FlashLoan2 requires the user to set up transfers to and from the Mango
vault accounts. This version directly provides the loaned funds into a
target token account and repays everything that exceeds the initial
token account balance at the end.
For FlashLoan users had to pass the target cpi programs, accounts and
data to the FlashLoan instruction itself.
The new API allows existing instructions to be used unchanged, they
just need to be bracketed by FlashLoan2Begin and FlashLoan2End.
- don't hard-code the group as the first passed account
- token::approve() banks for each token vault
- sign for each bank
- deal with using tokens without an existing position
- handle deactivation of token account if balance goes to 0
This guarantees stability when a gov proposal adds a new token and a new
market in one transaction. This way the RegisterMarket instruction knows
exactly what index the new token will have.
Previously, the new token index was generated automatically, meaning
you couldn't be sure what index a new token would get in advance.
microwavedcola1
microwavedcola1
Christian Kamm