folly::gen::detail::Append< Collection > Class Template Reference

#include <Base-inl.h>

Inheritance diagram for folly::gen::detail::Append< Collection >:

Public Member Functions
	Append (Collection *collection)
template<class Value , class Source >
Collection &	compose (const GenImpl< Value, Source > &source) const
Public Member Functions inherited from folly::gen::Operator< Append< Collection > >
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
Collection *	collection_

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

Detailed Description

template<class Collection>
class folly::gen::detail::Append< Collection >

Append - For collecting values from a source into a given output container by appending.

This type is usually used through the helper function 'appendTo', like:

vector<int64_t> ids; from(results) | map([](Person& p) { return p.id }) | appendTo(ids);

Definition at line 2267 of file Base-inl.h.

Constructor & Destructor Documentation

template<class Collection >

folly::gen::detail::Append< Collection >::Append ( Collection *  collection )

inlineexplicit

Definition at line 2271 of file Base-inl.h.

: collection_(collection) {}

Member Function Documentation

template<class Collection >

template<class Value , class Source >

Collection& folly::gen::detail::Append< Collection >::compose ( const GenImpl< Value, Source > &  source ) const

inline

Definition at line 2274 of file Base-inl.h.

References v, and testing::Value().

                                                                  {
    static_assert(!Source::infinite, "Cannot appendTo with infinite source");
    source | [&](Value v) {
      collection_->insert(collection_->end(), std::forward<Value>(v));
    };
    return *collection_;
  }

Member Data Documentation

template<class Collection >

Collection* folly::gen::detail::Append< Collection >::collection_

private

Definition at line 2268 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