| /* |
| * 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 <map> |
| #include <string> |
| #include <fstream> |
| #include <iostream> |
| #include <vector> |
| #include <list> |
| |
| #include <stdlib.h> |
| #include <sys/stat.h> |
| #include <sstream> |
| #include "platform.h" |
| #include "version.h" |
| |
| using std::map; |
| using std::ofstream; |
| using std::ostringstream; |
| using std::string; |
| using std::stringstream; |
| using std::vector; |
| |
| static const string endl = "\n"; // avoid ostream << std::endl flushes |
| |
| #include "t_oop_generator.h" |
| |
| |
| /** |
| * JS code generator. |
| */ |
| class t_js_generator : public t_oop_generator { |
| public: |
| t_js_generator(t_program* program, |
| const std::map<std::string, std::string>& parsed_options, |
| const std::string& option_string) |
| : t_oop_generator(program) { |
| (void)option_string; |
| |
| std::map<std::string, std::string>::const_iterator iter; |
| |
| iter = parsed_options.find("node"); |
| gen_node_ = (iter != parsed_options.end()); |
| |
| iter = parsed_options.find("jquery"); |
| gen_jquery_ = (iter != parsed_options.end()); |
| |
| if (!gen_node_) { |
| iter = parsed_options.find("ts"); |
| gen_ts_ = (iter != parsed_options.end()); |
| } else { |
| gen_ts_ = false; |
| } |
| |
| if (gen_node_ && gen_jquery_) { |
| throw "Invalid switch: [-gen js:node,jquery] options not compatible, try: [-gen js:node -gen " |
| "js:jquery]"; |
| } |
| |
| if (gen_node_) { |
| out_dir_base_ = "gen-nodejs"; |
| } else { |
| out_dir_base_ = "gen-js"; |
| } |
| |
| escape_['\''] = "\\'"; |
| } |
| |
| /** |
| * Init and close methods |
| */ |
| |
| void init_generator(); |
| void close_generator(); |
| |
| /** |
| * Program-level generation functions |
| */ |
| |
| void generate_typedef(t_typedef* ttypedef); |
| void generate_enum(t_enum* tenum); |
| void generate_const(t_const* tconst); |
| void generate_struct(t_struct* tstruct); |
| void generate_xception(t_struct* txception); |
| void generate_service(t_service* tservice); |
| |
| std::string render_recv_throw(std::string var); |
| std::string render_recv_return(std::string var); |
| |
| std::string render_const_value(t_type* type, t_const_value* value); |
| |
| /** |
| * Structs! |
| */ |
| void generate_js_struct(t_struct* tstruct, bool is_exception); |
| void generate_js_struct_definition(std::ofstream& out, |
| t_struct* tstruct, |
| bool is_xception = false, |
| bool is_exported = true); |
| void generate_js_struct_reader(std::ofstream& out, t_struct* tstruct); |
| void generate_js_struct_writer(std::ofstream& out, t_struct* tstruct); |
| void generate_js_function_helpers(t_function* tfunction); |
| |
| /** |
| * Service-level generation functions |
| */ |
| void generate_service_helpers(t_service* tservice); |
| void generate_service_interface(t_service* tservice); |
| void generate_service_rest(t_service* tservice); |
| void generate_service_client(t_service* tservice); |
| void generate_service_processor(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 = "", |
| bool inclass = false); |
| |
| 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 kiter, |
| std::string viter); |
| |
| void generate_serialize_set_element(std::ofstream& out, t_set* tmap, std::string iter); |
| |
| void generate_serialize_list_element(std::ofstream& out, t_list* tlist, std::string iter); |
| |
| /** |
| * Helper rendering functions |
| */ |
| |
| std::string js_includes(); |
| std::string render_includes(); |
| std::string declare_field(t_field* tfield, bool init = false, bool obj = false); |
| std::string function_signature(t_function* tfunction, |
| std::string prefix = "", |
| bool include_callback = false); |
| std::string argument_list(t_struct* tstruct, bool include_callback = false); |
| std::string type_to_enum(t_type* ttype); |
| |
| std::string autogen_comment() { |
| return std::string("//\n") + "// Autogenerated by Thrift Compiler (" + THRIFT_VERSION + ")\n" |
| + "//\n" + "// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING\n" |
| + "//\n"; |
| } |
| |
| t_type* get_contained_type(t_type* t); |
| |
| std::vector<std::string> js_namespace_pieces(t_program* p) { |
| std::string ns = p->get_namespace("js"); |
| |
| std::string::size_type loc; |
| std::vector<std::string> pieces; |
| |
| if (ns.size() > 0) { |
| while ((loc = ns.find(".")) != std::string::npos) { |
| pieces.push_back(ns.substr(0, loc)); |
| ns = ns.substr(loc + 1); |
| } |
| } |
| |
| if (ns.size() > 0) { |
| pieces.push_back(ns); |
| } |
| |
| return pieces; |
| } |
| |
| std::string js_type_namespace(t_program* p) { |
| if (gen_node_) { |
| if (p != NULL && p != program_) { |
| return p->get_name() + "_ttypes."; |
| } |
| return "ttypes."; |
| } |
| return js_namespace(p); |
| } |
| |
| std::string js_export_namespace(t_program* p) { |
| if (gen_node_) { |
| return "exports."; |
| } |
| return js_namespace(p); |
| } |
| |
| std::string js_namespace(t_program* p) { |
| std::string ns = p->get_namespace("js"); |
| if (ns.size() > 0) { |
| ns += "."; |
| } |
| |
| return ns; |
| } |
| |
| /** |
| * TypeScript Definition File helper functions |
| */ |
| |
| string ts_function_signature(t_function* tfunction, bool include_callback); |
| string ts_get_type(t_type* type); |
| |
| /** |
| * Special indentation for TypeScript Definitions because of the module. |
| * Returns the normal indentation + " " if a module was defined. |
| * @return string |
| */ |
| string ts_indent() { return indent() + (!ts_module_.empty() ? " " : ""); } |
| |
| /** |
| * Returns "declare " if no module was defined. |
| * @return string |
| */ |
| string ts_declare() { return (ts_module_.empty() ? "declare " : ""); } |
| |
| /** |
| * Returns "?" if the given field is optional. |
| * @param t_field The field to check |
| * @return string |
| */ |
| string ts_get_req(t_field* field) { return (field->get_req() == t_field::T_OPTIONAL ? "?" : ""); } |
| |
| /** |
| * Returns the documentation, if the provided documentable object has one. |
| * @param t_doc The object to get the documentation from |
| * @return string The documentation |
| */ |
| string ts_print_doc(t_doc* tdoc) { |
| string result = endl; |
| |
| if (tdoc->has_doc()) { |
| std::stringstream doc(tdoc->get_doc()); |
| string item; |
| |
| result += ts_indent() + "/**" + endl; |
| while (std::getline(doc, item)) { |
| result += ts_indent() + " * " + item + endl; |
| } |
| result += ts_indent() + " */" + endl; |
| } |
| return result; |
| } |
| |
| private: |
| /** |
| * True if we should generate NodeJS-friendly RPC services. |
| */ |
| bool gen_node_; |
| |
| /** |
| * True if we should generate services that use jQuery ajax (async/sync). |
| */ |
| bool gen_jquery_; |
| |
| /** |
| * True if we should generate a TypeScript Definition File for each service. |
| */ |
| bool gen_ts_; |
| |
| /** |
| * The name of the defined module(s), for TypeScript Definition Files. |
| */ |
| string ts_module_; |
| |
| /** |
| * File streams |
| */ |
| std::ofstream f_types_; |
| std::ofstream f_service_; |
| std::ofstream f_types_ts_; |
| std::ofstream f_service_ts_; |
| }; |
| |
| /** |
| * Prepares for file generation by opening up the necessary file output |
| * streams. |
| * |
| * @param tprogram The program to generate |
| */ |
| void t_js_generator::init_generator() { |
| // Make output directory |
| MKDIR(get_out_dir().c_str()); |
| |
| string outdir = get_out_dir(); |
| |
| // Make output file(s) |
| string f_types_name = outdir + program_->get_name() + "_types.js"; |
| f_types_.open(f_types_name.c_str()); |
| |
| if (gen_ts_) { |
| string f_types_ts_name = outdir + program_->get_name() + "_types.d.ts"; |
| f_types_ts_.open(f_types_ts_name.c_str()); |
| } |
| |
| // Print header |
| f_types_ << autogen_comment() << js_includes() << endl << render_includes() << endl; |
| |
| if (gen_ts_) { |
| f_types_ts_ << autogen_comment() << endl; |
| } |
| |
| if (gen_node_) { |
| f_types_ << "var ttypes = module.exports = {};" << endl; |
