Struct PerfectMap 

pub struct PerfectMap<V: Copy + 'static, const N: usize> { /* private fields */ }

A map from the strings of a fixed set to values, built at compile time.

use cranpose_core::collections::perfect_map::PerfectMap;

const DIGITS: PerfectMap<u8, 3> = PerfectMap::new([("zero", 0), ("one", 1), ("two", 2)]);
assert_eq!(DIGITS.get("one"), Some(&1));
assert_eq!(DIGITS.get("three"), None);

Implementations

impl<V: Copy + 'static, const N: usize> PerfectMap<V, N>

pub const fn new(entries: [(&'static str, V); N]) -> Self

The map of entries. Called in a const, it fails the build when two keys are equal, when there are more than MAX_KEYS, or when no seed places every key.

pub fn get(&self, key: &str) -> Option<&V>

The value of key, if it is one of the map’s keys.