TeslaCN commented on issue #23614:
URL:
https://github.com/apache/shardingsphere/issues/23614#issuecomment-1515957638
```cpp
#include <iostream>
#include <map>
#include <string>
#include "set_var.h"
#include "sys_vars.h"
using namespace std;
string generateFlag(const sys_var *v);
string generateDefaultValue(sys_var *v);
int main() {
map<string, string> m;
for (sys_var *v = all_sys_vars.first; v; v = v->next) {
string name = v->name.str, generated;
for (char c : name) {
generated += (char)toupper(c);
}
generated += '(';
string flag = generateFlag(v);
generated += flag;
generated += ", ";
string def = generateDefaultValue(v);
generated += def + ')';
m[name] = ("\"TODO\"" == def ? "// " : "") + generated;
}
for (auto &iterator : m) {
cout << iterator.second << "," << endl << endl;
}
return 0;
}
string generateFlag(const sys_var *v) {
string flag;
if (v->scope() & sys_var::GLOBAL) flag += " | Flag.GLOBAL";
if (v->scope() & sys_var::SESSION) flag += " | Flag.SESSION";
if (v->scope() & sys_var::ONLY_SESSION) flag += " | Flag.ONLY_SESSION";
if (v->is_readonly()) flag += " | Flag.READONLY";
if (v->not_visible()) flag += " | Flag.INVISIBLE";
if (v->is_trilevel()) flag += " | Flag.TRI_LEVEL";
if (v->is_hint_updateable()) flag += " | Flag.HINT_UPDATEABLE";
if (v->is_persist_readonly()) flag += " | Flag.PERSIST_AS_READ_ONLY";
if (v->is_sensitive()) flag += " | Flag.SENSITIVE";
return flag.substr(3);
}
string generateDefaultValue(sys_var *v) {
stringstream stream;
stream << '"';
switch (v->get_option()->var_type) {
case GET_STR: {
char *c = reinterpret_cast<char *>(v->get_option()->def_value);
if (nullptr != c) stream << c;
break;
}
case GET_INT:
case GET_LONG:
case GET_LL:
case GET_UINT:
case GET_ULONG:
case GET_ULL:
case GET_BOOL: {
stream << v->get_option()->def_value;
break;
}
case GET_DOUBLE: {
stream << (double)v->get_option()->def_value;
break;
}
default: {
stream << "TODO";
}
}
stream << '"';
return stream.str();
}
```
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