FunctionCache.h File Reference

Memoization wrapper for stateless callables. More...

#include <flat_map>
#include <type_traits>
#include <utility>
#include <functional>
#include <ranges>
#include "Raven/Core/MemoryTracker.h"

Classes
struct	Raven::function_traits< ReturnType(ClassType::*)(Args...) const >
	Specialization of function_traits for const (non-mutable) lambdas and functors. More...
struct	Raven::function_traits< ReturnType(ClassType::*)(Args...)>
	Specialization of function_traits for mutable lambdas and functors. More...
struct	Raven::function_traits< ReturnType(*)(Args...)>
	Specialization of function_traits for raw function pointers. More...
class	Raven::function_cache< Callable >
	Memoization wrapper for a stateless callable. More...

Namespaces
namespace	Raven

Detailed Description

Memoization wrapper for stateless callables.

Provides function_cache, a template class that wraps a stateless callable and caches its return values in a std::flat_map keyed by argument tuple. Subsequent calls with identical arguments return the cached result directly.

Warning

Each instantiation generates roughly 150 lines of assembly. Only use where the call cost justifies the cache overhead. Not suitable for functions that modify values through references or pointers.