https://github.com/nachoparker/rust-dict

Exercise crate implementing real associative arrays, also known as dictionaries.
https://github.com/nachoparker/rust-dict

associative-array dictionary rust rust-lang

Last synced: about 1 month ago
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Exercise crate implementing real associative arrays, also known as dictionaries.

• Host: GitHub
• URL: https://github.com/nachoparker/rust-dict
• Owner: nachoparker
• License: gpl-3.0
• Created: 2018-04-16T20:07:25.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2021-12-23T14:25:02.000Z (about 3 years ago)
• Last Synced: 2024-10-13T03:19:12.414Z (3 months ago)
• Topics: associative-array, dictionary, rust, rust-lang
• Language: Rust
• Homepage:
• Size: 13.7 KB
• Stars: 2
• Watchers: 4
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# rust-dict

Exercise crate implementing real associative arrays, also known as dictionaries.

This is a toy example. In practice better use std::collections::HashMap

```

use dict::{ Dict, DictIface };

//create a dictionary of strings

let mut dict = Dict::::new();

assert_eq!( dict.is_empty(), true );

assert_eq!( dict.len(), 0 );

// add an element "val" indexed by the key "key"

assert_eq!( dict.add( "key".to_string(), "val".to_string() ), true );

assert_eq!( dict.is_empty(), false );

assert_eq!( dict.len(), 1 );

// keys must be unique

assert_eq!( dict.add( "key".to_string()      , "other_val".to_string() ), false );

assert_eq!( dict.len(), 1 );

assert_eq!( dict.add( "other_key".to_string(), "other_val".to_string() ), true );

assert_eq!( dict.len(), 2 );

// we can iterate just like an array

for o in &dict {

    println!( "{} - {}", o.key, o.val );

}

dict.iter().for_each( |o| println!( "{} - {}", o.key, o.val ) );

// we can access the value by its key string with get()

assert_eq!( dict.get( "key" ).unwrap(), "val" );

assert_eq!( dict.contains_key( "key" ), true );

assert_eq!( dict.remove_key( "key" ).unwrap(), "val" );

assert_eq!( dict.contains_key( "key" ), false );

```

[ownyourbits.com](https://ownyourbits.com)

[crates.io](https://crates.io/crates/dict)