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
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@@ -96,17 +96,22 @@ pub fn wrap_sol_only(payer: &Pubkey, amount_in: u64) -> SmallVec<[Instruction; 2
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}
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/// 将 WSOL 转换为 SOL,使用 seed 账户
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/// 1. 使用 super::seed::create_associated_token_account_use_seed 创建 WSOL seed 账号
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/// 2. 使用 get_associated_token_address_with_program_id_use_seed 获取该账号的 ATA 地址
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/// 3. 添加从用户 WSOL ATA 转账到该 seed ATA 账号的指令
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/// 4. 添加关闭 WSOL seed 账号的指令
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/// 1. 检查 seed 账户是否已存在
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/// 2. 如果不存在,使用 super::seed::create_associated_token_account_use_seed 创建 WSOL seed 账号
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/// 3. 使用 get_associated_token_address_with_program_id_use_seed 获取该账号的 ATA 地址
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/// 4. 添加从用户 WSOL ATA 转账到该 seed ATA 账号的指令
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/// 5. 添加关闭 WSOL seed 账号的指令
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///
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/// 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)
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/// 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
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pub fn wrap_wsol_to_sol(
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payer: &Pubkey,
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amount: u64,
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) -> Result<Vec<Instruction>, anyhow::Error> {
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let mut instructions = Vec::new();
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// 1. 创建 WSOL seed 账户
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// 1. 创建 WSOL seed 账户(注意:如果账户已存在会失败)
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// 调用方应该先检查账户是否存在,如果存在则跳过此步骤
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let seed_account_instructions = create_associated_token_account_use_seed(
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payer,
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payer,
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@@ -152,3 +157,49 @@ pub fn wrap_wsol_to_sol(
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Ok(instructions)
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}
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/// 将 WSOL 转换为 SOL(仅转账和关闭,不创建账户)
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/// 用于当临时seed账户已存在的情况
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pub fn wrap_wsol_to_sol_without_create(
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payer: &Pubkey,
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amount: u64,
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) -> Result<Vec<Instruction>, anyhow::Error> {
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let mut instructions = Vec::new();
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// 1. 获取 seed 账户的 ATA 地址
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let seed_ata_address = get_associated_token_address_with_program_id_use_seed(
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payer,
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&crate::constants::WSOL_TOKEN_ACCOUNT,
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&crate::constants::TOKEN_PROGRAM,
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)?;
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// 2. 获取用户的 WSOL ATA 地址
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let user_wsol_ata = crate::common::fast_fn::get_associated_token_address_with_program_id_fast(
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payer,
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&crate::constants::WSOL_TOKEN_ACCOUNT,
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&crate::constants::TOKEN_PROGRAM,
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);
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// 3. 添加从用户 WSOL ATA 转账到 seed ATA 的指令
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let transfer_instruction = crate::common::spl_token::transfer(
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&crate::constants::TOKEN_PROGRAM,
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&user_wsol_ata,
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&seed_ata_address,
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payer,
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amount,
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&[],
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)?;
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instructions.push(transfer_instruction);
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// 4. 添加关闭 WSOL seed 账户的指令
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let close_instruction = close_account(
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&crate::constants::TOKEN_PROGRAM,
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&seed_ata_address,
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payer,
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payer,
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&[],
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)?;
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instructions.push(close_instruction);
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Ok(instructions)
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}
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