# Objective
- for smallvec some crates specify default features false, other dont.
turns out we dont need them
## Solution
- remove
## Testing
- 3d_scene
Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)
</details>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
# Objective
Upgrade to `wgpu` version `25.0`.
Depends on https://github.com/bevyengine/naga_oil/pull/121
## Solution
### Problem
The biggest issue we face upgrading is the following requirement:
> To facilitate this change, there was an additional validation rule put
in place: if there is a binding array in a bind group, you may not use
dynamic offset buffers or uniform buffers in that bind group. This
requirement comes from vulkan rules on UpdateAfterBind descriptors.
This is a major difficulty for us, as there are a number of binding
arrays that are used in the view bind group. Note, this requirement does
not affect merely uniform buffors that use dynamic offset but the use of
*any* uniform in a bind group that also has a binding array.
### Attempted fixes
The easiest fix would be to change uniforms to be storage buffers
whenever binding arrays are in use:
```wgsl
#ifdef BINDING_ARRAYS_ARE_USED
@group(0) @binding(0) var<uniform> view: View;
@group(0) @binding(1) var<uniform> lights: types::Lights;
#else
@group(0) @binding(0) var<storage> view: array<View>;
@group(0) @binding(1) var<storage> lights: array<types::Lights>;
#endif
```
This requires passing the view index to the shader so that we know where
to index into the buffer:
```wgsl
struct PushConstants {
view_index: u32,
}
var<push_constant> push_constants: PushConstants;
```
Using push constants is no problem because binding arrays are only
usable on native anyway.
However, this greatly complicates the ability to access `view` in
shaders. For example:
```wgsl
#ifdef BINDING_ARRAYS_ARE_USED
mesh_view_bindings::view.view_from_world[0].z
#else
mesh_view_bindings::view[mesh_view_bindings::view_index].view_from_world[0].z
#endif
```
Using this approach would work but would have the effect of polluting
our shaders with ifdef spam basically *everywhere*.
Why not use a function? Unfortunately, the following is not valid wgsl
as it returns a binding directly from a function in the uniform path.
```wgsl
fn get_view() -> View {
#if BINDING_ARRAYS_ARE_USED
let view_index = push_constants.view_index;
let view = views[view_index];
#endif
return view;
}
```
This also poses problems for things like lights where we want to return
a ptr to the light data. Returning ptrs from wgsl functions isn't
allowed even if both bindings were buffers.
The next attempt was to simply use indexed buffers everywhere, in both
the binding array and non binding array path. This would be viable if
push constants were available everywhere to pass the view index, but
unfortunately they are not available on webgpu. This means either
passing the view index in a storage buffer (not ideal for such a small
amount of state) or using push constants sometimes and uniform buffers
only on webgpu. However, this kind of conditional layout infects
absolutely everything.
Even if we were to accept just using storage buffer for the view index,
there's also the additional problem that some dynamic offsets aren't
actually per-view but per-use of a setting on a camera, which would
require passing that uniform data on *every* camera regardless of
whether that rendering feature is being used, which is also gross.
As such, although it's gross, the simplest solution just to bump binding
arrays into `@group(1)` and all other bindings up one bind group. This
should still bring us under the device limit of 4 for most users.
### Next steps / looking towards the future
I'd like to avoid needing split our view bind group into multiple parts.
In the future, if `wgpu` were to add `@builtin(draw_index)`, we could
build a list of draw state in gpu processing and avoid the need for any
kind of state change at all (see
https://github.com/gfx-rs/wgpu/issues/6823). This would also provide
significantly more flexibility to handle things like offsets into other
arrays that may not be per-view.
### Testing
Tested a number of examples, there are probably more that are still
broken.
---------
Co-authored-by: François Mockers <mockersf@gmail.com>
Co-authored-by: Elabajaba <Elabajaba@users.noreply.github.com>
Updates the requirements on
[derive_more](https://github.com/JelteF/derive_more) to permit the
latest version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/JelteF/derive_more/releases">derive_more's
releases</a>.</em></p>
<blockquote>
<h2>2.0.1</h2>
<p><a href="https://docs.rs/derive_more/2.0.1">API docs</a>
<a
href="https://github.com/JelteF/derive_more/blob/v2.0.1/CHANGELOG.md#201---2025-02-03">Changelog</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/JelteF/derive_more/blob/master/CHANGELOG.md">derive_more's
changelog</a>.</em></p>
<blockquote>
<h2>2.0.1 - 2025-02-03</h2>
<h3>Added</h3>
<ul>
<li>Add crate metadata for the Rust Playground. This makes sure that the
Rust
Playground will have all <code>derive_more</code> features available
once
<a
href="https://docs.rs/selectors/latest/selectors"><code>selectors</code></a>
crate updates its
<code>derive_more</code> version.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/445">#445</a>)</li>
</ul>
<h2>2.0.0 - 2025-02-03</h2>
<h3>Breaking changes</h3>
<ul>
<li><code>use derive_more::SomeTrait</code> now imports macro only.
Importing macro with
its trait along is possible now via <code>use
derive_more::with_trait::SomeTrait</code>.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/406">#406</a>)</li>
<li>Top-level <code>#[display("...")]</code> attribute on an
enum now has defaulting behavior
instead of replacing when no wrapping is possible (no
<code>_variant</code> placeholder).
