https://github.com/ksxgithub/tap-trait

Inspect and mutate values without leaving the method chain
https://github.com/ksxgithub/tap-trait

chain crate no-std rust rust-patterns tap trait

Last synced: 22 days ago
JSON representation

Inspect and mutate values without leaving the method chain

• Host: GitHub
• URL: https://github.com/ksxgithub/tap-trait
• Owner: KSXGitHub
• License: mit
• Created: 2021-07-26T08:01:08.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-03-13T05:57:46.000Z (almost 3 years ago)
• Last Synced: 2024-04-25T18:43:17.077Z (almost 2 years ago)
• Topics: chain, crate, no-std, rust, rust-patterns, tap, trait
• Language: Rust
• Homepage: https://crates.io/crates/tap-trait
• Size: 12.7 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE.md

Awesome Lists containing this project

README

          
# Tap Trait

[![Test](https://github.com/KSXGitHub/tap-trait/workflows/Test/badge.svg)](https://github.com/KSXGitHub/tap-trait/actions?query=workflow%3ATest)

[![Crates.io Version](https://img.shields.io/crates/v/tap-trait?logo=rust)](https://crates.io/crates/tap-trait)

Inspect and mutate values without leaving the method chain.

## Example

```rust

use tap_trait::Tap;

use pipe_trait::Pipe;

let result = 2i32

    .tap(|x| assert_eq!(x, 2))

    .tap_mut(|x| *x += 1)

    .tap(|x| assert_eq!(x, 3))

    .tap_mut(|x| *x *= 3)

    .tap(|x| assert_eq!(x, 9))

    .pipe(|x| -x)

    .tap(|x| assert_eq!(x, -9))

    .pipe_ref(ToString::to_string)

    .tap_ref(|x| assert_eq!(x, "-9"))

    .tap_mut(|x| *x += ".0")

    .tap_ref(|x| assert_eq!(x, "-9.0"));

assert_eq!(result, "-9.0");

```

## License

[MIT](https://git.io/J4otf) © [Hoàng Văn Khải](https://ksxgithub.github.io/).