Method entry_with_depth

cranelift/codegen/src/scoped_hash_map.rs:114–141

Get the entry, setting the scope depth at which to insert.

(&'a mut self, ctx: &C, key: K, depth: usize)

    /// Get the entry, setting the scope depth at which to insert.
    pub fn entry_with_depth<'a, C>(&'a mut self, ctx: &C, key: K, depth: usize) -> Entry<'a, K, V>
    where
        C: CtxEq<K, K> + CtxHash<K>,
    {
        debug_assert!(depth <= self.generation_by_depth.len());
        let generation = self.generation_by_depth[depth];
        let depth = depth as u32;
        match self.map.entry(key, ctx) {
            crate::ctxhash::Entry::Occupied(entry) => {
                let entry_generation = entry.get().generation;
                let entry_depth = entry.get().level as usize;
                if self.generation_by_depth.get(entry_depth).cloned() == Some(entry_generation) {
                    Entry::Occupied(OccupiedEntry { entry })
                } else {
                    Entry::Vacant(VacantEntry {
                        entry: InsertLoc::Occupied(entry),
                        depth,
                        generation,
                    })
                }
            }
            crate::ctxhash::Entry::Vacant(entry) => Entry::Vacant(VacantEntry {
                entry: InsertLoc::Vacant(entry),
                depth,
                generation,
            }),
        }
    }

    /// Get a value from a key, if present.
    pub fn get<'a, C>(&'a self, ctx: &C, key: &K) -> Option<&'a V>