17 KiB
17 KiB
t00026 - Template memento pattern
Config
compilation_database_dir: ..
output_directory: diagrams
diagrams:
t00026_class:
type: class
glob:
- ../../tests/t00026/t00026.cc
using_namespace:
- clanguml::t00026
include:
namespaces:
- clanguml::t00026
Source code
File t00026.cc
#include <iostream>
#include <memory>
#include <unordered_map>
namespace clanguml {
namespace t00026 {
template <typename T> class Memento {
public:
Memento(T &&v)
: m_value(std::forward<T>(v))
{
}
T value() const { return m_value; }
private:
T m_value;
};
template <typename T> class Originator {
public:
Originator(T &&v)
: m_value(std::forward<T>(v))
{
}
Memento<T> memoize_value() const { return Memento<T>{m_value}; }
void load(const Memento<T> &m) { m_value = m.value(); }
void print() const { std::cout << m_value << std::endl; }
void set(T &&v) { m_value = std::forward<T>(v); }
private:
T m_value;
};
template <typename T> class Caretaker {
public:
Memento<T> &state(const std::string &n) { return m_mementos.at(n); }
void set_state(const std::string &s, Memento<T> &&m)
{
m_mementos.try_emplace(s, std::move(m));
}
private:
std::unordered_map<std::string, Memento<T>> m_mementos;
};
struct StringMemento {
Caretaker<std::string> caretaker;
Originator<std::string> originator;
};
} // namespace t00026
} // namespace clanguml
Generated PlantUML diagrams
Generated Mermaid diagrams
Generated JSON models
{
"diagram_type": "class",
"elements": [
{
"bases": [],
"display_name": "clanguml::t00026::Memento<T>",
"id": "1241204213727905390",
"is_abstract": false,
"is_nested": false,
"is_struct": false,
"is_template": true,
"is_union": false,
"members": [
{
"access": "private",
"is_static": false,
"name": "m_value",
"source_location": {
"column": 7,
"file": "../../tests/t00026/t00026.cc",
"line": 18,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "T"
}
],
"methods": [
{
"access": "public",
"is_const": false,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": true,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "Memento",
"parameters": [
{
"name": "v",
"type": "T &&"
}
],
"source_location": {
"column": 5,
"file": "../../tests/t00026/t00026.cc",
"line": 10,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "void"
},
{
"access": "public",
"is_const": true,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": false,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "value",
"parameters": [],
"source_location": {
"column": 7,
"file": "../../tests/t00026/t00026.cc",
"line": 15,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "T"
}
],
"name": "Memento",
"namespace": "clanguml::t00026",
"source_location": {
"column": 29,
"file": "../../tests/t00026/t00026.cc",
"line": 8,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"template_parameters": [
{
"is_variadic": false,
"kind": "template_type",
"name": "T",
"template_parameters": []
}
],
"type": "class"
},
{
"bases": [],
"display_name": "clanguml::t00026::Originator<T>",
"id": "1324770803720816727",
"is_abstract": false,
"is_nested": false,
"is_struct": false,
"is_template": true,
"is_union": false,
"members": [
{
"access": "private",
"is_static": false,
"name": "m_value",
"source_location": {
"column": 7,
"file": "../../tests/t00026/t00026.cc",
"line": 37,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "T"
}
],
"methods": [
{
"access": "public",
"is_const": false,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": true,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "Originator",
"parameters": [
{
"name": "v",
"type": "T &&"
}
],
"source_location": {
"column": 5,
"file": "../../tests/t00026/t00026.cc",
"line": 23,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "void"
},
{
"access": "public",
"is_const": true,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": false,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "memoize_value",
"parameters": [],
"source_location": {
"column": 16,
"file": "../../tests/t00026/t00026.cc",
"line": 28,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "Memento<T>"
},
{
"access": "public",
"is_const": false,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": false,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "load",
"parameters": [
{
"name": "m",
"type": "const Memento<T> &"
}
],
"source_location": {
"column": 10,
"file": "../../tests/t00026/t00026.cc",
"line": 30,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "void"
},
{
"access": "public",
"is_const": true,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": false,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "print",
"parameters": [],
"source_location": {
"column": 10,
"file": "../../tests/t00026/t00026.cc",
"line": 32,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "void"
},
{
"access": "public",
"is_const": false,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": false,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "set",
"parameters": [
{
"name": "v",
"type": "T &&"
}
],
"source_location": {
"column": 10,
"file": "../../tests/t00026/t00026.cc",
"line": 34,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "void"
}
],
"name": "Originator",
