Transformer< SRC, RES > Class Template Reference

#include "lib/iter-explorer.hpp"

Description

template<class SRC, class RES>
class lib::iter_explorer::Transformer< SRC, RES >

Decorator for IterExplorer to map a transformation function on all results. The transformation function is invoked on demand, and only once per item to be treated, storing the treated result into an universal value holder buffer. The given functor is adapted in a similar way as the "expand functor", so to detect and convert the expected input on invocation.

Definition at line 778 of file iter-explorer.hpp.

Public Types
using	pointer = typename meta::ValueTypeBinding< RES >::pointer
using	reference = typename meta::ValueTypeBinding< RES >::reference
using	value_type = typename meta::ValueTypeBinding< RES >::value_type

Public Member Functions
template<typename FUN >
	Transformer (SRC &&dataSrc, FUN &&transformFunctor)
bool	checkPoint () const
void	expandChildren ()
	refresh state when other layers manipulate the source sequence More...
void	iterNext ()
reference	yield () const

Private Types
using	TransformedItem = wrapper::ItemWrapper< RES >
using	TransformFunctor = function< RES(SRC &)>

Private Member Functions
reference	invokeTransformation ()
SRC &	srcIter () const

Private Attributes
TransformFunctor	trafo_
TransformedItem	treated_

Member Function Documentation

expandChildren()

void expandChildren ( )

inline

refresh state when other layers manipulate the source sequence

Remarks

expansion replaces the current element by a sequence of "child" elements. Since we cache our transformation, we need to ensure possibly new source elements get processed

Definition at line 811 of file iter-explorer.hpp.

Inheritance diagram for Transformer< SRC, RES >:

Collaboration diagram for Transformer< SRC, RES >:

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

• iter-explorer.hpp