GNodeIterator< NODE > Class Template Reference

#include <nodesystem.h>

Inheritance diagram for GNodeIterator< NODE >:

Detailed Description

template<typename NODE>
class maxon::nodes::GNodeIterator< NODE >

A GNodeIterator iterates over all children of a g-node. It is returned by NodeFunctions::GetChildren and PortListFunctions::GetPorts. Because both creation and iterator advance can return errors, the iteration doesn't provide the node of the current iteration directly, but wrapped in a Result. Therefore you have to write the loop as follows:

for (auto p : portlist.GetPorts())
{
  const Port& port = p iferr_return;
  ...
}

Template Parameters

NODE	The node class over which the iterator loops (e.g. Node or MutablePort).

Public Member Functions
	GNodeIterator ()=default
Result< void >	operator++ ()
const NODE &	operator* () const
const NODE *	operator-> () const
Public Member Functions inherited from GNodeIteratorBase
Result< void >	Init (const NodeSystemInterface *nodeSystem, const GNodeHandle &node)
Result< void >	Init (const NodeSystemInterface *nodeSystem, Result< GNodeHandle > &&node)
Result< void >	Init (const NodeSystemInterface *nodeSystem, Result< const GNodeHandle & > &&node)
Result< void >	MoveToNext ()
Bool	HasEntry () const
	operator Bool () const
const GNodeHandle &	GetHandle () const
const MutableGNode &	GetNode () const

Private Types
template<typename SUPER >
using	ResultFunctions = ResultIteratorFunctions< SUPER >

Private Member Functions
Result< void >	Init (const NodeSystemInterface *nodeSystem, const GNodeHandle &node)
Result< void >	Filter ()

Additional Inherited Members
Protected Attributes inherited from GNodeIteratorBase
const NodeSystemInterface *	_nodeSystem
NodePath	_nodePath
const GNodeData *	_nodeData
const GNodeData *	_baseData
Int	_childIndex
MutableGNode	_child

Member Typedef Documentation

ResultFunctions

using ResultFunctions = ResultIteratorFunctions<SUPER>

private

Constructor & Destructor Documentation

GNodeIterator()

GNodeIterator ( )

default

Constructs a @CLASS object with default values.

Member Function Documentation

operator++()

Result<void> operator++

(

)

Advances this iterator to the next child node.

Returns

OK on success, or an error. Advancing to the position one behind the last child is no error.

operator*()

const NODE& operator*

(

)

const

Returns the current child node. This function must not be called when this iterator doesn't point to a valid child node.

Returns

The current child node.

operator->()

const NODE* operator->

(

void

)

const

Returns the current child node. This function must not be called when this iterator doesn't point to a valid child node.

Returns

The current child node.

Init()

Result<void> Init ( const NodeSystemInterface *  nodeSystem, const GNodeHandle &  node  )

private

Filter()

Result<void> Filter ( )

private