trie_rs/internal_data_structure/naive_trie.rs
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pub mod naive_trie_b_f_iter;
pub mod naive_trie_impl;
#[cfg(feature = "mem_dbg")]
use mem_dbg::MemDbg;
#[derive(Debug, Clone)]
#[cfg_attr(feature = "mem_dbg", derive(mem_dbg::MemDbg, mem_dbg::MemSize))]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
/// Naive trie with ordered Label sequence in edges.
///
/// The following naive trie contains these words.
/// - a
/// - app
/// - apple
/// - application
///
/// ```text
/// <Root>
/// |
/// | a: Label
/// <IntermOrLeaf (Terminate)>
/// |
/// | p
/// <IntermOrLeaf>
/// |
/// | p
/// <IntermOrLeaf (Terminate)>
/// |
/// | l
/// <IntermOrLeaf>
/// |------------------------------+
/// | e | i
/// <IntermOrLeaf (Terminate)> <IntermOrLeaf>
/// |
/// | c
/// <IntermOrLeaf>
/// |
/// | a
/// <IntermOrLeaf>
/// |
/// | t
/// <IntermOrLeaf>
/// |
/// | i
/// <IntermOrLeaf>
/// |
/// | o
/// <IntermOrLeaf>
/// |
/// | n
/// <IntermOrLeaf (Terminate)>
/// ```
pub enum NaiveTrie<Label, Value> {
Root(NaiveTrieRoot<Label, Value>),
IntermOrLeaf(NaiveTrieIntermOrLeaf<Label, Value>),
/// Used for Breadth-First iteration.
///
/// ```text
/// <Root>
/// |
/// |------------------+- - - - - - - - +
/// | a | i |
/// <IntermOrLeaf> <IntermOrLeaf> <PhantomSibling>
/// | |
/// . +- - - - - - - - +
/// | | n |
/// <PhantomSibling> <IntermOrLeaf> <PhantomSibling>
/// |
/// |
/// |
/// <PhantomSibling>
/// ```
///
/// This trie's BFIter emits:
/// `a i <PhantomSibling> <PhantomSibling> n <PhantomSibling> <PhantomSibling>`
PhantomSibling,
}
#[derive(Debug, Clone)]
#[cfg_attr(feature = "mem_dbg", derive(mem_dbg::MemDbg, mem_dbg::MemSize))]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct NaiveTrieRoot<Label, Value> {
/// Sorted by Label's order.
children: Vec<NaiveTrie<Label, Value>>,
}
#[derive(Debug, Clone)]
#[cfg_attr(feature = "mem_dbg", derive(mem_dbg::MemDbg, mem_dbg::MemSize))]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct NaiveTrieIntermOrLeaf<Label, Value> {
/// Sorted by Label's order.
children: Vec<NaiveTrie<Label, Value>>,
pub(crate) label: Label,
pub(crate) value: Option<Value>,
}