如何在锚程序中将公钥添加到包含公钥向量的帐户

Question

use anchor_lang::prelude::*;
use rand::Rng;
use solana_program::{declare_id, pubkey::Pubkey};
declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");

#[program]
pub mod raffle_impl {
use super::*;

pub fn create_raffle(ctx: Context<CreateRaffle>, authority: Pubkey) -> ProgramResult{
    let payer = &mut ctx.accounts.wallet;
    let escrow_account = &mut ctx.accounts.escrow_account;
    Ok(())
}

这个 wallet_address_to_add 是一个公钥，将从前端在交易中传递。 它应该被推送到下面定义的帐户宏中定义的向量。

pub fn add_participants(ctx: Context<AddParticipants>, wallet_address_to_add: Pubkey) -> 
ProgramResult{
    let payer = &mut ctx.accounts.wallet;
    let mut data = &mut ctx.accounts.escrow_account.data;
    data = data.push(wallet_address_to_add); // Error occurs here
    Ok(())
}
}
#[derive(Accounts)]
pub struct AddParticipants<'info>{
#[account(mut,signer)]
pub wallet: AccountInfo<'info>,
#[account(mut)]
pub owner: AccountInfo<'info>,
#[account(init_if_needed, payer = wallet, space=8+16)]
pub escrow_account: Account<'info, EscrowAccount>,
pub system_program: Program<'info, System>,
pub rent: Sysvar<'info, Rent>,

#[account]
#[derive(Default)]    
pub struct EscrowAccount{
    pub data: Vec<Pubkey>,
    pub length: usize,
    pub payer: Pubkey,
    pub authority: Pubkey,
}

我不断收到的错误是“预期的可变引用&mut Vec<anchor_lang::prelude::Pubkey> found unit type () 。”

Answer 1

而不是data = data.push(wallet_address_to_add); ，你应该只做data.push(wallet_address_to_add); 没有data =部分。