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/395">#395</a>)</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Associated types of type parameters not being treated as generics in
<code>Debug</code>
and <code>Display</code> expansions.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/399">#399</a>)</li>
<li><code>unreachable_code</code> warnings on generated code when
<code>!</code> (never type) is used.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/404">#404</a>)</li>
<li>Ambiguous associated item error when deriving <code>TryFrom</code>,
<code>TryInto</code> or <code>FromStr</code>
with an associated item called <code>Error</code> or <code>Err</code>
respectively.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/410">#410</a>)</li>
<li>Top-level <code>#[display("...")]</code> attribute on an
enum being incorrectly treated
as transparent or wrapping.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/395">#395</a>)</li>
<li>Omitted raw identifiers in <code>Debug</code> and
<code>Display</code> expansions.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/431">#431</a>)</li>
<li>Incorrect rendering of raw identifiers as field names in
<code>Debug</code> expansions.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/431">#431</a>)</li>
<li>Top-level <code>#[display("...")]</code> attribute on an
enum not working transparently
for directly specified fields.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/438">#438</a>)</li>
<li>Incorrect dereferencing of unsized fields in <code>Debug</code> and
<code>Display</code> expansions.
(<a
href="https://redirect.github.com/JelteF/derive_more/pull/440">#440</a>)</li>
</ul>
<h2>0.99.19 - 2025-02-03</h2>
<ul>
<li>Add crate metadata for the Rust Playground.</li>
</ul>
<h2>1.0.0 - 2024-08-07</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="a78d8ee41d"><code>a78d8ee</code></a>
chore: Release</li>
<li><a
href="2aeee4d1c0"><code>2aeee4d</code></a>
Update changelog (<a
href="https://redirect.github.com/JelteF/derive_more/issues/446">#446</a>)</li>
<li><a
href="5afbaa1d8e"><code>5afbaa1</code></a>
Add Rust Playground metadata (<a
href="https://redirect.github.com/JelteF/derive_more/issues/445">#445</a>)</li>
<li><a
href="d6c3315f12"><code>d6c3315</code></a>
Prepare 2.0.0 release (<a
href="https://redirect.github.com/JelteF/derive_more/issues/444">#444</a>)</li>
<li><a
href="c5e5e82c0a"><code>c5e5e82</code></a>
Fix unsized fields usage in <code>Display</code>/<code>Debug</code>
derives (<a
href="https://redirect.github.com/JelteF/derive_more/issues/440">#440</a>,
<a
href="https://redirect.github.com/JelteF/derive_more/issues/432">#432</a>)</li>
<li><a
href="d391493a3c"><code>d391493</code></a>
Fix field transparency for top-level shared attribute in
<code>Display</code> (<a
href="https://redirect.github.com/JelteF/derive_more/issues/438">#438</a>)</li>
<li><a
href="f14c7a759a"><code>f14c7a7</code></a>
Fix raw identifiers usage in <code>Display</code>/<code>Debug</code>
derives (<a
href="https://redirect.github.com/JelteF/derive_more/issues/434">#434</a>,
<a
href="https://redirect.github.com/JelteF/derive_more/issues/431">#431</a>)</li>
<li><a
href="7b23de3d53"><code>7b23de3</code></a>
Update <code>convert_case</code> crate from 0.6 to 0.7 version (<a
href="https://redirect.github.com/JelteF/derive_more/issues/436">#436</a>)</li>
<li><a
href="cc9957e9cd"><code>cc9957e</code></a>
Fix <code>compile_fail</code> tests and make Clippy happy for 1.84 Rust
(<a
href="https://redirect.github.com/JelteF/derive_more/issues/435">#435</a>)</li>
<li><a
href="17d61c3118"><code>17d61c3</code></a>
Fix transparency and behavior of shared formatting on enums (<a
href="https://redirect.github.com/JelteF/derive_more/issues/395">#395</a>,
<a
href="https://redirect.github.com/JelteF/derive_more/issues/377">#377</a>,
<a
href="https://redirect.github.com/JelteF/derive_more/issues/411">#411</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/JelteF/derive_more/compare/v1.0.0...v2.0.1">compare
view</a></li>
</ul>
</details>
<br />
Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)
</details>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Bump version after release
This PR has been auto-generated
Fixes#19766
---------
Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François Mockers <francois.mockers@vleue.com>
Co-authored-by: François Mockers <mockersf@gmail.com>
# Objective
- Update ron to the latest version.
- This is blocking changes to AnimationGraph (as some valid structs are
not capable of being deserialized).
## Solution
- Bump ron!
## Testing
- The particular issue I was blocked by seems to be resolved!
# Objective
cargo update was required to build because into_values was added in a
patch version
## Solution
Depend on the new patch
## Testing
Builds locally now
# Objective
Now that `bevy_platform::cfg` is merged, we can start tidying up
features. This PR starts with `bevy_utils`.
## Solution
- Removed `serde` and `critical-section` features (they were just
re-exports of `bevy_platform` anyway)
- Removed `std`, `alloc` features, relying on `bevy_platform::cfg` to
check for availability.
- Added `parallel` feature to provide access to the `Parallel` type.
- Moved the `HashMap` type aliases into `map.rs` for better
organisation.
## Testing
- CI
# Objective
Fixes#18943
## Solution
Reintroduces support for `hashbrown`'s `HashMap` and `HashSet` types.
These were inadvertently removed when `bevy_platform` newtyped the
`hashbrown` types.
Since we removed our `hashbrown` dependency, I gated these impls behind
a `hashbrown` feature. Not entirely sure if this is necessary since we
enabled it for `bevy_reflect` through `bevy_platform` anyways. (Complex
features still confuse me a bit so let me know if I can just remove it!)
I also went ahead and preemptively implemented `TypePath` for `PassHash`
while I was here.