| } |
| |
| string pns; |
| |
| // setup the namespace |
| // TODO should the namespace just be in the directory structure for node? |
| vector<string> ns_pieces = js_namespace_pieces(program_); |
| if (ns_pieces.size() > 0) { |
| for (size_t i = 0; i < ns_pieces.size(); ++i) { |
| pns += ((i == 0) ? "" : ".") + ns_pieces[i]; |
| f_types_ << "if (typeof " << pns << " === 'undefined') {" << endl; |
| f_types_ << " " << pns << " = {};" << endl; |
| f_types_ << "}" << endl; |
| } |
| if (gen_ts_) { |
| ts_module_ = pns; |
| f_types_ts_ << "declare module " << ts_module_ << " {"; |
| } |
| } |
| } |
| |
| /** |
| * Prints standard js imports |
| */ |
| string t_js_generator::js_includes() { |
| if (gen_node_) { |
| return string( |
| "var thrift = require('thrift');\n" |
| "var Thrift = thrift.Thrift;\n" |
| "var Q = thrift.Q;\n"); |
| } |
| |
| return ""; |
| } |
| |
| /** |
| * Renders all the imports necessary for including another Thrift program |
| */ |
| string t_js_generator::render_includes() { |
| string result = ""; |
| |
| if (gen_node_) { |
| const vector<t_program*>& includes = program_->get_includes(); |
| for (size_t i = 0; i < includes.size(); ++i) { |
| result += "var " + includes[i]->get_name() + "_ttypes = require('./" + includes[i]->get_name() |
| + "_types')\n"; |
| } |
| if (includes.size() > 0) { |
| result += "\n"; |
| } |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Close up (or down) some filez. |
| */ |
| void t_js_generator::close_generator() { |
| // Close types file(s) |
| |
| f_types_.close(); |
| |
| if (gen_ts_) { |
| if (!ts_module_.empty()) { |
| f_types_ts_ << "}"; |
| } |
| f_types_ts_.close(); |
| } |
| } |
| |
| /** |
| * Generates a typedef. This is not done in JS, types are all implicit. |
| * |
| * @param ttypedef The type definition |
| */ |
| void t_js_generator::generate_typedef(t_typedef* ttypedef) { |
| (void)ttypedef; |
| } |
| |
| /** |
| * Generates code for an enumerated type. Since define is expensive to lookup |
| * in JS, we use a global array for this. |
| * |
| * @param tenum The enumeration |
| */ |
| void t_js_generator::generate_enum(t_enum* tenum) { |
| f_types_ << js_type_namespace(tenum->get_program()) << tenum->get_name() << " = {" << endl; |
| |
| if (gen_ts_) { |
| f_types_ts_ << ts_print_doc(tenum) << ts_indent() << ts_declare() << "enum " |
| << tenum->get_name() << " {" << endl; |
| } |
| |
| indent_up(); |
| |
| 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(); |
| if (gen_ts_) { |
| f_types_ts_ << ts_indent() << (*c_iter)->get_name() << " = " << value << "," << endl; |
| // add 'value: key' in addition to 'key: value' for TypeScript enums |
| f_types_ << indent() << "'" << value << "' : '" << (*c_iter)->get_name() << "'," << endl; |
| } |
| f_types_ << indent() << "'" << (*c_iter)->get_name() << "' : " << value; |
| if (c_iter != constants.end() - 1) { |
| f_types_ << ","; |
| } |
| f_types_ << endl; |
| } |
| |
| indent_down(); |
| |
| f_types_ << "};" << endl; |
| |
| if (gen_ts_) { |
| f_types_ts_ << ts_indent() << "}" << endl; |
| } |
| } |
| |
| /** |
| * Generate a constant value |
| */ |
| void t_js_generator::generate_const(t_const* tconst) { |
| t_type* type = tconst->get_type(); |
| string name = tconst->get_name(); |
| t_const_value* value = tconst->get_value(); |
| |
| f_types_ << js_type_namespace(program_) << name << " = "; |
| f_types_ << render_const_value(type, value) << ";" << endl; |
| |
| if (gen_ts_) { |
| f_types_ts_ << ts_print_doc(tconst) << ts_indent() << ts_declare() << "var " << name << ": " |
| << ts_get_type(type) << ";" << endl; |
| } |
| } |
| |
| /** |
| * Prints the value of a constant with the given type. Note that type checking |
| * is NOT performed in this function as it is always run beforehand using the |
| * validate_types method in main.cc |
| */ |
| string t_js_generator::render_const_value(t_type* type, t_const_value* value) { |
| std::ostringstream out; |
| |
| 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_STRING: |
| out << "'" << get_escaped_string(value) << "'"; |
| break; |
| case t_base_type::TYPE_BOOL: |
| out << (value->get_integer() > 0 ? "true" : "false"); |
| break; |
| case t_base_type::TYPE_BYTE: |
| case t_base_type::TYPE_I16: |
| case t_base_type::TYPE_I32: |
| case t_base_type::TYPE_I64: |
| out << value->get_integer(); |
| break; |
| case t_base_type::TYPE_DOUBLE: |
| if (value->get_type() == t_const_value::CV_INTEGER) { |
| out << value->get_integer(); |
| } else { |
| out << value->get_double(); |
| } |
| break; |
| default: |
| throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase); |
| } |
| } else if (type->is_enum()) { |
| out << value->get_integer(); |
| } else if (type->is_struct() || type->is_xception()) { |
| out << "new " << js_type_namespace(type->get_program()) << type->get_name() << "({" << endl; |
| indent_up(); |
| const vector<t_field*>& fields = ((t_struct*)type)->get_members(); |
| vector<t_field*>::const_iterator f_iter; |
| const map<t_const_value*, t_const_value*>& val = value->get_map(); |
| map<t_const_value*, t_const_value*>::const_iterator v_iter; |
| for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) { |
| t_type* field_type = NULL; |
| for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { |
| if ((*f_iter)->get_name() == v_iter->first->get_string()) { |
| field_type = (*f_iter)->get_type(); |
| } |
| } |
| if (field_type == NULL) { |
| throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string(); |
| } |
| if (v_iter != val.begin()) |
| out << ","; |
| out << render_const_value(g_type_string, v_iter->first); |
| out << " : "; |
| out << render_const_value(field_type, v_iter->second); |
| } |
| |
| out << "})"; |
| } else if (type->is_map()) { |
| t_type* ktype = ((t_map*)type)->get_key_type(); |
| |
| t_type* vtype = ((t_map*)type)->get_val_type(); |
| out << "{" << endl; |
| indent_up(); |
| |
| 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) { |
| if (v_iter != val.begin()) |
| out << "," << endl; |
| |
| out << indent() << render_const_value(ktype, v_iter->first); |
| |
| out << " : "; |
| out << render_const_value(vtype, v_iter->second); |
| } |
| |
| indent_down(); |
| out << endl << "}"; |
| } else if (type->is_list() || type->is_set()) { |
| t_type* etype; |
| if (type->is_list()) { |
| etype = ((t_list*)type)->get_elem_type(); |
| } else { |
| etype = ((t_set*)type)->get_elem_type(); |
| } |
| out << "["; |
| 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) { |
| if (v_iter != val.begin()) |
| out << ","; |
| out << render_const_value(etype, *v_iter); |
| } |
| out << "]"; |
| } |
| return out.str(); |
| } |
| |
| /** |
| * Make a struct |
| */ |
| void t_js_generator::generate_struct(t_struct* tstruct) { |
| generate_js_struct(tstruct, false); |
| } |
| |
| /** |
| * Generates a struct definition for a thrift exception. Basically the same |
| * as a struct but extends the Exception class. |
| * |
| * @param txception The struct definition |
| */ |
| void t_js_generator::generate_xception(t_struct* txception) { |
| generate_js_struct(txception, true); |
| } |
| |
| /** |
| * Structs can be normal or exceptions. |
| */ |
| void t_js_generator::generate_js_struct(t_struct* tstruct, bool is_exception) { |
| generate_js_struct_definition(f_types_, tstruct, is_exception); |
| } |
| |
| /** |
| * Return type of contained elements for a container type. For maps |
| * this is type of value (keys are always strings in js) |
| */ |
| t_type* t_js_generator::get_contained_type(t_type* t) { |
| t_type* etype; |
| if (t->is_list()) { |
| etype = ((t_list*)t)->get_elem_type(); |
| } else if (t->is_set()) { |
| etype = ((t_set*)t)->get_elem_type(); |
| } else { |
| etype = ((t_map*)t)->get_val_type(); |
| } |
| return etype; |
| } |
| |
| /** |
| * Generates a struct definition for a thrift data type. This is nothing in JS |
| * where the objects are all just associative arrays (unless of course we |
| * decide to start using objects for them...) |
| * |
