string t_as3_generator::as3_type_imports() { + return string() + "import org.apache.thrift.Set;\n" + "import flash.utils.ByteArray;\n" + + "import flash.utils.Dictionary;\n\n"; +} + +/** + * Prints standard as3 imports + * + * @return List of imports necessary for thrift + */ +string t_as3_generator::as3_thrift_imports() { + return string() + "import org.apache.thrift.*;\n" + "import org.apache.thrift.meta_data.*;\n" + + "import org.apache.thrift.protocol.*;\n\n"; +} + +/** + * Prints imports needed for a given type + * + * @return List of imports necessary for a given t_struct + */ +string t_as3_generator::as3_thrift_gen_imports(t_struct* tstruct, string& imports) { + + const vector<t_field*>& members = tstruct->get_members(); + vector<t_field*>::const_iterator m_iter; + + // For each type check if it is from a differnet namespace + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + t_program* program = (*m_iter)->get_type()->get_program(); + if (program != NULL && program != program_) { + string package = program->get_namespace("as3"); + if (!package.empty()) { + if (imports.find(package + "." + (*m_iter)->get_type()->get_name()) == string::npos) { + imports.append("import " + package + "." + (*m_iter)->get_type()->get_name() + ";\n"); + } + } + } + } + return imports; +} + +/** + * Prints imports needed for a given type + * + * @return List of imports necessary for a given t_service + */ +string t_as3_generator::as3_thrift_gen_imports(t_service* tservice) { + string imports; + const vector<t_function*>& functions = tservice->get_functions(); + vector<t_function*>::const_iterator f_iter; + + // For each type check if it is from a differnet namespace + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + t_program* program = (*f_iter)->get_returntype()->get_program(); + if (program != NULL && program != program_) { + string package = program->get_namespace("as3"); + if (!package.empty()) { + if (imports.find(package + "." + (*f_iter)->get_returntype()->get_name()) == string::npos) { + imports.append("import " + package + "." + (*f_iter)->get_returntype()->get_name() + + ";\n"); + } + } + } + + as3_thrift_gen_imports((*f_iter)->get_arglist(), imports); + as3_thrift_gen_imports((*f_iter)->get_xceptions(), imports); + } + + return imports; +} + +/** + * Nothing in As3 + */ +void t_as3_generator::close_generator() { +} + +/** + * Generates a typedef. This is not done in As3, since it does + * not support arbitrary name replacements, and it'd be a wacky waste + * of overhead to make wrapper classes. + * + * @param ttypedef The type definition + */ +void t_as3_generator::generate_typedef(t_typedef* ttypedef) { + (void)ttypedef; +} + +/** + * Enums are a class with a set of static constants. + * + * @param tenum The enumeration + */ +void t_as3_generator::generate_enum(t_enum* tenum) { + // Make output file + string f_enum_name = package_dir_ + "/" + (tenum->get_name()) + ".as"; + ofstream f_enum; + f_enum.open(f_enum_name.c_str()); + + // Comment and package it + f_enum << autogen_comment() << as3_package() << endl; + + scope_up(f_enum); + // Add as3 imports + f_enum << string() + "import org.apache.thrift.Set;" << endl << "import flash.utils.Dictionary;" + << endl; + + indent(f_enum) << "public class " << tenum->get_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) << "public static const " << (*c_iter)->get_name() << ":int = " << value << ";" + << endl; + } + + // Create a static Set with all valid values for this enum + f_enum << endl; + + indent(f_enum) << "public static const VALID_VALUES:Set = new Set("; + indent_up(); + bool firstValue = true; + for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) { + // populate set + f_enum << (firstValue ? "" : ", ") << (*c_iter)->get_name(); + firstValue = false; + } + indent_down(); + f_enum << ");" << endl; + + indent(f_enum) << "public static const VALUES_TO_NAMES:Dictionary = new Dictionary();" << endl; + + scope_up(f_enum); + for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) { + indent(f_enum) << "VALUES_TO_NAMES[" << (*c_iter)->get_name() << "] = \"" + << (*c_iter)->get_name() << "\";" << endl; + } + f_enum << endl; + + scope_down(f_enum); + + scope_down(f_enum); // end class + + scope_down(f_enum); // end package + + f_enum.close(); +} + +/** + * Generates a class that holds all the constants. + */ +void t_as3_generator::generate_consts(std::vector<t_const*> consts) { + if (consts.empty()) { + return; + } + + string f_consts_name = package_dir_ + "/" + program_name_ + "Constants.as"; + ofstream f_consts; + f_consts.open(f_consts_name.c_str()); + + // Print header + f_consts << autogen_comment() << as3_package(); + + scope_up(f_consts); + f_consts << endl; + + f_consts << as3_type_imports(); + + indent(f_consts) << "public class " << program_name_ << "Constants {" << endl << endl; + indent_up(); + 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); + } + indent_down(); + indent(f_consts) << "}" << endl; + scope_down(f_consts); + f_consts.close(); +} + +void t_as3_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 " : "public static const "); + } + if (type->is_base_type()) { + string v2 = render_const_value(out, name, type, value); + out << name; + if (!defval) { + out << ":" << type_name(type); + } + out << " = " << v2 << ";" << endl << endl; + } else if (type->is_enum()) { + out << name; + if (!defval) { + out << ":" << type_name(type); + } + 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 << name << ":" << type_name(type) << " = new " << type_name(type, false, true) << "();" + << endl; + if (!in_static) { + indent(out) << "{" << endl; + indent_up(); + indent(out) << "new function():void {" << endl; + 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); + indent(out) << name << "."; + out << v_iter->first->get_string() << " = " << val << ";" << endl; + } + if (!in_static) { + indent_down(); + indent(out) << "}();" << endl; + indent_down(); + indent(out) << "}" << endl; + } + out << endl; + } else if (type->is_map()) { + out << name; + if (!defval) { + out << ":" << type_name(type); + } + out << " = new " << type_name(type, false, true) << "();" << endl; + if (!in_static) { + indent(out) << "{" << endl; + indent_up(); + indent(out) << "new function():void {" << endl; + indent_up(); + } + t_type* ktype = ((t_map*)type)->get_key_type(); + t_type* vtype = ((t_map*)type)->get_val_type(); + const map<t_const_value*, t_const_value*>& val = value->get_map(); + map<t_const_value*, t_const_value*>::const_iterator v_iter; + for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { + string key = render_const_value(out, name, ktype, v_iter->first); + string val = render_const_value(out, name, vtype, v_iter->second); + indent(out) << name << "[" << key << "] = " << val << ";" << endl; + } + if (!in_static) { + indent_down(); + indent(out) << "}();" << endl; + indent_down(); + indent(out) << "}" << endl; + } + out << endl; + } else if (type->is_list() || type->is_set()) { + out << name; + if (!defval) { + out << ":" << type_name(type); + } + out << " = new " << type_name(type, false, true) << "();" << endl; + if (!in_static) { + indent(out) << "{" << endl; + indent_up(); + indent(out) << "new function():void {" << endl; + indent_up(); + } + t_type* etype; + if (type->is_list()) { + etype = ((t_list*)type)->get_elem_type(); + } else { + etype = ((t_set*)type)->get_elem_type(); + } + const vector<t_const_value*>& val = value->get_list(); + vector<t_const_value*>::const_iterator v_iter; + for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { + string val = render_const_value(out, name, etype, *v_iter); + indent(out) << name << "." << (type->is_list() ? "push" : "add") << "(" << val << ");" + << endl; + } + if (!in_static) { + indent_down(); + indent(out) << "}();" << endl; + indent_down(); + indent(out) << "}" << endl; + } + out << endl; + } else { + throw "compiler error: no const of type " + type->get_name(); + } +} + +string t_as3_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: + render << "(byte)" << value->get_integer(); + break; + case t_base_type::TYPE_I16: + render << "(short)" << value->get_integer(); + break; + case t_base_type::TYPE_I32: + render << value->get_integer(); + break; + case t_base_type::TYPE_I64: + render << value->get_integer() << "L"; + break; + case t_base_type::TYPE_DOUBLE: + if (value->get_type() == t_const_value::CV_INTEGER) { + render << "(double)" << 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); + 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_as3_generator::generate_struct(t_struct* tstruct) { + generate_as3_struct(tstruct, false); +} + +/** + * Exceptions are structs, but they inherit from Exception + * + * @param tstruct The struct definition + */ +void t_as3_generator::generate_xception(t_struct* txception) { + generate_as3_struct(txception, true); +} + +/** + * As3 struct definition. + * + * @param tstruct The struct definition + */ +void t_as3_generator::generate_as3_struct(t_struct* tstruct, bool is_exception) { + // Make output file + string f_struct_name = package_dir_ + "/" + (tstruct->get_name()) + ".as"; + ofstream f_struct; + f_struct.open(f_struct_name.c_str()); + + f_struct << autogen_comment() << as3_package(); + + scope_up(f_struct); + f_struct << endl; + + string imports; + + f_struct << as3_type_imports() << as3_thrift_imports() << as3_thrift_gen_imports(tstruct, imports) + << endl; + + if (bindable_ && !is_exception) { + f_struct << "import flash.events.Event;" << endl << "import flash.events.EventDispatcher;" + << endl << "import mx.events.PropertyChangeEvent;" << endl; + } + + generate_as3_struct_definition(f_struct, tstruct, is_exception); + + scope_down(f_struct); // end of package + f_struct.close(); +} + +/** + * As3 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_as3_generator::generate_as3_struct_definition(ofstream& out, + t_struct* tstruct, + bool is_exception, + bool in_class, + bool is_result) { + generate_as3_doc(out, tstruct); + + bool is_final = (tstruct->annotations_.find("final") != tstruct->annotations_.end()); + bool bindable = !is_exception && !in_class && bindable_; + + indent(out) << (in_class ? "" : "public ") << (is_final ? "final " : "") << "class " + << tstruct->get_name() << " "; + + if (is_exception) { + out << "extends Error "; + } else if (bindable) { + out << "extends EventDispatcher "; + } + out << "implements TBase "; + + scope_up(out); + + indent(out) << "private static const STRUCT_DESC:TStruct = new TStruct(\"" << tstruct->get_name() + << "\");" << endl; + + // Members are public for -as3, private for -as3bean + 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) << "private static const " << constant_name((*m_iter)->get_name()) + << "_FIELD_DESC:TField = 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_as3_doc(out, *m_iter); + indent(out) << "private var _" << (*m_iter)->get_name() + ":" + type_name((*m_iter)->get_type()) + << ";" << endl; + + indent(out) << "public static const " << upcase_string((*m_iter)->get_name()) + << ":int = " << (*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())) { + indent(out) << "private var __isset_" << (*m_iter)->get_name() << ":Boolean = false;" + << endl; + } + } + } + + out << endl; + + generate_as3_meta_data_map(out, tstruct); + + // Static initializer to populate global class to struct metadata map + indent(out) << "{" << endl; + indent_up(); + indent(out) << "FieldMetaData.addStructMetaDataMap(" << type_name(tstruct) << ", metaDataMap);" + << endl; + indent_down(); + indent(out) << "}" << endl << endl; + + // Default constructor + indent(out) << "public function " << tstruct->get_name() << "() {" << endl; + indent_up(); + for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { + if ((*m_iter)->get_value() != NULL) { + indent(out) << "this._" << (*m_iter)->get_name() << " = " + << (*m_iter)->get_value()->get_integer() << ";" << endl; + } + } + indent_down(); + indent(out) << "}" << endl << endl; + + generate_as3_bean_boilerplate(out, tstruct, bindable); + generate_generic_field_getters_setters(out, tstruct); + generate_generic_isset_method(out, tstruct); + + generate_as3_struct_reader(out, tstruct); + if (is_result) { + generate_as3_struct_result_writer(out, tstruct); + } else { + generate_as3_struct_writer(out, tstruct); + } + generate_as3_struct_tostring(out, tstruct, bindable); + generate_as3_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_as3_generator::generate_as3_struct_reader(ofstream& out, t_struct* tstruct) { + out << indent() << "public function read(iprot:TProtocol):void {" << endl; + indent_up(); + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + // Declare stack tmp variables and read struct header + out << indent() << "var field:TField;" << endl << indent() << "iprot.readStructBegin();" << endl; + + // Loop over reading in fields + indent(out) << "while (true)" << endl; + 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) { " << endl; + indent_up(); + indent(out) << "break;" << endl; + indent_down(); + indent(out) << "}" << endl; + + // Switch statement on the field we are reading + indent(out) << "switch (field.id)" << endl; + + 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()) << ") {" << endl; + indent_up(); + + generate_deserialize_field(out, *f_iter, "this."); + generate_isset_set(out, *f_iter); + indent_down(); + out << indent() << "} else { " << endl << indent() << " TProtocolUtil.skip(iprot, field.type);" + << endl << indent() << "}" << endl << indent() << "break;" << endl; + indent_down(); + } + + // In the default case we skip the field + out << indent() << "default:" << endl << indent() << " TProtocolUtil.skip(iprot, field.type);" + << endl << indent() << " break;" << endl; + + scope_down(out); + + // Read field end marker + indent(out) << "iprot.readFieldEnd();" << endl; + + scope_down(out); + + out << indent() << "iprot.readStructEnd();" << endl << endl; + + // in non-beans style, check for required fields of primitive type + // (which can be checked here but not in the general validate method) + out << endl << indent() << "// 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())) { + out << indent() << "if (!