## Testing
You can test that it works by adding the following to a Bevy example
based on this PR (you'll also need to include `hashbrown` of course):
```rust
#[derive(Reflect)]
struct Foo(hashbrown::HashMap<String, String>);
```
Then check it compiles with:
```
cargo check --example hello_world --no-default-features --features=bevy_reflect/hashbrown
```
# Objective
The goal of `bevy_platform_support` is to provide a set of platform
agnostic APIs, alongside platform-specific functionality. This is a high
traffic crate (providing things like HashMap and Instant). Especially in
light of https://github.com/bevyengine/bevy/discussions/18799, it
deserves a friendlier / shorter name.
Given that it hasn't had a full release yet, getting this change in
before Bevy 0.16 makes sense.
## Solution
- Rename `bevy_platform_support` to `bevy_platform`.
# Objective
- Fixes#18397
- Supersedes #18474
- Simplifies 0.16 migration
## Solution
- Upgrade to Glam 0.29.3, which has backported the `nostd-libm` feature.
- Expose a similar feature in `bevy_math` and enable it in
`bevy_internal`, allowing `bevy_math`, `bevy_input`, and
`bevy_transform` to be unconditional dependencies again.
## Testing
- CI
---
## Notes
- This includes `libm` as a dependency, but this was already the case in
the common scenario where `rand` or many other features were enabled.
Considering `libm` is an official Rust crate, it's a very low-risk
dependency to unconditionally include.
- For users who do not want `libm` included, simply import Bevy's
subcrates directly, since `bevy_math/nostd-libm` will not be enabled.
- I know we are _very_ late in the RC cycle for 0.16, but this has a
substantial impact on the usability of `bevy` that I consider worth
including.
# Objective
- Avoid breaking builds for projects that have glam `0.29.0` in their
`Cargo.lock` files.
## Solution
Reflection support for additional `glam` types were added in #17493,
which were only introduced to `glam` in [`0.29.1`][glam-changelog]. If
you have a `Cargo.lock` file that refers to `0.29.0`, then `bevy_derive`
will fail to compile.
The workaround is easy enough once you figure out what's going on, but
specifying the required minimum will avoid the paper cut for others.
`0.29.2` is used here as the required version to include the fix for a
regression that was introduced `0.29.1`.
[glam-changelog]:
<https://github.com/bitshifter/glam-rs/blob/main/CHANGELOG.md#0291---2024-10-30>
# Objective
- Contributes to #15460
- Supersedes #8520
- Fixes#4906
## Solution
- Added a new `web` feature to `bevy`, and several of its crates.
- Enabled new `web` feature automatically within crates without `no_std`
support.
## Testing
- `cargo build --no-default-features --target wasm32v1-none`
---
## Migration Guide
When using Bevy crates which _don't_ automatically enable the `web`
feature, please enable it when building for the browser.
## Notes
- I added [`cfg_if`](https://crates.io/crates/cfg-if) to help manage
some of the feature gate gore that this extra feature introduces. It's
still pretty ugly, but I think much easier to read.
- Certain `wasm` targets (e.g.,
[wasm32-wasip1](https://doc.rust-lang.org/nightly/rustc/platform-support/wasm32-wasip1.html#wasm32-wasip1))
provide an incomplete implementation for `std`. I have not tested these
platforms, but I suspect Bevy's liberal use of usually unsupported
features (e.g., threading) will cause these targets to fail. As such,
consider `wasm32-unknown-unknown` as the only `wasm` platform with
support from Bevy for `std`. All others likely will need to be treated
as `no_std` platforms.
# Objective
- Fixes#15460 (will open new issues for further `no_std` efforts)
- Supersedes #17715
## Solution
- Threaded in new features as required
- Made certain crates optional but default enabled
- Removed `compile-check-no-std` from internal `ci` tool since GitHub CI
can now simply check `bevy` itself now
- Added CI task to check `bevy` on `thumbv6m-none-eabi` to ensure
`portable-atomic` support is still valid [^1]
[^1]: This may be controversial, since it could be interpreted as
implying Bevy will maintain support for `thumbv6m-none-eabi` going
forward. In reality, just like `x86_64-unknown-none`, this is a
[canary](https://en.wiktionary.org/wiki/canary_in_a_coal_mine) target to
make it clear when `portable-atomic` no longer works as intended (fixing
atomic support on atomically challenged platforms). If a PR comes
through and makes supporting this class of platforms impossible, then
this CI task can be removed. I however wager this won't be a problem.
## Testing
- CI
---
## Release Notes
Bevy now has support for `no_std` directly from the `bevy` crate.
Users can disable default features and enable a new `default_no_std`
feature instead, allowing `bevy` to be used in `no_std` applications and
libraries.
```toml
# Bevy for `no_std` platforms
bevy = { version = "0.16", default-features = false, features = ["default_no_std"] }
```
`default_no_std` enables certain required features, such as `libm` and
`critical-section`, and as many optional crates as possible (currently
just `bevy_state`). For atomically-challenged platforms such as the
Raspberry Pi Pico, `portable-atomic` will be used automatically.
For library authors, we recommend depending on `bevy` with
`default-features = false` to allow `std` and `no_std` users to both
depend on your crate. Here are some recommended features a library crate
may want to expose:
```toml
[features]
# Most users will be on a platform which has `std` and can use the more-powerful `async_executor`.
default = ["std", "async_executor"]
# Features for typical platforms.
std = ["bevy/std"]
async_executor = ["bevy/async_executor"]
# Features for `no_std` platforms.
libm = ["bevy/libm"]
critical-section = ["bevy/critical-section"]
[dependencies]
# We disable default features to ensure we don't accidentally enable `std` on `no_std` targets, for example.
bevy = { version = "0.16", default-features = false }
```
While this is verbose, it gives the maximum control to end-users to
decide how they wish to use Bevy on their platform.
