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add check for locked zero on locked value in pallet-xcm #7220

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add check for locked zero on locked value in pallet-xcm #7220

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ab6ca0b
add check for balance zero on locked value
vstam1 May 12, 2023
5b88a0a
add comments and fmt
vstam1 May 12, 2023
d5cfafc
move let
vstam1 May 12, 2023
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12 changes: 10 additions & 2 deletions xcm/pallet-xcm/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1691,8 +1691,16 @@ impl<T: Config> xcm_executor::traits::Enact for UnlockTicket<T> {
locks.swap_remove(remove_index);
}
LockedFungibles::<T>::insert(&self.sovereign_account, locks);
let reasons = WithdrawReasons::all();
T::Currency::set_lock(*b"py/xcmlk", &self.sovereign_account, locked, reasons);

// A locked value of zero means we do not have any outstanding locks anymore
// in the LockedFungibles storage for this sovereign account.
// We can then remove the `xcmlk` lock from this account.
if locked.is_zero() {
T::Currency::remove_lock(*b"py/xcmlk", &self.sovereign_account);
} else {
let reasons = WithdrawReasons::all();
T::Currency::set_lock(*b"py/xcmlk", &self.sovereign_account, locked, reasons);
}
Ok(())
}
}
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