| * @param tstruct The struct definition |
| */ |
| void t_js_generator::generate_js_struct_definition(ofstream& out, |
| t_struct* tstruct, |
| bool is_exception, |
| bool is_exported) { |
| const vector<t_field*>& members = tstruct->get_members(); |
| vector<t_field*>::const_iterator m_iter; |
| |
| if (gen_node_) { |
| if (is_exported) { |
| out << js_namespace(tstruct->get_program()) << tstruct->get_name() << " = " |
| << "module.exports." << tstruct->get_name() << " = function(args) {" << endl; |
| } else { |
| out << js_namespace(tstruct->get_program()) << tstruct->get_name() << " = function(args) {" |
| << endl; |
| } |
| } else { |
| out << js_namespace(tstruct->get_program()) << tstruct->get_name() << " = function(args) {" |
| << endl; |
| if (gen_ts_) { |
| f_types_ts_ << ts_print_doc(tstruct) << ts_indent() << ts_declare() << "class " |
| << tstruct->get_name() << (is_exception ? " extends Thrift.TException" : "") |
| << " {" << endl; |
| } |
| } |
| |
| indent_up(); |
| |
| if (gen_node_ && is_exception) { |
| out << indent() << "Thrift.TException.call(this, \"" << js_namespace(tstruct->get_program()) |
| << tstruct->get_name() << "\")" << endl; |
| out << indent() << "this.name = \"" << js_namespace(tstruct->get_program()) |
| << tstruct->get_name() << "\"" << endl; |
| } |
| |
| // members with arguments |
| for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { |
| string dval = declare_field(*m_iter, false, true); |
| t_type* t = get_true_type((*m_iter)->get_type()); |
| if ((*m_iter)->get_value() != NULL && !(t->is_struct() || t->is_xception())) { |
| dval = render_const_value((*m_iter)->get_type(), (*m_iter)->get_value()); |
| out << indent() << "this." << (*m_iter)->get_name() << " = " << dval << ";" << endl; |
| } else { |
| out << indent() << dval << ";" << endl; |
| } |
| if (gen_ts_) { |
| f_types_ts_ << ts_indent() << (*m_iter)->get_name() << ": " |
| << ts_get_type((*m_iter)->get_type()) << ";" << endl; |
| } |
| } |
| |
| // Generate constructor from array |
| if (members.size() > 0) { |
| |
| 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 && (t->is_struct() || t->is_xception())) { |
| indent(out) << "this." << (*m_iter)->get_name() << " = " |
| << render_const_value(t, (*m_iter)->get_value()) << ";" << endl; |
| } |
| } |
| |
| // Early returns for exceptions |
| for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { |
| t_type* t = get_true_type((*m_iter)->get_type()); |
| if (t->is_xception()) { |
| out << indent() << "if (args instanceof " << js_type_namespace(t->get_program()) |
| << t->get_name() << ") {" << endl << indent() << indent() << "this." |
| << (*m_iter)->get_name() << " = args;" << endl << indent() << indent() << "return;" |
| << endl << indent() << "}" << endl; |
| } |
| } |
| |
| out << indent() << "if (args) {" << endl; |
| if (gen_ts_) { |
| f_types_ts_ << endl << ts_indent() << "constructor(args?: { "; |
| } |
| |
| for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) { |
| t_type* t = get_true_type((*m_iter)->get_type()); |
| out << indent() << indent() << "if (args." << (*m_iter)->get_name() << " !== undefined && args." << (*m_iter)->get_name() << " !== null) {" |
| << endl << indent() << indent() << indent() << "this." << (*m_iter)->get_name(); |
| |
| if (t->is_struct()) { |
| out << (" = new " + js_type_namespace(t->get_program()) + t->get_name() + |
| "(args."+(*m_iter)->get_name() +");"); |
| out << endl; |
| } else if (t->is_container()) { |
| t_type* etype = get_contained_type(t); |
| string copyFunc = t->is_map() ? "Thrift.copyMap" : "Thrift.copyList"; |
| string type_list = ""; |
| |
| while (etype->is_container()) { |
| if (type_list.length() > 0) { |
| type_list += ", "; |
| } |
| type_list += etype->is_map() ? "Thrift.copyMap" : "Thrift.copyList"; |
| etype = get_contained_type(etype); |
| } |
| |
| if (etype->is_struct()) { |
| if (type_list.length() > 0) { |
| type_list += ", "; |
| } |
| type_list += js_type_namespace(etype->get_program()) + etype->get_name(); |
| } |
| else { |
| if (type_list.length() > 0) { |
| type_list += ", "; |
| } |
| type_list += "null"; |
| } |
| |
| out << (" = " + copyFunc + "(args." + (*m_iter)->get_name() + |
| ", [" + type_list + "]);"); |
| out << endl; |
| } else { |
| out << " = args." << (*m_iter)->get_name() << ";" << endl; |
| } |
| |
| if (!(*m_iter)->get_req()) { |
| out << indent() << indent() << "} else {" << endl << indent() << indent() << indent() |
| << "throw new Thrift.TProtocolException(Thrift.TProtocolExceptionType.UNKNOWN, " |
| "'Required field " << (*m_iter)->get_name() << " is unset!');" << endl; |
| } |
| out << indent() << indent() << "}" << endl; |
| if (gen_ts_) { |
| f_types_ts_ << (*m_iter)->get_name() << ts_get_req(*m_iter) << ": " |
| << ts_get_type((*m_iter)->get_type()) << "; "; |
| } |
| } |
| |
| out << indent() << "}" << endl; |
| if (gen_ts_) { |
| f_types_ts_ << "});" << endl; |
| } |
| } |
| |
| indent_down(); |
| out << "};" << endl; |
| if (gen_ts_) { |
| f_types_ts_ << ts_indent() << "}" << endl; |
| } |
| |
| if (is_exception) { |
| out << "Thrift.inherits(" << js_namespace(tstruct->get_program()) << tstruct->get_name() |
| << ", Thrift.TException);" << endl; |
| out << js_namespace(tstruct->get_program()) << tstruct->get_name() << ".prototype.name = '" |
| << tstruct->get_name() << "';" << endl; |
| } else { |
| // init prototype |
| out << js_namespace(tstruct->get_program()) << tstruct->get_name() << ".prototype = {};" |
| << endl; |
| } |
| |
| generate_js_struct_reader(out, tstruct); |
| generate_js_struct_writer(out, tstruct); |
| } |
| |
| /** |
| * Generates the read() method for a struct |
| */ |
| void t_js_generator::generate_js_struct_reader(ofstream& out, t_struct* tstruct) { |
| const vector<t_field*>& fields = tstruct->get_members(); |
| vector<t_field*>::const_iterator f_iter; |
| |
| out << js_namespace(tstruct->get_program()) << tstruct->get_name() |
| << ".prototype.read = function(input) {" << endl; |
| |
| indent_up(); |
| |
| indent(out) << "input.readStructBegin();" << endl; |
| |
| // Loop over reading in fields |
| indent(out) << "while (true)" << endl; |
| |
| scope_up(out); |
| |
| indent(out) << "var ret = input.readFieldBegin();" << endl; |
| indent(out) << "var fname = ret.fname;" << endl; |
| indent(out) << "var ftype = ret.ftype;" << endl; |
| indent(out) << "var fid = ret.fid;" << endl; |
| |
| // Check for field STOP marker and break |
| indent(out) << "if (ftype == Thrift.Type.STOP) {" << endl; |
| indent_up(); |
| indent(out) << "break;" << endl; |
| indent_down(); |
| indent(out) << "}" << endl; |
| if (!fields.empty()) { |
| // Switch statement on the field we are reading |
| indent(out) << "switch (fid)" << endl; |
| |
| scope_up(out); |
| |
| // Generate deserialization code for known cases |
| for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { |
| |
| indent(out) << "case " << (*f_iter)->get_key() << ":" << endl; |
| indent(out) << "if (ftype == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl; |
| |
| indent_up(); |
| generate_deserialize_field(out, *f_iter, "this."); |
| indent_down(); |
| |
| indent(out) << "} else {" << endl; |
| |
| indent(out) << " input.skip(ftype);" << endl; |
| |
| out << indent() << "}" << endl << indent() << "break;" << endl; |
| } |
| if (fields.size() == 1) { |
| // pseudo case to make jslint happy |
| indent(out) << "case 0:" << endl; |
| indent(out) << " input.skip(ftype);" << endl; |
| indent(out) << " break;" << endl; |
| } |
| // In the default case we skip the field |
| indent(out) << "default:" << endl; |
| indent(out) << " input.skip(ftype);" << endl; |
| |
| scope_down(out); |
| } else { |
| indent(out) << "input.skip(ftype);" << endl; |
| } |
| |
| indent(out) << "input.readFieldEnd();" << endl; |
| |
| scope_down(out); |
| |
| indent(out) << "input.readStructEnd();" << endl; |
| |
| indent(out) << "return;" << endl; |
| |
| indent_down(); |
| out << indent() << "};" << endl << endl; |
| } |
| |
| /** |
