folly::bind

Name

Description

ext

Implements standard storage semantics for folly::bind. This is used (with some additional constraints & tweaks) by async_closure captures. It can also be used for other single‐use data structurs ‐‐ this makes it easy to simultaneously define the types for, and construct, tuples, named tuples, structs, etc. Some examples of this are given in Bind.md.

Name

Description

args

The primitive for representing lists of bound args.

capture

bind::capture() and bind::capture_indirect() work much like other folly::bind modifiers. However, since they're primarily intended for async_closure arguments, you will practically only use them: ‐ alone, for non‐`co_cleanup` arguments; ‐ with bind::in_place() or bind::in_place_with(), for co_cleanup arguments; ‐ with constant(), for either.

capture_const_ref

Sugar for capture{const_ref{...}}, capturing a const reference.

capture_indirect

Binds an async‐closure capture whose pointer‐like value is dereferenced once to expose the underlying object.

capture_mut_ref

Sugar for capture{mut_ref{...}}, capturing a mutable reference.

const_ref

Binding modifier that binds a const reference to each argument.

constant

Binding modifier that makes each argument const.

copy

Binding modifier that passes its arguments as decay‐copied prvalues.

id_type

The "identifier tag ‐> storage type" signature for a named binding.

move

Binding modifier that passes its arguments as rvalue references.

mut

Binding modifier that keeps each argument mutable.

mut_ref

Binding modifier that binds a mutable reference to each argument.

self_id_type

The self‐reference "identifier tag ‐> storage type" binding signature.

Name

Description

capture_in_place

Bind an in‐place‐constructed capture of type T.

capture_in_place_with

Bind an in‐place‐constructed capture built by a factory function.

in_place

Binds in‐place construction of T from the given arguments.

in_place_with

Binds in‐place construction via a maker callable plus the given arguments.

operator""_id

User‐defined literal building a bind::id<Str> from "x"_id.

Name

Description

id

The identifier for the compile‐time string Str; also spelled "x"_id.

self_id

A special identifier tag that works just like "x"_id.