38 lines
828 B
Rust
38 lines
828 B
Rust
use rustc_data_structures::fingerprint::Fingerprint;
|
|
use rustc_span::def_id::{DefIndex, DefPathHash};
|
|
|
|
#[derive(Clone, Default)]
|
|
pub struct Config;
|
|
|
|
impl odht::Config for Config {
|
|
type Key = DefPathHash;
|
|
type Value = DefIndex;
|
|
|
|
type EncodedKey = [u8; 16];
|
|
type EncodedValue = [u8; 4];
|
|
|
|
type H = odht::UnHashFn;
|
|
|
|
#[inline]
|
|
fn encode_key(k: &DefPathHash) -> [u8; 16] {
|
|
k.0.to_le_bytes()
|
|
}
|
|
|
|
#[inline]
|
|
fn encode_value(v: &DefIndex) -> [u8; 4] {
|
|
v.as_u32().to_le_bytes()
|
|
}
|
|
|
|
#[inline]
|
|
fn decode_key(k: &[u8; 16]) -> DefPathHash {
|
|
DefPathHash(Fingerprint::from_le_bytes(*k))
|
|
}
|
|
|
|
#[inline]
|
|
fn decode_value(v: &[u8; 4]) -> DefIndex {
|
|
DefIndex::from_u32(u32::from_le_bytes(*v))
|
|
}
|
|
}
|
|
|
|
pub type DefPathHashMap = odht::HashTableOwned<Config>;
|