"namespace": "clanguml::t00026",
"source_location": {
"column": 29,
"file": "../../tests/t00026/t00026.cc",
"line": 21,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"template_parameters": [
{
"is_variadic": false,
"kind": "template_type",
"name": "T",
"template_parameters": []
}
],
"type": "class"
},
{
"bases": [],
"display_name": "clanguml::t00026::Caretaker<T>",
"id": "2032715387182792204",
"is_abstract": false,
"is_nested": false,
"is_struct": false,
"is_template": true,
"is_union": false,
"members": [
{
"access": "private",
"is_static": false,
"name": "m_mementos",
"source_location": {
"column": 49,
"file": "../../tests/t00026/t00026.cc",
"line": 50,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "std::unordered_map<std::string,Memento<T>>"
}
],
"methods": [
{
"access": "public",
"is_const": false,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": false,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "state",
"parameters": [
{
"name": "n",
"type": "const std::string &"
}
],
"source_location": {
"column": 17,
"file": "../../tests/t00026/t00026.cc",
"line": 42,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "Memento<T> &"
},
{
"access": "public",
"is_const": false,
"is_consteval": false,
"is_constexpr": false,
"is_constructor": false,
"is_copy_assignment": false,
"is_defaulted": false,
"is_deleted": false,
"is_move_assignment": false,
"is_noexcept": false,
"is_operator": false,
"is_pure_virtual": false,
"is_static": false,
"is_virtual": false,
"name": "set_state",
"parameters": [
{
"name": "s",
"type": "const std::string &"
},
{
"name": "m",
"type": "Memento<T> &&"
}
],
"source_location": {
"column": 10,
"file": "../../tests/t00026/t00026.cc",
"line": 44,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "void"
}
],
"name": "Caretaker",
"namespace": "clanguml::t00026",
"source_location": {
"column": 29,
"file": "../../tests/t00026/t00026.cc",
"line": 40,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"template_parameters": [
{
"is_variadic": false,
"kind": "template_type",
"name": "T",
"template_parameters": []
}
],
"type": "class"
},
{
"bases": [],
"display_name": "clanguml::t00026::Caretaker<std::string>",
"id": "1708482137721157489",
"is_abstract": false,
"is_nested": false,
"is_struct": false,
"is_template": true,
"is_union": false,
"members": [],
"methods": [],
"name": "Caretaker",
"namespace": "clanguml::t00026",
"source_location": {
"column": 29,
"file": "../../tests/t00026/t00026.cc",
"line": 40,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"template_parameters": [
{
"is_variadic": false,
"kind": "argument",
"template_parameters": [],
"type": "std::string"
}
],
"type": "class"
},
{
"bases": [],
"display_name": "clanguml::t00026::Originator<std::string>",
"id": "1014247960805363560",
"is_abstract": false,
"is_nested": false,
"is_struct": false,
"is_template": true,
"is_union": false,
"members": [],
"methods": [],
"name": "Originator",
"namespace": "clanguml::t00026",
"source_location": {
"column": 29,
"file": "../../tests/t00026/t00026.cc",
"line": 21,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"template_parameters": [
{
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"kind": "argument",
"template_parameters": [],
"type": "std::string"
}
],
"type": "class"
},
{
"bases": [],
"display_name": "clanguml::t00026::StringMemento",
"id": "851750942915129289",
"is_abstract": false,
"is_nested": false,
"is_struct": true,
"is_template": false,
"is_union": false,
"members": [
{
"access": "public",
"is_static": false,
"name": "caretaker",
"source_location": {
"column": 28,
"file": "../../tests/t00026/t00026.cc",
"line": 54,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "Caretaker<std::string>"
},
{
"access": "public",
"is_static": false,
"name": "originator",
"source_location": {
"column": 29,
"file": "../../tests/t00026/t00026.cc",
"line": 55,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"type": "Originator<std::string>"
}
],
"methods": [],
"name": "StringMemento",
"namespace": "clanguml::t00026",
"source_location": {
"column": 8,
"file": "../../tests/t00026/t00026.cc",
"line": 53,
"translation_unit": "../../tests/t00026/t00026.cc"
},
"template_parameters": [],
"type": "class"
}
],
"metadata": {
"clang_uml_version": "0.4.0-28-g03ac212",
"llvm_version": "Ubuntu clang version 16.0.6 (++20230710042027+7cbf1a259152-1~exp1~20230710162048.105)",
"schema_version": 1
},
"name": "t00026_class",
"relationships": [
{
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"destination": "1241204213727905390",
"source": "1324770803720816727",
"type": "dependency"
},
{
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"label": "m_mementos",
"source": "2032715387182792204",
"type": "aggregation"
},
{
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},
{
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},
{
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"type": "aggregation"
},
{
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"label": "originator",
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"type": "aggregation"
}
],
"using_namespace": "clanguml::t00026"
}