[Merged by Bors] - Replace many_for_each_mut with iter_many_mut.
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alice-i-cecile
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A-ECS
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I'm on board with this direction :) |
BoxyUwU
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Jul 21, 2022
cart
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Jul 30, 2022
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bors r+ |
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Jul 30, 2022
# Objective
Replace `many_for_each_mut` with `iter_many_mut` using the same tricks to avoid aliased mutability that `iter_combinations_mut` uses.
<sub>I tried rebasing the draft PR I made for this before and it died. F</sub>
## Why
`many_for_each_mut` is worse for a few reasons:
1. The closure prevents the use of `continue`, `break`, and `return` behaves like a limited `continue`.
2. rustfmt will crumple it and double the indentation when the line gets too long.
```rust
query.many_for_each_mut(
&entity_list,
|(mut transform, velocity, mut component_c)| {
// Double trouble.
},
);
```
3. It is more surprising to have `many_for_each_mut` as a mutable counterpart to `iter_many` than `iter_many_mut`.
4. It required a separate unsafe fn; more unsafe code to maintain.
5. The `iter_many_mut` API matches the existing `iter_combinations_mut` API.
Co-authored-by: devil-ira <justthecooldude@gmail.com>
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Pull request successfully merged into main. Build succeeded: |
bors
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changed the title
many_for_each_mut with iter_many_mut.many_for_each_mut with iter_many_mut.
inodentry
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Aug 8, 2022
# Objective
Replace `many_for_each_mut` with `iter_many_mut` using the same tricks to avoid aliased mutability that `iter_combinations_mut` uses.
<sub>I tried rebasing the draft PR I made for this before and it died. F</sub>
## Why
`many_for_each_mut` is worse for a few reasons:
1. The closure prevents the use of `continue`, `break`, and `return` behaves like a limited `continue`.
2. rustfmt will crumple it and double the indentation when the line gets too long.
```rust
query.many_for_each_mut(
&entity_list,
|(mut transform, velocity, mut component_c)| {
// Double trouble.
},
);
```
3. It is more surprising to have `many_for_each_mut` as a mutable counterpart to `iter_many` than `iter_many_mut`.
4. It required a separate unsafe fn; more unsafe code to maintain.
5. The `iter_many_mut` API matches the existing `iter_combinations_mut` API.
Co-authored-by: devil-ira <justthecooldude@gmail.com>
james7132
pushed a commit
to james7132/bevy
that referenced
this pull request
Oct 28, 2022
# Objective
Replace `many_for_each_mut` with `iter_many_mut` using the same tricks to avoid aliased mutability that `iter_combinations_mut` uses.
<sub>I tried rebasing the draft PR I made for this before and it died. F</sub>
## Why
`many_for_each_mut` is worse for a few reasons:
1. The closure prevents the use of `continue`, `break`, and `return` behaves like a limited `continue`.
2. rustfmt will crumple it and double the indentation when the line gets too long.
```rust
query.many_for_each_mut(
&entity_list,
|(mut transform, velocity, mut component_c)| {
// Double trouble.
},
);
```
3. It is more surprising to have `many_for_each_mut` as a mutable counterpart to `iter_many` than `iter_many_mut`.
4. It required a separate unsafe fn; more unsafe code to maintain.
5. The `iter_many_mut` API matches the existing `iter_combinations_mut` API.
Co-authored-by: devil-ira <justthecooldude@gmail.com>
ItsDoot
pushed a commit
to ItsDoot/bevy
that referenced
this pull request
Feb 1, 2023
# Objective
Replace `many_for_each_mut` with `iter_many_mut` using the same tricks to avoid aliased mutability that `iter_combinations_mut` uses.
<sub>I tried rebasing the draft PR I made for this before and it died. F</sub>
## Why
`many_for_each_mut` is worse for a few reasons:
1. The closure prevents the use of `continue`, `break`, and `return` behaves like a limited `continue`.
2. rustfmt will crumple it and double the indentation when the line gets too long.
```rust
query.many_for_each_mut(
&entity_list,
|(mut transform, velocity, mut component_c)| {
// Double trouble.
},
);
```
3. It is more surprising to have `many_for_each_mut` as a mutable counterpart to `iter_many` than `iter_many_mut`.
4. It required a separate unsafe fn; more unsafe code to maintain.
5. The `iter_many_mut` API matches the existing `iter_combinations_mut` API.
Co-authored-by: devil-ira <justthecooldude@gmail.com>
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Objective
Replace
many_for_each_mutwithiter_many_mutusing the same tricks to avoid aliased mutability thatiter_combinations_mutuses.I tried rebasing the draft PR I made for this before and it died. F
Why
many_for_each_mutis worse for a few reasons:continue,break, andreturnbehaves like a limitedcontinue.many_for_each_mutas a mutable counterpart toiter_manythaniter_many_mut.iter_many_mutAPI matches the existingiter_combinations_mutAPI.