Struct Approval

pub struct Approval {
    pub owner: Address,
    pub spender: Address,
    pub value: U256,
}

@dev Emitted when the allowance of a spender for an owner is set by a call to {approve}. value is the new allowance. Event with signature Approval(address,address,uint256) and selector 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925.

event Approval(address indexed owner, address indexed spender, uint256 value);

Fields

owner: Address

spender: Address

value: U256

Trait Implementations

impl Clone for Approval

fn clone(&self) -> Approval

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<&Approval> for LogData

fn from(this: &Approval) -> LogData

Converts to this type from the input type.

impl IntoLogData for Approval

fn to_log_data(&self) -> LogData

Convert into a [LogData] object.

fn into_log_data(self) -> LogData

Consume and convert into a [LogData] object.

impl SolEvent for Approval

const SIGNATURE: &'static str = "Approval(address,address,uint256)"

The event’s ABI signature.

const SIGNATURE_HASH: B256 = _

The event’s ABI signature hash, or selector: keccak256(SIGNATURE)

const ANONYMOUS: bool = false

Whether the event is anonymous.

type DataTuple<'a> = (Uint<256>,)

The underlying tuple type which represents this event’s non-indexed parameters. These parameters are ABI encoded and included in the log body.

type DataToken<'a> = <<Approval as SolEvent>::DataTuple<'a> as SolType>::Token<'a>

The [TokenSeq] type corresponding to the tuple.

type TopicList = (FixedBytes<32>, Address, Address)

The underlying tuple type which represents this event’s topics.

fn new( topics: <Self::TopicList as SolType>::RustType, data: <Self::DataTuple<'_> as SolType>::RustType, ) -> Self

Convert decoded rust data to the event type.

fn check_signature( topics: &<Self::TopicList as SolType>::RustType, ) -> Result<()>

Check that the event’s signature matches the given topics.

fn tokenize_body(&self) -> Self::DataToken<'_>

Tokenize the event’s non-indexed parameters.

fn topics(&self) -> <Self::TopicList as SolType>::RustType

The event’s topics.

fn encode_topics_raw(&self, out: &mut [WordToken]) -> Result<()>

Encode the topics of this event into the given buffer.

fn new_checked( topics: <Self::TopicList as SolType>::RustType, data: <Self::DataTuple<'_> as SolType>::RustType, ) -> Result<Self, Error>

Convert decoded rust data to the event type.

fn abi_encoded_size(&self) -> usize

The size of the ABI-encoded dynamic data in bytes.

fn encode_data_to(&self, out: &mut Vec<u8>)

ABI-encode the dynamic data of this event into the given buffer.

fn encode_data(&self) -> Vec<u8>

ABI-encode the dynamic data of this event.

fn encode_topics(&self) -> Vec<WordToken>

Encode the topics of this event.

fn encode_topics_array<const LEN: usize>(&self) -> [WordToken; LEN]

Encode the topics of this event into a fixed-size array.

fn encode_log_data(&self) -> LogData

Encode this event to a [LogData].

fn encode_log(log: &Log<Self>) -> Log

Transform ca [Log] containing this event into a [Log] containing [LogData].

fn decode_topics<I, D>( topics: I, ) -> Result<<Self::TopicList as SolType>::RustType, Error>

where I: IntoIterator<Item = D>, D: Into<WordToken>,

Decode the topics of this event from the given data.

fn abi_decode_data<'a>( data: &'a [u8], ) -> Result<<Self::DataTuple<'a> as SolType>::RustType, Error>

ABI-decodes the dynamic data of this event from the given buffer.

fn abi_decode_data_validate<'a>( data: &'a [u8], ) -> Result<<Self::DataTuple<'a> as SolType>::RustType, Error>

ABI-decodes the dynamic data of this event from the given buffer, with validation.

fn decode_raw_log<I, D>(topics: I, data: &[u8]) -> Result<Self, Error>

where I: IntoIterator<Item = D>, D: Into<WordToken>,

Decode the event from the given log info.

fn decode_raw_log_validate<I, D>(topics: I, data: &[u8]) -> Result<Self, Error>

where I: IntoIterator<Item = D>, D: Into<WordToken>,

Decode the event from the given log info, with validation.

fn decode_log_data(log: &LogData) -> Result<Self, Error>

Decode the event from the given log object.

fn decode_log(log: &Log) -> Result<Log<Self>, Error>

Decode the event from the given log object.