folly::gen::detail::GroupByAdjacent< Selector > Class Template Reference

#include <Base-inl.h>

Inheritance diagram for folly::gen::detail::GroupByAdjacent< Selector >:

Classes
class	Generator

Public Member Functions
	GroupByAdjacent ()
	GroupByAdjacent (Selector selector)
template<class Source , class Value , class Gen = Generator<Value, Source>>
Gen	compose (GenImpl< Value, Source > &&source) const
template<class Source , class Value , class Gen = Generator<Value, Source>>
Gen	compose (const GenImpl< Value, Source > &source) const
Public Member Functions inherited from folly::gen::Operator< GroupByAdjacent< Selector > >
ResultGen	compose (const GenImpl< Value, Source > &source) const
Public Member Functions inherited from folly::gen::FBounded< Self >
const Self &	self () const
Self &	self ()

Private Attributes
Selector	selector_

Additional Inherited Members
Protected Member Functions inherited from folly::gen::Operator< GroupByAdjacent< Selector > >
	Operator ()=default
	Operator (Operator &&) noexcept=default
	Operator (const Operator &)=default
Operator &	operator= (Operator &&) noexcept=default
Operator &	operator= (const Operator &)=default

Detailed Description

template<class Selector>
class folly::gen::detail::GroupByAdjacent< Selector >

GroupByAdjacent - Group adjacent values by a given key selector, producing a sequence of groups. This differs from GroupBy in that only contiguous sets of values with the same key are considered part of the same group. Unlike GroupBy, this can be used on infinite sequences.

This type is usually used through the 'groupByAdjacent' helper function:

auto tens = seq(0) | groupByAdjacent([](int i){ return (i / 10) % 2; })

This example results in a list like [ 0:[0-9], 1:[10-19], 0:[20-29], ... ]

Definition at line 1221 of file Base-inl.h.

Constructor & Destructor Documentation

template<class Selector >

folly::gen::detail::GroupByAdjacent< Selector >::GroupByAdjacent ( )

inline

Definition at line 1225 of file Base-inl.h.

{}

template<class Selector >

folly::gen::detail::GroupByAdjacent< Selector >::GroupByAdjacent ( Selector  selector )

inlineexplicit

Definition at line 1227 of file Base-inl.h.

References testing::Key(), type, and testing::Value().

      : selector_(std::move(selector)) {}

Member Function Documentation

template<class Selector >

template<class Source , class Value , class Gen = Generator<Value, Source>>

Gen folly::gen::detail::GroupByAdjacent< Selector >::compose ( GenImpl< Value, Source > &&  source ) const

inline

Definition at line 1297 of file Base-inl.h.

References folly::gen::move.

                                                     {
    return Gen(std::move(source.self()), selector_);
  }

template<class Selector >

template<class Source , class Value , class Gen = Generator<Value, Source>>

Gen folly::gen::detail::GroupByAdjacent< Selector >::compose ( const GenImpl< Value, Source > &  source ) const

inline

Definition at line 1302 of file Base-inl.h.

References folly::gen::FBounded< Self >::self().

                                                          {
    return Gen(source.self(), selector_);
  }

Member Data Documentation

template<class Selector >

Selector folly::gen::detail::GroupByAdjacent< Selector >::selector_

private

Definition at line 1222 of file Base-inl.h.

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

• proxygen/folly/folly/gen/Base-inl.h