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/* Heap-allocation free & small memory footprint
* std::function alternative with limited capabilities.
*/ // example
/* Copyright (c) 2026 dyknon
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the " Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice
* (including the next paragraph) shall be included in all copies
* or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "thinfunc.h"
#include <print>
#include <string>
#include <ctime>
using namespace tf;
struct test{
std::string name;
test(std::string name): name(name){}
anchor<test, void()> m1;
func<void()>& get_m1(){
return m1.bind<&test::m1, &test::message1>();
}
anchor<test, void(std::string)> m2;
func<void(std::string)>& get_m2(){
return m2.bind<&test::m2, &test::message2>();
}
anchor<test, std::string()> t;
func<std::string()>& get_t(){
return t.bind<&test::t, &test::time>();
}
void message1(){
std::println("hello! I'm {}.", name);
}
void message2(std::string time){
std::println("Good {}! I'm {}.", time, name);
}
std::string time(){
auto t = std::time(nullptr);
t /= 60 * 60;
t %= 24;
if(t < 5){
return "night";
}else if(t < 12){
return "morning";
}else if(t < 18){
return "afternoon";
}else if(t < 20){
return "evening";
}else{
return "night";
}
}
};
int main(){
test o("a test object");
func<void()>& m1 = o.get_m1();
func<void(std::string)>& m2 = o.get_m2();
o.get_t();
func<std::string()>& t = o.t.assume_bound<&test::t, &test::time>();
m1();
m2(t());
return 0;
}
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