We encourage library authors to experiment with `no_std` support. For
libraries relying exclusively on `bevy` and no other dependencies, it
may be as simple as adding `#![no_std]` to your `lib.rs` and exposing
features as above! Bevy can also provide many `std` types, such as
`HashMap`, `Mutex`, and `Instant` on all platforms. See
`bevy::platform_support` for details on what's available out of the box!
## Migration Guide
- If you were previously relying on `bevy` with default features
disabled, you may need to enable the `std` and `async_executor`
features.
- `bevy_reflect` has had its `bevy` feature removed. If you were relying
on this feature, simply enable `smallvec` and `smol_str` instead.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
- Contributes to #15460
- Reduce quantity and complexity of feature gates across Bevy
## Solution
- Used `target_has_atomic` configuration variable to automatically
detect impartial atomic support and automatically switch to
`portable-atomic` over the standard library on an as-required basis.
## Testing
- CI
## Notes
To explain the technique employed here, consider getting `Arc` either
from `alloc::sync` _or_ `portable-atomic-util`. First, we can inspect
the `alloc` crate to see that you only have access to `Arc` _if_
`target_has_atomic = "ptr"`. We add a target dependency for this
particular configuration _inverted_:
```toml
[target.'cfg(not(target_has_atomic = "ptr"))'.dependencies]
portable-atomic-util = { version = "0.2.4", default-features = false }
```
This ensures we only have the dependency when it is needed, and it is
entirely excluded from the dependency graph when it is not. Next, we
adjust our configuration flags to instead of checking for `feature =
"portable-atomic"` to instead check for `target_has_atomic = "ptr"`:
```rust
// `alloc` feature flag hidden for brevity
#[cfg(not(target_has_atomic = "ptr"))]
use portable_atomic_util as arc;
#[cfg(target_has_atomic = "ptr")]
use alloc::sync as arc;
pub use arc::{Arc, Weak};
```
The benefits of this technique are three-fold:
1. For platforms without full atomic support, the functionality is
enabled automatically.
2. For platforms with atomic support, the dependency is never included,
even if a feature was enabled using `--all-features` (for example)
3. The `portable-atomic` feature no longer needs to virally spread to
all user-facing crates, it's instead something handled within
`bevy_platform_support` (with some extras where other dependencies also
need their features enabled).
# Objective
- Fixes#17960
## Solution
- Followed the [edition upgrade
guide](https://doc.rust-lang.org/edition-guide/editions/transitioning-an-existing-project-to-a-new-edition.html)
## Testing
- CI
---
## Summary of Changes
### Documentation Indentation
When using lists in documentation, proper indentation is now linted for.
This means subsequent lines within the same list item must start at the
same indentation level as the item.
```rust
/* Valid */
/// - Item 1
/// Run-on sentence.
/// - Item 2
struct Foo;
/* Invalid */
/// - Item 1
/// Run-on sentence.
/// - Item 2
struct Foo;
```
### Implicit `!` to `()` Conversion
`!` (the never return type, returned by `panic!`, etc.) no longer
implicitly converts to `()`. This is particularly painful for systems
with `todo!` or `panic!` statements, as they will no longer be functions
returning `()` (or `Result<()>`), making them invalid systems for
functions like `add_systems`. The ideal fix would be to accept functions
returning `!` (or rather, _not_ returning), but this is blocked on the
[stabilisation of the `!` type
itself](https://doc.rust-lang.org/std/primitive.never.html), which is
not done.
The "simple" fix would be to add an explicit `-> ()` to system
signatures (e.g., `|| { todo!() }` becomes `|| -> () { todo!() }`).
However, this is _also_ banned, as there is an existing lint which (IMO,
incorrectly) marks this as an unnecessary annotation.
So, the "fix" (read: workaround) is to put these kinds of `|| -> ! { ...
}` closuers into variables and give the variable an explicit type (e.g.,
`fn()`).
```rust
// Valid
let system: fn() = || todo!("Not implemented yet!");
app.add_systems(..., system);
// Invalid
app.add_systems(..., || todo!("Not implemented yet!"));
```
### Temporary Variable Lifetimes
The order in which temporary variables are dropped has changed. The
simple fix here is _usually_ to just assign temporaries to a named
variable before use.
### `gen` is a keyword
We can no longer use the name `gen` as it is reserved for a future
generator syntax. This involved replacing uses of the name `gen` with
`r#gen` (the raw-identifier syntax).
### Formatting has changed
Use statements have had the order of imports changed, causing a
substantial +/-3,000 diff when applied. For now, I have opted-out of
this change by amending `rustfmt.toml`
```toml
style_edition = "2021"
```
This preserves the original formatting for now, reducing the size of
this PR. It would be a simple followup to update this to 2024 and run
`cargo fmt`.
### New `use<>` Opt-Out Syntax
Lifetimes are now implicitly included in RPIT types. There was a handful
of instances where it needed to be added to satisfy the borrow checker,
but there may be more cases where it _should_ be added to avoid
breakages in user code.
### `MyUnitStruct { .. }` is an invalid pattern
Previously, you could match against unit structs (and unit enum
variants) with a `{ .. }` destructuring. This is no longer valid.