__isset_" << (*f_iter)->get_name() << ") {" << endl << indent() + << " throw new TProtocolError(TProtocolError.UNKNOWN, \"Required field '" + << (*f_iter)->get_name() + << "' was not found in serialized data! Struct: \" + toString());" << endl << indent() + << "}" << endl; + } + } + + // performs various checks (e.g. check that all required fields are set) + indent(out) << "validate();" << endl; + + indent_down(); + out << indent() << "}" << endl << endl; +} + +// generates as3 method to perform various checks +// (e.g. check that all required fields are set) +void t_as3_generator::generate_as3_validator(ofstream& out, t_struct* tstruct) { + indent(out) << "public function validate():void {" << endl; + indent_up(); + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + out << indent() << "// check for required fields" << endl; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if ((*f_iter)->get_req() == t_field::T_REQUIRED) { + if (type_can_be_null((*f_iter)->get_type())) { + indent(out) << "if (" << (*f_iter)->get_name() << " == null) {" << endl; + indent(out) << " throw new TProtocolError(TProtocolError.UNKNOWN, \"Required field '" + << (*f_iter)->get_name() << "' was not present! Struct: \" + toString());" + << endl; + indent(out) << "}" << endl; + } else { + indent(out) << "// alas, we cannot check '" << (*f_iter)->get_name() + << "' because it's a primitive and you chose the non-beans generator." << endl; + } + } + } + + // check that fields of type enum have valid values + out << indent() << "// 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()) { + indent(out) << "if (" << generate_isset_check(field) << " && !" << get_enum_class_name(type) + << ".VALID_VALUES.contains(" << field->get_name() << ")){" << endl; + indent_up(); + indent(out) << "throw new TProtocolError(TProtocolError.UNKNOWN, \"The field '" + << field->get_name() << "' has been assigned the invalid value \" + " + << field->get_name() << ");" << endl; + indent_down(); + indent(out) << "}" << endl; + } + } + + indent_down(); + indent(out) << "}" << endl << endl; +} + +/** + * Generates a function to write all the fields of the struct + * + * @param tstruct The struct definition + */ +void t_as3_generator::generate_as3_struct_writer(ofstream& out, t_struct* tstruct) { + out << indent() << "public function write(oprot:TProtocol):void {" << endl; + indent_up(); + + 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();" << endl << endl; + + indent(out) << "oprot.writeStructBegin(STRUCT_DESC);" << endl; + + 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) << ") {" << endl; + indent_up(); + } + bool null_allowed = type_can_be_null((*f_iter)->get_type()); + if (null_allowed) { + out << indent() << "if (this." << (*f_iter)->get_name() << " != null) {" << endl; + indent_up(); + } + + 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) { + indent_down(); + indent(out) << "}" << endl; + } + if (could_be_unset) { + indent_down(); + indent(out) << "}" << endl; + } + } + // Write the struct map + out << indent() << "oprot.writeFieldStop();" << endl << indent() << "oprot.writeStructEnd();" + << endl; + + indent_down(); + out << indent() << "}" << endl << endl; +} + +/** + * Generates a function to write all the fields of the struct, + * which is a function result. These fields are only written + * if they are set in the Isset array, and only one of them + * can be set at a time. + * + * @param tstruct The struct definition + */ +void t_as3_generator::generate_as3_struct_result_writer(ofstream& out, t_struct* tstruct) { + out << indent() << "public function write(oprot:TProtocol):void {" << endl; + indent_up(); + + 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);" << endl; + + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + if (first) { + first = false; + out << endl << indent() << "if "; + } else { + out << " else if "; + } + + out << "(this." << generate_isset_check(*f_iter) << ") {" << endl; + + indent_up(); + + 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; + + indent_down(); + indent(out) << "}"; + } + // Write the struct map + out << endl << indent() << "oprot.writeFieldStop();" << endl << indent() + << "oprot.writeStructEnd();" << endl; + + indent_down(); + out << indent() << "}" << endl << endl; +} + +void t_as3_generator::generate_reflection_getters(ostringstream& out, + t_type* type, + string field_name, + string cap_name) { + (void)type; + (void)cap_name; + indent(out) << "case " << upcase_string(field_name) << ":" << endl; + indent_up(); + indent(out) << "return this." << field_name << ";" << endl; + indent_down(); +} + +void t_as3_generator::generate_reflection_setters(ostringstream& out, + t_type* type, + string field_name, + string cap_name) { + (void)type; + (void)cap_name; + indent(out) << "case " << upcase_string(field_name) << ":" << endl; + indent_up(); + indent(out) << "if (value == null) {" << endl; + indent(out) << " unset" << get_cap_name(field_name) << "();" << endl; + indent(out) << "} else {" << endl; + indent(out) << " this." << field_name << " = value;" << endl; + indent(out) << "}" << endl; + indent(out) << "break;" << endl << endl; + + indent_down(); +} + +void t_as3_generator::generate_generic_field_getters_setters(std::ofstream& out, + t_struct* tstruct) { + + std::ostringstream getter_stream; + std::ostringstream setter_stream; + + // 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; + t_type* type = get_true_type(field->get_type()); + std::string field_name = field->get_name(); + std::string cap_name = get_cap_name(field_name); + + indent_up(); + generate_reflection_setters(setter_stream, type, field_name, cap_name); + generate_reflection_getters(getter_stream, type, field_name, cap_name); + indent_down(); + } + + // create the setter + indent(out) << "public function setFieldValue(fieldID:int, value:*):void {" << endl; + indent_up(); + + indent(out) << "switch (fieldID) {" << endl; + + out << setter_stream.str(); + + indent(out) << "default:" << endl; + indent(out) << " throw new ArgumentError(\"Field \" + fieldID + \" doesn't exist!\");" << endl; + + indent(out) << "}" << endl; + + indent_down(); + indent(out) << "}" << endl << endl; + + // create the getter + indent(out) << "public function getFieldValue(fieldID:int):* {" << endl; + indent_up(); + + indent(out) << "switch (fieldID) {" << endl; + + out << getter_stream.str(); + + indent(out) << "default:" << endl; + indent(out) << " throw new ArgumentError(\"Field \" + fieldID + \" doesn't exist!\");" << endl; + + indent(out) << "}" << endl; + + indent_down(); + + indent(out) << "}" << endl << endl; +} + +// Creates a generic isSet method that takes the field number as argument +void t_as3_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) << "public function isSet(fieldID:int):Boolean {" << endl; + indent_up(); + indent(out) << "switch (fieldID) {" << endl; + + 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(out) << " throw new ArgumentError(\"Field \" + fieldID + \" doesn't exist!