| * Generates the write() method for a struct |
| */ |
| void t_js_generator::generate_js_struct_writer(ofstream& out, t_struct* tstruct) { |
| string name = tstruct->get_name(); |
| const vector<t_field*>& fields = tstruct->get_members(); |
| vector<t_field*>::const_iterator f_iter; |
| |
| out << js_namespace(tstruct->get_program()) << tstruct->get_name() |
| << ".prototype.write = function(output) {" << endl; |
| |
| indent_up(); |
| |
| indent(out) << "output.writeStructBegin('" << name << "');" << endl; |
| |
| for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { |
| out << indent() << "if (this." << (*f_iter)->get_name() << " !== null && this." |
| << (*f_iter)->get_name() << " !== undefined) {" << endl; |
| indent_up(); |
| |
| indent(out) << "output.writeFieldBegin(" |
| << "'" << (*f_iter)->get_name() << "', " << type_to_enum((*f_iter)->get_type()) |
| << ", " << (*f_iter)->get_key() << ");" << endl; |
| |
| // Write field contents |
| generate_serialize_field(out, *f_iter, "this."); |
| |
| indent(out) << "output.writeFieldEnd();" << endl; |
| |
| indent_down(); |
| indent(out) << "}" << endl; |
| } |
| |
| out << indent() << "output.writeFieldStop();" << endl << indent() << "output.writeStructEnd();" |
| << endl; |
| |
| out << indent() << "return;" << endl; |
| |
| indent_down(); |
| out << indent() << "};" << endl << endl; |
| } |
| |
| /** |
| * Generates a thrift service. |
| * |
| * @param tservice The service definition |
| */ |
| void t_js_generator::generate_service(t_service* tservice) { |
| string f_service_name = get_out_dir() + service_name_ + ".js"; |
| f_service_.open(f_service_name.c_str()); |
| |
| if (gen_ts_) { |
| string f_service_ts_name = get_out_dir() + service_name_ + ".d.ts"; |
| f_service_ts_.open(f_service_ts_name.c_str()); |
| } |
| |
| f_service_ << autogen_comment() << js_includes() << endl << render_includes() << endl; |
| |
| if (gen_ts_) { |
| if (tservice->get_extends() != NULL) { |
| f_service_ts_ << "/// <reference path=\"" << tservice->get_extends()->get_name() |
| << ".d.ts\" />" << endl; |
| } |
| f_service_ts_ << autogen_comment() << endl; |
| if (!ts_module_.empty()) { |
| f_service_ts_ << "declare module " << ts_module_ << " {"; |
| } |
| } |
| |
| if (gen_node_) { |
| if (tservice->get_extends() != NULL) { |
| f_service_ << "var " << tservice->get_extends()->get_name() << " = require('./" |
| << tservice->get_extends()->get_name() << "')" << endl << "var " |
| << tservice->get_extends()->get_name() |
| << "Client = " << tservice->get_extends()->get_name() << ".Client" << endl |
| << "var " << tservice->get_extends()->get_name() |
| << "Processor = " << tservice->get_extends()->get_name() << ".Processor" << endl; |
| } |
| |
| f_service_ << "var ttypes = require('./" + program_->get_name() + "_types');" << endl; |
| } |
| |
| generate_service_helpers(tservice); |
| generate_service_interface(tservice); |
| generate_service_client(tservice); |
| |
| if (gen_node_) { |
| generate_service_processor(tservice); |
| } |
| |
| f_service_.close(); |
| if (gen_ts_) { |
| if (!ts_module_.empty()) { |
| f_service_ts_ << "}"; |
| } |
| f_service_ts_.close(); |
| } |
| } |
| |
| /** |
| * Generates a service server definition. |
| * |
| * @param tservice The service to generate a server for. |
| */ |
| void t_js_generator::generate_service_processor(t_service* tservice) { |
| vector<t_function*> functions = tservice->get_functions(); |
| vector<t_function*>::iterator f_iter; |
| |
| f_service_ << js_namespace(tservice->get_program()) << service_name_ << "Processor = " |
| << "exports.Processor = function(handler) "; |
| |
| scope_up(f_service_); |
| |
| f_service_ << indent() << "this._handler = handler" << endl; |
| |
| scope_down(f_service_); |
| |
| if (tservice->get_extends() != NULL) { |
| indent(f_service_) << "Thrift.inherits(" << js_namespace(tservice->get_program()) |
| << service_name_ << "Processor, " << tservice->get_extends()->get_name() |
| << "Processor)" << endl; |
| } |
| |
| // Generate the server implementation |
| indent(f_service_) << js_namespace(tservice->get_program()) << service_name_ |
| << "Processor.prototype.process = function(input, output) "; |
| |
| scope_up(f_service_); |
| |
| f_service_ << indent() << "var r = input.readMessageBegin();" << endl << indent() |
| << "if (this['process_' + r.fname]) {" << endl << indent() |
| << " return this['process_' + r.fname].call(this, r.rseqid, input, output);" << endl |
| << indent() << "} else {" << endl << indent() << " input.skip(Thrift.Type.STRUCT);" |
| << endl << indent() << " input.readMessageEnd();" << endl << indent() |
| << " var x = new " |
| "Thrift.TApplicationException(Thrift.TApplicationExceptionType.UNKNOWN_METHOD, " |
| "'Unknown function ' + r.fname);" << endl << indent() |
| << " output.writeMessageBegin(r.fname, Thrift.MessageType.EXCEPTION, r.rseqid);" |
| << endl << indent() << " x.write(output);" << endl << indent() |
| << " output.writeMessageEnd();" << endl << indent() << " output.flush();" << endl |
| << indent() << "}" << 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); |
| } |
| } |
| |
| /** |
| * Generates a process function definition. |
| * |
| * @param tfunction The function to write a dispatcher for |
| */ |
| void t_js_generator::generate_process_function(t_service* tservice, t_function* tfunction) { |
| indent(f_service_) << js_namespace(tservice->get_program()) << service_name_ |
| << "Processor.prototype.process_" + tfunction->get_name() |
| + " = function(seqid, input, output) "; |
| |
| scope_up(f_service_); |
| |
| string argsname = js_namespace(program_) + service_name_ + "_" + tfunction->get_name() + "_args"; |
| string resultname = js_namespace(program_) + service_name_ + "_" + tfunction->get_name() |
| + "_result"; |
| |
| f_service_ << indent() << "var args = new " << argsname << "();" << endl << indent() |
| << "args.read(input);" << endl << indent() << "input.readMessageEnd();" << endl; |
| |
| // 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; |
| |
| // Shortcut out here for oneway functions |
| if (tfunction->is_oneway()) { |
| indent(f_service_) << "this._handler." << 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; |
| scope_down(f_service_); |
| f_service_ << endl; |
| return; |
| } |
| |
| f_service_ << indent() << "if (this._handler." << tfunction->get_name() |
| << ".length === " << fields.size() << ") {" << endl; |
| indent_up(); |
| indent(f_service_) << "Q.fcall(this._handler." << tfunction->get_name(); |
| |
| for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { |
| f_service_ << ", args." << (*f_iter)->get_name(); |
| } |
| |
| f_service_ << ")" << endl; |
| indent_up(); |
| indent(f_service_) << ".then(function(result) {" << endl; |
| indent_up(); |
| f_service_ << indent() << "var result = new " << resultname << "({success: result});" << endl |
| << indent() << "output.writeMessageBegin(\"" << tfunction->get_name() |
| << "\", Thrift.MessageType.REPLY, seqid);" << endl << indent() |
| << "result.write(output);" << endl << indent() << "output.writeMessageEnd();" << endl |
| << indent() << "output.flush();" << endl; |
| indent_down(); |
| indent(f_service_) << "}, function (err) {" << endl; |
| indent_up(); |
| |
| bool has_exception = false; |
| t_struct* exceptions = tfunction->get_xceptions(); |
| if (exceptions) { |
| const vector<t_field*>& members = exceptions->get_members(); |
| for (vector<t_field*>::const_iterator it = members.begin(); it != members.end(); ++it) { |
| t_type* t = get_true_type((*it)->get_type()); |
| if (t->is_xception()) { |
| if (!has_exception) { |
| has_exception = true; |
| indent(f_service_) << "if (err instanceof " << js_type_namespace(t->get_program()) |
| << t->get_name(); |
| } else { |
| f_service_ << " || err instanceof " << js_type_namespace(t->get_program()) |
| << t->get_name(); |
| } |
| } |
| } |
| } |
| |
| if (has_exception) { |
| f_service_ << ") {" << endl; |
| indent_up(); |
| f_service_ << indent() << "var result = new " << resultname << "(err);" << endl << indent() |
