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solana/sdk/src/hashed_transaction.rs

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#![cfg(feature = "full")]
use crate::{hash::Hash, transaction::Transaction};
use std::borrow::Cow;
/// Transaction and the hash of its message
#[derive(Debug, Clone)]
pub struct HashedTransaction<'a> {
transaction: Cow<'a, Transaction>,
pub message_hash: Hash,
}
impl<'a> HashedTransaction<'a> {
pub fn new(transaction: Cow<'a, Transaction>, message_hash: Hash) -> Self {
Self {
transaction,
message_hash,
}
}
pub fn transaction(&self) -> &Transaction {
self.transaction.as_ref()
}
}
impl<'a> From<Transaction> for HashedTransaction<'_> {
fn from(transaction: Transaction) -> Self {
Self {
message_hash: transaction.message().hash(),
transaction: Cow::Owned(transaction),
}
}
}
impl<'a> From<&'a Transaction> for HashedTransaction<'a> {
fn from(transaction: &'a Transaction) -> Self {
Self {
message_hash: transaction.message().hash(),
transaction: Cow::Borrowed(transaction),
}
}
}
pub trait HashedTransactionSlice<'a> {
fn as_transactions_iter(&'a self) -> Box<dyn Iterator<Item = &'a Transaction> + '_>;
}
impl<'a> HashedTransactionSlice<'a> for [HashedTransaction<'a>] {
fn as_transactions_iter(&'a self) -> Box<dyn Iterator<Item = &'a Transaction> + '_> {
Box::new(self.iter().map(|h| h.transaction.as_ref()))
}
}