### Pretty much every use of `ref` and `mut` are gone
Pattern binding has changed to the point where these terms are largely
unused now. They still serve a purpose, but it is far more niche now.
### `iter::repeat(...).take(...)` is bad
New lint recommends using the more explicit `iter::repeat_n(..., ...)`
instead.
## Migration Guide
The lifetimes of functions using return-position impl-trait (RPIT) are
likely _more_ conservative than they had been previously. If you
encounter lifetime issues with such a function, please create an issue
to investigate the addition of `+ use<...>`.
## Notes
- Check the individual commits for a clearer breakdown for what
_actually_ changed.
---------
Co-authored-by: François Mockers <francois.mockers@vleue.com>
Didn't remove WgpuWrapper. Not sure if it's needed or not still.
## Testing
- Did you test these changes? If so, how? Example runner
- Are there any parts that need more testing? Web (portable atomics
thingy?), DXC.
## Migration Guide
- Bevy has upgraded to [wgpu
v24](https://github.com/gfx-rs/wgpu/blob/trunk/CHANGELOG.md#v2400-2025-01-15).
- When using the DirectX 12 rendering backend, the new priority system
for choosing a shader compiler is as follows:
- If the `WGPU_DX12_COMPILER` environment variable is set at runtime, it
is used
- Else if the new `statically-linked-dxc` feature is enabled, a custom
version of DXC will be statically linked into your app at compile time.
- Else Bevy will look in the app's working directory for
`dxcompiler.dll` and `dxil.dll` at runtime.
- Else if they are missing, Bevy will fall back to FXC (not recommended)
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: IceSentry <c.giguere42@gmail.com>
Co-authored-by: François Mockers <francois.mockers@vleue.com>
# Objective
- Fixes CI failure due to `uuid` 1.13 using the new version of
`getrandom` which requires using a new API to work on Wasm.
## Solution
- Based on [`uuid` 1.13 release
notes](https://github.com/uuid-rs/uuid/releases/tag/1.13.0) I've enabled
the `js` feature on `wasm32`. This will need to be revisited once #17499
is up for review
- Updated minimum `uuid` version to 1.13.1, which fixes a separate issue
with `target_feature = atomics` on `wasm`.
## Testing
- `cargo check --target wasm32-unknown-unknown`
# Objective
- Contributes to #16877
## Solution
- Moved `hashbrown`, `foldhash`, and related types out of `bevy_utils`
and into `bevy_platform_support`
- Refactored the above to match the layout of these types in `std`.
- Updated crates as required.
## Testing
- CI
---
## Migration Guide
- The following items were moved out of `bevy_utils` and into
`bevy_platform_support::hash`:
- `FixedState`
- `DefaultHasher`
- `RandomState`
- `FixedHasher`
- `Hashed`
- `PassHash`
- `PassHasher`
- `NoOpHash`
- The following items were moved out of `bevy_utils` and into
`bevy_platform_support::collections`:
- `HashMap`
- `HashSet`
- `bevy_utils::hashbrown` has been removed. Instead, import from
`bevy_platform_support::collections` _or_ take a dependency on
`hashbrown` directly.
- `bevy_utils::Entry` has been removed. Instead, import from
`bevy_platform_support::collections::hash_map` or
`bevy_platform_support::collections::hash_set` as appropriate.
- All of the above equally apply to `bevy::utils` and
`bevy::platform_support`.
## Notes
- I left `PreHashMap`, `PreHashMapExt`, and `TypeIdMap` in `bevy_utils`
as they might be candidates for micro-crating. They can always be moved
into `bevy_platform_support` at a later date if desired.
# Objective
- Contributes to #16877
## Solution
- Expanded `bevy_platform_support::sync` module to provide
API-compatible replacements for `std` items such as `RwLock`, `Mutex`,
and `OnceLock`.
- Removed `spin` from all crates except `bevy_platform_support`.
## Testing
- CI
---
## Notes
- The sync primitives, while verbose, entirely rely on `spin` for their
implementation requiring no `unsafe` and not changing the status-quo on
_how_ locks actually work within Bevy. This is just a refactoring to
consolidate the "hacks" and workarounds required to get a consistent
experience when either using `std::sync` or `spin`.
- I have opted to rely on `std::sync` for `std` compatible locks,
maintaining the status quo. However, now that we have these locks
factored out into the own module, it would be trivial to investigate
alternate locking backends, such as `parking_lot`.
- API for these locking types is entirely based on `std`. I have
implemented methods and types which aren't currently in use within Bevy
(e.g., `LazyLock` and `Once`) for the sake of completeness. As the
standard library is highly stable, I don't expect the Bevy and `std`
implementations to drift apart much if at all.
---------
Co-authored-by: BD103 <59022059+BD103@users.noreply.github.com>
Co-authored-by: Benjamin Brienen <benjamin.brienen@outlook.com>
# Objective
- Contributes to #16877
## Solution
- Initial creation of `bevy_platform_support` crate.
- Moved `bevy_utils::Instant` into new `bevy_platform_support` crate.
- Moved `portable-atomic`, `portable-atomic-util`, and
`critical-section` into new `bevy_platform_support` crate.
## Testing
- CI
---
## Showcase
Instead of needing code like this to import an `Arc`:
```rust
#[cfg(feature = "portable-atomic")]
use portable_atomic_util::Arc;
#[cfg(not(feature = "portable-atomic"))]
use alloc::sync::Arc;
```
We can now use:
```rust
use bevy_platform_support::sync::Arc;
```
This applies to many other types, but the goal is overall the same:
allowing crates to use `std`-like types without the boilerplate of
conditional compilation and platform-dependencies.
