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Posted to commits@hawq.apache.org by es...@apache.org on 2016/09/08 05:21:06 UTC
[27/54] [partial] incubator-hawq git commit: HAWQ-959. revert thrift
build commands.
http://git-wip-us.apache.org/repos/asf/incubator-hawq/blob/928eade3/depends/thirdparty/thrift/compiler/cpp/src/generate/t_perl_generator.cc
----------------------------------------------------------------------
diff --git a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_perl_generator.cc b/depends/thirdparty/thrift/compiler/cpp/src/generate/t_perl_generator.cc
deleted file mode 100644
index 5f52c24..0000000
--- a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_perl_generator.cc
+++ /dev/null
@@ -1,1642 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-#include <string>
-#include <fstream>
-#include <iostream>
-#include <vector>
-#include <list>
-
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sstream>
-#include "t_oop_generator.h"
-#include "platform.h"
-#include "version.h"
-
-using std::map;
-using std::ofstream;
-using std::ostringstream;
-using std::string;
-using std::stringstream;
-using std::vector;
-
-static const string endl = "\n"; // avoid ostream << std::endl flushes
-
-/**
- * PERL code generator.
- *
- */
-class t_perl_generator : public t_oop_generator {
-public:
- t_perl_generator(t_program* program,
- const std::map<std::string, std::string>& parsed_options,
- const std::string& option_string)
- : t_oop_generator(program) {
- (void)parsed_options;
- (void)option_string;
- out_dir_base_ = "gen-perl";
- escape_['$'] = "\\$";
- 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_const_value(t_type* type, t_const_value* value);
-
- /**
- * Structs!
- */
-
- void generate_perl_struct(t_struct* tstruct, bool is_exception);
- void generate_perl_struct_definition(std::ofstream& out,
- t_struct* tstruct,
- bool is_xception = false);
- void generate_perl_struct_reader(std::ofstream& out, t_struct* tstruct);
- void generate_perl_struct_writer(std::ofstream& out, t_struct* tstruct);
- void generate_perl_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 perl_includes();
- std::string declare_field(t_field* tfield, bool init = false, bool obj = 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 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";
- }
-
- void perl_namespace_dirs(t_program* p, std::list<std::string>& dirs) {
- std::string ns = p->get_namespace("perl");
- std::string::size_type loc;
-
- if (ns.size() > 0) {
- while ((loc = ns.find(".")) != std::string::npos) {
- dirs.push_back(ns.substr(0, loc));
- ns = ns.substr(loc + 1);
- }
- }
-
- if (ns.size() > 0) {
- dirs.push_back(ns);
- }
- }
-
- std::string perl_namespace(t_program* p) {
- std::string ns = p->get_namespace("perl");
- std::string result = "";
- std::string::size_type loc;
-
- if (ns.size() > 0) {
- while ((loc = ns.find(".")) != std::string::npos) {
- result += ns.substr(0, loc);
- result += "::";
- ns = ns.substr(loc + 1);
- }
-
- if (ns.size() > 0) {
- result += ns + "::";
- }
- }
-
- return result;
- }
-
- std::string get_namespace_out_dir() {
- std::string outdir = get_out_dir();
- std::list<std::string> dirs;
- perl_namespace_dirs(program_, dirs);
- std::list<std::string>::iterator it;
- for (it = dirs.begin(); it != dirs.end(); it++) {
- outdir += *it + "/";
- }
- return outdir;
- }
-
-private:
- /**
- * File streams
- */
- std::ofstream f_types_;
- std::ofstream f_consts_;
- std::ofstream f_helpers_;
- std::ofstream f_service_;
-};
-
-/**
- * Prepares for file generation by opening up the necessary file output
- * streams.
- *
- * @param tprogram The program to generate
- */
-void t_perl_generator::init_generator() {
- // Make output directory
- MKDIR(get_out_dir().c_str());
-
- string outdir = get_out_dir();
- std::list<std::string> dirs;
- perl_namespace_dirs(program_, dirs);
- std::list<std::string>::iterator it;
- for (it = dirs.begin(); it != dirs.end(); it++) {
- outdir += *it + "/";
- MKDIR(outdir.c_str());
- }
-
- // Make output file
- string f_types_name = outdir + "Types.pm";
- f_types_.open(f_types_name.c_str());
- string f_consts_name = outdir + "Constants.pm";
- f_consts_.open(f_consts_name.c_str());
-
- // Print header
- f_types_ << autogen_comment() << perl_includes();
-
- // Print header
- f_consts_ << autogen_comment() << "package " << perl_namespace(program_) << "Constants;" << endl
- << perl_includes() << endl;
-}
-
-/**
- * Prints standard java imports
- */
-string t_perl_generator::perl_includes() {
- string inc;
-
- inc = "require 5.6.0;\n";
- inc += "use strict;\n";
- inc += "use warnings;\n";
- inc += "use Thrift;\n\n";
-
- return inc;
-}
-
-/**
- * Close up (or down) some filez.
- */
-void t_perl_generator::close_generator() {
- // Close types file
- f_types_ << "1;" << endl;
- f_types_.close();
-
- f_consts_ << "1;" << endl;
- f_consts_.close();
-}
-
-/**
- * Generates a typedef. This is not done in PERL, types are all implicit.
- *
- * @param ttypedef The type definition
- */
-void t_perl_generator::generate_typedef(t_typedef* ttypedef) {
- (void)ttypedef;
-}
-
-/**
- * Generates code for an enumerated type. Since define is expensive to lookup
- * in PERL, we use a global array for this.
