Slot< Args > Class Template Reference

Type-safe callback slot that wraps a callable with optional ownership tracking. More...

#include <slot.h>

Classes
struct	removeConstAndRef
	Helper trait that strips const qualification and references from a type. More...

Public Types
using	Function = std::function< void(Args...)>
	Callable type that the slot wraps.
template<typename T >
using	RemoveConstAndRef = typename removeConstAndRef< T >::type
	Convenience alias for removeConstAndRef.

Public Member Functions
	Slot (const Function &func, void *owner=nullptr, const char *prototype=nullptr, int id=-1)
	Constructs a Slot with the given callable and optional metadata.
void *	owner () const
	Returns the owner pointer associated with this slot.
const char *	prototype () const
	Returns the prototype string associated with this slot.
int	id () const
	Returns the numeric identifier for this slot.
void	setID (int val)
	Sets the numeric identifier for this slot.
void	exec (Args... args)
	Executes the slot's callable with the given typed arguments.
void	exec (const VariantList &variantList)
	Executes the slot's callable by unpacking arguments from a VariantList.

Static Public Member Functions
static VariantList	pack (Args... args)
	Packs the given arguments into a VariantList.

Detailed Description

template<typename... Args>
class Slot< Args >

Type-safe callback slot that wraps a callable with optional ownership tracking.

Slot provides a mechanism for storing and invoking callbacks with a fixed argument signature. It supports direct invocation with typed arguments as well as deferred invocation from a VariantList, enabling type-erased signal/slot communication.

Template Parameters

Args	The argument types that the slot's callable accepts.

Constructor & Destructor Documentation

Slot()

template<typename... Args>

Slot< Args >::Slot ( const Function &  func, void *  owner = nullptr, const char *  prototype = nullptr, int  id = -1  )

inline

Constructs a Slot with the given callable and optional metadata.

Parameters

func	The callable to invoke when the slot is executed.
owner	Optional pointer to the object that owns this slot.
prototype	Optional human-readable prototype string for introspection.
id	Optional numeric identifier for the slot, defaults to -1 (unset).

Member Function Documentation

exec() [1/2]

template<typename... Args>

void Slot< Args >::exec ( Args...  args )

inline

Executes the slot's callable with the given typed arguments.

Parameters

args	The arguments to forward to the callable.

exec() [2/2]

template<typename... Args>

void Slot< Args >::exec ( const VariantList &  variantList )

inline

Executes the slot's callable by unpacking arguments from a VariantList.

Each element in the VariantList is converted back to the corresponding typed argument and forwarded to the underlying callable.

Parameters

variantList

The list of Variant values to unpack as arguments.

pack()

template<typename... Args>

static VariantList Slot< Args >::pack ( Args...  args )

inlinestatic

Packs the given arguments into a VariantList.

Each argument is converted to a Variant after stripping const and reference qualifiers. This is useful for serializing a set of arguments for later deferred invocation via exec(const VariantList &).

Parameters

args	The arguments to pack.

Returns

A VariantList containing each argument as a Variant.

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

• include/promeki/core/slot.h