| << "output.writeMessageBegin(\"" << tfunction->get_name() |
| << "\", Thrift.MessageType.REPLY, seqid);" << endl; |
| |
| indent_down(); |
| indent(f_service_) << "} else {" << endl; |
| indent_up(); |
| } |
| |
| f_service_ << indent() << "var result = new " |
| "Thrift.TApplicationException(Thrift.TApplicationExceptionType.UNKNOWN," |
| " err.message);" << endl << indent() << "output.writeMessageBegin(\"" |
| << tfunction->get_name() << "\", Thrift.MessageType.EXCEPTION, seqid);" << endl; |
| |
| if (has_exception) { |
| indent_down(); |
| indent(f_service_) << "}" << endl; |
| } |
| |
| f_service_ << indent() << "result.write(output);" << endl << indent() |
| << "output.writeMessageEnd();" << endl << indent() << "output.flush();" << endl; |
| indent_down(); |
| indent(f_service_) << "});" << endl; |
| indent_down(); |
| indent_down(); |
| indent(f_service_) << "} else {" << endl; |
| indent_up(); |
| indent(f_service_) << "this._handler." << tfunction->get_name() << "("; |
| |
| for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { |
| f_service_ << "args." << (*f_iter)->get_name() << ", "; |
| } |
| |
| f_service_ << "function (err, result) {" << endl; |
| indent_up(); |
| |
| indent(f_service_) << "if (err == null"; |
| if (has_exception) { |
| const vector<t_field*>& members = exceptions->get_members(); |
| for (vector<t_field*>::const_iterator it = members.begin(); it != members.end(); ++it) { |
| t_type* t = get_true_type((*it)->get_type()); |
| if (t->is_xception()) { |
| f_service_ << " || err instanceof " << js_type_namespace(t->get_program()) << t->get_name(); |
| } |
| } |
| } |
| f_service_ << ") {" << endl; |
| indent_up(); |
| f_service_ << indent() << "var result = new " << resultname |
| << "((err != null ? err : {success: result}));" << endl << indent() |
| << "output.writeMessageBegin(\"" << tfunction->get_name() |
| << "\", Thrift.MessageType.REPLY, seqid);" << endl; |
| indent_down(); |
| indent(f_service_) << "} else {" << endl; |
| indent_up(); |
| f_service_ << indent() << "var result = new " |
| "Thrift.TApplicationException(Thrift.TApplicationExceptionType.UNKNOWN," |
| " err.message);" << endl << indent() << "output.writeMessageBegin(\"" |
| << tfunction->get_name() << "\", Thrift.MessageType.EXCEPTION, seqid);" << endl; |
| indent_down(); |
| f_service_ << indent() << "}" << endl << indent() << "result.write(output);" << endl << indent() |
| << "output.writeMessageEnd();" << endl << indent() << "output.flush();" << endl; |
| |
| indent_down(); |
| indent(f_service_) << "});" << endl; |
| indent_down(); |
| indent(f_service_) << "}" << endl; |
| scope_down(f_service_); |
| f_service_ << endl; |
| } |
| |
| /** |
| * Generates helper functions for a service. |
| * |
| * @param tservice The service to generate a header definition for |
| */ |
| void t_js_generator::generate_service_helpers(t_service* tservice) { |
| // Do not generate TS definitions for helper functions |
| bool gen_ts_tmp = gen_ts_; |
| gen_ts_ = false; |
| |
| vector<t_function*> functions = tservice->get_functions(); |
| vector<t_function*>::iterator f_iter; |
| |
| f_service_ << "//HELPER FUNCTIONS AND STRUCTURES" << endl << endl; |
| |
| for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { |
| t_struct* ts = (*f_iter)->get_arglist(); |
| string name = ts->get_name(); |
| ts->set_name(service_name_ + "_" + name); |
| generate_js_struct_definition(f_service_, ts, false, false); |
| generate_js_function_helpers(*f_iter); |
| ts->set_name(name); |
| } |
| |
| gen_ts_ = gen_ts_tmp; |
| } |
| |
| /** |
| * Generates a struct and helpers for a function. |
| * |
| * @param tfunction The function |
| */ |
| void t_js_generator::generate_js_function_helpers(t_function* tfunction) { |
| t_struct result(program_, service_name_ + "_" + 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_js_struct_definition(f_service_, &result, false, false); |
| } |
| |
| /** |
| * Generates a service interface definition. |
| * |
| * @param tservice The service to generate a header definition for |
| */ |
| void t_js_generator::generate_service_interface(t_service* tservice) { |
| (void)tservice; |
| } |
| |
| /** |
| * Generates a REST interface |
| */ |
| void t_js_generator::generate_service_rest(t_service* tservice) { |
| (void)tservice; |
| } |
| |
| /** |
| * Generates a service client definition. |
| * |
| * @param tservice The service to generate a server for. |
| */ |
| void t_js_generator::generate_service_client(t_service* tservice) { |
| if (gen_node_) { |
| f_service_ << js_namespace(tservice->get_program()) << service_name_ << "Client = " |
| << "exports.Client = function(output, pClass) {" << endl; |
| } else { |
| f_service_ << js_namespace(tservice->get_program()) << service_name_ |
| << "Client = function(input, output) {" << endl; |
| if (gen_ts_) { |
| f_service_ts_ << ts_print_doc(tservice) << ts_indent() << ts_declare() << "class " |
| << service_name_ << "Client "; |
| if (tservice->get_extends() != NULL) { |
| f_service_ts_ << "extends " << tservice->get_extends()->get_name() << "Client "; |
| } |
| f_service_ts_ << "{" << endl; |
| } |
| } |
| |
| indent_up(); |
| |
| if (gen_node_) { |
| f_service_ << indent() << " this.output = output;" << endl << indent() |
| << " this.pClass = pClass;" << endl << indent() << " this._seqid = 0;" << endl |
| << indent() << " this._reqs = {};" << endl; |
| } else { |
| f_service_ << indent() << " this.input = input;" << endl << indent() |
| << " this.output = (!output) ? input : output;" << endl << indent() |
| << " this.seqid = 0;" << endl; |
| if (gen_ts_) { |
| f_service_ts_ << ts_indent() << "input: Thrift.TJSONProtocol;" << endl << ts_indent() |
| << "output: Thrift.TJSONProtocol;" << endl << ts_indent() << "seqid: number;" |
| << endl << endl << ts_indent() |
| << "constructor(input: Thrift.TJSONProtocol, output?: Thrift.TJSONProtocol);" |
| << endl; |
| } |
| } |
| |
| indent_down(); |
| |
| f_service_ << indent() << "};" << endl; |
| |
| if (tservice->get_extends() != NULL) { |
| indent(f_service_) << "Thrift.inherits(" << js_namespace(tservice->get_program()) |
| << service_name_ << "Client, " |
| << js_namespace(tservice->get_extends()->get_program()) |
| << tservice->get_extends()->get_name() << "Client);" << endl; |
| } else { |
| // init prototype |
| indent(f_service_) << js_namespace(tservice->get_program()) << service_name_ |
| << "Client.prototype = {};" << endl; |
| } |
| |
| // utils for multiplexed services |
| if (gen_node_) { |
| indent(f_service_) << js_namespace(tservice->get_program()) << service_name_ |
| << "Client.prototype.seqid = function() { return this._seqid; }" << endl |
| << js_namespace(tservice->get_program()) << service_name_ |
| << "Client.prototype.new_seqid = function() { return this._seqid += 1; }" |
| << endl; |
| } |
| // Generate client method implementations |
| vector<t_function*> functions = tservice->get_functions(); |
| vector<t_function*>::const_iterator f_iter; |
| for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) { |
| t_struct* arg_struct = (*f_iter)->get_arglist(); |
| const vector<t_field*>& fields = arg_struct->get_members(); |
| vector<t_field*>::const_iterator fld_iter; |
| string funname = (*f_iter)->get_name(); |
| string arglist = argument_list(arg_struct); |
| |
| // Open function |
| f_service_ << js_namespace(tservice->get_program()) << service_name_ << "Client.prototype." |
| << function_signature(*f_iter, "", true) << " {" << endl; |
| |
| indent_up(); |
| |
| if (gen_ts_) { |
| f_service_ts_ << ts_print_doc(*f_iter) << |
| // function definition without callback |
| ts_indent() << ts_function_signature(*f_iter, false) << endl << ts_print_doc(*f_iter) << |
| // overload with callback |
| ts_indent() << ts_function_signature(*f_iter, true) << endl; |
| } |
| |
| if (gen_node_) { // Node.js output ./gen-nodejs |
| f_service_ << indent() << "this._seqid = this.new_seqid();" << endl << indent() |
