rust-dict
Crate implementing real associative arrays, also known as dictionaries.
use dict::{ Dict, DictIface };
//create a dictionary of strings
let mut dict = Dict::<String>::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 );