104 lines
3.5 KiB
Rust
104 lines
3.5 KiB
Rust
use crate::error::*;
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use crate::state::*;
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use anchor_lang::prelude::*;
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use anchor_lang::solana_program::sysvar::instructions as tx_instructions;
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use anchor_spl::{associated_token::AssociatedToken, token::Token};
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pub mod jupiter_mainnet_6 {
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use solana_program::declare_id;
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declare_id!("JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4");
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}
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pub mod jupiter_mainnet_4 {
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use solana_program::declare_id;
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declare_id!("JUP4Fb2cqiRUcaTHdrPC8h2gNsA2ETXiPDD33WcGuJB");
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}
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pub mod jupiter_mainnet_3 {
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use solana_program::declare_id;
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declare_id!("JUP3c2Uh3WA4Ng34tw6kPd2G4C5BB21Xo36Je1s32Ph");
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}
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/// Sets up mango vaults for flash loan
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///
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/// In addition to these accounts, there must be remaining_accounts:
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/// 1. N banks (writable)
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/// 2. N vaults (writable), matching the banks
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/// 3. N token accounts (writable), in the same order as the vaults,
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/// the loaned funds are transfered into these
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/// 4. the mango group
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#[derive(Accounts)]
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pub struct FlashLoanBegin<'info> {
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#[account(
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constraint = account.load()?.is_operational() @ MangoError::AccountIsFrozen
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)]
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pub account: AccountLoader<'info, MangoAccountFixed>,
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// owner is checked at #1
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pub owner: Signer<'info>,
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pub token_program: Program<'info, Token>,
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/// Instructions Sysvar for instruction introspection
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/// CHECK: fixed instructions sysvar account
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#[account(address = tx_instructions::ID)]
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pub instructions: UncheckedAccount<'info>,
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}
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#[derive(Accounts)]
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pub struct FlashLoanSwapBegin<'info> {
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#[account(
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constraint = account.load()?.is_operational() @ MangoError::AccountIsFrozen
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)]
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pub account: AccountLoader<'info, MangoAccountFixed>,
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// owner is checked at #1
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#[account(mut)]
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pub owner: Signer<'info>,
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/// CHECK: bank/vault/token account in remaining accounts match against this
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pub input_mint: UncheckedAccount<'info>,
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/// CHECK: bank/vault/token account in remaining accounts match against this
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pub output_mint: UncheckedAccount<'info>,
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pub system_program: Program<'info, System>,
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pub token_program: Program<'info, Token>,
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pub associated_token_program: Program<'info, AssociatedToken>,
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/// Instructions Sysvar for instruction introspection
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/// CHECK: fixed instructions sysvar account
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#[account(address = tx_instructions::ID)]
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pub instructions: UncheckedAccount<'info>,
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}
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/// Finalizes a flash loan
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///
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/// In addition to these accounts, there must be remaining_accounts:
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/// 1. health accounts, and every bank that also appeared in FlashLoanBegin must be writable
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/// 2. N vaults (writable), matching what was in FlashLoanBegin
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/// 3. N token accounts (writable), matching what was in FlashLoanBegin;
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/// the `owner` must have authority to transfer tokens out of them
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/// 4. the mango group
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#[derive(Accounts)]
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pub struct FlashLoanEnd<'info> {
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#[account(
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mut,
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constraint = account.load()?.is_operational() @ MangoError::AccountIsFrozen
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)]
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pub account: AccountLoader<'info, MangoAccountFixed>,
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// owner is checked at #1
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pub owner: Signer<'info>,
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pub token_program: Program<'info, Token>,
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}
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#[derive(PartialEq, Copy, Clone, Debug, AnchorSerialize, AnchorDeserialize)]
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#[repr(u8)]
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pub enum FlashLoanType {
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/// An arbitrary flash loan
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Unknown,
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/// A flash loan used for a swap where one token is exchanged for another.
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///
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/// Deposits in this type get charged the flash_loan_swap_fee_rate
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Swap,
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/// Like Swap, but without the flash_loan_swap_fee_rate
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SwapWithoutFee,
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}
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