- *
- * @param tenum The enumeration
- */
-void t_perl_generator::generate_enum(t_enum* tenum) {
- f_types_ << "package " << perl_namespace(program_) << tenum->get_name() << ";" << endl;
-
- 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();
- f_types_ << "use constant " << (*c_iter)->get_name() << " => " << value << ";" << endl;
- }
-}
-
-/**
- * Generate a constant value
- */
-void t_perl_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_consts_ << "use constant " << name << " => ";
- f_consts_ << render_const_value(type, value);
- f_consts_ << ";" << endl << 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_perl_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 ? "1" : "0");
- 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 " << perl_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();
- }
- out << render_const_value(g_type_string, v_iter->first);
- out << " => ";
- out << render_const_value(field_type, v_iter->second);
- out << ",";
- out << endl;
- }
-
- 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;
-
- 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) {
- out << render_const_value(ktype, v_iter->first);
- out << " => ";
- out << render_const_value(vtype, v_iter->second);
- out << "," << endl;
- }
-
- out << "}";
- } 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 << "[" << endl;
- 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) {
-
- out << render_const_value(etype, *v_iter);
- if (type->is_set()) {
- out << " => 1";
- }
- out << "," << endl;
- }
- out << "]";
- }
- return out.str();
-}
-
-/**
- * Make a struct
- */
-void t_perl_generator::generate_struct(t_struct* tstruct) {
- generate_perl_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_perl_generator::generate_xception(t_struct* txception) {
- generate_perl_struct(txception, true);
-}
-
-/**
- * Structs can be normal or exceptions.
- */
-void t_perl_generator::generate_perl_struct(t_struct* tstruct, bool is_exception) {
- generate_perl_struct_definition(f_types_, tstruct, is_exception);
-}
-
-/**
- * Generates a struct definition for a thrift data type. This is nothing in PERL
- * 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_perl_generator::generate_perl_struct_definition(ofstream& out,
- t_struct* tstruct,
- bool is_exception) {
- const vector<t_field*>& members = tstruct->get_members();
- vector<t_field*>::const_iterator m_iter;
-
- out << "package " << perl_namespace(tstruct->get_program()) << tstruct->get_name() << ";\n";
- if (is_exception) {
- out << "use base qw(Thrift::TException);\n";
- }
-
- // Create simple acessor methods
- out << "use base qw(Class::Accessor);\n";
-
- if (members.size() > 0) {
- out << perl_namespace(tstruct->get_program()) << tstruct->get_name() << "->mk_accessors( qw( ";
- 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 << (*m_iter)->get_name() << " ";
- }
- }
-
- out << ") );\n";
- }
-
- out << endl;
-
- // new()
- indent_up();
- out << "sub new {" << endl << indent() << "my $classname = shift;" << endl << indent()
- << "my $self = {};" << endl << indent() << "my $vals = shift || {};" << endl;
-
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- string dval = "undef";
- t_type* t = get_true_type((*m_iter)->get_type());
- if ((*m_iter)->get_value() != NULL && !(t->is_struct() || t->is_xception())) {
- dval = render_const_value((*m_iter)->get_type(), (*m_iter)->get_value());
- }
- out << indent() << "$self->{" << (*m_iter)->get_name() << "} = " << dval << ";" << 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) << "$self->{" << (*m_iter)->get_name()
- << "} = " << render_const_value(t, (*m_iter)->get_value()) << ";" << endl;
- }
- }
-
- out << indent() << "if (UNIVERSAL::isa($vals,'HASH')) {" << endl;
- indent_up();
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- out << indent() << "if (defined $vals->{" << (*m_iter)->get_name() << "}) {" << endl
- << indent() << " $self->{" << (*m_iter)->get_name() << "} = $vals->{"
- << (*m_iter)->get_name() << "};" << endl << indent() << "}" << endl;
- }
- indent_down();
- out << indent() << "}" << endl;
- }
-
- out << indent() << "return bless ($self, $classname);" << endl;
- indent_down();
- out << "}\n\n";
-
- out << "sub getName {" << endl << indent() << " return '" << tstruct->get_name() << "';" << endl
- << indent() << "}" << endl << endl;
-
- generate_perl_struct_reader(out, tstruct);
- generate_perl_struct_writer(out, tstruct);
-}
-
-/**
- * Generates the read() method for a struct
- */
-void t_perl_generator::generate_perl_struct_reader(ofstream& out, t_struct* tstruct) {
- const vector<t_field*>& fields = tstruct->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- out << "sub read {" << endl;
-
- indent_up();
-
- out << indent() << "my ($self, $input) = @_;" << endl << indent() << "my $xfer = 0;" << endl
- << indent() << "my $fname;" << endl << indent() << "my $ftype = 0;" << endl << indent()
- << "my $fid = 0;" << endl;
-
- indent(out) << "$xfer += $input->readStructBegin(\\$fname);" << endl;
-
- // Loop over reading in fields
- indent(out) << "while (1) " << endl;
-
- scope_up(out);
-
- indent(out) << "$xfer += $input->readFieldBegin(\\$fname, \\$ftype, \\$fid);" << endl;
-
- // Check for field STOP marker and break
- indent(out) << "if ($ftype == TType::STOP) {" << endl;
- indent_up();
- indent(out) << "last;" << endl;
- indent_down();
- indent(out) << "}" << endl;
-
- // Switch statement on the field we are reading
- indent(out) << "SWITCH: for($fid)" << endl;
-
- scope_up(out);
-
- // Generate deserialization code for known cases
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
-
- indent(out) << "/^" << (*f_iter)->get_key() << "$/ && do{";
- indent(out) << "if ($ftype == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl;
-
- indent_up();
