# Trait std::ops::InPlace [−] [src]

    pub trait InPlace<Data>: Place<Data> where Data: ?Sized {
        type Owner;
        unsafe fn finalize(self) -> Self::Owner;
    }

Unstable (`placement_new_protocol` #27779)

Specialization of `Place` trait supporting `in (PLACE) EXPR`.

## Associated Types

### `type Owner`

Unstable (`placement_new_protocol` #27779)

`Owner` is the type of the end value of `in (PLACE) EXPR`

Note that when `in (PLACE) EXPR` is solely used for side-effecting an existing data-structure, e.g. `Vec::emplace_back`, then `Owner` need not carry any information at all (e.g. it can be the unit type `()` in that case).

## Required Methods

### `unsafe fn finalize(self) -> Self::Owner`

Unstable (`placement_new_protocol` #27779)

Converts self into the final value, shifting deallocation/cleanup responsibilities (if any remain), over to the returned instance of `Owner` and forgetting self.

## Implementors

- `impl<T> InPlace<T> for IntermediateBox<T>`
- `impl<'a, T> InPlace<T> for FrontPlace<'a, T>`
- `impl<'a, T> InPlace<T> for BackPlace<'a, T>`

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