Struct FilterSet 

pub struct FilterSet<T>
where
    T: Eq + Hash,
{ /* private fields */ }

Available on crate feature rpc only.

A set of values used to filter logs.

Values in the set are ORed. An empty set is a wildcard and matches every value. When used in a Filter, an empty address set is omitted. An empty topic position before a later populated position is serialized as null; trailing empty positions are omitted. The Filter deserializer normalizes null, an empty array, or a topic array containing null to this wildcard representation.

Implementations

impl<T> FilterSet<T>

where T: Eq + Hash,

pub fn is_empty(&self) -> bool

Returns whether the filter is empty

pub fn len(&self) -> usize

Returns the number of values in the filter

pub fn matches(&self, value: &T) -> bool

Returns whether the given value matches the filter. If the filter is empty any value matches. Otherwise, the filter must include the value

pub fn iter(&self) -> Iter<'_, T>

Returns an iterator over the underlying HashSet. Values are visited in an arbitrary order.

pub fn contains(&self, value: &T) -> bool

Check if the filter contains the given value

pub fn insert(&mut self, value: T) -> bool

Insert a value into the filter

pub fn remove(&mut self, value: &T) -> bool

Remove a value from the filter (if present)

impl<T> FilterSet<T>

where T: AsRef<[u8]> + Eq + Hash,

pub fn bloom_filter_ref(&self) -> &BloomFilter

Available on crate feature std only.

Get a reference to the BloomFilter.

pub fn bloom_filter(&self) -> Cow<'_, BloomFilter>

Returns a list of Bloom (BloomFilter) corresponding to the filter’s values

impl<T> FilterSet<T>

where T: Clone + Eq + Hash,

pub fn to_value_or_array(&self) -> Option<ValueOrArray<T>>

Returns a ValueOrArray inside an Option, so that:

• If the filter is empty, it returns None
• If the filter has only 1 value, it returns the single value
• Otherwise it returns an array of values

impl FilterSet<FixedBytes<32>>

pub fn extend<T>(self, value: T) -> FilterSet<FixedBytes<32>>

where T: Into<FilterSet<FixedBytes<32>>>,

Extends the topic with a value that can be converted into a Topic

Trait Implementations

impl<T> Clone for FilterSet<T>

where T: Clone + Eq + Hash,

fn clone(&self) -> FilterSet<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for FilterSet<T>

where T: Debug + Eq + Hash,

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

Formats the value using the given formatter.

impl<T> Default for FilterSet<T>

where T: Eq + Hash,

fn default() -> FilterSet<T>

Returns the “default value” for a type.

impl<'de, T> Deserialize<'de> for FilterSet<T>

where T: Eq + Hash + Deserialize<'de>,

fn deserialize<__D>( __deserializer: __D, ) -> Result<FilterSet<T>, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> Eq for FilterSet<T>

where T: Eq + Hash,

impl From<Address> for FilterSet<FixedBytes<32>>

fn from(address: Address) -> FilterSet<FixedBytes<32>>

Converts to this type from the input type.

impl<T> From<HashSet<T, DefaultHashBuilder>> for FilterSet<T>

where T: Eq + Hash,

fn from(src: HashSet<T, DefaultHashBuilder>) -> FilterSet<T>

Converts to this type from the input type.

impl<T> From<T> for FilterSet<T>

where T: Eq + Hash,

fn from(src: T) -> FilterSet<T>

Converts to this type from the input type.

impl From<Uint<256, 4>> for FilterSet<FixedBytes<32>>

fn from(src: Uint<256, 4>) -> FilterSet<FixedBytes<32>>

Converts to this type from the input type.

impl<T> From<ValueOrArray<Option<T>>> for FilterSet<T>

where T: Eq + Hash,

fn from(src: ValueOrArray<Option<T>>) -> FilterSet<T>

Converts to this type from the input type.

impl<T> From<ValueOrArray<T>> for FilterSet<T>

where T: Eq + Hash,

fn from(src: ValueOrArray<T>) -> FilterSet<T>

Converts to this type from the input type.

impl<T> From<Vec<T>> for FilterSet<T>

where T: Eq + Hash,

fn from(src: Vec<T>) -> FilterSet<T>

Converts to this type from the input type.

impl From<[u8; 32]> for FilterSet<FixedBytes<32>>

fn from(bytes: [u8; 32]) -> FilterSet<FixedBytes<32>>

Converts to this type from the input type.

impl From<bool> for FilterSet<FixedBytes<32>>

fn from(value: bool) -> FilterSet<FixedBytes<32>>

Converts to this type from the input type.

impl<T> FromIterator<T> for FilterSet<T>

where T: Eq + Hash,

fn from_iter<I>(iter: I) -> FilterSet<T>

where I: IntoIterator<Item = T>,

Creates a value from an iterator.

impl<T> IntoIterator for FilterSet<T>

where T: Eq + Hash,

type Item = T

The type of the elements being iterated over.

type IntoIter = IntoIter<T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <FilterSet<T> as IntoIterator>::IntoIter

Creates an iterator from a value.

impl<T> PartialEq for FilterSet<T>

where T: Eq + Hash,

fn eq(&self, other: &FilterSet<T>) -> bool

Equality operator ==.

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

Inequality operator !=.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 72 bytes