solana-sdk 0.11.0

Solana SDK
Documentation 
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//! The `loader_transaction` module provides functionality for loading and calling a program

use crate::hash::Hash;
use crate::loader_instruction::LoaderInstruction;
use crate::pubkey::Pubkey;
use crate::signature::Keypair;
use crate::transaction::Transaction;

pub trait LoaderTransaction {
    fn loader_write(
        from_keypair: &Keypair,
        loader: Pubkey,
        offset: u32,
        bytes: Vec<u8>,
        last_id: Hash,
        fee: u64,
    ) -> Self;

    fn loader_finalize(from_keypair: &Keypair, loader: Pubkey, last_id: Hash, fee: u64) -> Self;
}

impl LoaderTransaction for Transaction {
    fn loader_write(
        from_keypair: &Keypair,
        loader: Pubkey,
        offset: u32,
        bytes: Vec<u8>,
        last_id: Hash,
        fee: u64,
    ) -> Self {
        let instruction = LoaderInstruction::Write { offset, bytes };
        Transaction::new(from_keypair, &[], loader, &instruction, last_id, fee)
    }

    fn loader_finalize(from_keypair: &Keypair, loader: Pubkey, last_id: Hash, fee: u64) -> Self {
        let instruction = LoaderInstruction::Finalize;
        Transaction::new(from_keypair, &[], loader, &instruction, last_id, fee)
    }
}