Struct forest_actor::util::Set

pub struct Set<'a, BS>(_);

Set is a Hamt with empty values for the purpose of acting as a hash set.

Implementations

impl<'a, BS> Set<'a, BS> where
    BS: BlockStore, 

pub fn new(bs: &'a BS) -> Self

Initializes a new empty Set with the default bitwidth.

pub fn new_set_with_bitwidth(bs: &'a BS, bitwidth: u32) -> Self

Initializes a new empty Set given a bitwidth.

pub fn from_root(bs: &'a BS, cid: &Cid) -> Result<Self, Error>

Initializes a Set from a root Cid.

pub fn root(&mut self) -> Result<Cid, Error>

Retrieve root from the Set.

pub fn put(&mut self, key: BytesKey) -> Result<(), Error>

Adds key to the set.

pub fn has(&self, key: &[u8]) -> Result<bool, Error>

Checks if key exists in the set.

pub fn delete(&mut self, key: &[u8]) -> Result<Option<()>, Error>

Deletes key from set.

pub fn for_each<F>(&self, f: F) -> Result<(), Box<dyn StdError>> where
    F: FnMut(&BytesKey) -> Result<(), Box<dyn StdError>>, 

Iterates through all keys in the set.

pub fn collect_keys(&self) -> Result<Vec<BytesKey>, Error>

Collects all keys from the set into a vector.

Trait Implementations

impl<'a, BS: Debug> Debug for Set<'a, BS>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, BS: BlockStore> PartialEq<Set<'a, BS>> for Set<'a, BS>

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.