- generate_deserialize_field(out, *f_iter, "self->");
- indent_down();
-
- indent(out) << "} else {" << endl;
-
- indent(out) << " $xfer += $input->skip($ftype);" << endl;
-
- out << indent() << "}" << endl << indent() << "last; };" << endl;
- }
- // In the default case we skip the field
-
- indent(out) << " $xfer += $input->skip($ftype);" << endl;
-
- scope_down(out);
-
- indent(out) << "$xfer += $input->readFieldEnd();" << endl;
-
- scope_down(out);
-
- indent(out) << "$xfer += $input->readStructEnd();" << endl;
-
- indent(out) << "return $xfer;" << endl;
-
- indent_down();
- out << indent() << "}" << endl << endl;
-}
-
-/**
- * Generates the write() method for a struct
- */
-void t_perl_generator::generate_perl_struct_writer(ofstream& out, t_struct* tstruct) {
- string name = tstruct->get_name();
- const vector<t_field*>& fields = tstruct->get_sorted_members();
- vector<t_field*>::const_iterator f_iter;
-
- out << "sub write {" << endl;
-
- indent_up();
- indent(out) << "my ($self, $output) = @_;" << endl;
- indent(out) << "my $xfer = 0;" << endl;
-
- indent(out) << "$xfer += $output->writeStructBegin('" << name << "');" << endl;
-
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- out << indent() << "if (defined $self->{" << (*f_iter)->get_name() << "}) {" << endl;
- indent_up();
-
- indent(out) << "$xfer += $output->writeFieldBegin("
- << "'" << (*f_iter)->get_name() << "', " << type_to_enum((*f_iter)->get_type())
- << ", " << (*f_iter)->get_key() << ");" << endl;
-
- // Write field contents
- generate_serialize_field(out, *f_iter, "self->");
-
- indent(out) << "$xfer += $output->writeFieldEnd();" << endl;
-
- indent_down();
- indent(out) << "}" << endl;
- }
-
- out << indent() << "$xfer += $output->writeFieldStop();" << endl << indent()
- << "$xfer += $output->writeStructEnd();" << endl;
-
- out << indent() << "return $xfer;" << endl;
-
- indent_down();
- out << indent() << "}" << endl << endl;
-}
-
-/**
- * Generates a thrift service.
- *
- * @param tservice The service definition
- */
-void t_perl_generator::generate_service(t_service* tservice) {
- string f_service_name = get_namespace_out_dir() + service_name_ + ".pm";
- f_service_.open(f_service_name.c_str());
-
- f_service_ <<
- /// "package "<<service_name_<<";"<<endl<<
- autogen_comment() << perl_includes();
-
- f_service_ << "use " << perl_namespace(tservice->get_program()) << "Types;" << endl;
-
- t_service* extends_s = tservice->get_extends();
- if (extends_s != NULL) {
- f_service_ << "use " << perl_namespace(extends_s->get_program()) << extends_s->get_name() << ";"
- << endl;
- }
-
- f_service_ << endl;
-
- // Generate the three main parts of the service (well, two for now in PERL)
- generate_service_helpers(tservice);
- generate_service_interface(tservice);
- generate_service_rest(tservice);
- generate_service_client(tservice);
- generate_service_processor(tservice);
-
- // Close service file
- f_service_ << "1;" << endl;
- f_service_.close();
-}
-
-/**
- * Generates a service server definition.
- *
- * @param tservice The service to generate a server for.
- */
-void t_perl_generator::generate_service_processor(t_service* tservice) {
- // Generate the dispatch methods
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::iterator f_iter;
-
- string extends = "";
- string extends_processor = "";
- t_service* extends_s = tservice->get_extends();
- if (extends_s != NULL) {
- extends = perl_namespace(extends_s->get_program()) + extends_s->get_name();
- extends_processor = "use base qw(" + extends + "Processor);";
- }
-
- indent_up();
-
- // Generate the header portion
- f_service_ << "package " << perl_namespace(program_) << service_name_ << "Processor;" << endl
- << endl << "use strict;" << endl << extends_processor << endl << endl;
-
- if (extends.empty()) {
- f_service_ << "sub new {" << endl;
-
- indent_up();
-
- f_service_ << indent() << "my ($classname, $handler) = @_;" << endl << indent()
- << "my $self = {};" << endl;
-
- f_service_ << indent() << "$self->{handler} = $handler;" << endl;
-
- f_service_ << indent() << "return bless ($self, $classname);" << endl;
-
- indent_down();
-
- f_service_ << "}" << endl << endl;
- }
-
- // Generate the server implementation
- f_service_ << "sub process {" << endl;
- indent_up();
-
- f_service_ << indent() << "my ($self, $input, $output) = @_;" << endl;
-
- f_service_ << indent() << "my $rseqid = 0;" << endl << indent() << "my $fname = undef;" << endl
- << indent() << "my $mtype = 0;" << endl << endl;
-
- f_service_ << indent() << "$input->readMessageBegin(\\$fname, \\$mtype, \\$rseqid);" << endl;
-
- // HOT: check for method implementation
- f_service_ << indent() << "my $methodname = 'process_'.$fname;" << endl << indent()
- << "if (!$self->can($methodname)) {" << endl;
- indent_up();
-
- f_service_ << indent() << "$input->skip(TType::STRUCT);" << endl << indent()
- << "$input->readMessageEnd();" << endl << indent()
- << "my $x = new TApplicationException('Function '.$fname.' not implemented.', "
- "TApplicationException::UNKNOWN_METHOD);" << endl << indent()
- << "$output->writeMessageBegin($fname, TMessageType::EXCEPTION, $rseqid);" << endl
- << indent() << "$x->write($output);" << endl << indent()
- << "$output->writeMessageEnd();" << endl << indent()
- << "$output->getTransport()->flush();" << endl << indent() << "return;" << endl;
-
- indent_down();
- f_service_ << indent() << "}" << endl << indent()
- << "$self->$methodname($rseqid, $input, $output);" << endl << indent() << "return 1;"
- << endl;
-
- indent_down();
-
- f_service_ << "}" << endl << endl;
-
- // Generate the process subfunctions
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- generate_process_function(tservice, *f_iter);
- }
-}
-
-/**
- * Generates a process function definition.
