Remove uses of pin_project::project attribute #2176
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pin-project will deprecate the project attribute due to some unfixable limitations. Refs: taiki-e/pin-project#225
taiki-e
commented
Jun 6, 2020
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| use crate::fns::FnOnce1; | ||
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| /// Internal Map future | ||
| #[pin_project(Replace)] | ||
| #[pin_project(Replace, project = MapProj, project_replace = MapProjOwn)] |
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It is not ideal that we need to have both Replace and project_replace = <name> as project_replace = <name> implies that a project_replace method is generated.
I'll fix it soon.
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Fixed in pin-project 0.4.20 (taiki-e/pin-project#243)
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Jun 6, 2020
243: Allow `project_replace` argument to be used without `Replace` r=taiki-e a=taiki-e
Currently, both `Replace` and `project_replace = <name>` arguments are required to name the return value of `project_replace()` method.
```rust
#[pin_project(Replace, project_replace = EnumProjOwn)]
enum Enum<T> {
Variant(#[pin] T)
}
```
It is not ideal that we need to have both `Replace` and `project_replace = <name>` as `project_replace = <name>` implies that a `project_replace` method is generated.
This PR makes `project_replace` argument to use without `Replace` argument.
```diff
- #[pin_project(Replace, project_replace = EnumProjOwn)]
+ #[pin_project(project_replace = EnumProjOwn)]
enum Enum<T> {
Variant(#[pin] T)
}
```
Also, makes `project_replace` argument an alias for `Replace` so that it can be used without a value.
```rust
#[pin_project(project_replace)]
enum Enum<T> {
Variant(#[pin] T)
}
```
Related: rust-lang/futures-rs#2176 (comment) hyperium/hyper#2220 (comment)
Co-authored-by: Taiki Endo <te316e89@gmail.com>
Nemo157
approved these changes
Jun 9, 2020
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Thanks! The number of PRs you've done for this deprecation is pretty epic 😁 |
exrook
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Apr 5, 2021
Remove uses of pin_project::project attribute
exrook
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Apr 5, 2021
Remove uses of pin_project::project attribute
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pin-project will deprecate the project attribute due to some unfixable
limitations.
Refs: taiki-e/pin-project#225
Although the deprecation of the project attribute has not been released yet, this PR is submitted in advance to avoid the CI from being broken by deprecated warnings.