\");" << endl; + + indent(out) << "}" << endl; + + indent_down(); + indent(out) << "}" << endl << endl; +} + +/** + * Generates a set of As3 Bean boilerplate functions (setters, getters, etc.) + * for the given struct. + * + * @param tstruct The struct definition + */ +void t_as3_generator::generate_as3_bean_boilerplate(ofstream& out, + t_struct* tstruct, + bool bindable) { + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = *f_iter; + t_type* type = get_true_type(field->get_type()); + std::string field_name = field->get_name(); + std::string cap_name = get_cap_name(field_name); + + // Simple getter + generate_as3_doc(out, field); + indent(out) << "public function get " << field_name << "():" << type_name(type) << " {" << endl; + indent_up(); + indent(out) << "return this._" << field_name << ";" << endl; + indent_down(); + indent(out) << "}" << endl << endl; + + // Simple setter + generate_as3_doc(out, field); + std::string propName = tmp("thriftPropertyChange"); + if (bindable) { + indent(out) << "[Bindable(event=\"" << propName << "\")]" << endl; + } + indent(out) << "public function set " << field_name << "(" << field_name << ":" + << type_name(type) << "):void {" << endl; + indent_up(); + indent(out) << "this._" << field_name << " = " << field_name << ";" << endl; + generate_isset_set(out, field); + + if (bindable) { + // We have to use a custom event rather than the default, because if you use the default, + // the setter only gets called if the value has changed - this means calling + // foo.setIntValue(0) + // will not cause foo.isIntValueSet() to return true since the value of foo._intValue wasn't + // changed + // so the setter was never called. + indent(out) << "dispatchEvent(new Event(\"" << propName << "\"));" << endl; + + // However, if you just use a custom event, then collections won't be able to detect when + // elements + // in the collections have changed since they listed for PropertyChangeEvents. So, we + // dispatch both. + indent(out) << "dispatchEvent(new PropertyChangeEvent(PropertyChangeEvent.PROPERTY_CHANGE));" + << endl; + } + indent_down(); + indent(out) << "}" << endl << endl; + + // Unsetter + indent(out) << "public function unset" << cap_name << "():void {" << endl; + indent_up(); + if (type_can_be_null(type)) { + indent(out) << "this." << field_name << " = null;" << endl; + } else { + indent(out) << "this.__isset_" << field_name << " = false;" << endl; + } + indent_down(); + indent(out) << "}" << endl << endl; + + // isSet method + indent(out) << "// Returns true if field " << field_name + << " is set (has been assigned a value) and false otherwise" << endl; + indent(out) << "public function is" << get_cap_name("set") << cap_name << "():Boolean {" + << endl; + indent_up(); + if (type_can_be_null(type)) { + indent(out) << "return this." << field_name << " != null;" << endl; + } else { + indent(out) << "return this.__isset_" << field_name << ";" << endl; + } + indent_down(); + indent(out) << "}" << endl << endl; + } +} + +/** + * Generates a toString() method for the given struct + * + * @param tstruct The struct definition + */ +void t_as3_generator::generate_as3_struct_tostring(ofstream& out, + t_struct* tstruct, + bool bindable) { + // If it's bindable, it extends EventDispatcher so toString is an override. + out << indent() << "public " << (bindable ? "override " : "") << "function toString():String {" + << endl; + indent_up(); + + out << indent() << "var ret:String = new String(\"" << tstruct->get_name() << "(\");" << endl; + out << indent() << "var first:Boolean = true;" << endl << endl; + + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + bool first = true; + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + bool could_be_unset = (*f_iter)->get_req() == t_field::T_OPTIONAL; + if (could_be_unset) { + indent(out) << "if (" << generate_isset_check(*f_iter) << ") {" << endl; + indent_up(); + } + + t_field* field = (*f_iter); + + if (!first) { + indent(out) << "if (!first) ret += \", \";" << endl; + } + indent(out) << "ret += \"" << (*f_iter)->get_name() << ":\";" << endl; + bool can_be_null = type_can_be_null(field->get_type()); + if (can_be_null) { + indent(out) << "if (this." << (*f_iter)->get_name() << " == null) {" << endl; + indent(out) << " ret += \"null\";" << endl; + indent(out) << "} else {" << endl; + indent_up(); + } + + if (field->get_type()->is_base_type() && ((t_base_type*)(field->get_type()))->is_binary()) { + indent(out) << " ret += \"BINARY\";" << endl; + } else if (field->get_type()->is_enum()) { + indent(out) << "var " << field->get_name() + << "_name:String = " << get_enum_class_name(field->get_type()) + << ".VALUES_TO_NAMES[this." << (*f_iter)->get_name() << "];" << endl; + indent(out) << "if (" << field->get_name() << "_name != null) {" << endl; + indent(out) << " ret += " << field->get_name() << "_name;" << endl; + indent(out) << " ret += \" (\";" << endl; + indent(out) << "}" << endl; + indent(out) << "ret += this." << field->get_name() << ";" << endl; + indent(out) << "if (" << field->get_name() << "_name != null) {" << endl; + indent(out) << " ret += \")\";" << endl; + indent(out) << "}" << endl; + } else { + indent(out) << "ret += this." << (*f_iter)->get_name() << ";" << endl; + } + + if (can_be_null) { + indent_down(); + indent(out) << "}" << endl; + } + indent(out) << "first = false;" << endl; + + if (could_be_unset) { + indent_down(); + indent(out) << "}" << endl; + } + first = false; + } + out << indent() << "ret += \")\";" << endl << indent() << "return ret;" << endl; + + indent_down(); + indent(out) << "}" << endl << endl; +} + +/** + * Generates a static map with meta data to store information such as fieldID to + * fieldName mapping + * + * @param tstruct The struct definition + */ +void t_as3_generator::generate_as3_meta_data_map(ofstream& out, t_struct* tstruct) { + const vector<t_field*>& fields = tstruct->get_members(); + vector<t_field*>::const_iterator f_iter; + + // Static Map with fieldID -> FieldMetaData mappings + indent(out) << "public static const metaDataMap:Dictionary = new Dictionary();" << endl; + + if (fields.size() > 0) { + // Populate map + scope_up(out); + for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { + t_field* field = *f_iter; + std::string field_name = field->get_name(); + indent(out) << "metaDataMap[" << upcase_string(field_name) << "] = new FieldMetaData(\"" + << field_name << "\", "; + + // Set field requirement type (required, optional, etc.) + if (field->get_req() == t_field::T_REQUIRED) { + out << "TFieldRequirementType.REQUIRED, "; + } else if (field->get_req() == t_field::T_OPTIONAL) { + out << "TFieldRequirementType.OPTIONAL, "; + } else { + out << "TFieldRequirementType.DEFAULT, "; + } + + // Create value meta data + generate_field_value_meta_data(out, field->get_type()); + out << ");" << endl; + } + scope_down(out); + } +} + +/** + * Returns a string with the as3 representation of the given thrift type + * (e.g. for the type struct it returns "TType.STRUCT") + */ +std::string t_as3_generator::get_as3_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_as3_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_as3_generator::get_as3_type_string!"); + break; // This