634 lines
17 KiB
Markdown
634 lines
17 KiB
Markdown
# t00026 - Template memento pattern
|
|
## Config
|
|
```yaml
|
|
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
|
|
```cpp
|
|
#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
|
|
```json
|
|
{
|
|
"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": [
|
|
{
|
|
"is_variadic": false,
|
|
"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": "0.4.1",
|
|
"llvm_version": "Ubuntu clang version 16.0.6 (++20230710042027+7cbf1a259152-1~exp1~20230710162048.105)",
|
|
"schema_version": 1
|
|
},
|
|
"name": "t00026_class",
|
|
"relationships": [
|
|
{
|
|
"access": "public",
|
|
"destination": "1241204213727905390",
|
|
"source": "1324770803720816727",
|
|
"type": "dependency"
|
|
},
|
|
{
|
|
"access": "private",
|
|
"destination": "1241204213727905390",
|
|
"label": "m_mementos",
|
|
"source": "2032715387182792204",
|
|
"type": "aggregation"
|
|
},
|
|
{
|
|
"access": "public",
|
|
"destination": "2032715387182792204",
|
|
"source": "1708482137721157489",
|
|
"type": "instantiation"
|
|
},
|
|
{
|
|
"access": "public",
|
|
"destination": "1324770803720816727",
|
|
"source": "1014247960805363560",
|
|
"type": "instantiation"
|
|
},
|
|
{
|
|
"access": "public",
|
|
"destination": "1708482137721157489",
|
|
"label": "caretaker",
|
|
"source": "851750942915129289",
|
|
"type": "aggregation"
|
|
},
|
|
{
|
|
"access": "public",
|
|
"destination": "1014247960805363560",
|
|
"label": "originator",
|
|
"source": "851750942915129289",
|
|
"type": "aggregation"
|
|
}
|
|
],
|
|
"using_namespace": "clanguml::t00026"
|
|
}
|
|
```
|