## Migration Guide
- Replace imports of `bevy_utils::Instant` with
`bevy_platform_support::time::Instant`
- Replace imports of `bevy::utils::Instant` with
`bevy::platform_support::time::Instant`
## Notes
- `bevy_platform_support` hasn't been reserved on `crates.io`
- ~~`bevy_platform_support` is not re-exported from `bevy` at this time.
It may be worthwhile exporting this crate, but I am unsure of a
reasonable name to export it under (`platform_support` may be a bit
wordy for user-facing).~~
- I've included an implementation of `Instant` which is suitable for
`no_std` platforms that are not Wasm for the sake of eliminating feature
gates around its use. It may be a controversial inclusion, so I'm happy
to remove it if required.
- There are many other items (`spin`, `bevy_utils::Sync(Unsafe)Cell`,
etc.) which should be added to this crate. I have kept the initial scope
small to demonstrate utility without making this too unwieldy.
---------
Co-authored-by: TimJentzsch <TimJentzsch@users.noreply.github.com>
Co-authored-by: Chris Russell <8494645+chescock@users.noreply.github.com>
Co-authored-by: François Mockers <francois.mockers@vleue.com>
# Objective & Solution
- Update `downcast-rs` to the latest version, 2.
- Disable (new) `sync` feature to improve compatibility with atomically
challenged platforms.
- Remove stub `downcast-rs` alternative code from `bevy_app`
## Testing
- CI
## Notes
The only change from version 1 to version 2 is the addition of a new
`sync` feature, which allows disabling the `DowncastSync` parts of
`downcast-rs`, which require access to `alloc::sync::Arc`, which is not
available on atomically challenged platforms. Since Bevy makes no use of
the functionality provided by the `sync` feature, I've disabled it in
all crates. Further details can be found
[here](https://github.com/marcianx/downcast-rs/pull/22).
Bump version after release
This PR has been auto-generated
---------
Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François Mockers <mockersf@gmail.com>
# Objective
Simplify the code by using `macro_rules` instead of a proc macro where
possible.
## Solution
Replace `impl_param_set` proc macro with a `macro_rules` macro.
Updating dependencies; adopted version of #15696. (Supercedes #15696.)
Long answer: hashbrown is no longer using ahash by default, meaning that
we can't use the default-hasher methods with ahasher. So, we have to use
the longer-winded versions instead. This takes the opportunity to also
switch our default hasher as well, but without actually enabling the
default-hasher feature for hashbrown, meaning that we'll be able to
change our hasher more easily at the cost of all of these method calls
being obnoxious forever.
One large change from 0.15 is that `insert_unique_unchecked` is now
`unsafe`, and for cases where unsafe code was denied at the crate level,
I replaced it with `insert`.
## Migration Guide
`bevy_utils` has updated its version of `hashbrown` to 0.15 and now
defaults to `foldhash` instead of `ahash`. This means that if you've
hard-coded your hasher to `bevy_utils::AHasher` or separately used the
`ahash` crate in your code, you may need to switch to `foldhash` to
ensure that everything works like it does in Bevy.
# Objective
- Remove `derive_more`'s error derivation and replace it with
`thiserror`
## Solution
- Added `derive_more`'s `error` feature to `deny.toml` to prevent it
sneaking back in.
- Reverted to `thiserror` error derivation
## Notes
Merge conflicts were too numerous to revert the individual changes, so
this reversion was done manually. Please scrutinise carefully during
review.
# Objective
- Contributes to #15460
## Solution
- Added `std` feature (enabled by default)
## Testing
- CI
- `cargo check -p bevy_reflect --no-default-features --target
"x86_64-unknown-none"`
- UEFI demo application runs with this branch of `bevy_reflect`,
allowing `derive(Reflect)`
## Notes
- The [`spin`](https://crates.io/crates/spin) crate has been included to
provide `RwLock` and `Once` (as an alternative to `OnceLock`) when the
`std` feature is not enabled. Another alternative may be more desirable,
please provide feedback if you have a strong opinion here!
- Certain items (`Box`, `String`, `ToString`) provided by `alloc` have
been added to `__macro_exports` as a way to avoid `alloc` vs `std`
namespacing. I'm personally quite annoyed that we can't rely on `alloc`
as a crate name in `std` environments within macros. I'd love an
alternative to my approach here, but I suspect it's the least-bad
option.
- I would've liked to have an `alloc` feature (for allocation-free
`bevy_reflect`), unfortunately, `erased_serde` unconditionally requires
access to `Box`. Maybe one day we could design around this, but for now
it just means `bevy_reflect` requires `alloc`.
---------
Co-authored-by: Gino Valente <49806985+MrGVSV@users.noreply.github.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
Fixes#15941
## Solution
Created https://crates.io/crates/variadics_please and moved the code
there; updating references
`bevy_utils/macros` is deleted.
## Testing
cargo check
## Migration Guide
Use `variadics_please::{all_tuples, all_tuples_with_size}` instead of
`bevy::utils::{all_tuples, all_tuples_with_size}`.
# Objective
MSRV in the standalone crates should be accurate
## Solution
Determine the msrv of each crate and set it
## Testing
Adding better msrv checks to the CI is a next-step.
# Objective
#15349 added an `impl_reflect!` for `glam::EulerRot`. This was done by
copying and pasting the enum definition from `glam` into `bevy_reflect`
so that the macro could interpret the variants.
However, as mentioned in the description for that PR, this would need to
be updated for `glam` 0.29, as it had not been updated yet.