| << "if (callback === undefined) {" << endl; |
| indent_up(); |
| f_service_ << indent() << "var _defer = Q.defer();" << endl << indent() |
| << "this._reqs[this.seqid()] = function(error, result) {" << endl; |
| indent_up(); |
| indent(f_service_) << "if (error) {" << endl; |
| indent_up(); |
| indent(f_service_) << "_defer.reject(error);" << endl; |
| indent_down(); |
| indent(f_service_) << "} else {" << endl; |
| indent_up(); |
| indent(f_service_) << "_defer.resolve(result);" << endl; |
| indent_down(); |
| indent(f_service_) << "}" << endl; |
| indent_down(); |
| indent(f_service_) << "};" << endl; |
| f_service_ << indent() << "this.send_" << funname << "(" << arglist << ");" << endl |
| << indent() << "return _defer.promise;" << endl; |
| indent_down(); |
| indent(f_service_) << "} else {" << endl; |
| indent_up(); |
| f_service_ << indent() << "this._reqs[this.seqid()] = callback;" << endl << indent() |
| << "this.send_" << funname << "(" << arglist << ");" << endl; |
| indent_down(); |
| indent(f_service_) << "}" << endl; |
| } else if (gen_jquery_) { // jQuery output ./gen-js |
| f_service_ << indent() << "if (callback === undefined) {" << endl; |
| indent_up(); |
| f_service_ << indent() << "this.send_" << funname << "(" << arglist << ");" << endl; |
| if (!(*f_iter)->is_oneway()) { |
| f_service_ << indent(); |
| if (!(*f_iter)->get_returntype()->is_void()) { |
| f_service_ << "return "; |
| } |
| f_service_ << "this.recv_" << funname << "();" << endl; |
| } |
| indent_down(); |
| f_service_ << indent() << "} else {" << endl; |
| indent_up(); |
| f_service_ << indent() << "var postData = this.send_" << funname << "(" << arglist |
| << (arglist.empty() ? "" : ", ") << "true);" << endl; |
| f_service_ << indent() << "return this.output.getTransport()" << endl; |
| indent_up(); |
| f_service_ << indent() << ".jqRequest(this, postData, arguments, this.recv_" << funname |
| << ");" << endl; |
| indent_down(); |
| indent_down(); |
| f_service_ << indent() << "}" << endl; |
| } else { // Standard JavaScript ./gen-js |
| f_service_ << indent() << "this.send_" << funname << "(" << arglist |
| << (arglist.empty() ? "" : ", ") << "callback); " << endl; |
| if (!(*f_iter)->is_oneway()) { |
| f_service_ << indent() << "if (!callback) {" << endl; |
| f_service_ << indent(); |
| if (!(*f_iter)->get_returntype()->is_void()) { |
| f_service_ << " return "; |
| } |
| f_service_ << "this.recv_" << funname << "();" << endl; |
| f_service_ << indent() << "}" << endl; |
| } |
| } |
| |
| indent_down(); |
| |
| f_service_ << "};" << endl << endl; |
| |
| // Send function |
| f_service_ << js_namespace(tservice->get_program()) << service_name_ << "Client.prototype.send_" |
| << function_signature(*f_iter, "", !gen_node_) << " {" << endl; |
| |
| indent_up(); |
| |
| std::string outputVar; |
| if (gen_node_) { |
| f_service_ << indent() << "var output = new this.pClass(this.output);" << endl; |
| outputVar = "output"; |
| } else { |
| outputVar = "this.output"; |
| } |
| |
| std::string argsname = js_namespace(program_) + service_name_ + "_" + (*f_iter)->get_name() |
| + "_args"; |
| |
| std::string messageType = (*f_iter)->is_oneway() ? "Thrift.MessageType.ONEWAY" |
| : "Thrift.MessageType.CALL"; |
| |
| // Serialize the request header |
| if (gen_node_) { |
| f_service_ << indent() << outputVar << ".writeMessageBegin('" << (*f_iter)->get_name() |
| << "', " << messageType << ", this.seqid());" << endl; |
| } else { |
| f_service_ << indent() << outputVar << ".writeMessageBegin('" << (*f_iter)->get_name() |
| << "', " << messageType << ", this.seqid);" << endl; |
| } |
| |
| f_service_ << indent() << "var args = 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; |
| } |
| |
| // Write to the stream |
| f_service_ << indent() << "args.write(" << outputVar << ");" << endl << indent() << outputVar |
| << ".writeMessageEnd();" << endl; |
| |
| if (gen_node_) { |
| f_service_ << indent() << "return this.output.flush();" << endl; |
| } else { |
| if (gen_jquery_) { |
| f_service_ << indent() << "return this.output.getTransport().flush(callback);" << endl; |
| } else { |
| f_service_ << indent() << "if (callback) {" << endl; |
| f_service_ << indent() << " var self = this;" << endl; |
| f_service_ << indent() << " this.output.getTransport().flush(true, function() {" << endl; |
| f_service_ << indent() << " var result = null;" << endl; |
| f_service_ << indent() << " try {" << endl; |
| f_service_ << indent() << " result = self.recv_" << funname << "();" << endl; |
| f_service_ << indent() << " } catch (e) {" << endl; |
| f_service_ << indent() << " result = e;" << endl; |
| f_service_ << indent() << " }" << endl; |
| f_service_ << indent() << " callback(result);" << endl; |
| f_service_ << indent() << " });" << endl; |
| f_service_ << indent() << "} else {" << endl; |
| f_service_ << indent() << " return this.output.getTransport().flush();" << endl; |
| f_service_ << indent() << "}" << endl; |
| } |
| } |
| |
| indent_down(); |
| |
| f_service_ << "};" << endl; |
| |
| if (!(*f_iter)->is_oneway()) { |
| std::string resultname = js_namespace(tservice->get_program()) + service_name_ + "_" |
| + (*f_iter)->get_name() + "_result"; |
| |
| if (gen_node_) { |
| // Open function |
| f_service_ << endl << js_namespace(tservice->get_program()) << service_name_ |
| << "Client.prototype.recv_" << (*f_iter)->get_name() |
| << " = function(input,mtype,rseqid) {" << endl; |
| } else { |
| t_struct noargs(program_); |
| |
| t_function recv_function((*f_iter)->get_returntype(), |
| string("recv_") + (*f_iter)->get_name(), |
| &noargs); |
| // Open function |
| f_service_ << endl << js_namespace(tservice->get_program()) << service_name_ |
| << "Client.prototype." << function_signature(&recv_function) << " {" << endl; |
| } |
| |
| indent_up(); |
| |
| std::string inputVar; |
| if (gen_node_) { |
| inputVar = "input"; |
| } else { |
| inputVar = "this.input"; |
| } |
| |
| if (gen_node_) { |
| f_service_ << indent() << "var callback = this._reqs[rseqid] || function() {};" << endl |
| << indent() << "delete this._reqs[rseqid];" << endl; |
| } else { |
| f_service_ << indent() << "var ret = this.input.readMessageBegin();" << endl << indent() |
| << "var fname = ret.fname;" << endl << indent() << "var mtype = ret.mtype;" |
| << endl << indent() << "var rseqid = ret.rseqid;" << endl; |
| } |
| |
| f_service_ << indent() << "if (mtype == Thrift.MessageType.EXCEPTION) {" << endl << indent() |
| << " var x = new Thrift.TApplicationException();" << endl << indent() |
| << " x.read(" << inputVar << ");" << endl << indent() << " " << inputVar |
| << ".readMessageEnd();" << endl << indent() << " " << render_recv_throw("x") |
| << endl << indent() << "}" << endl; |
| |
| f_service_ << indent() << "var result = new " << resultname << "();" << endl << indent() |
| << "result.read(" << inputVar << ");" << endl; |
| |
| f_service_ << indent() << inputVar << ".readMessageEnd();" << endl << 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 (null !== result." << (*x_iter)->get_name() << ") {" << endl |
| << indent() << " " << render_recv_throw("result." + (*x_iter)->get_name()) |
| << endl << indent() << "}" << endl; |
| } |
| |
| // Careful, only return result if not a void function |
| if (!(*f_iter)->get_returntype()->is_void()) { |
| f_service_ << indent() << "if (null !== result.success) {" << endl << indent() << " " |
| << render_recv_return("result.success") << endl << indent() << "}" << endl; |
| f_service_ << indent() |
| << render_recv_throw("'" + (*f_iter)->get_name() + " failed: unknown result'") |
| << endl; |
| } else { |
| if (gen_node_) { |
| indent(f_service_) << "callback(null)" << endl; |
| } else { |
| indent(f_service_) << "return;" << endl; |
| } |
| } |
| |
| // Close function |
| indent_down(); |
| f_service_ << "};" << endl; |
| } |
| } |
| |
| if (gen_ts_) { |
| f_service_ts_ << ts_indent() << "}" << endl; |
| } |
| } |
| |
| std::string t_js_generator::render_recv_throw(std::string var) { |