- *
- * @param tfunction The function to write a dispatcher for
- */
-void t_perl_generator::generate_process_function(t_service* tservice, t_function* tfunction) {
- // Open function
- f_service_ << "sub process_" << tfunction->get_name() << " {" << endl;
-
- indent_up();
-
- f_service_ << indent() << "my ($self, $seqid, $input, $output) = @_;" << endl;
-
- string argsname = perl_namespace(tservice->get_program()) + service_name_ + "_"
- + tfunction->get_name() + "_args";
- string resultname = perl_namespace(tservice->get_program()) + service_name_ + "_"
- + tfunction->get_name() + "_result";
-
- f_service_ << indent() << "my $args = new " << argsname << "();" << endl << indent()
- << "$args->read($input);" << endl;
-
- f_service_ << indent() << "$input->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() << "my $result = new " << resultname << "();" << endl;
- }
-
- // Try block for a function with exceptions
- if (xceptions.size() > 0) {
- f_service_ << indent() << "eval {" << endl;
- indent_up();
- }
-
- // Generate the function call
- t_struct* arg_struct = tfunction->get_arglist();
- const std::vector<t_field*>& fields = arg_struct->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- f_service_ << indent();
- if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void()) {
- f_service_ << "$result->{success} = ";
- }
- f_service_ << "$self->{handler}->" << tfunction->get_name() << "(";
- bool first = true;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- f_service_ << ", ";
- }
- f_service_ << "$args->" << (*f_iter)->get_name();
- }
- f_service_ << ");" << endl;
-
- if (!tfunction->is_oneway() && xceptions.size() > 0) {
- indent_down();
- for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
- f_service_ << indent() << "}; if( UNIVERSAL::isa($@,'"
- << perl_namespace((*x_iter)->get_type()->get_program())
- << (*x_iter)->get_type()->get_name() << "') ){ " << endl;
-
- indent_up();
- f_service_ << indent() << "$result->{" << (*x_iter)->get_name() << "} = $@;" << endl;
- f_service_ << indent() << "$@ = undef;" << endl;
- indent_down();
- f_service_ << indent();
- }
- f_service_ << "}" << endl;
-
- // catch-all for unexpected exceptions (THRIFT-3191)
- f_service_ << indent() << "if ($@) {" << endl;
- indent_up();
- f_service_ << indent() << "$@ =~ s/^\\s+|\\s+$//g;" << endl
- << indent() << "my $err = new TApplicationException(\"Unexpected Exception: \" . $@, TApplicationException::INTERNAL_ERROR);" << endl
- << indent() << "$output->writeMessageBegin('" << tfunction->get_name() << "', TMessageType::EXCEPTION, $seqid);" << endl
- << indent() << "$err->write($output);" << endl
- << indent() << "$output->writeMessageEnd();" << endl
- << indent() << "$output->getTransport()->flush();" << endl
- << indent() << "$@ = undef;" << 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;
- indent_down();
- f_service_ << "}" << endl;
- return;
- }
-
- // Serialize the reply
- f_service_ << indent() << "$output->writeMessageBegin('" << tfunction->get_name() << "', TMessageType::REPLY, $seqid);" << endl
- << indent() << "$result->write($output);" << endl
- << indent() << "$output->writeMessageEnd();" << endl
- << indent() << "$output->getTransport()->flush();" << endl;
-
- // Close function
- indent_down();
- f_service_ << "}" << endl << endl;
-}
-
-/**
- * Generates helper functions for a service.
- *
- * @param tservice The service to generate a header definition for
- */
-void t_perl_generator::generate_service_helpers(t_service* tservice) {
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::iterator f_iter;
-
- f_service_ << "# HELPER FUNCTIONS AND STRUCTURES" << endl << endl;
-
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- t_struct* ts = (*f_iter)->get_arglist();
- string name = ts->get_name();
- ts->set_name(service_name_ + "_" + name);
- generate_perl_struct_definition(f_service_, ts, false);
- generate_perl_function_helpers(*f_iter);
- ts->set_name(name);
- }
-}
-
-/**
- * Generates a struct and helpers for a function.
- *
- * @param tfunction The function
- */
-void t_perl_generator::generate_perl_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_perl_struct_definition(f_service_, &result, false);
-}
-
-/**
- * Generates a service interface definition.
