Template Class Computed

• Defined in File Reactivity.hpp

Inheritance Relationships

Base Type

• public Cacao::Reactivity::Dependency (Class Dependency)

Class Documentation

template<astra::Serializable T>
class Computed : public Cacao::Reactivity::Dependency

A piece of state whose value is computed when needed and cached between updates.

Public Functions

inline Computed(std::initializer_list<Dependency*> inputs, std::function<T(void)> evaluator)

Create a new piece of computed state from a source.

Parameters:

• inputs – The dependencies that should trigger a re-evaluation of the value; only these values can be accessed during computation

• evaluator – The function to perform the evaluation

inline operator const T&() const

Get the current value.

Returns:

The current held value

inline const T *operator->() const

Access the current value in a read-only manner.