Struct Log

pub struct Log<T = LogData> {
    pub address: Address,
    pub data: T,
}

A log consists of an address, and some log data.

Fields

address: Address

The address which emitted this log.

data: T

The log data.

Implementations

impl Log

pub fn new( address: Address, topics: Vec<FixedBytes<32>>, data: Bytes, ) -> Option<Log>

Creates a new log.

pub const fn new_unchecked( address: Address, topics: Vec<FixedBytes<32>>, data: Bytes, ) -> Log

Creates a new log.

pub const fn empty() -> Log

Creates a new empty log.

impl<T> Log<T>

where &'a T: for<'a> Into<LogData>,

pub const fn new_from_event_unchecked(address: Address, data: T) -> Log<T>

Creates a new log.

pub fn new_from_event(address: Address, data: T) -> Option<Log<T>>

Creates a new log from an deserialized event.

pub fn reserialize(&self) -> Log

Reserialize the data.

Trait Implementations

impl<'arbitrary, T> Arbitrary<'arbitrary> for Log<T>

where T: Arbitrary<'arbitrary>,

fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Log<T>, Error>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Log<T>, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl<T> Arbitrary for Log<T>

where T: Arbitrary,

type Parameters = (<Address as Arbitrary>::Parameters, <T as Arbitrary>::Parameters)

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = Map<(<Address as Arbitrary>::Strategy, <T as Arbitrary>::Strategy), fn(_: (Address, T)) -> Log<T>>

The type of Strategy used to generate values of type Self.

fn arbitrary_with( _top: <Log<T> as Arbitrary>::Parameters, ) -> <Log<T> as Arbitrary>::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl<T> AsMut<Log<T>> for Log<T>

fn as_mut(&mut self) -> &mut Log<T>

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T> AsRef<Log<T>> for Log<T>

fn as_ref(&self) -> &Log<T>

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> AsRef<Log<T>> for Log<T>

fn as_ref(&self) -> &Log<T>

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> Clone for Log<T>

where T: Clone,

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Compact for Log

fn to_compact<B>(&self, buf: &mut B) -> usize

where B: BufMut + AsMut<[u8]>,

Takes a buffer which can be written to. Ideally, it returns the length written to.

fn from_compact(buf: &[u8], _: usize) -> (Log, &[u8])

Takes a buffer which can be read from. Returns the object and buf with its internal cursor advanced (eg..advance(len)).

fn specialized_to_compact<B>(&self, buf: &mut B) -> usize

where B: BufMut + AsMut<[u8]>,

“Optional”: If there’s no good reason to use it, don’t.

fn specialized_from_compact(buf: &[u8], len: usize) -> (Self, &[u8])

“Optional”: If there’s no good reason to use it, don’t.

impl Compress for Log

type Compressed = Vec<u8>

Compressed type.

fn compress_to_buf<B>(self, buf: &mut B)

where B: BufMut + AsMut<[u8]>,

Compresses data to a given buffer.

fn uncompressable_ref(&self) -> Option<&[u8]>

If the type cannot be compressed, return its inner reference as Some(self.as_ref())

fn compress(self) -> Self::Compressed

Compresses data going into the database.

impl<T> Debug for Log<T>

where T: Debug,

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

Formats the value using the given formatter.

impl Decodable for Log

Available on crate feature rlp only.

fn decode(buf: &mut &[u8]) -> Result<Log, Error>

Decodes the blob into the appropriate type. buf must be advanced past the decoded object.

impl Decompress for Log

fn decompress(value: &[u8]) -> Result<Log, DatabaseError>

Decompresses data coming from the database.

fn decompress_owned(value: Vec<u8>) -> Result<Self, DatabaseError>

Decompresses owned data coming from the database.

impl<T> Default for Log<T>

where T: Default,

fn default() -> Log<T>

Returns the “default value” for a type.

impl<T> Deref for Log<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &<Log<T> as Deref>::Target

Dereferences the value.

impl<T> DerefMut for Log<T>

fn deref_mut(&mut self) -> &mut <Log<T> as Deref>::Target

Mutably dereferences the value.

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

where T: Deserialize<'de>,

fn deserialize<D>( deserializer: D, ) -> Result<Log<T>, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Encodable for Log

Available on crate feature rlp only.

fn encode(&self, out: &mut dyn BufMut)

Encodes the type into the out buffer.

fn length(&self) -> usize

Returns the length of the encoding of this type in bytes.

impl<T> Encodable for Log<T>

where &'a T: for<'a> Into<LogData>,

Available on crate feature rlp only.

fn encode(&self, out: &mut dyn BufMut)

Encodes the type into the out buffer.

fn length(&self) -> usize

Returns the length of the encoding of this type in bytes.

impl<'a> Extend<&'a Log> for Bloom

fn extend<T>(&mut self, logs: T)

where T: IntoIterator<Item = &'a Log>,

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one #72631)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one #72631)

Reserves capacity in a collection for the given number of additional elements.

impl<'a> FromIterator<&'a Log> for Bloom

fn from_iter<T>(logs: T) -> Bloom

where T: IntoIterator<Item = &'a Log>,

Creates a value from an iterator.

impl<T> Hash for Log<T>

where T: Hash,

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T> PartialEq for Log<T>

where T: PartialEq,

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> Serialize for Log<T>

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> Eq for Log<T>

where T: Eq,

impl<T> StructuralPartialEq for Log<T>

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.