- *
- * @param tservice The service to generate a header definition for
- */
-void t_perl_generator::generate_service_interface(t_service* tservice) {
- string extends_if = "";
- t_service* extends_s = tservice->get_extends();
- if (extends_s != NULL) {
- extends_if = "use base qw(" + perl_namespace(extends_s->get_program()) + extends_s->get_name()
- + "If);";
- }
-
- f_service_ << "package " << perl_namespace(program_) << service_name_ << "If;" << endl << endl
- << "use strict;" << endl << extends_if << 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) {
- f_service_ << "sub " << function_signature(*f_iter) << endl << " die 'implement interface';\n}"
- << endl << endl;
- }
- indent_down();
-}
-
-/**
- * Generates a REST interface
- */
-void t_perl_generator::generate_service_rest(t_service* tservice) {
- string extends = "";
- string extends_if = "";
- t_service* extends_s = tservice->get_extends();
- if (extends_s != NULL) {
- extends = extends_s->get_name();
- extends_if = "use base qw(" + perl_namespace(extends_s->get_program()) + extends_s->get_name()
- + "Rest);";
- }
- f_service_ << "package " << perl_namespace(program_) << service_name_ << "Rest;" << endl << endl
- << "use strict;" << endl << extends_if << endl << endl;
-
- if (extends.empty()) {
- f_service_ << "sub new {" << endl;
-
- indent_up();
-
- f_service_ << indent() << "my ($classname, $impl) = @_;" << endl << indent()
- << "my $self ={ impl => $impl };" << endl << endl << indent()
- << "return bless($self,$classname);" << endl;
-
- indent_down();
-
- f_service_ << "}" << endl << endl;
- }
-
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::iterator f_iter;
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- f_service_ << "sub " << (*f_iter)->get_name() << "{" << endl;
-
- indent_up();
-
- f_service_ << indent() << "my ($self, $request) = @_;" << endl << endl;
-
- const vector<t_field*>& args = (*f_iter)->get_arglist()->get_members();
- vector<t_field*>::const_iterator a_iter;
- for (a_iter = args.begin(); a_iter != args.end(); ++a_iter) {
- t_type* atype = get_true_type((*a_iter)->get_type());
- string req = "$request->{'" + (*a_iter)->get_name() + "'}";
- f_service_ << indent() << "my $" << (*a_iter)->get_name() << " = (" << req << ") ? " << req
- << " : undef;" << endl;
- if (atype->is_string() && ((t_base_type*)atype)->is_string_list()) {
- f_service_ << indent() << "my @" << (*a_iter)->get_name() << " = split(/,/, $"
- << (*a_iter)->get_name() << ");" << endl << indent() << "$"
- << (*a_iter)->get_name() << " = \\@" << (*a_iter)->get_name() << endl;
- }
- }
- f_service_ << indent() << "return $self->{impl}->" << (*f_iter)->get_name() << "("
- << argument_list((*f_iter)->get_arglist()) << ");" << endl;
- indent_down();
- indent(f_service_) << "}" << endl << endl;
- }
-}
-
-/**
- * Generates a service client definition.
- *
- * @param tservice The service to generate a server for.
- */
-void t_perl_generator::generate_service_client(t_service* tservice) {
- string extends = "";
- string extends_client = "";
- t_service* extends_s = tservice->get_extends();
- if (extends_s != NULL) {
- extends = perl_namespace(extends_s->get_program()) + extends_s->get_name();
- extends_client = "use base qw(" + extends + "Client);";
- }
-
- f_service_ << "package " << perl_namespace(program_) << service_name_ << "Client;" << endl << endl
- << extends_client << endl << "use base qw(" << perl_namespace(program_)
- << service_name_ << "If);" << endl;
-
- // Constructor function
- f_service_ << "sub new {" << endl;
-
- indent_up();
-
- f_service_ << indent() << "my ($classname, $input, $output) = @_;" << endl << indent()
- << "my $self = {};" << endl;
-
- if (!extends.empty()) {
- f_service_ << indent() << "$self = $classname->SUPER::new($input, $output);" << endl;
- } else {
- f_service_ << indent() << "$self->{input} = $input;" << endl << indent()
- << "$self->{output} = defined $output ? $output : $input;" << endl << indent()
- << "$self->{seqid} = 0;" << endl;
- }
-
- f_service_ << indent() << "return bless($self,$classname);" << endl;
-
- indent_down();
-
- f_service_ << "}" << endl << endl;
-
- // Generate client method implementations
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::const_iterator f_iter;
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- t_struct* arg_struct = (*f_iter)->get_arglist();
- const vector<t_field*>& fields = arg_struct->get_members();
- vector<t_field*>::const_iterator fld_iter;
- string funname = (*f_iter)->get_name();
-
- // Open function
- f_service_ << "sub " << function_signature(*f_iter) << endl;
-
- indent_up();
-
- indent(f_service_) << indent() << "$self->send_" << funname << "(";
-
- bool first = true;
- for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
- if (first) {
- first = false;
- } else {
- f_service_ << ", ";
- }
- f_service_ << "$" << (*fld_iter)->get_name();
