pin-project 0.4.21

A crate for safe and ergonomic pin-projection.
Documentation
# Examples and generated code of each feature of pin-project

### Basic usage of `#[pin_project]` on structs

  * [example]struct-default.rs
  * [generated code]struct-default-expanded.rs

### Basic usage of `#[pin_project]` on enums

  * [example]enum-default.rs
  * [generated code]enum-default-expanded.rs

### Manual implementation of `Unpin` by `UnsafeUnpin`

  * [example]unsafe_unpin.rs
  * [generated code]unsafe_unpin-expanded.rs
  * [`UnsafeUnpin` documentation]https://docs.rs/pin-project/0.4/pin_project/trait.UnsafeUnpin.html

### Manual implementation of `Drop` by `#[pinned_drop]`

  * [example]pinned_drop.rs
  * [generated code]pinned_drop-expanded.rs
  * [`#[pinned_drop]` documentation]https://docs.rs/pin-project/0.4/pin_project/attr.pinned_drop.html

### `project_replace()` method

  * [example]project_replace.rs
  * [generated code]project_replace-expanded.rs
  * [`project_replace()` documentation]https://docs.rs/pin-project/0.4/pin_project/attr.pin_project.html#project_replace

### Ensure `!Unpin` by `#[pin_project(!Unpin)]`

  * [example]not_unpin.rs
  * [generated code]not_unpin-expanded.rs
  * [`!Unpin` documentation]https://docs.rs/pin-project/0.4/pin_project/attr.pin_project.html#unpin