Struct Read 

pub struct Read<T> {
    pub call: CallRequest,
    /* private fields */
}

A typed read: the call that makes it, and how its answer reads.

Fields

call: CallRequest

Implementations

impl<T> Read<T>

pub fn new( at: Address, method: &Method, args: &[Arg<'_>], decode: fn(&[u8]) -> Result<T, AbiError>, ) -> Read<T>

method called on at with args, its answer read by decode.

pub fn from(self, from: Address) -> Read<T>

The same read as sent by from: what msg.sender is to the contract.

pub fn with_value(self, value: U256) -> Read<T>

The same read carrying value wei.

pub fn decode(&self, answer: &[u8]) -> Result<T, AbiError>

The answer’s bytes, read against what the contract declares.

pub async fn on<H: Http>( &self, rpc: &Rpc<H>, block: BlockTag, ) -> Result<T, ReadError>

Sends it to rpc at block and reads the answer.

Trait Implementations

impl<T: Clone> Clone for Read<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Read<T>

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

Formats the value using the given formatter.