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feat: add Meteora DAMM V2 support and bump to v3.0.1

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Add Meteora DAMM V2 trading protocol with instruction builder, type definitions, and fixed_output_token_amount parameter for precise output control. Update all examples and documentation.
This commit is contained in:
ysq
2025-10-05 22:27:04 +08:00
parent 30a7d570fa
commit 2f5a63ed55
33 changed files with 719 additions and 59 deletions
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src/instruction/pumpfun.rs
+21 -13
View File
@@ -1,8 +1,10 @@
use crate::{
common::spl_token::close_account, constants::trade::trade::DEFAULT_SLIPPAGE, trading::core::{
common::spl_token::close_account,
constants::trade::trade::DEFAULT_SLIPPAGE,
trading::core::{
params::{PumpFunParams, SwapParams},
traits::InstructionBuilder,
}
},
};
use crate::{
instruction::utils::pumpfun::{
@@ -44,13 +46,16 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
// ========================================
// Trade calculation and account address preparation
// ========================================
let buy_token_amount = get_buy_token_amount_from_sol_amount(
bonding_curve.virtual_token_reserves as u128,
bonding_curve.virtual_sol_reserves as u128,
bonding_curve.real_token_reserves as u128,
creator,
params.input_amount.unwrap_or(0),
);
let buy_token_amount = match params.fixed_output_amount {
Some(amount) => amount,
None => get_buy_token_amount_from_sol_amount(
bonding_curve.virtual_token_reserves as u128,
bonding_curve.virtual_sol_reserves as u128,
bonding_curve.real_token_reserves as u128,
creator,
params.input_amount.unwrap_or(0),
),
};
let max_sol_cost = calculate_with_slippage_buy(
params.input_amount.unwrap_or(0),
@@ -169,10 +174,13 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
token_amount,
);
let min_sol_output = calculate_with_slippage_sell(
sol_amount,
params.slippage_basis_points.unwrap_or(DEFAULT_SLIPPAGE),
);
let min_sol_output = match params.fixed_output_amount {
Some(fixed) => fixed,
None => calculate_with_slippage_sell(
sol_amount,
params.slippage_basis_points.unwrap_or(DEFAULT_SLIPPAGE),
),
};
let bonding_curve_addr = if bonding_curve.account == Pubkey::default() {
get_bonding_curve_pda(&params.input_mint).unwrap()