should never happen! + } + } else { + throw std::runtime_error( + "Unknown thrift type \"" + type->get_name() + + "\" passed to t_as3_generator::get_as3_type_string!"); // This should never happen! + } +} + +void t_as3_generator::generate_field_value_meta_data(std::ofstream& out, t_type* type) { + out << endl; + indent_up(); + indent_up(); + if (type->is_struct() || type->is_xception()) { + indent(out) << "new StructMetaData(TType.STRUCT, " << type_name(type); + } else if (type->is_container()) { + if (type->is_list()) { + indent(out) << "new ListMetaData(TType.LIST, "; + t_type* elem_type = ((t_list*)type)->get_elem_type(); + generate_field_value_meta_data(out, elem_type); + } else if (type->is_set()) { + indent(out) << "new SetMetaData(TType.SET, "; + t_type* elem_type = ((t_list*)type)->get_elem_type(); + generate_field_value_meta_data(out, elem_type); + } else { // map + indent(out) << "new MapMetaData(TType.MAP, "; + t_type* key_type = ((t_map*)type)->get_key_type(); + t_type* val_type = ((t_map*)type)->get_val_type(); + generate_field_value_meta_data(out, key_type); + out << ", "; + generate_field_value_meta_data(out, val_type); + } + } else { + indent(out) << "new FieldValueMetaData(" << get_as3_type_string(type); + } + out << ")"; + indent_down(); + indent_down(); +} + +/** + * Generates a thrift service. In C++, this comprises an entirely separate + * header and source file. The header file defines the methods and includes + * the data types defined in the main header file, and the implementation + * file contains implementations of the basic printer and default interfaces. + * + * @param tservice The service definition + */ +void t_as3_generator::generate_service(t_service* tservice) { + // Make interface file + string f_service_name = package_dir_ + "/" + service_name_ + ".as"; + f_service_.open(f_service_name.c_str()); + + f_service_ << autogen_comment() << as3_package(); + + scope_up(f_service_); + + f_service_ << endl << as3_type_imports() << as3_thrift_imports() + << as3_thrift_gen_imports(tservice); + + if (tservice->get_extends() != NULL) { + t_type* parent = tservice->get_extends(); + string parent_namespace = parent->get_program()->get_namespace("as3"); + if (!parent_namespace.empty() && parent_namespace != package_name_) { + f_service_ << "import " << type_name(parent) << ";" << endl; + } + } + + f_service_ << endl; + + generate_service_interface(tservice); + + scope_down(f_service_); + f_service_.close(); + + // Now make the implementation/client file + f_service_name = package_dir_ + "/" + service_name_ + "Impl.as"; + f_service_.open(f_service_name.c_str()); + + f_service_ << autogen_comment() << as3_package(); + + scope_up(f_service_); + + f_service_ << endl << as3_type_imports() << as3_thrift_imports() + << as3_thrift_gen_imports(tservice); + + if (tservice->get_extends() != NULL) { + t_type* parent = tservice->get_extends(); + string parent_namespace = parent->get_program()->get_namespace("as3"); + if (!parent_namespace.empty() && parent_namespace != package_name_) { + f_service_ << "import " << type_name(parent) << "Impl;" << endl; + } + } + + f_service_ << endl; + + generate_service_client(tservice); + scope_down(f_service_); + + f_service_ << as3_type_imports(); + f_service_ << as3_thrift_imports(); + f_service_ << as3_thrift_gen_imports(tservice); + if (!package_name_.empty()) { + f_service_ << "import " << package_name_ << ".*;" << endl; + } + + generate_service_helpers(tservice); + + f_service_.close(); + + // Now make the processor/server file + f_service_name = package_dir_ + "/" + service_name_ + "Processor.as"; + f_service_.open(f_service_name.c_str()); + + f_service_ << autogen_comment() << as3_package(); + + scope_up(f_service_); + + f_service_ << endl << as3_type_imports() << as3_thrift_imports() + << as3_thrift_gen_imports(tservice) << endl; + + generate_service_server(tservice); + scope_down(f_service_); + + f_service_ << as3_type_imports(); + f_service_ << as3_thrift_imports(); + f_service_ << as3_thrift_gen_imports(tservice) << endl; + if (!package_name_.empty()) { + f_service_ << "import " << package_name_ << ".*;" << endl; + } + + generate_service_helpers(tservice); + + f_service_.close(); +} + +/** + * Generates a service interface definition. + * + * @param tservice The service to generate a header definition for + */ +void t_as3_generator::generate_service_interface(t_service* tservice) { + string extends_iface = ""; + if (tservice->get_extends() != NULL) { + extends_iface = " extends " + tservice->get_extends()->get_name(); + } + + generate_as3_doc(f_service_, tservice); + f_service_ << indent() << "public interface " << service_name_ << extends_iface << " {" << endl + << endl; + indent_up(); + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + generate_as3_doc(f_service_, *f_iter); + if (!(*f_iter)->is_oneway()) { + if ((*f_iter)->get_returntype()->is_void()) { + indent(f_service_) << "//function onError(Error):void;" << endl; + indent(f_service_) << "//function onSuccess():void;" << endl; + } else { + indent(f_service_) << "//function onError(Error):void;" << endl; + indent(f_service_) << "//function onSuccess(" << type_name((*f_iter)->get_returntype()) + << "):void;" << endl; + } + } + indent(f_service_) << function_signature(*f_iter) << ";" << endl << endl; + } + indent_down(); + f_service_ << indent() << "}" << endl << endl; +} + +/** + * Generates structs for all the service args and return types + * + * @param tservice The service + */ +void t_as3_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_as3_struct_definition(f_service_, ts, false, true); + generate_function_helpers(*f_iter); + } +} + +/** + * Generates a service client definition. + * + * @param tservice The service to generate a server for. + */ +void t_as3_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 + "Impl"; + } + + indent(f_service_) << "public class " << service_name_ << "Impl" << extends_client + << " implements " << service_name_ << " {" << endl; + indent_up(); + + indent(f_service_) << "public function " << service_name_ << "Impl" + << "(iprot:TProtocol, oprot:TProtocol=null)" << endl; + scope_up(f_service_); + if (extends.empty()) { + f_service_ << indent() << "iprot_ = iprot;" << endl; + f_service_ << indent() << "if (oprot == null) {" << endl; + indent_up(); + f_service_ << indent() << "oprot_ = iprot;" << endl; + indent_down(); + f_service_ << indent() << "} else {" << endl; + indent_up(); + f_service_ << indent() << "oprot_ = oprot;" << endl; + indent_down(); + f_service_ << indent() << "}"; + } else { + f_service_ << indent() << "super(iprot, oprot);" << endl; + } + scope_down(f_service_); + f_service_ << endl; + + if (extends.empty()) { + f_service_ << indent() << "protected var iprot_:TProtocol;" << endl << indent() + << "protected var oprot_:TProtocol;" << endl << endl << indent() + << "protected var seqid_:int;" << endl << endl; + + indent(f_service_) << "public function getInputProtocol():TProtocol" << endl; + scope_up(f_service_); + indent(f_service_) << "return this.iprot_;" << endl; + scope_down(f_service_); + f_service_ << endl; + + indent(f_service_) << "public function getOutputProtocol():TProtocol" << endl; + scope_up(f_service_); + indent(f_service_) << "return this.oprot_;" << endl; + scope_down(f_service_); + f_service_ << endl; + } + + // Generate client method implementations + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::const_iterator f_iter; + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + string funname = (*f_iter)->get_name(); + + // Open function + if (!