- }
- f_service_ << ");" << endl;
-
- if (!(*f_iter)->is_oneway()) {
- f_service_ << indent();
- if (!(*f_iter)->get_returntype()->is_void()) {
- f_service_ << "return ";
- }
- f_service_ << "$self->recv_" << funname << "();" << endl;
- }
-
- indent_down();
-
- f_service_ << "}" << endl << endl;
-
- f_service_ << "sub send_" << function_signature(*f_iter) << endl;
-
- indent_up();
-
- std::string argsname = perl_namespace(tservice->get_program()) + service_name_ + "_"
- + (*f_iter)->get_name() + "_args";
-
- // Serialize the request header
- f_service_ << indent() << "$self->{output}->writeMessageBegin('" << (*f_iter)->get_name()
- << "', " << ((*f_iter)->is_oneway() ? "TMessageType::ONEWAY" : "TMessageType::CALL")
- << ", $self->{seqid});" << endl;
-
- f_service_ << indent() << "my $args = new " << argsname << "();" << endl;
-
- for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
- f_service_ << indent() << "$args->{" << (*fld_iter)->get_name() << "} = $"
- << (*fld_iter)->get_name() << ";" << endl;
- }
-
- // Write to the stream
- f_service_ << indent() << "$args->write($self->{output});" << endl << indent()
- << "$self->{output}->writeMessageEnd();" << endl << indent()
- << "$self->{output}->getTransport()->flush();" << endl;
-
- indent_down();
-
- f_service_ << "}" << endl;
-
- if (!(*f_iter)->is_oneway()) {
- std::string resultname = perl_namespace(tservice->get_program()) + service_name_ + "_"
- + (*f_iter)->get_name() + "_result";
- t_struct noargs(program_);
-
- t_function recv_function((*f_iter)->get_returntype(),
- string("recv_") + (*f_iter)->get_name(),
- &noargs);
- // Open function
- f_service_ << endl << "sub " << function_signature(&recv_function) << endl;
-
- indent_up();
-
- f_service_ << indent() << "my $rseqid = 0;" << endl << indent() << "my $fname;" << endl
- << indent() << "my $mtype = 0;" << endl << endl;
-
- f_service_ << indent() << "$self->{input}->readMessageBegin(\\$fname, \\$mtype, \\$rseqid);"
- << endl << indent() << "if ($mtype == TMessageType::EXCEPTION) {" << endl
- << indent() << " my $x = new TApplicationException();" << endl << indent()
- << " $x->read($self->{input});" << endl << indent()
- << " $self->{input}->readMessageEnd();" << endl << indent() << " die $x;" << endl
- << indent() << "}" << endl;
-
- f_service_ << indent() << "my $result = new " << resultname << "();" << endl << indent()
- << "$result->read($self->{input});" << endl;
-
- f_service_ << indent() << "$self->{input}->readMessageEnd();" << endl << endl;
-
- // Careful, only return result if not a void function
- if (!(*f_iter)->get_returntype()->is_void()) {
- f_service_ << indent() << "if (defined $result->{success} ) {" << endl << indent()
- << " return $result->{success};" << 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 (defined $result->{" << (*x_iter)->get_name() << "}) {"
- << endl << indent() << " die $result->{" << (*x_iter)->get_name() << "};"
- << endl << indent() << "}" << endl;
- }
-
- // Careful, only return _result if not a void function
- if ((*f_iter)->get_returntype()->is_void()) {
- indent(f_service_) << "return;" << endl;
- } else {
- f_service_ << indent() << "die \"" << (*f_iter)->get_name() << " failed: unknown result\";"
- << endl;
- }
-
- // Close function
- indent_down();
- f_service_ << "}" << endl;
- }
- }
-}
-
-/**
- * Deserializes a field of any type.
- */
-void t_perl_generator::generate_deserialize_field(ofstream& out,
- t_field* tfield,
- string prefix,
- bool inclass) {
- (void)inclass;
- t_type* type = get_true_type(tfield->get_type());
-
- if (type->is_void()) {
- throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " + prefix + tfield->get_name();
- }
-
- string name = tfield->get_name();
-
- // Hack for when prefix is defined (always a hash ref)
- if (!prefix.empty()) {
- name = prefix + "{" + tfield->get_name() + "}";
- }
-
- if (type->is_struct() || type->is_xception()) {
- generate_deserialize_struct(out, (t_struct*)type, name);
- } else if (type->is_container()) {
- generate_deserialize_container(out, type, name);
- } else if (type->is_base_type() || type->is_enum()) {
- indent(out) << "$xfer += $input->";
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_VOID:
- throw "compiler error: cannot serialize void field in a struct: " + name;
- break;
- case t_base_type::TYPE_STRING:
- out << "readString(\\$" << name << ");";
- break;
- case t_base_type::TYPE_BOOL:
- out << "readBool(\\$" << name << ");";
- break;
- case t_base_type::TYPE_BYTE:
- out << "readByte(\\$" << name << ");";
- break;
- case t_base_type::TYPE_I16:
- out << "readI16(\\$" << name << ");";
- break;
- case t_base_type::TYPE_I32:
- out << "readI32(\\$" << name << ");";
- break;
- case t_base_type::TYPE_I64:
- out << "readI64(\\$" << name << ");";
- break;
- case t_base_type::TYPE_DOUBLE:
- out << "readDouble(\\$" << name << ");";
- break;
- default:
- throw "compiler error: no PERL name for base type " + t_base_type::t_base_name(tbase);
- }
- } else if (type->is_enum()) {
- out << "readI32(\\$" << name << ");";
- }
- 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_perl_generator::generate_deserialize_struct(ofstream& out,
- t_struct* tstruct,
- string prefix) {
- out << indent() << "$" << prefix << " = new " << perl_namespace(tstruct->get_program())
- << tstruct->get_name() << "();" << endl << indent() << "$xfer += $" << prefix
- << "->read($input);" << endl;
-}
-
-void t_perl_generator::generate_deserialize_container(ofstream& out, t_type* ttype, string prefix) {
- scope_up(out);
-
- string size = tmp("_size");
- string ktype = tmp("_ktype");
- string vtype = tmp("_vtype");
- string etype = tmp("_etype");
-
- 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() << "my $" << size << " = 0;" << endl;
-
- // Declare variables, read header
- if (ttype->is_map()) {
- out << indent() << "$" << prefix << " = {};" << endl << indent() << "my $" << ktype << " = 0;"
- << endl << indent() << "my $" << vtype << " = 0;" << endl;
-
- out << indent() << "$xfer += $input->readMapBegin("
- << "\\$" << ktype << ", \\$" << vtype << ", \\$" << size << ");" << endl;
-
- } else if (ttype->is_set()) {
-
- out << indent() << "$" << prefix << " = {};" << endl << indent() << "my $" << etype << " = 0;"
- << endl << indent() << "$xfer += $input->readSetBegin("
- << "\\$" << etype << ", \\$" << size << ");" << endl;
-
- } else if (ttype->is_list()) {
-
- out << indent() << "$" << prefix << " = [];" << endl << indent() << "my $" << etype << " = 0;"
- << endl << indent() << "$xfer += $input->readListBegin("
- << "\\$" << etype << ", \\$" << size << ");" << endl;
- }
-
- // For loop iterates over elements
- string i = tmp("_i");
- indent(out) << "for (my $" << i << " = 0; $" << i << " < $" << size << "; ++$" << 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) << "$xfer += $input->readMapEnd();" << endl;
- } else if (ttype->is_set()) {
- indent(out) << "$xfer += $input->readSetEnd();" << endl;
- } else if (ttype->is_list()) {
- indent(out) << "$xfer += $input->readListEnd();" << endl;
- }
-
- scope_down(out);
-}
-
-/**
- * Generates code to deserialize a map
- */
-void t_perl_generator::generate_deserialize_map_element(ofstream& out, t_map* tmap, string prefix) {
- string key = tmp("key");
- string val = tmp("val");
- t_field fkey(tmap->get_key_type(), key);
- t_field fval(tmap->get_val_type(), val);
-
- indent(out) << declare_field(&fkey, true, true) << endl;
- indent(out) << declare_field(&fval, true, true) << endl;
-
- generate_deserialize_field(out, &fkey);
- generate_deserialize_field(out, &fval);
-
- indent(out) << "$" << prefix << "->{$" << key << "} = $" << val << ";" << endl;
-}
-
-void t_perl_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) << "my $" << elem << " = undef;" << endl;
-
- generate_deserialize_field(out, &felem);
-
- indent(out) << "$" << prefix << "->{$" << elem << "} = 1;" << endl;
-}
-
-void t_perl_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) << "my $" << elem << " = undef;" << endl;
-
- generate_deserialize_field(out, &felem);
-
- indent(out) << "push(@{$" << prefix << "},$" << elem << ");" << endl;
-}
-
-/**
- * Serializes a field of any type.
- *
- * @param tfield The field to serialize
- * @param prefix Name to prepend to field name
- */
-void t_perl_generator::generate_serialize_field(ofstream& out, t_field* tfield, string prefix) {
- t_type* type = get_true_type(tfield->get_type());
-
- // Do nothing for void types
- if (type->is_void()) {
- throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " + prefix + tfield->get_name();
- }
-
- if (type->is_struct() || type->is_xception()) {
- generate_serialize_struct(out, (t_struct*)type, prefix + "{" + tfield->get_name() + "}");
- } else if (type->is_container()) {
- generate_serialize_container(out, type, prefix + "{" + tfield->get_name() + "}");
- } else if (type->is_base_type() || type->is_enum()) {
-
- string name = tfield->get_name();
-
- // Hack for when prefix is defined (always a hash ref)
- if (!prefix.empty())
- name = prefix + "{" + tfield->get_name() + "}";
-
- indent(out) << "$xfer += $output->";
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_VOID:
- throw "compiler error: cannot serialize void field in a struct: " + name;
- break;
- case t_base_type::TYPE_STRING:
- out << "writeString($" << 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 PERL name for base type " + t_base_type::t_base_name(tbase);
- }
- } else if (type->is_enum()) {
- out << "writeI32($" << name << ");";
- }
- out << endl;
-
- } else {
- printf("DO NOT KNOW HOW TO SERIALIZE FIELD '%s%s' TYPE '%s'\n",
- prefix.c_str(),
- tfield->get_name().c_str(),
- type->get_name().c_str());
- }
-}
-
-/**
- * Serializes all the members of a struct.
