polars::datatypes

Trait InitHashMaps

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pub trait InitHashMaps {
    type HashMap;

    // Required methods
    fn new() -> Self::HashMap;
    fn with_capacity(capacity: usize) -> Self::HashMap;
}

Required Associated Types§

Required Methods§

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fn new() -> Self::HashMap

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fn with_capacity(capacity: usize) -> Self::HashMap

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types§

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impl<K> InitHashMaps for HashSet<K, RandomState>

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type HashMap = HashSet<K, RandomState>

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fn new() -> <HashSet<K, RandomState> as InitHashMaps>::HashMap

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fn with_capacity(capacity: usize) -> HashSet<K, RandomState>

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impl<K> InitHashMaps for IndexSet<K, RandomState>

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type HashMap = IndexSet<K, RandomState>

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fn new() -> <IndexSet<K, RandomState> as InitHashMaps>::HashMap

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fn with_capacity( capacity: usize, ) -> <IndexSet<K, RandomState> as InitHashMaps>::HashMap

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impl<K, V> InitHashMaps for HashMap<K, V, RandomState>

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type HashMap = HashMap<K, V, RandomState>

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fn new() -> <HashMap<K, V, RandomState> as InitHashMaps>::HashMap

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fn with_capacity(capacity: usize) -> HashMap<K, V, RandomState>

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impl<K, V> InitHashMaps for IndexMap<K, V, RandomState>

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type HashMap = IndexMap<K, V, RandomState>

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fn new() -> <IndexMap<K, V, RandomState> as InitHashMaps>::HashMap

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fn with_capacity( capacity: usize, ) -> <IndexMap<K, V, RandomState> as InitHashMaps>::HashMap

Implementors§