| if (gen_node_) { |
| return "return callback(" + var + ");"; |
| } else { |
| return "throw " + var + ";"; |
| } |
| } |
| |
| std::string t_js_generator::render_recv_return(std::string var) { |
| if (gen_node_) { |
| return "return callback(null, " + var + ");"; |
| } else { |
| return "return " + var + ";"; |
| } |
| } |
| |
| /** |
| * Deserializes a field of any type. |
| */ |
| void t_js_generator::generate_deserialize_field(ofstream& out, |
| t_field* tfield, |
| string prefix, |
| bool inclass) { |
| (void)inclass; |
| 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 << " = input."; |
| |
| 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: |
| out << (((t_base_type*)type)->is_binary() ? "readBinary()" : "readString()"); |
| break; |
| case t_base_type::TYPE_BOOL: |
| out << "readBool()"; |
| break; |
| case t_base_type::TYPE_BYTE: |
| out << "readByte()"; |
| break; |
| case t_base_type::TYPE_I16: |
| out << "readI16()"; |
| break; |
| case t_base_type::TYPE_I32: |
| out << "readI32()"; |
| break; |
| case t_base_type::TYPE_I64: |
| out << "readI64()"; |
| break; |
| case t_base_type::TYPE_DOUBLE: |
| out << "readDouble()"; |
| break; |
| default: |
| throw "compiler error: no JS name for base type " + t_base_type::t_base_name(tbase); |
| } |
| } else if (type->is_enum()) { |
| out << "readI32()"; |
| } |
| |
| if (!gen_node_) { |
| out << ".value"; |
| } |
| |
| out << ";" << endl; |
| } else { |
| printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n", |
| tfield->get_name().c_str(), |
| type->get_name().c_str()); |
| } |
| } |
| |
| /** |
| * Generates an unserializer for a variable. This makes two key assumptions, |
| * first that there is a const char* variable named data that points to the |
| * buffer for deserialization, and that there is a variable protocol which |
| * is a reference to a TProtocol serialization object. |
| */ |
| void t_js_generator::generate_deserialize_struct(ofstream& out, t_struct* tstruct, string prefix) { |
| out << indent() << prefix << " = new " << js_type_namespace(tstruct->get_program()) |
| << tstruct->get_name() << "();" << endl << indent() << prefix << ".read(input);" << endl; |
| } |
| |
| void t_js_generator::generate_deserialize_container(ofstream& out, t_type* ttype, string prefix) { |
| string size = tmp("_size"); |
| string ktype = tmp("_ktype"); |
| string vtype = tmp("_vtype"); |
| string etype = tmp("_etype"); |
| string rtmp3 = tmp("_rtmp3"); |
| |
| t_field fsize(g_type_i32, size); |
| t_field fktype(g_type_byte, ktype); |
| t_field fvtype(g_type_byte, vtype); |
| t_field fetype(g_type_byte, etype); |
| |
| out << indent() << "var " << size << " = 0;" << endl; |
| out << indent() << "var " << rtmp3 << ";" << endl; |
| |
| // Declare variables, read header |
| if (ttype->is_map()) { |
| out << indent() << prefix << " = {};" << endl << indent() << "var " << ktype << " = 0;" << endl |
| << indent() << "var " << vtype << " = 0;" << endl; |
| |
| out << indent() << rtmp3 << " = input.readMapBegin();" << endl; |
| out << indent() << ktype << " = " << rtmp3 << ".ktype;" << endl; |
| out << indent() << vtype << " = " << rtmp3 << ".vtype;" << endl; |
| out << indent() << size << " = " << rtmp3 << ".size;" << endl; |
| |
| } else if (ttype->is_set()) { |
| |
| out << indent() << prefix << " = [];" << endl << indent() << "var " << etype << " = 0;" << endl |
| << indent() << rtmp3 << " = input.readSetBegin();" << endl << indent() << etype << " = " |
| << rtmp3 << ".etype;" << endl << indent() << size << " = " << rtmp3 << ".size;" << endl; |
| |
| } else if (ttype->is_list()) { |
| |
| out << indent() << prefix << " = [];" << endl << indent() << "var " << etype << " = 0;" << endl |
| << indent() << rtmp3 << " = input.readListBegin();" << endl << indent() << etype << " = " |
| << rtmp3 << ".etype;" << endl << indent() << size << " = " << rtmp3 << ".size;" << endl; |
| } |
| |
| // For loop iterates over elements |
| string i = tmp("_i"); |
| indent(out) << "for (var " << i << " = 0; " << i << " < " << size << "; ++" << i << ")" << endl; |
| |
| scope_up(out); |
| |
| if (ttype->is_map()) { |
| if (!gen_node_) { |
| out << indent() << "if (" << i << " > 0 ) {" << endl << indent() |
| << " if (input.rstack.length > input.rpos[input.rpos.length -1] + 1) {" << endl |
| << indent() << " input.rstack.pop();" << endl << indent() << " }" << endl << indent() |
| << "}" << endl; |
| } |
| |
| 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) << "input.readMapEnd();" << endl; |
| } else if (ttype->is_set()) { |
| indent(out) << "input.readSetEnd();" << endl; |
| } else if (ttype->is_list()) { |
| indent(out) << "input.readListEnd();" << endl; |
| } |
| } |
| |
| /** |
| * Generates code to deserialize a map |
| */ |
| void t_js_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, false, false) << ";" << endl; |
| indent(out) << declare_field(&fval, false, false) << ";" << endl; |
| |
| generate_deserialize_field(out, &fkey); |
| generate_deserialize_field(out, &fval); |
| |
| indent(out) << prefix << "[" << key << "] = " << val << ";" << endl; |
| } |
| |
| void t_js_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) << "var " << elem << " = null;" << endl; |
| |
| generate_deserialize_field(out, &felem); |
| |
| indent(out) << prefix << ".push(" << elem << ");" << endl; |
| } |
| |
| void t_js_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) << "var " << elem << " = null;" << 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_js_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 = tfield->get_name(); |
| |
| // Hack for when prefix is defined (always a hash ref) |
| if (!prefix.empty()) |
| name = prefix + tfield->get_name(); |
| |
| indent(out) << "output."; |
| |
| 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: |
| out << (((t_base_type*)type)->is_binary() ? "writeBinary(" : "writeString(") << name << ")"; |
| break; |
| case t_base_type::TYPE_BOOL: |
| out << "writeBool(" << name << ")"; |
| break; |
| case t_base_type::TYPE_BYTE: |
| out << "writeByte(" << name << ")"; |
| break; |
| case t_base_type::TYPE_I16: |
| out << "writeI16(" << name << ")"; |
| break; |
| case t_base_type::TYPE_I32: |
| out << "writeI32(" << name << ")"; |
| break; |
| case t_base_type::TYPE_I64: |
| out << "writeI64(" << name << ")"; |
| break; |
| case t_base_type::TYPE_DOUBLE: |
| out << "writeDouble(" << name << ")"; |
| break; |
| default: |
| throw "compiler error: no JS 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->get_name().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_js_generator::generate_serialize_struct(ofstream& out, t_struct* tstruct, string prefix) { |
| (void)tstruct; |
| indent(out) << prefix << ".write(output);" << endl; |
| } |
| |
| /** |
| * Writes out a container |
| */ |
| void t_js_generator::generate_serialize_container(ofstream& out, t_type* ttype, string prefix) { |
| if (ttype->is_map()) { |
| indent(out) << "output.writeMapBegin(" << type_to_enum(((t_map*)ttype)->get_key_type()) << ", " |
| << type_to_enum(((t_map*)ttype)->get_val_type()) << ", " |
| << "Thrift.objectLength(" << prefix << "));" << endl; |
| } else if (ttype->is_set()) { |
| indent(out) << "output.writeSetBegin(" << type_to_enum(((t_set*)ttype)->get_elem_type()) << ", " |
| << prefix << ".length);" << endl; |
| |
| } else if (ttype->is_list()) { |
| |
| indent(out) << "output.writeListBegin(" << type_to_enum(((t_list*)ttype)->get_elem_type()) |
| << ", " << prefix << ".length);" << endl; |
| } |
| |
| if (ttype->is_map()) { |
| string kiter = tmp("kiter"); |
| string viter = tmp("viter"); |
| indent(out) << "for (var " << kiter << " in " << prefix << ")" << endl; |
| scope_up(out); |
| indent(out) << "if (" << prefix << ".hasOwnProperty(" << kiter << "))" << endl; |
| scope_up(out); |
| indent(out) << "var " << viter << " = " << prefix << "[" << kiter << "];" << endl; |
| generate_serialize_map_element(out, (t_map*)ttype, kiter, viter); |
| scope_down(out); |
| scope_down(out); |
| |