- *
- * @param tstruct The struct to serialize
- * @param prefix String prefix to attach to all fields
- */
-void t_perl_generator::generate_serialize_struct(ofstream& out, t_struct* tstruct, string prefix) {
- (void)tstruct;
- indent(out) << "$xfer += $" << prefix << "->write($output);" << endl;
-}
-
-/**
- * Writes out a container
- */
-void t_perl_generator::generate_serialize_container(ofstream& out, t_type* ttype, string prefix) {
- scope_up(out);
-
- if (ttype->is_map()) {
- indent(out) << "$xfer += $output->writeMapBegin("
- << type_to_enum(((t_map*)ttype)->get_key_type()) << ", "
- << type_to_enum(((t_map*)ttype)->get_val_type()) << ", "
- << "scalar(keys %{$" << prefix << "}));" << endl;
- } else if (ttype->is_set()) {
- indent(out) << "$xfer += $output->writeSetBegin("
- << type_to_enum(((t_set*)ttype)->get_elem_type()) << ", "
- << "scalar(@{$" << prefix << "}));" << endl;
-
- } else if (ttype->is_list()) {
-
- indent(out) << "$xfer += $output->writeListBegin("
- << type_to_enum(((t_list*)ttype)->get_elem_type()) << ", "
- << "scalar(@{$" << prefix << "}));" << endl;
- }
-
- scope_up(out);
-
- if (ttype->is_map()) {
- string kiter = tmp("kiter");
- string viter = tmp("viter");
- indent(out) << "while( my ($" << kiter << ",$" << viter << ") = each %{$" << prefix << "}) "
- << endl;
-
- scope_up(out);
- generate_serialize_map_element(out, (t_map*)ttype, kiter, viter);
- scope_down(out);
-
- } else if (ttype->is_set()) {
- string iter = tmp("iter");
- indent(out) << "foreach my $" << iter << " (@{$" << prefix << "})" << endl;
- scope_up(out);
- generate_serialize_set_element(out, (t_set*)ttype, iter);
- scope_down(out);
-
- } else if (ttype->is_list()) {
- string iter = tmp("iter");
- indent(out) << "foreach my $" << iter << " (@{$" << prefix << "}) " << endl;
- scope_up(out);
- generate_serialize_list_element(out, (t_list*)ttype, iter);
- scope_down(out);
- }
-
- scope_down(out);
-
- if (ttype->is_map()) {
- indent(out) << "$xfer += $output->writeMapEnd();" << endl;
- } else if (ttype->is_set()) {
- indent(out) << "$xfer += $output->writeSetEnd();" << endl;
- } else if (ttype->is_list()) {
- indent(out) << "$xfer += $output->writeListEnd();" << endl;
- }
-
- scope_down(out);
-}
-
-/**
- * Serializes the members of a map.
- *
- */
-void t_perl_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_perl_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_perl_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_perl_generator::declare_field(t_field* tfield, bool init, bool obj) {
- string result = "my $" + 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:
- result += " = ''";
- break;
- case t_base_type::TYPE_BOOL:
- result += " = 0";
- break;
- case t_base_type::TYPE_BYTE:
- case t_base_type::TYPE_I16:
- case t_base_type::TYPE_I32:
- case t_base_type::TYPE_I64:
- result += " = 0";
- break;
- case t_base_type::TYPE_DOUBLE:
- result += " = 0.0";
- break;
- default:
- throw "compiler error: no PERL initializer for base type "
- + t_base_type::t_base_name(tbase);
- }
- } else if (type->is_enum()) {
- result += " = 0";
- } else if (type->is_container()) {
- result += " = []";
- } else if (type->is_struct() || type->is_xception()) {
- if (obj) {
- result += " = new " + perl_namespace(type->get_program()) + type->get_name() + "()";
- } else {
- result += " = undef";
- }
- }
- }
- return result + ";";
-}
-
-/**
- * Renders a function signature of the form 'type name(args)'
- *
- * @param tfunction Function definition
- * @return String of rendered function definition
- */
-string t_perl_generator::function_signature(t_function* tfunction, string prefix) {
-
- string str;
-
- str = prefix + tfunction->get_name() + "{\n";
- str += " my $self = shift;\n";
-
- // Need to create perl function arg inputs
- const vector<t_field*>& fields = tfunction->get_arglist()->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- str += " my $" + (*f_iter)->get_name() + " = shift;\n";
- }
-
- return str;
-}
-
-/**
- * Renders a field list
- */
-string t_perl_generator::argument_list(t_struct* tstruct) {
- string result = "";
-
- const vector<t_field*>& fields = tstruct->get_members();
- vector<t_field*>::const_iterator f_iter;
- bool first = true;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- result += ", ";
- }
- result += "$" + (*f_iter)->get_name();
- }
- return result;
-}
-
-/**
- * Converts the parse type to a C++ enum string for the given type.
- */
-string t_perl_generator::type_to_enum(t_type* type) {
- type = get_true_type(type);
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_VOID:
- throw "NO T_VOID CONSTRUCT";
- case t_base_type::TYPE_STRING:
- return "TType::STRING";
- case t_base_type::TYPE_BOOL:
- return "TType::BOOL";
- case t_base_type::TYPE_BYTE:
- return "TType::BYTE";
- case t_base_type::TYPE_I16:
- return "TType::I16";
- case t_base_type::TYPE_I32:
- return "TType::I32";
- case t_base_type::TYPE_I64:
- return "TType::I64";
- case t_base_type::TYPE_DOUBLE:
- return "TType::DOUBLE";
- }
- } else if (type->is_enum()) {
- return "TType::I32";
- } else if (type->is_struct() || type->is_xception()) {
- return "TType::STRUCT";
- } else if (type->is_map()) {
- return "TType::MAP";
- } else if (type->is_set()) {
- return "TType::SET";
- } else if (type->is_list()) {
- return "TType::LIST";
- }
-
- throw "INVALID TYPE IN type_to_enum: " + type->get_name();
-}
-
-THRIFT_REGISTER_GENERATOR(perl, "Perl", "")