https://github.com/ytvwld/update_cell

A Cell<Option<T>> that you can update
https://github.com/ytvwld/update_cell

Last synced: 7 days ago
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A Cell<Option<T>> that you can update

• Host: GitHub
• URL: https://github.com/ytvwld/update_cell
• Owner: YtvwlD
• Created: 2023-07-21T12:35:05.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-07-21T12:58:49.000Z (over 1 year ago)
• Last Synced: 2024-10-10T18:56:37.725Z (28 days ago)
• Language: Rust
• Size: 3.91 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# update_cell

A `Cell>` that you can update

## Why would I need this?

[`Cell::update`] is currently experimental. And it only supports types

that are `Copy`. So if you want to store and modify something that is

neither `Copy` nor has a `Default` (eg. a builder), this crate might be

useful.

## Usage

Add this to your `Cargo.toml`:

```toml

[dependencies]

update_cell = "0.1"

```

And if you have a struct, you can put it inside and modify it:

```rust

use update_cell::UpdateCell;

struct MySuperFancyStruct {

    inner: bool

}

impl MySuperFancyStruct {

    fn new() -> Self {

        Self { inner: false }

    }

    fn toggle(mut self) -> Self {

        self.inner = !self.inner;

        self

    }

}

let mut cell = UpdateCell::new(MySuperFancyStruct::new());

cell.update(|s| s.toggle());

```

License: MPL-2.0