d70595b667
# Objective - Fixes #6370 - Closes #6581 ## Solution - Added the following lints to the workspace: - `std_instead_of_core` - `std_instead_of_alloc` - `alloc_instead_of_core` - Used `cargo +nightly fmt` with [item level use formatting](https://rust-lang.github.io/rustfmt/?version=v1.6.0&search=#Item%5C%3A) to split all `use` statements into single items. - Used `cargo clippy --workspace --all-targets --all-features --fix --allow-dirty` to _attempt_ to resolve the new linting issues, and intervened where the lint was unable to resolve the issue automatically (usually due to needing an `extern crate alloc;` statement in a crate root). - Manually removed certain uses of `std` where negative feature gating prevented `--all-features` from finding the offending uses. - Used `cargo +nightly fmt` with [crate level use formatting](https://rust-lang.github.io/rustfmt/?version=v1.6.0&search=#Crate%5C%3A) to re-merge all `use` statements matching Bevy's previous styling. - Manually fixed cases where the `fmt` tool could not re-merge `use` statements due to conditional compilation attributes. ## Testing - Ran CI locally ## Migration Guide The MSRV is now 1.81. Please update to this version or higher. ## Notes - This is a _massive_ change to try and push through, which is why I've outlined the semi-automatic steps I used to create this PR, in case this fails and someone else tries again in the future. - Making this change has no impact on user code, but does mean Bevy contributors will be warned to use `core` and `alloc` instead of `std` where possible. - This lint is a critical first step towards investigating `no_std` options for Bevy. --------- Co-authored-by: François Mockers <francois.mockers@vleue.com>
28 lines
784 B
Rust
28 lines
784 B
Rust
use bevy_ecs::prelude::*;
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use criterion::Criterion;
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use glam::*;
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#[derive(Component)]
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struct A(Mat4);
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#[derive(Component)]
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struct B(Vec4);
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pub fn world_spawn(criterion: &mut Criterion) {
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let mut group = criterion.benchmark_group("spawn_world");
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group.warm_up_time(core::time::Duration::from_millis(500));
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group.measurement_time(core::time::Duration::from_secs(4));
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for entity_count in (0..5).map(|i| 10_u32.pow(i)) {
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group.bench_function(format!("{}_entities", entity_count), |bencher| {
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let mut world = World::default();
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bencher.iter(|| {
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for _ in 0..entity_count {
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world.spawn((A(Mat4::default()), B(Vec4::default())));
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}
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});
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});
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}
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group.finish();
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}
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