#15249 came and updated `glam` to 0.29, but did not change these impls.
This is understandable as failing to do so doesn't cause any compile
errors.
This PR updates the definition and aims to make this silent breakage a
little less silent.
## Solution
Firstly, I updated the definition for `EulerRot` to match the one from
`glam`.
Secondly, I added the `assert_type_match` crate, which I created
specifically to solve this problem. By using this crate, we'll get a
compile time error if `glam` ever decides to change `EulerRot` again.
In the future we can consider using it for other types with this
problem, including in other crates (I'm pretty sure `bevy_window` and/or
`bevy_winit` also copy+paste some types). I made sure to use as few
dependencies as possible so everything should already be in-tree (it's
just `quote`, `proc-macro2`, and `syn` with default features).
## Testing
No tests added. CI should pass.
---
## Migration Guide
The reflection implementation for `EulerRot` has been updated to align
with `glam` 0.29. Please update any reflection-based usages accordingly.
# Objective
Updating ``glam`` to 0.29, ``encase`` to 0.10.
## Solution
Update the necessary ``Cargo.toml`` files.
## Testing
Ran ``cargo run -p ci`` on Windows; no issues came up.
---------
Co-authored-by: aecsocket <aecsocket@tutanota.com>
# Objective
Fixes#15351
## Solution
- Created new external crate and ported over the code
## Testing
- CI
## Migration guide
Replace references to `bevy_utils::ShortName` with
`disqualified::ShortName`.
# Objective
In order to derive `Reflect`, all of a struct's fields must implement
`FromReflect`. [As part of looking into some of the work mentioned
here](https://github.com/bevyengine/bevy/issues/13713#issuecomment-2364786694),
I noticed that `TextureFormat` doesn't implement `Reflect`, and decided
to split that into a separate PR.
## Solution
I decided that `TextureFormat` should be a `reflect_value` since,
although one variant has fields, most users will treat this as an opaque
value set explicitly. It also substantially reduces the complexity of
the implementation.
For now, this implementation isn't actually used by any crates, so, I
decided to not preemptively enable the feature on anything. But it's
technically an option, now, and more `wgpu` types can be added in the
future.
## Testing
Everything compiles okay, and I can't really see how this could be done
incorrectly given the above constraints.
# Objective
- Goal is to minimize bevy_utils #11478
## Solution
- Move the file short_name wholesale into bevy_reflect
## Testing
- Unit tests
- CI
## Migration Guide
- References to `bevy_utils::ShortName` should instead now be
`bevy_reflect::ShortName`.
---------
Co-authored-by: François Mockers <francois.mockers@vleue.com>
# Objective
Reflection serialization can be difficult to debug. A lot of times a
type fails to be serialized and the user is left wondering where that
type came from.
This is most often encountered with Bevy's scenes. Attempting to
serialize all resources in the world will fail because some resources
can't be serialized.
For example, users will often get complaints about `bevy_utils::Instant`
not registering `ReflectSerialize`. Well, `Instant` can't be serialized,
so the only other option is to exclude the resource that contains it.
But what resource contains it? This is where reflection serialization
can get a little tricky (it's `Time<Real>` btw).
## Solution
Add the `debug_stack` feature to `bevy_reflect`. When enabled, the
reflection serializers and deserializers will keep track of the current
type stack. And this stack will be used in error messages to help with
debugging.
Now, if we unknowingly try to serialize `Time<Real>`, we'll get the
following error:
```
type `bevy_utils::Instant` did not register the `ReflectSerialize` type data. For certain types, this may need to be registered manually using `register_type_data` (stack: `bevy_time::time::Time<bevy_time::real::Real>` -> `bevy_time::real::Real` -> `bevy_utils::Instant`)
```
### Implementation
This makes use of `thread_local!` to manage an internal `TypeInfoStack`
which holds a stack of `&'static TypeInfo`. We push to the stack before
a type is (de)serialized and pop from the stack afterwards.
Using a thread-local should be fine since we know two (de)serializers
can't be running at the same time (and if they're running on separate
threads, then we're still good).
The only potential issue would be if a user went through one of the
sub-serializers, like `StructSerializer`. However, I don't think many
users are going through these types (I don't even know if we necessarily
want to keep those public either, but we'll save that for a different
PR). Additionally, this is just a debug feature that only affects error
messages, so it wouldn't have any drastically negative effect. It would
just result in the stack not being cleared properly if there were any
errors.
Lastly, this is not the most performant implementation since we now
fetch the `TypeInfo` an extra time. But I figured that for a debug tool,
it wouldn't matter too much.
### Feature
This also adds a `debug` feature, which enables the `debug_stack`
feature.
I added it because I think we may want to potentially add more debug
tools in the future, and this gives us a good framework for adding
those. Users who want all debug features, present and future, can just
set `debug`. If they only want this feature, then they can just use
`debug_stack`.
I also made the `debug` feature default to help capture the widest
audience (i.e. the users who want this feature but don't know they do).
However, if we think it's better as a non-default feature, I can change
it!
And if there's any bikeshedding around the name `debug_stack`, let me
know!
## Testing
Run the following command:
```
cargo test --package bevy_reflect --features debug_stack
```
---
## Changelog
- Added the `debug` and `debug_stack` features to `bevy_reflect`
- Updated the error messages returned by the reflection serializers and
deserializers to include more contextual information when the
`debug_stack` or `debug` feature is enabled
# Objective
- Fixes#14969
## Solution
- Added `Deserialize` to the list of reflected traits for `SmolStr`
## Testing
- CI passed locally.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Basically it's https://github.com/bevyengine/bevy/pull/13792 with the
bumped versions of `encase` and `hexasphere`.
