feat: optimize WSOL wrap/unwrap with seed account reuse check

- Add account existence check before creating seed account
- Implement wrap_wsol_to_sol_without_create for reusing existing seed accounts
- Prevent transaction failures when temporary seed account already exists
- Improve WSOL conversion efficiency by avoiding redundant account creation
This commit is contained in:
Wood
2025-11-23 20:18:01 +08:00
parent ce83b5ae68
commit 26cee93fb1
2 changed files with 75 additions and 8 deletions
+56 -5
View File
@@ -96,17 +96,22 @@ pub fn wrap_sol_only(payer: &Pubkey, amount_in: u64) -> SmallVec<[Instruction; 2
}
/// 将 WSOL 转换为 SOL,使用 seed 账户
/// 1. 使用 super::seed::create_associated_token_account_use_seed 创建 WSOL seed 账
/// 2. 使用 get_associated_token_address_with_program_id_use_seed 获取该账号的 ATA 地址
/// 3. 添加从用户 WSOL ATA 转账到该 seed ATA 账号的指令
/// 4. 添加关闭 WSOL seed 账号的指令
/// 1. 检查 seed 账户是否已存在
/// 2. 如果不存在,使用 super::seed::create_associated_token_account_use_seed 创建 WSOL seed 账号
/// 3. 使用 get_associated_token_address_with_program_id_use_seed 获取该账号的 ATA 地址
/// 4. 添加从用户 WSOL ATA 转账到该 seed ATA 账号的指令
/// 5. 添加关闭 WSOL seed 账号的指令
///
/// 注意:此函数只生成指令,不检查账户是否存在(需要调用方在发送交易前检查)
/// 如果临时账户已存在,可以安全地跳过创建步骤,直接转账并关闭
pub fn wrap_wsol_to_sol(
payer: &Pubkey,
amount: u64,
) -> Result<Vec<Instruction>, anyhow::Error> {
let mut instructions = Vec::new();
// 1. 创建 WSOL seed 账户
// 1. 创建 WSOL seed 账户(注意:如果账户已存在会失败)
// 调用方应该先检查账户是否存在,如果存在则跳过此步骤
let seed_account_instructions = create_associated_token_account_use_seed(
payer,
payer,
@@ -152,3 +157,49 @@ pub fn wrap_wsol_to_sol(
Ok(instructions)
}
/// 将 WSOL 转换为 SOL(仅转账和关闭,不创建账户)
/// 用于当临时seed账户已存在的情况
pub fn wrap_wsol_to_sol_without_create(
payer: &Pubkey,
amount: u64,
) -> Result<Vec<Instruction>, anyhow::Error> {
let mut instructions = Vec::new();
// 1. 获取 seed 账户的 ATA 地址
let seed_ata_address = get_associated_token_address_with_program_id_use_seed(
payer,
&crate::constants::WSOL_TOKEN_ACCOUNT,
&crate::constants::TOKEN_PROGRAM,
)?;
// 2. 获取用户的 WSOL ATA 地址
let user_wsol_ata = crate::common::fast_fn::get_associated_token_address_with_program_id_fast(
payer,
&crate::constants::WSOL_TOKEN_ACCOUNT,
&crate::constants::TOKEN_PROGRAM,
);
// 3. 添加从用户 WSOL ATA 转账到 seed ATA 的指令
let transfer_instruction = crate::common::spl_token::transfer(
&crate::constants::TOKEN_PROGRAM,
&user_wsol_ata,
&seed_ata_address,
payer,
amount,
&[],
)?;
instructions.push(transfer_instruction);
// 4. 添加关闭 WSOL seed 账户的指令
let close_instruction = close_account(
&crate::constants::TOKEN_PROGRAM,
&seed_ata_address,
payer,
payer,
&[],
)?;
instructions.push(close_instruction);
Ok(instructions)
}