1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139

#![cfg(feature = "multi-threaded")]

use crate::{Interner, Key, Reader, Resolver, ThreadedRodeo};
use core::hash::{BuildHasher, Hash};

impl<K, S> Interner<K> for &ThreadedRodeo<K, S>
where
    K: Key + Hash,
    S: BuildHasher + Clone,
{
    fn get_or_intern(&mut self, val: &str) -> K {
        ThreadedRodeo::get_or_intern(self, val)
    }

    fn try_get_or_intern(&mut self, val: &str) -> crate::LassoResult<K> {
        ThreadedRodeo::try_get_or_intern(self, val)
    }

    fn get_or_intern_static(&mut self, val: &'static str) -> K {
        ThreadedRodeo::get_or_intern_static(self, val)
    }

    fn try_get_or_intern_static(&mut self, val: &'static str) -> crate::LassoResult<K> {
        ThreadedRodeo::try_get_or_intern_static(self, val)
    }
}

impl<K, S> Reader<K> for &ThreadedRodeo<K, S>
where
    K: Key + Hash,
    S: BuildHasher + Clone,
{
    fn get(&self, val: &str) -> Option<K> {
        ThreadedRodeo::get(self, val)
    }

    fn contains(&self, val: &str) -> bool {
        ThreadedRodeo::contains(self, val)
    }
}

impl<K, S> Resolver<K> for &ThreadedRodeo<K, S>
where
    K: Key + Hash,
    S: BuildHasher + Clone,
{
    fn resolve<'a>(&'a self, key: &K) -> &'a str {
        ThreadedRodeo::resolve(self, key)
    }

    fn try_resolve<'a>(&'a self, key: &K) -> Option<&'a str> {
        ThreadedRodeo::try_resolve(self, key)
    }

    unsafe fn resolve_unchecked<'a>(&'a self, key: &K) -> &'a str {
        ThreadedRodeo::resolve_unchecked(self, key)
    }

    fn contains_key(&self, key: &K) -> bool {
        ThreadedRodeo::contains_key(self, key)
    }

    fn len(&self) -> usize {
        ThreadedRodeo::len(self)
    }
}

#[cfg(test)]
mod test {
    use super::super::tests::{filled_threaded_rodeo, INTERNED_STRINGS, UNINTERNED_STRINGS};
    use super::*;
    use crate::{Key, Spur};

    #[test]
    fn threaded_rodeo_ref_trait_implementations() {
        let interner = filled_threaded_rodeo();
        let shared_ref1 = &interner;
        let shared_ref2 = &interner;
        for (key, string) in INTERNED_STRINGS
            .iter()
            .copied()
            .enumerate()
            .map(|(i, s)| (Spur::try_from_usize(i).unwrap(), s))
        {
            assert!(shared_ref1.get(string).is_some());
            assert!(shared_ref2.get(string).is_some());
            assert!(shared_ref1.contains(string));
            assert!(shared_ref2.contains(string));

            assert!(shared_ref1.contains_key(&key));
            assert!(shared_ref2.contains_key(&key));
            assert_eq!(shared_ref1.resolve(&key), string);
            assert_eq!(shared_ref2.resolve(&key), string);
            assert!(shared_ref1.try_resolve(&key).is_some());
            assert!(shared_ref2.try_resolve(&key).is_some());
            assert_eq!(shared_ref1.try_resolve(&key), Some(string));
            assert_eq!(shared_ref2.try_resolve(&key), Some(string));

            unsafe {
                assert_eq!(shared_ref1.resolve_unchecked(&key), string);
                assert_eq!(shared_ref2.resolve_unchecked(&key), string);
            }
        }

        assert_eq!(interner.len(), INTERNED_STRINGS.len());
        for string in UNINTERNED_STRINGS.iter().copied() {
            let key = interner.get_or_intern(string);
            assert_eq!(shared_ref1.try_get_or_intern(string), Ok(key));
            assert_eq!(shared_ref2.try_get_or_intern(string), Ok(key));
            assert_eq!(shared_ref1.get_or_intern_static(string), key);
            assert_eq!(shared_ref2.get_or_intern_static(string), key);
            assert_eq!(shared_ref1.try_get_or_intern_static(string), Ok(key));
            assert_eq!(shared_ref2.try_get_or_intern_static(string), Ok(key));

            assert!(shared_ref1.get(string).is_some());
            assert!(shared_ref2.get(string).is_some());
            assert!(shared_ref1.contains(string));
            assert!(shared_ref2.contains(string));

            assert!(shared_ref1.contains_key(&key));
            assert!(shared_ref2.contains_key(&key));
            assert_eq!(shared_ref1.resolve(&key), string);
            assert_eq!(shared_ref2.resolve(&key), string);
            assert!(shared_ref1.try_resolve(&key).is_some());
            assert!(shared_ref2.try_resolve(&key).is_some());
            assert_eq!(shared_ref1.try_resolve(&key), Some(string));
            assert_eq!(shared_ref2.try_resolve(&key), Some(string));

            unsafe {
                assert_eq!(shared_ref1.resolve_unchecked(&key), string);
                assert_eq!(shared_ref2.resolve_unchecked(&key), string);
            }
        }
        assert_eq!(
            interner.len(),
            INTERNED_STRINGS.len() + UNINTERNED_STRINGS.len(),
        );
    }
}