# Objective

Documents the `BufferVec` render resource.

`BufferVec` is a fairly low level object, that will likely be managed by a higher level API (e.g. through [`encase`](bevyengine#4272)) in the future. For now, since it is still used by some simple 
example crates (e.g. [bevy-vertex-pulling](https://github.com/superdump/bevy-vertex-pulling)), it will be helpful
to provide some simple documentation on what `BufferVec` does.  

## Solution

I looked through Discord discussion on `BufferVec`, and found [a comment](https://discord.com/channels/691052431525675048/953222550568173580/956596218857918464 ) by @superdump to be particularly helpful, in the general discussion around `encase`. 

I have taken care to clarify where the data is stored (host-side), when the device-side buffer is created (through calls to `reserve`), and when data writes from host to device are scheduled (using `write_buffer` calls). 

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## Changelog

- Added doc string for `BufferVec` and two of its methods: `reserve` and `write_buffer`. 


Co-authored-by: Brian Merchant <bhmerchant@gmail.com>

The `crate` intermediate directory is missing from the path, which currently leads to 404.

…Without) (bevyengine#5124)

# Objective

- Fixes bevyengine#3142

## Solution

- Done according to bevyengine#3142
- Created new marker trait `ArchetypeFilter`
- Implement said trait to:
  - `With<T>`
  - `Without<T>`
  - tuples containing only types that implement `ArchetypeFilter`, from 0 to 15 elements
  - `Or<T>` where T is a tuple as described previously
- Changed `ExactSizeIterator` impl to include a new generic that must implement `WorldQuery` and `ArchetypeFilter`
- Added new tests

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## Changelog

### Added
- `Query`s with archetypal filters can now use `.iter().len()` to get the exact size of the iterator.

# Objective
As a part of evaluating bevyengine#4800, at the behest of @cart, it was noted that the ECS microbenchmarks all focus on singular component queries, whereas in reality most systems will have wider queries with multiple components in each.

## Solution
Use const generics to add wider variants of existing benchmarks.

There are some outdated error messages for when a resource is not found. It references `add_resource` and `add_non_send_resource` which were renamed to `insert_resource` and `insert_non_send_resource`.

# Objective

This fixes bevyengine#5127

## Solution

- Moved texture sample out of branch in `prepare_normal()`.


Co-authored-by: DGriffin91 <github@dgdigital.net>

# Objective

Fix some typos in bevy_reflect's readme

## Solution

- Change `Foo`'s `d` field to be of type `Vec<Baz>`
- Format `&dyn Reflect` to be monospace