PropertyValueType Concept Reference

A C++20 property system for arbitrary key-value storage with type safety. More...

#include <property_holder.h>

Concept definition

template<typename T>
concept PropertyValueType =  std::copy_constructible<T> && std::destructible<T>

Detailed Description

A C++20 property system for arbitrary key-value storage with type safety.

This class provides a flexible way to store arbitrary typed properties using string keys. It supports type-safe getters/setters with automatic type checking and optional default values.

Example usage:

PROPERTY_HOLDER props;
 
// Setting properties
props.SetProperty("persist", true);
props.SetProperty("max_width", 500);
props.SetProperty("label", std::string("My Label"));
 
// Getting properties with type checking
if (auto persist = props.GetProperty<bool>("persist")) {
    std::cout << "Persist: " << *persist << std::endl;
}
 
// Getting with default value
bool shouldPersist = props.GetPropertyOr("persist", false);
int width = props.GetPropertyOr("max_width", 100);
 
// Checking existence
if (props.HasProperty("label")) {
    // Property exists
}
 
// Removing properties
props.RemoveProperty("label");
props.Clear();

Concept for types that can be used as property values

Definition at line 77 of file property_holder.h.