sol-trade-sdk 4.0.6

Rust SDK to interact with the dex trade Solana program.
Documentation 
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//! Pump.fun 曲线 `buy` / `buy_exact_sol_in` / `sell` 的 **instruction data** 栈上编码（热路径零堆分配）。
//!
//! 与 `@pump-fun/pump-sdk` Anchor `coder.instruction.encode` 对齐：`OptionBool` 在 ix 参数中为 **1 字节**。

use crate::instruction::utils::pumpfun::{
    BUY_DISCRIMINATOR, BUY_EXACT_SOL_IN_DISCRIMINATOR, SELL_DISCRIMINATOR,
};

/// 与官方 `getBuyInstructionInternal` 一致：`track_volume = true`。
pub const TRACK_VOLUME_TRUE: u8 = 1;

#[inline(always)]
pub fn encode_pumpfun_buy_ix_data(
    token_amount: u64,
    max_sol_cost: u64,
    track_volume: u8,
) -> [u8; 25] {
    let mut d = [0u8; 25];
    d[..8].copy_from_slice(&BUY_DISCRIMINATOR);
    d[8..16].copy_from_slice(&token_amount.to_le_bytes());
    d[16..24].copy_from_slice(&max_sol_cost.to_le_bytes());
    d[24] = track_volume;
    d
}

#[inline(always)]
pub fn encode_pumpfun_buy_exact_sol_in_ix_data(
    spendable_sol_in: u64,
    min_tokens_out: u64,
    track_volume: u8,
) -> [u8; 25] {
    let mut d = [0u8; 25];
    d[..8].copy_from_slice(&BUY_EXACT_SOL_IN_DISCRIMINATOR);
    d[8..16].copy_from_slice(&spendable_sol_in.to_le_bytes());
    d[16..24].copy_from_slice(&min_tokens_out.to_le_bytes());
    d[24] = track_volume;
    d
}

#[inline(always)]
pub fn encode_pumpfun_sell_ix_data(token_amount: u64, min_sol_output: u64) -> [u8; 24] {
    let mut d = [0u8; 24];
    d[..8].copy_from_slice(&SELL_DISCRIMINATOR);
    d[8..16].copy_from_slice(&token_amount.to_le_bytes());
    d[16..24].copy_from_slice(&min_sol_output.to_le_bytes());
    d
}