Trait string_interner::Symbol

pub trait Symbol: Copy + Ord + Eq {
    fn from_usize(val: usize) -> Self;
    fn to_usize(self) -> usize;
}

Types implementing this trait are able to act as symbols for string interners.

Symbols are returned by StringInterner::get_or_intern and allow look-ups of the original string contents with StringInterner::resolve.

Note

Optimal symbols allow for efficient comparisons and have a small memory footprint.

Required methods

fn from_usize(val: usize) -> Self

Creates a symbol from a usize.

Note

Implementations panic if the operation cannot succeed.

fn to_usize(self) -> usize

Returns the usize representation of self.

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Implementations on Foreign Types

impl Symbol for usize

fn from_usize(val: usize) -> Self

fn to_usize(self) -> usize

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Implementors

impl Symbol for Sym

fn from_usize(val: usize) -> Self

Creates a Sym from the given usize.

Panics

If the given usize is greater than u32::MAX - 1.

fn to_usize(self) -> usize

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