(*f_iter)->is_oneway()) { + if ((*f_iter)->get_returntype()->is_void()) { + indent(f_service_) << "//function onError(Error):void;" << endl; + indent(f_service_) << "//function onSuccess():void;" << endl; + } else { + indent(f_service_) << "//function onError(Error):void;" << endl; + indent(f_service_) << "//function onSuccess(" << type_name((*f_iter)->get_returntype()) + << "):void;" << endl; + } + } + indent(f_service_) << "public " << function_signature(*f_iter) << endl; + scope_up(f_service_); + + // Get the struct of function call params + t_struct* arg_struct = (*f_iter)->get_arglist(); + + string argsname = (*f_iter)->get_name() + "_args"; + vector<t_field*>::const_iterator fld_iter; + const vector<t_field*>& fields = arg_struct->get_members(); + + // Serialize the request + f_service_ << indent() << "oprot_.writeMessageBegin(new TMessage(\"" << funname << "\", " + << ((*f_iter)->is_oneway() ? "TMessageType.ONEWAY" : "TMessageType.CALL") + << ", seqid_));" << endl << indent() << "var args:" << argsname << " = new " + << argsname << "();" << endl; + + for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) { + f_service_ << indent() << "args." << (*fld_iter)->get_name() << " = " + << (*fld_iter)->get_name() << ";" << endl; + } + + f_service_ << indent() << "args.write(oprot_);" << endl << indent() + << "oprot_.writeMessageEnd();" << endl; + + if ((*f_iter)->is_oneway()) { + f_service_ << indent() << "oprot_.getTransport().flush();" << endl; + } else { + f_service_ << indent() << "oprot_.getTransport().flush(function(error:Error):void {" << endl; + indent_up(); + f_service_ << indent() << "try {" << endl; + indent_up(); + string resultname = (*f_iter)->get_name() + "_result"; + f_service_ << indent() << "if (error != null) {" << endl << indent() + << " if (onError != null) onError(error);" << endl << indent() << " return;" + << endl << indent() << "}" << endl << indent() + << "var msg:TMessage = iprot_.readMessageBegin();" << endl << indent() + << "if (msg.type == TMessageType.EXCEPTION) {" << endl << indent() + << " var x:TApplicationError = TApplicationError.read(iprot_);" << endl + << indent() << " iprot_.readMessageEnd();" << endl << indent() + << " if (onError != null) onError(x);" << endl << indent() << " return;" << endl + << indent() << "}" << endl << indent() << "var result :" << resultname << " = new " + << resultname << "();" << endl << indent() << "result.read(iprot_);" << endl + << indent() << "iprot_.readMessageEnd();" << endl; + + // Careful, only return _result if not a void function + if (!(*f_iter)->get_returntype()->is_void()) { + f_service_ << indent() << "if (result." << generate_isset_check("success") << ") {" << endl + << indent() << " if (onSuccess != null) onSuccess(result.success);" << endl + << indent() << " return;" << endl << indent() << "}" << endl; + } + + t_struct* xs = (*f_iter)->get_xceptions(); + const std::vector<t_field*>& xceptions = xs->get_members(); + vector<t_field*>::const_iterator x_iter; + for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) { + f_service_ << indent() << "if (result." << (*x_iter)->get_name() << " != null) {" << endl + << indent() << " if (onError != null) onError(result." << (*x_iter)->get_name() + << ");" << endl << indent() << " return;" << endl << indent() << "}" << endl; + } + + // If you get here it's an exception, unless a void function + if ((*f_iter)->get_returntype()->is_void()) { + f_service_ << indent() << "if (onSuccess != null) onSuccess();" << endl << indent() + << "return;" << endl; + } else { + + f_service_ << indent() << "if (onError != null) onError(new " + "TApplicationError(TApplicationError.MISSING_RESULT, \"" + << (*f_iter)->get_name() << " failed: unknown result\"));" << endl; + } + indent_down(); + f_service_ << indent() << "} catch (e:TError) {" << endl << indent() + << " if (onError != null) onError(e);" << endl << indent() << "}" << endl; + + indent_down(); + indent(f_service_) << "});" << endl; + } + // Close function + scope_down(f_service_); + f_service_ << endl; + } + + indent_down(); + indent(f_service_) << "}" << endl; +} + +/** + * Generates a service server definition. + * + * @param tservice The service to generate a server for. + */ +void t_as3_generator::generate_service_server(t_service* tservice) { + // Generate the dispatch methods + vector<t_function*> functions = tservice->get_functions(); + vector<t_function*>::iterator f_iter; + + // 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 + indent(f_service_) << "public class " << service_name_ << "Processor" << extends_processor + << " implements TProcessor {" << endl; + indent_up(); + + indent(f_service_) << "public function " << service_name_ << "Processor(iface:" << service_name_ + << ")" << endl; + scope_up(f_service_); + if (!extends.empty()) { + f_service_ << indent() << "super(iface);" << endl; + } + f_service_ << indent() << "iface_ = iface;" << endl; + + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + f_service_ << indent() << "PROCESS_MAP[\"" << (*f_iter)->get_name() + << "\"] = " << (*f_iter)->get_name() << "();" << endl; + } + + scope_down(f_service_); + f_service_ << endl; + + f_service_ << indent() << "private var iface_:" << service_name_ << ";" << endl; + + if (extends.empty()) { + f_service_ << indent() << "protected const PROCESS_MAP:Dictionary = new Dictionary();" << endl; + } + + f_service_ << endl; + + // Generate the server implementation + string override = ""; + if (tservice->get_extends() != NULL) { + override = "override "; + } + indent(f_service_) << override + << "public function process(iprot:TProtocol, oprot:TProtocol):Boolean" << endl; + scope_up(f_service_); + + f_service_ << indent() << "var msg:TMessage = iprot.readMessageBegin();" << endl; + + // TODO(mcslee): validate message, was the seqid etc. legit? + // AS- If all method is oneway: + // do you have an oprot? + // do you you need nullcheck? + f_service_ + << indent() << "var fn:Function = PROCESS_MAP[msg.name];" << endl << indent() + << "if (fn == null) {" << endl << indent() << " TProtocolUtil.skip(iprot, TType.STRUCT);" + << endl << indent() << " iprot.readMessageEnd();" << endl << indent() + << " var x:TApplicationError = new TApplicationError(TApplicationError.UNKNOWN_METHOD, " + "\"Invalid method name: '\"+msg.name+\"'\");" << endl << indent() + << " oprot.writeMessageBegin(new TMessage(msg.name, TMessageType.EXCEPTION, msg.seqid));" + << endl << indent() << " x.write(oprot);" << endl << indent() << " oprot.writeMessageEnd();" + << endl << indent() << " oprot.getTransport().flush();" << endl << indent() + << " return true;" << endl << indent() << "}" << endl << indent() + << "fn.call(this,msg.seqid, iprot, oprot);" << endl; + + f_service_ << indent() << "return true;" << endl; + + scope_down(f_service_); + f_service_ << endl; + + // Generate the process subfunctions + for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { + generate_process_function(tservice, *f_iter); + } + + indent_down(); + indent(f_service_) << "}" << endl << endl; +} + +/** + * Generates a struct and helpers for a function. + * + * @param tfunction The function + */ +void t_as3_generator::generate_function_helpers(t_function* tfunction) { + if (tfunction->is_oneway()) { + return; + } + + t_struct result(program_, tfunction->get_name() + "_result"); + 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_as3_struct_definition(f_service_, &result, false, true, true); +} + +/** + * Generates a process function definition. + * + * @param tfunction The function to write a dispatcher for + */ +void t_as3_generator::generate_process_function(t_service* tservice, t_function* tfunction) { + (void)tservice; + // Open class + indent(f_service_) << "private function " << tfunction->get_name() << "():Function {" << endl; + indent_up(); + + // Open function + indent(f_service_) << "return function(seqid:int, iprot:TProtocol, oprot:TProtocol):void" << endl; + scope_up(f_service_); + + string argsname = tfunction->get_name() + "_args"; + string resultname = tfunction->get_name() + "_result"; + + f_service_ << indent() << "var args:" << argsname << " = new " << argsname << "();" << endl + << indent() << "args.read(iprot);" << endl << indent() << "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; + + // Declare result for non oneway function + if (!tfunction->is_oneway()) { + f_service_ << indent() << "var result:" << resultname << " = new " << resultname << "();" + << endl; + } + + // Try block for a function with exceptions + if (xceptions.size() > 0) { + f_service_ << indent() << "try {" << endl; + indent_up(); + } + + // 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 (tfunction->is_oneway()) { + 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." << (*f_iter)->get_name(); + } + f_service_ << ");" << endl; + } else { + f_service_ << "// sorry this operation is not supported yet" << endl; + f_service_ << indent() << "throw new Error(\"This is not yet supported\");" << endl; + } + + // Set isset on success field + if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void() + && !type_can_be_null(tfunction->get_returntype())) { + f_service_ << indent() << "result.set" << get_cap_name("success") << get_cap_name("isSet") + << "(true);" << endl; + } + + if (!tfunction->is_oneway() && xceptions.size() > 0) { + indent_down(); + f_service_ << indent() << "}"; + for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) { + f_service_ << " catch (" << (*x_iter)->get_name() << ":" + << type_name((*x_iter)->get_type(), false, false) << ") {" << endl; + if (!tfunction->is_oneway()) { + indent_up(); + f_service_ << indent() << "result." << (*x_iter)->get_name() << " = " + << (*x_iter)->get_name() << ";" << endl; + indent_down(); + f_service_ << indent() << "}"; + } else { + f_service_ << "}"; + } + } + f_service_ << " catch (th:Error) {" << endl; + indent_up(); + f_service_ << indent() << "trace(\"Internal error processing " << tfunction->get_name() + << "\", th);" << endl << indent() + << "var x:TApplicationError = new " + "TApplicationError(TApplicationError.INTERNAL_ERROR, \"Internal error processing " + << tfunction->get_name() << "\");" << endl << indent() + << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() + << "\", TMessageType.EXCEPTION, seqid));" << endl << indent() << "x.write(oprot);" + << endl << indent() << "oprot.writeMessageEnd();" << endl << indent() + << "oprot.getTransport().flush();" << endl << indent() << "return;" << endl; + indent_down(); + f_service_ << indent() << "}" << endl; + } + + // Shortcut out here for oneway functions + if (tfunction->is_oneway()) { + f_service_ << indent() << "return;" << endl; + scope_down(f_service_); + + // Close class + indent_down(); + f_service_ << indent() << "}" << endl << endl; + return; + } + + f_service_ << indent() << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() + << "\", TMessageType.REPLY, seqid));" << endl << indent() << "result.write(oprot);" + << endl << indent() << "oprot.writeMessageEnd();" << endl << indent() + << "oprot.getTransport().flush();" << endl; + + // Close function + scope_down(f_service_); + f_service_ << endl; + + // Close class + indent_down(); + f_service_ << indent() << "}" << endl << endl; +} + +/** + * Deserializes a field of any type. + * + * @param tfield The field + * @param prefix The variable name or container for this field + */ +void t_as3_generator::generate_deserialize_field(ofstream& out, t_field* tfield, string prefix) { + t_type* type = get_true_type(tfield->get_type()); + + if (type->is_void()) { + throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " + prefix + tfield->get_name(); + } + + string name = prefix + tfield->get_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 As3 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", + tfield->get_name().c_str(), + type_name(type).c_str()); + } +} + +/** + * Generates an unserializer for a struct, invokes read() + */ +void t_as3_generator::generate_deserialize_struct(ofstream& out, t_struct* tstruct, string prefix) { + out << indent() << prefix << " = new " << type_name(tstruct) << "();" << endl << indent() + << prefix << ".read(iprot);" << endl; +} + +/** + * Deserializes a container by reading its size and then iterating + */ +void t_as3_generator::generate_deserialize_container(ofstream& out, t_type* ttype, string prefix) { + 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) << "var " << obj << ":TMap = iprot.readMapBegin();" << endl; + } else if (ttype->is_set()) { + indent(out) << "var " << obj << ":TSet = iprot.readSetBegin();" << endl; + } else if (ttype->is_list()) { + indent(out) << "var " << obj << ":TList = iprot.readListBegin();" << endl; + } + + indent(out) << prefix << " = new " << type_name(ttype, false, true) + // size the collection correctly + << "(" + << ");" << endl; + + // For loop iterates over elements + string i = tmp("_i"); + indent(out) << "for (var " << i << ":int = 0; " << i << " < " << obj << ".size" + << "; " + << "++" << i << ")" << endl; + + 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_as3_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_as3_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_as3_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 << ".push(" << elem << ");" << endl; +} + +/** + * Serializes a field of any type. + * + * @param tfield The field to serialize + * @param prefix Name to prepend to field name + */ +void t_as3_generator::generate_serialize_field(ofstream& out, t_field* tfield, string prefix) { + t_type* type = get_true_type(tfield->get_type()); + + // Do nothing for void types + if (type->is_void()) { + throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " + prefix + tfield->get_name(); + } + + if (type->is_struct() || type->is_xception()) { + generate_serialize_struct(out, (t_struct*)type, prefix + tfield->get_name()); + } else if (type->is_container()) { + generate_serialize_container(out, type, prefix + tfield->get_name()); + } else if (type->is_base_type() || type->is_enum()) { + + string name = prefix + tfield->get_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 As3 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(), + tfield->get_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_as3_generator::generate_serialize_struct(ofstream& out, t_struct* tstruct, string prefix) { + (void)tstruct; + out << indent() << 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_as3_generator::generate_serialize_container(ofstream& out, t_type* ttype, string prefix) { + scope_up(out); + + if (ttype->is_map()) { + string iter = tmp("_key"); + string counter = tmp("_sizeCounter"); + indent(out) << "var " << counter << ":int = 0;" << endl; + indent(out) << "for (var " << iter << ":* in " << prefix << ") {" << endl; + indent(out) << " " << counter << +"++;" << endl; + indent(out) << "}" << endl; + + indent(out) << "oprot.writeMapBegin(new TMap(" << type_to_enum(((t_map*)ttype)->get_key_type()) + << ", " << type_to_enum(((t_map*)ttype)->get_val_type()) << ", " << counter << "));" + << endl; + } else if (ttype->is_set()) { + indent(out) << "oprot.writeSetBegin(new TSet(" << type_to_enum(((t_set*)ttype)->get_elem_type()) + << ", " << prefix << ".size));" << 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 << ")"; + } else if (ttype->is_set()) { + indent(out) << "for each (var " << iter << ":* in " << prefix << ".toArray())"; + } else if (ttype->is_list()) { + indent(out) << "for each (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_as3_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_as3_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_as3_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 As3 type name + * + * @param ttype The type + * @param container Is the type going inside a container? + * @return As3 type name, i.e. HashMap<Key,Value> + */ +string t_as3_generator::type_name(t_type* ttype, bool in_container, bool in_init) { + (void)in_init; + // In As3 typedefs are just resolved to their real type + ttype = get_true_type(ttype); + string prefix; + + if (ttype->is_base_type()) { + return base_type_name((t_base_type*)ttype, in_container); + } else if (ttype->is_enum()) { + return "int"; + } else if (ttype->is_map()) { + return "Dictionary"; + } else if (ttype->is_set()) { + return "Set"; + } else if (ttype->is_list()) { + return "Array"; + } + + // Check for namespacing + t_program* program = ttype->get_program(); + if (program != NULL && program != program_) { + string package = program->get_namespace("as3"); + if (!package.empty()) { + return package + "." + ttype->get_name(); + } + } + + return ttype->get_name(); +} + +/** + * Returns the AS3 type that corresponds to the thrift type. + * + * @param tbase The base type + * @param container Is it going in a As3 container? + */ +string t_as3_generator::base_type_name(t_base_type* type, bool in_container) { + (void)in_container; + 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 "ByteArray"; + } else { + return "String"; + } + case t_base_type::TYPE_BOOL: + return "Boolean"; + case t_base_type::TYPE_I8: + case t_base_type::TYPE_I16: + case t_base_type::TYPE_I32: + return "int"; + case t_base_type::TYPE_I64: + throw "i64 is not yet supported in as3"; + case t_base_type::TYPE_DOUBLE: + return "Number"; + default: + throw "compiler error: no As3 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_as3_generator::declare_field(t_field* tfield, bool init) { + // TODO(mcslee): do we ever need to initialize the field? + string result = "var " + tfield->get_name() + ":" + type_name(tfield->get_type()); + 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, tfield->get_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 += " = (double)0"; + break; + } + + } else if (ttype->is_enum()) { + result += " = 0"; + } else if (ttype->is_container()) { + result += " = new " + type_name(ttype, false, true) + "()"; + } else { + result += " = new " + type_name(ttype, false, true) + "()"; + ; + } + } + return result + ";"; +} + +/** + * Renders a function signature of the form 'type name(args)' + * + * @param tfunction Function definition + * @return String of rendered function definition + */ +string t_as3_generator::function_signature(t_function* tfunction, string prefix) { + std::string arguments = argument_list(tfunction->get_arglist()); + if (!tfunction->is_oneway()) { + if (arguments != "") { + arguments += ", "; + } + arguments += "onError:Function, onSuccess:Function"; + } + + std::string result = "function " + prefix + tfunction->get_name() + "(" + arguments + "):void"; + return result; +} + +/** + * Renders a comma separated field list, with type names + */ +string t_as3_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 += ", "; + } + result += (*f_iter)->get_name() + ":" + type_name((*f_iter)->get_type()); + } + return result; +} + +/** + * Converts the parse type to a C++ enum string for the given type. + */ +string t_as3_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(); +} + +/** + * Applies the correct style to a string based on the value of nocamel_style_ + */ +std::string t_as3_generator::get_cap_name(std::string name) { + name[0] = toupper(name[0]); + return name; +} + +string t_as3_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 As3Doc comment if the provided object has a doc in Thrift + */ +void t_as3_generator::generate_as3_doc(ofstream& out, t_doc* tdoc) { + if (tdoc->has_doc()) { + generate_docstring_comment(out, "/**\n", " * ", tdoc->get_doc(), " */\n"); + } +} + +/** + * Emits a As3Doc comment if the provided function object has a doc in Thrift + */ +void t_as3_generator::generate_as3_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; + ss << "\n@param " << p->get_name(); + if (p->has_doc()) { + ss << " " << p->get_doc(); + } + } + generate_docstring_comment(out, "/**\n", " * ", ss.str(), " */\n"); + } +} + +std::string t_as3_generator::generate_isset_check(t_field* field) { + return generate_isset_check(field->get_name()); +} + +std::string t_as3_generator::generate_isset_check(std::string field_name) { + return "is" + get_cap_name("set") + get_cap_name(field_name) + "()"; +} + +void t_as3_generator::generate_isset_set(ofstream& out, t_field* field) { + if (!type_can_be_null(field->get_type())) { + indent(out) << "this.__isset_" << field->get_name() << " = true;" << endl; + } +} + +std::string t_as3_generator::get_enum_class_name(t_type* type) { + string package = ""; + t_program* program = type->get_program(); + if (program != NULL && program != program_) { + package = program->get_namespace("as3") + "."; + } + return package + type->get_name(); +} + +THRIFT_REGISTER_GENERATOR( + as3, + "AS3", + " bindable: Add [bindable] metadata to all the struct classes.\n") |