---------
Co-authored-by: Robert Swain <robert.swain@gmail.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
- Fix issue #2611
## Solution
- Add `--generate-link-to-definition` to all the `rustdoc-args` arrays
in the `Cargo.toml`s (for docs.rs)
- Add `--generate-link-to-definition` to the `RUSTDOCFLAGS` environment
variable in the docs workflow (for dev-docs.bevyengine.org)
- Document all the workspace crates in the docs workflow (needed because
otherwise only the source code of the `bevy` package will be included,
making the argument useless)
- I think this also fixes#3662, since it fixes the bug on
dev-docs.bevyengine.org, while on docs.rs it has been fixed for a while
on their side.
---
## Changelog
- The source code viewer on docs.rs now includes links to the
definitions.
# Objective
Function reflection requires a lot of macro code generation in the form
of several `all_tuples!` invocations, as well as impls generated in the
`Reflect` derive macro.
Seeing as function reflection is currently a bit more niche, it makes
sense to gate it all behind a feature.
## Solution
Add a `functions` feature to `bevy_reflect`, which can be enabled in
Bevy using the `reflect_functions` feature.
## Testing
You can test locally by running:
```
cargo test --package bevy_reflect
```
That should ensure that everything still works with the feature
disabled.
To test with the feature on, you can run:
```
cargo test --package bevy_reflect --features functions
```
---
## Changelog
- Moved function reflection behind a Cargo feature
(`bevy/reflect_functions` and `bevy_reflect/functions`)
- Add `IntoFunction` export in `bevy_reflect::prelude`
## Internal Migration Guide
> [!important]
> Function reflection was introduced as part of the 0.15 dev cycle. This
migration guide was written for developers relying on `main` during this
cycle, and is not a breaking change coming from 0.14.
Function reflection is now gated behind a feature. To use function
reflection, enable the feature:
- If using `bevy_reflect` directly, enable the `functions` feature
- If using `bevy`, enable the `reflect_functions` feature
Bump version after release
This PR has been auto-generated
Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François Mockers <mockersf@gmail.com>
# Objective
Fixes#13456
## Solution
Moved `bevy_math`'s `Reflect` impls from `bevy_reflect` to `bevy_math`.
### Quick note
I accidentally used the same commit message while resolving a merge
conflict (first time I had to resolve a conflict). Sorry about that.
# Objective
As was pointed out in #13183, `bevy_mikktspace` is missing it's msrv
from it `Cargo.toml`. This promted me to check the msrv of every
`bevy_*` crate. Closes#13183.
## Solution
- Call `cargo check` with different rust versions on every bevy crate
until it doesn't complain.
- Write down the rust version `cargo check` started working.
## Testing
- Install `cargo-msrv`.
- Run `cargo msrv verify`.
- Rejoice.
---
## Changelog
Every published bevy crate now specifies a MSRV. If your rust toolchain
isn't at least version `1.77.0` You'll likely not be able to compile
most of bevy.
## Migration Guide
If your rust toolchain is bellow version`1.77.0, update.
# Objective
- Some of the "large" crates have sub-crates, usually for things such as
macros.
- For an example, see [`bevy_ecs_macros` at
`bevy_ecs/macros`](4f9f987099/crates/bevy_ecs/macros).
- The one crate that does not follow this convention is
[`bevy_reflect_derive`](4f9f987099/crates/bevy_reflect/bevy_reflect_derive),
which is in the `bevy_reflect/bevy_reflect_derive` folder and not
`bevy_reflect/derive` or `bevy_reflect/macros`.
## Solution
- Rename folder `bevy_reflect_derive` to `derive`.
- I chose to use `derive` instead of `macros` because the crate name
itself ends in `_derive`. (One of only two crates to actually use this
convention, funnily enough.)
## Testing
- Build and test `bevy_reflect` and `bevy_reflect_derive`.
- Apply the following patch to `publish.sh` to run it in `--dry-run`
mode, to test that the path has been successfully updated:
- If you have any security concerns about applying random diffs, feel
free to skip this step. Worst case scenario it fails and Cart has to
manually publish a few crates.
```bash
# Apply patch to make `publish.sh` *not* actually publish anything.
git apply path/to/foo.patch
# Make `publish.sh` executable.
chmod +x tools/publish.sh
# Execute `publish.sh`.
./tools/publish.sh
```
```patch
diff --git a/tools/publish.sh b/tools/publish.sh
index b020bad28..fbcc09281 100644
--- a/tools/publish.sh
+++ b/tools/publish.sh
@@ -49,7 +49,7 @@ crates=(
if [ -n "$(git status --porcelain)" ]; then
echo "You have local changes!"
- exit 1
+ # exit 1
fi
pushd crates
@@ -61,15 +61,15 @@ do
cp ../LICENSE-APACHE "$crate"
pushd "$crate"
git add LICENSE-MIT LICENSE-APACHE
- cargo publish --no-verify --allow-dirty
+ cargo publish --no-verify --allow-dirty --dry-run
popd
- sleep 20
+ # sleep 20
done
popd
echo "Publishing root crate"
-cargo publish --allow-dirty
+cargo publish --allow-dirty --dry-run
echo "Cleaning local state"
git reset HEAD --hard
```
---
## Changelog
- Moved `bevy_reflect_derive` from
`crates/bevy_reflect/bevy_reflect_derive` to
`crates/bevy_reflect/derive`.