A Cell that caches the value of another Cell. More...

Inheritance diagram for live_cells::store_cell< C, State >:

Collaboration diagram for live_cells::store_cell< C, State >:

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Public Types
typedef C::value_type	value_type
	The type of value held by this cell.

Public Member Functions
	store_cell (C cell)
	Create a store cell that caches the value of cell.

value_type	value () const
	Get the value of the cell.

value_type	operator() () const
	Get the value of the cell and track it as a dependency.

Public Member Functions inherited from live_cells::stateful_cell< S >
template<typename... Args>
	stateful_cell (key_ref k, Args... args)
	Create a stateful cell and associate it with a state.

key_ref	key () const
	Get the key identifying the cell.

void	add_observer (observer::ref o) const
	Add an observer to the cell.

void	remove_observer (observer::ref o) const
	Remove an observer from the cell.

Additional Inherited Members
Protected Attributes inherited from live_cells::stateful_cell< S >
const key_ref	key_
	Key identifying the cell.

std::shared_ptr< S >	state
	Reference to the cell's state.

Detailed Description

template<Cell C, typename State = store_cell_state<C>>
class live_cells::store_cell< C, State >

A Cell that caches the value of another Cell.

This cell reads the value of another cell and caches it until it changes.

This is useful to cache the computed value of a lightweight computed cell, which would otherwise be recomputed every time it is accessed.

Constructor & Destructor Documentation

template<Cell C, typename State = store_cell_state<C>>

live_cells::store_cell< C, State >::store_cell ( C cell )

inline

Create a store cell that caches the value of cell.

Parameters

cell	The argument cell.

template<Cell C, typename State = store_cell_state<C>>

value_type live_cells::store_cell< C, State >::operator() ( ) const

inline

Get the value of the cell and track it as a dependency.

template<Cell C, typename State = store_cell_state<C>>

value_type live_cells::store_cell< C, State >::value ( ) const

inline

Get the value of the cell.

The documentation for this class was generated from the following file: