refactor: optimize instruction builders structure and improve code documentation

- Add structured comment sections with clear code organization
- Improve variable naming and account address calculation logic
- Update comments for better readability across all trading protocols
- Enhance code structure for PumpFun, PumpSwap, and Raydium protocols
This commit is contained in:
ysq
2025-09-09 00:50:24 +08:00
parent ccf6330260
commit b9fa2f2f0f
16 changed files with 333 additions and 307 deletions
+47 -55
View File
@@ -28,6 +28,9 @@ pub struct BonkInstructionBuilder;
#[async_trait::async_trait]
impl InstructionBuilder for BonkInstructionBuilder {
async fn build_buy_instructions(&self, params: &BuyParams) -> Result<Vec<Instruction>> {
// ========================================
// Parameter validation and basic data preparation
// ========================================
if params.sol_amount == 0 {
return Err(anyhow!("Amount cannot be zero"));
}
@@ -43,7 +46,20 @@ impl InstructionBuilder for BonkInstructionBuilder {
protocol_params.pool_state
};
// Create user token accounts
// ========================================
// Trade calculation and account address preparation
// ========================================
let amount_in: u64 = params.sol_amount;
let share_fee_rate: u64 = 0;
let minimum_amount_out: u64 = get_buy_token_amount_from_sol_amount(
amount_in,
protocol_params.virtual_base,
protocol_params.virtual_quote,
protocol_params.real_base,
protocol_params.real_quote,
params.slippage_basis_points.unwrap_or(DEFAULT_SLIPPAGE) as u128,
);
let user_base_token_account =
crate::common::fast_fn::get_associated_token_address_with_program_id_fast(
&params.payer.pubkey(),
@@ -57,7 +73,6 @@ impl InstructionBuilder for BonkInstructionBuilder {
&crate::constants::TOKEN_PROGRAM,
);
// Get pool token accounts
let base_vault_account = if protocol_params.base_vault == Pubkey::default() {
get_vault_pda(&pool_state, &params.mint).unwrap()
} else {
@@ -69,22 +84,9 @@ impl InstructionBuilder for BonkInstructionBuilder {
protocol_params.quote_vault
};
let virtual_base = protocol_params.virtual_base;
let virtual_quote = protocol_params.virtual_quote;
let real_base = protocol_params.real_base;
let real_quote = protocol_params.real_quote;
let amount_in: u64 = params.sol_amount;
let share_fee_rate: u64 = 0;
let minimum_amount_out: u64 = get_buy_token_amount_from_sol_amount(
amount_in,
virtual_base,
virtual_quote,
real_base,
real_quote,
params.slippage_basis_points.unwrap_or(DEFAULT_SLIPPAGE) as u128,
);
// ========================================
// Build instructions
// ========================================
let mut instructions = Vec::with_capacity(6);
if protocol_params.auto_handle_wsol {
@@ -92,7 +94,6 @@ impl InstructionBuilder for BonkInstructionBuilder {
.extend(crate::trading::common::handle_wsol(&params.payer.pubkey(), amount_in));
}
// Create user's base token account
instructions.push(crate::common::fast_fn::create_associated_token_account_idempotent_fast(
&params.payer.pubkey(),
&params.payer.pubkey(),
@@ -100,7 +101,12 @@ impl InstructionBuilder for BonkInstructionBuilder {
&protocol_params.mint_token_program,
));
// Create buy instruction
let mut data = [0u8; 32];
data[..8].copy_from_slice(&BUY_EXECT_IN_DISCRIMINATOR);
data[8..16].copy_from_slice(&amount_in.to_le_bytes());
data[16..24].copy_from_slice(&minimum_amount_out.to_le_bytes());
data[24..32].copy_from_slice(&share_fee_rate.to_le_bytes());
let accounts: [AccountMeta; 18] = [
AccountMeta::new(params.payer.pubkey(), true), // Payer (signer)
accounts::AUTHORITY_META, // Authority (readonly)
@@ -121,17 +127,10 @@ impl InstructionBuilder for BonkInstructionBuilder {
AccountMeta::new(protocol_params.platform_associated_account, false), // Platform Associated Account
AccountMeta::new(protocol_params.creator_associated_account, false), // Creator Associated Account
];
// Create instruction data
let mut data = [0u8; 32];
data[..8].copy_from_slice(&BUY_EXECT_IN_DISCRIMINATOR);
data[8..16].copy_from_slice(&amount_in.to_le_bytes());
data[16..24].copy_from_slice(&minimum_amount_out.to_le_bytes());
data[24..32].copy_from_slice(&share_fee_rate.to_le_bytes());
instructions.push(Instruction::new_with_bytes(accounts::BONK, &data, accounts.to_vec()));
if protocol_params.auto_handle_wsol {
// Close wSOL ATA account, reclaim rent
instructions.push(crate::trading::common::close_wsol(&params.payer.pubkey()));
}
@@ -139,6 +138,9 @@ impl InstructionBuilder for BonkInstructionBuilder {
}
async fn build_sell_instructions(&self, params: &SellParams) -> Result<Vec<Instruction>> {
// ========================================
// Parameter validation and basic data preparation
// ========================================
if params.rpc.is_none() {
return Err(anyhow!("RPC is not set"));
}
@@ -151,7 +153,6 @@ impl InstructionBuilder for BonkInstructionBuilder {
let rpc = params.rpc.as_ref().unwrap().clone();
// Get token balance
let mut amount = params.token_amount;
if params.token_amount.is_none() || params.token_amount.unwrap_or(0) == 0 {
let balance_u64 =
@@ -170,22 +171,19 @@ impl InstructionBuilder for BonkInstructionBuilder {
protocol_params.pool_state
};
let virtual_base = protocol_params.virtual_base;
let virtual_quote = protocol_params.virtual_quote;
let real_base = protocol_params.real_base;
let real_quote = protocol_params.real_quote;
// Calculate expected SOL amount
// ========================================
// Trade calculation and account address preparation
// ========================================
let share_fee_rate: u64 = 0;
let minimum_amount_out: u64 = get_sell_sol_amount_from_token_amount(
amount,
virtual_base,
virtual_quote,
real_base,
real_quote,
protocol_params.virtual_base,
protocol_params.virtual_quote,
protocol_params.real_base,
protocol_params.real_quote,
params.slippage_basis_points.unwrap_or(DEFAULT_SLIPPAGE) as u128,
);
// Create user token accounts
let user_base_token_account =
crate::common::fast_fn::get_associated_token_address_with_program_id_fast(
&params.payer.pubkey(),
@@ -199,7 +197,6 @@ impl InstructionBuilder for BonkInstructionBuilder {
&crate::constants::TOKEN_PROGRAM,
);
// Get pool token accounts
let base_vault_account = if protocol_params.base_vault == Pubkey::default() {
get_vault_pda(&pool_state, &params.mint).unwrap()
} else {
@@ -211,17 +208,19 @@ impl InstructionBuilder for BonkInstructionBuilder {
protocol_params.quote_vault
};
let share_fee_rate: u64 = 0;
// ========================================
// Build instructions
// ========================================
let mut instructions = Vec::with_capacity(3);
// Handle wSOL
instructions.push(
// Create wSOL ATA account if it doesn't exist
crate::trading::common::create_wsol_ata(&params.payer.pubkey()),
);
instructions.push(crate::trading::common::create_wsol_ata(&params.payer.pubkey()));
let mut data = [0u8; 32];
data[..8].copy_from_slice(&SELL_EXECT_IN_DISCRIMINATOR);
data[8..16].copy_from_slice(&amount.to_le_bytes());
data[16..24].copy_from_slice(&minimum_amount_out.to_le_bytes());
data[24..32].copy_from_slice(&share_fee_rate.to_le_bytes());
// Create sell instruction
let accounts: [AccountMeta; 18] = [
AccountMeta::new(params.payer.pubkey(), true), // Payer (signer)
accounts::AUTHORITY_META, // Authority (readonly)
@@ -243,13 +242,6 @@ impl InstructionBuilder for BonkInstructionBuilder {
AccountMeta::new(protocol_params.creator_associated_account, false), // Creator Associated Account
];
// Create instruction data
let mut data = [0u8; 32];
data[..8].copy_from_slice(&SELL_EXECT_IN_DISCRIMINATOR);
data[8..16].copy_from_slice(&amount.to_le_bytes());
data[16..24].copy_from_slice(&minimum_amount_out.to_le_bytes());
data[24..32].copy_from_slice(&share_fee_rate.to_le_bytes());
instructions.push(Instruction::new_with_bytes(accounts::BONK, &data, accounts.to_vec()));
if protocol_params.auto_handle_wsol {