folly::gen::detail::Composed< First, Second > Class Template Reference

#include <Core-inl.h>

Inheritance diagram for folly::gen::detail::Composed< First, Second >:

Public Member Functions
	Composed ()=default
	Composed (First first, Second second)
template<class Source , class Value , class FirstRet = decltype(std::declval<First>().compose(std::declval<Source>())), class SecondRet = decltype(std::declval<Second>().compose(std::declval<FirstRet>()))>
SecondRet	compose (const GenImpl< Value, Source > &source) const
template<class Source , class Value , class FirstRet = decltype(std::declval<First>().compose(std::declval<Source>())), class SecondRet = decltype(std::declval<Second>().compose(std::declval<FirstRet>()))>
SecondRet	compose (GenImpl< Value, Source > &&source) const
Public Member Functions inherited from folly::gen::Operator< Composed< First, Second > >
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
First	first_
Second	second_

Additional Inherited Members
Protected Member Functions inherited from folly::gen::Operator< Composed< First, Second > >
	Operator ()=default
	Operator (Operator &&) noexcept=default
	Operator (const Operator &)=default
Operator &	operator= (Operator &&) noexcept=default
Operator &	operator= (const Operator &)=default

Detailed Description

template<class First, class Second>
class folly::gen::detail::Composed< First, Second >

Composed - For building up a pipeline of operations to perform, absent any particular source generator. Useful for building up custom pipelines.

This type is usually used by just piping two operators together:

auto valuesOf = filter([](Optional<int>& o) { return o.hasValue(); }) | map([](Optional<int>& o) -> int& { return o.value(); });

auto valuesIncluded = from(optionals) | valuesOf | as<vector>();

Definition at line 309 of file Core-inl.h.

Constructor & Destructor Documentation

template<class First , class Second >

folly::gen::detail::Composed< First, Second >::Composed ( )

default

template<class First , class Second >

folly::gen::detail::Composed< First, Second >::Composed ( First  first, Second  second  )

inline

Definition at line 316 of file Core-inl.h.

References testing::Value().

      : first_(std::move(first)), second_(std::move(second)) {}

Member Function Documentation

template<class First , class Second >

template<class Source , class Value , class FirstRet = decltype(std::declval<First>().compose(std::declval<Source>())), class SecondRet = decltype(std::declval<Second>().compose(std::declval<FirstRet>()))>

SecondRet folly::gen::detail::Composed< First, Second >::compose ( const GenImpl< Value, Source > &  source ) const

inline

Definition at line 326 of file Core-inl.h.

References folly::gen::detail::First::compose(), folly::gen::FBounded< Self >::self(), and testing::Value().

                                                                {
    return second_.compose(first_.compose(source.self()));
  }

template<class First , class Second >

template<class Source , class Value , class FirstRet = decltype(std::declval<First>().compose(std::declval<Source>())), class SecondRet = decltype(std::declval<Second>().compose(std::declval<FirstRet>()))>

SecondRet folly::gen::detail::Composed< First, Second >::compose ( GenImpl< Value, Source > &&  source ) const

inline

Definition at line 337 of file Core-inl.h.

References folly::gen::detail::First::compose(), and folly::gen::move.

                                                           {
    return second_.compose(first_.compose(std::move(source.self())));
  }

Member Data Documentation

template<class First , class Second >

First folly::gen::detail::Composed< First, Second >::first_

private

Definition at line 310 of file Core-inl.h.

template<class First , class Second >

Second folly::gen::detail::Composed< First, Second >::second_

private

Definition at line 311 of file Core-inl.h.

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

• proxygen/folly/folly/gen/Core-inl.h