Struct Promise 

pub struct Promise {
    pub tx_hash: HashOf<InjectedTransaction>,
    pub reply: ReplyInfo,
}

Promise represents the guaranteed reply for InjectedTransaction.

Note: Validator must ensure the validity of the promise, because of it can be slashed for providing an invalid promise.

Fields

tx_hash: HashOf<InjectedTransaction>

Hash of the injected transaction this reply corresponds to.

reply: ReplyInfo

Reply data for injected message.

Implementations

impl Promise

pub fn reply_hash(&self) -> HashOf<ReplyInfo>

Calculates the blake2b hash from promise’s reply.

pub fn to_compact(&self) -> CompactPromise

Converts promise to its compact version.

Trait Implementations

impl Clone for Promise

fn clone(&self) -> Promise

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Promise

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

Formats the value using the given formatter.

impl Decode for Promise

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<'de> Deserialize<'de> for Promise

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Encode for Promise

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

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

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl EncodeLike for Promise

impl Eq for Promise

impl Hash for Promise

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

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 PartialEq for Promise

fn eq(&self, other: &Promise) -> 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 PromiseKind for Promise

fn tx_hash(&self) -> HashOf<InjectedTransaction>

impl Serialize for Promise

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Promise

impl ToDigest for Promise

fn update_hasher(&self, hasher: &mut Keccak256)

fn to_digest(&self) -> Digest