Variant.cpp
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00001 /******************************************************************************
00002  * Copyright (C) 2014 by Ralf Kaestner                                        *
00003  * ralf.kaestner@gmail.com                                                    *
00004  *                                                                            *
00005  * This program is free software; you can redistribute it and/or modify       *
00006  * it under the terms of the Lesser GNU General Public License as published by*
00007  * the Free Software Foundation; either version 3 of the License, or          *
00008  * (at your option) any later version.                                        *
00009  *                                                                            *
00010  * This program is distributed in the hope that it will be useful,            *
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the               *
00013  * Lesser GNU General Public License for more details.                        *
00014  *                                                                            *
00015  * You should have received a copy of the Lesser GNU General Public License   *
00016  * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
00017  ******************************************************************************/
00018 
00019 #include "variant_topic_tools/ArrayVariant.h"
00020 #include "variant_topic_tools/BuiltinVariant.h"
00021 #include "variant_topic_tools/CollectionVariant.h"
00022 #include "variant_topic_tools/MessageVariant.h"
00023 #include "variant_topic_tools/Serializer.h"
00024 #include "variant_topic_tools/Variant.h"
00025 
00026 namespace variant_topic_tools {
00027 
00028 /*****************************************************************************/
00029 /* Constructors and Destructor                                               */
00030 /*****************************************************************************/
00031 
00032 Variant::Variant() {
00033 }
00034 
00035 Variant::Variant(const DataType& type) :
00036   type(type) {
00037 }
00038 
00039 Variant::~Variant() {
00040 }
00041 
00042 Variant::Value::Value() {
00043 }
00044 
00045 Variant::Value::~Value() {
00046 }
00047 
00048 /*****************************************************************************/
00049 /* Accessors                                                                 */
00050 /*****************************************************************************/
00051 
00052 const DataType& Variant::getType() const {
00053   return type;
00054 }
00055 
00056 const std::type_info& Variant::getValueTypeInfo() const {
00057   if (value)
00058     return value->getTypeInfo();
00059   else
00060     return typeid(void);
00061 }
00062 
00063 bool Variant::hasType() const {
00064   return type.isValid();
00065 }
00066 
00067 bool Variant::isArray() const {
00068   if (value)
00069     return boost::dynamic_pointer_cast<ArrayVariant::Value>(value) != nullptr;
00070   else
00071     return false;
00072 }
00073 
00074 bool Variant::isBuiltin() const {
00075   if (value)
00076     return boost::dynamic_pointer_cast<BuiltinVariant::Value>(value) != nullptr;
00077   else
00078     return false;
00079 }
00080 
00081 bool Variant::isCollection() const {
00082   if (value)
00083     return boost::dynamic_pointer_cast<CollectionVariant::Value>(value) != nullptr;
00084   else
00085     return false;
00086 }
00087 
00088 bool Variant::isMessage() const {
00089   if (value)
00090     return boost::dynamic_pointer_cast<MessageVariant::Value>(value) != nullptr;
00091   else
00092     return false;
00093 }
00094 
00095 bool Variant::isEmpty() const {
00096   return !value;
00097 }
00098 
00099 const std::type_info& Variant::Value::getTypeInfo() const {
00100   return typeid(void);
00101 }
00102 
00103 /*****************************************************************************/
00104 /* Methods                                                                   */
00105 /*****************************************************************************/
00106 
00107 ArrayVariant Variant::asArray() const {
00108   return ArrayVariant(*this);
00109 }
00110 
00111 BuiltinVariant Variant::asBuiltin() const {
00112   return BuiltinVariant(*this);
00113 }
00114 
00115 CollectionVariant Variant::asCollection() const {
00116   return CollectionVariant(*this);
00117 }
00118 
00119 MessageVariant Variant::asMessage() const {
00120   return MessageVariant(*this);
00121 }
00122 
00123 void Variant::clear() {
00124   type.clear();
00125   value.reset();
00126 }
00127 
00128 void Variant::read(std::istream& stream) {
00129   if (value)
00130     value->read(stream);
00131 }
00132 
00133 void Variant::write(std::ostream& stream) const {
00134   if (value)
00135     value->write(stream);
00136 }
00137 
00138 Serializer Variant::createSerializer() const {
00139   if (value)
00140     return value->createSerializer(type);
00141   else
00142     return Serializer();
00143 }
00144 
00145 /*****************************************************************************/
00146 /* Operators                                                                 */
00147 /*****************************************************************************/
00148 
00149 std::istream& operator>>(std::istream& stream, Variant& variant) {
00150   variant.read(stream);
00151   return stream;
00152 }
00153 
00154 std::ostream& operator<<(std::ostream& stream, const Variant& variant) {
00155   variant.write(stream);
00156   return stream;
00157 }
00158 
00159 }


variant_topic_tools
Author(s): Ralf Kaestner
autogenerated on Tue Jul 9 2019 03:18:42