https://github.com/archenoth/result

A destructurable Rust-style Result type for Java!
https://github.com/archenoth/result

destructuring java null-safety result-type sealed-interface

Last synced: 2 days ago
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A destructurable Rust-style Result type for Java!

• Host: GitHub
• URL: https://github.com/archenoth/result
• Owner: Archenoth
• License: epl-1.0
• Created: 2024-01-15T05:57:37.000Z (12 months ago)
• Default Branch: main
• Last Pushed: 2024-01-15T05:59:05.000Z (12 months ago)
• Last Synced: 2024-11-08T10:08:49.457Z (about 2 months ago)
• Topics: destructuring, java, null-safety, result-type, sealed-interface
• Language: Java
• Homepage:
• Size: 50.8 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# A destructurable Result type for Java 21+!

This library is a simple `Result` sealed interface allowing you to eliminate `null` in all kinds of places in a way that [Rustaceans have enjoyed for a long time](https://doc.rust-lang.org/std/result/)~

Meaning you can do things like this!

```java

if(somethingThatReturnsAResult() instanceof Some(File found)){

    file.delete();

}

```

or this!

```java

return switch(somethingThatReturnsAResult()){

    case Some(String message) -> message;

    case None() -> "Uh oh, nothing??";

};

```

or even this!

```java

return switch(somethingThatReturnsAResult()){

    case Some(val num) when num == 1 -> num + " thing";

    case Some(val num) -> num + " things!";

    case None() -> "Uh oh, nothing??";

};

```

All you need to do is wrap your return value with a `Result.of()`. It even works with wrapped `Optional` values!