| } else if (ttype->is_set()) { |
| string iter = tmp("iter"); |
| indent(out) << "for (var " << iter << " in " << prefix << ")" << endl; |
| scope_up(out); |
| indent(out) << "if (" << prefix << ".hasOwnProperty(" << iter << "))" << endl; |
| scope_up(out); |
| indent(out) << iter << " = " << prefix << "[" << iter << "];" << endl; |
| generate_serialize_set_element(out, (t_set*)ttype, iter); |
| scope_down(out); |
| scope_down(out); |
| |
| } else if (ttype->is_list()) { |
| string iter = tmp("iter"); |
| indent(out) << "for (var " << iter << " in " << prefix << ")" << endl; |
| scope_up(out); |
| indent(out) << "if (" << prefix << ".hasOwnProperty(" << iter << "))" << endl; |
| scope_up(out); |
| indent(out) << iter << " = " << prefix << "[" << iter << "];" << endl; |
| generate_serialize_list_element(out, (t_list*)ttype, iter); |
| scope_down(out); |
| scope_down(out); |
| } |
| |
| if (ttype->is_map()) { |
| indent(out) << "output.writeMapEnd();" << endl; |
| } else if (ttype->is_set()) { |
| indent(out) << "output.writeSetEnd();" << endl; |
| } else if (ttype->is_list()) { |
| indent(out) << "output.writeListEnd();" << endl; |
| } |
| } |
| |
| /** |
| * Serializes the members of a map. |
| * |
| */ |
| void t_js_generator::generate_serialize_map_element(ofstream& out, |
| t_map* tmap, |
| string kiter, |
| string viter) { |
| t_field kfield(tmap->get_key_type(), kiter); |
| generate_serialize_field(out, &kfield); |
| |
| t_field vfield(tmap->get_val_type(), viter); |
| generate_serialize_field(out, &vfield); |
| } |
| |
| /** |
| * Serializes the members of a set. |
| */ |
| void t_js_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_js_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); |
| } |
| |
| /** |
| * Declares a field, which may include initialization as necessary. |
| * |
| * @param ttype The type |
| */ |
| string t_js_generator::declare_field(t_field* tfield, bool init, bool obj) { |
| string result = "this." + tfield->get_name(); |
| |
| if (!obj) { |
| result = "var " + tfield->get_name(); |
| } |
| |
| if (init) { |
| t_type* type = get_true_type(tfield->get_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: |
| break; |
| case t_base_type::TYPE_STRING: |
| case t_base_type::TYPE_BOOL: |
| case t_base_type::TYPE_BYTE: |
| case t_base_type::TYPE_I16: |
| case t_base_type::TYPE_I32: |
| case t_base_type::TYPE_I64: |
| case t_base_type::TYPE_DOUBLE: |
| result += " = null"; |
| break; |
| default: |
| throw "compiler error: no JS initializer for base type " + t_base_type::t_base_name(tbase); |
| } |
| } else if (type->is_enum()) { |
| result += " = null"; |
| } else if (type->is_map()) { |
| result += " = null"; |
| } else if (type->is_container()) { |
| result += " = null"; |
| } else if (type->is_struct() || type->is_xception()) { |
| if (obj) { |
| result += " = new " + js_type_namespace(type->get_program()) + type->get_name() + "()"; |
| } else { |
| result += " = null"; |
| } |
| } |
| } else { |
| result += " = null"; |
| } |
| return result; |
| } |
| |
| /** |
| * Renders a function signature of the form 'type name(args)' |
| * |
| * @param tfunction Function definition |
| * @return String of rendered function definition |
| */ |
| string t_js_generator::function_signature(t_function* tfunction, |
| string prefix, |
| bool include_callback) { |
| |
| string str; |
| |
| str = prefix + tfunction->get_name() + " = function("; |
| |
| str += argument_list(tfunction->get_arglist(), include_callback); |
| |
| str += ")"; |
| return str; |
| } |
| |
| /** |
| * Renders a field list |
| */ |
| string t_js_generator::argument_list(t_struct* tstruct, bool include_callback) { |
| 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(); |
| } |
| |
| if (include_callback) { |
| if (!fields.empty()) { |
| result += ", "; |
| } |
| result += "callback"; |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Converts the parse type to a C++ enum string for the given type. |
| */ |
| string t_js_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 "Thrift.Type.STRING"; |
| case t_base_type::TYPE_BOOL: |
| return "Thrift.Type.BOOL"; |
| case t_base_type::TYPE_BYTE: |
| return "Thrift.Type.BYTE"; |
| case t_base_type::TYPE_I16: |
| return "Thrift.Type.I16"; |
| case t_base_type::TYPE_I32: |
| return "Thrift.Type.I32"; |
| case t_base_type::TYPE_I64: |
| return "Thrift.Type.I64"; |
| case t_base_type::TYPE_DOUBLE: |
| return "Thrift.Type.DOUBLE"; |
| } |
| } else if (type->is_enum()) { |
| return "Thrift.Type.I32"; |
| } else if (type->is_struct() || type->is_xception()) { |
| return "Thrift.Type.STRUCT"; |
| } else if (type->is_map()) { |
| return "Thrift.Type.MAP"; |
| } else if (type->is_set()) { |
| return "Thrift.Type.SET"; |
| } else if (type->is_list()) { |
| return "Thrift.Type.LIST"; |
| } |
| |
| throw "INVALID TYPE IN type_to_enum: " + type->get_name(); |
| } |
| |
| /** |
| * Converts a t_type to a TypeScript type (string). |
| * @param t_type Type to convert to TypeScript |
| * @return String TypeScript type |
| */ |
| string t_js_generator::ts_get_type(t_type* type) { |
| std::string ts_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_STRING: |
| ts_type = "string"; |
| break; |
| case t_base_type::TYPE_BOOL: |
| ts_type = "boolean"; |
| break; |
| case t_base_type::TYPE_BYTE: |
| ts_type = "any"; |
| break; |
| case t_base_type::TYPE_I16: |
| case t_base_type::TYPE_I32: |
| case t_base_type::TYPE_I64: |
| case t_base_type::TYPE_DOUBLE: |
| ts_type = "number"; |
| break; |
| case t_base_type::TYPE_VOID: |
| ts_type = "void"; |
| } |
| } else if (type->is_enum() || type->is_struct() || type->is_xception()) { |
| std::string type_name; |
| if (type->get_program()) { |
| type_name = js_namespace(type->get_program()); |
| } |
| type_name.append(type->get_name()); |
| ts_type = type_name; |
| } else if (type->is_list() || type->is_set()) { |
| t_type* etype; |
| |
| if (type->is_list()) { |
| etype = ((t_list*)type)->get_elem_type(); |
| } else { |
| etype = ((t_set*)type)->get_elem_type(); |
| } |
| |
| ts_type = ts_get_type(etype) + "[]"; |
| } else if (type->is_map()) { |
| string ktype = ts_get_type(((t_map*)type)->get_key_type()); |
| string vtype = ts_get_type(((t_map*)type)->get_val_type()); |
| |
| |
| if (ktype == "number" || ktype == "string" ) { |
| ts_type = "{ [k: " + ktype + "]: " + vtype + "; }"; |
| } else if ((((t_map*)type)->get_key_type())->is_enum()) { |
| // Not yet supported (enum map): https://github.com/Microsoft/TypeScript/pull/2652 |
| //ts_type = "{ [k: " + ktype + "]: " + vtype + "; }"; |
| ts_type = "{ [k: number /*" + ktype + "*/]: " + vtype + "; }"; |
| } else { |
| ts_type = "any"; |
| } |
| } |
| |
| return ts_type; |
| } |
| |
| /** |
| * Renders a TypeScript function signature of the form 'name(args: types): type;' |
| * |
| * @param t_function Function definition |
| * @param bool in-/exclude the callback argument |
| * @return String of rendered function definition |
| */ |
| std::string t_js_generator::ts_function_signature(t_function* tfunction, bool include_callback) { |
| string str; |
| const vector<t_field*>& fields = tfunction->get_arglist()->get_members(); |
| vector<t_field*>::const_iterator f_iter; |
| |
| str = tfunction->get_name() + "("; |
| |
| for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) { |
| str += (*f_iter)->get_name() + ts_get_req(*f_iter) + ": " + ts_get_type((*f_iter)->get_type()); |
| |
| if (f_iter + 1 != fields.end() || (include_callback && fields.size() > 0)) { |
| str += ", "; |
| } |
| } |
| |
| if (include_callback) { |
| str += "callback: Function): "; |
| |
| if (gen_jquery_) { |
| str += "JQueryXHR;"; |
| } else { |
| str += "void;"; |
| } |
| } else { |
| str += "): " + ts_get_type(tfunction->get_returntype()) + ";"; |
| } |
| |
| return str; |
| } |
| |
| THRIFT_REGISTER_GENERATOR(js, |
| "Javascript", |
| " jquery: Generate jQuery compatible code.\n" |
| " node: Generate node.js compatible code.\n" |
| " ts: Generate TypeScript definition files.\n") |
