and can only be called once for each voter_authority.
Now that there's a separate "Grant" instruction, there's no longer a
need for CreateVoter to be idempotent and be callable on foreign
accounts.
Calling create voter manually on a PDA account could have allowed
automation.
- Make Registrar zero-copy. While it was using borsh for serialization,
the array of voting mint configs couldn't be serialized without
unaligned references.
- Reorganize all zero_copy fields such that switching to repr(C) would
not make a difference. (just for safety in case that happens)
- Add static asserts on the sizes of all account structs, so any changes
are visible very early.
- Add padding to structs that didn't have it yet.
This avoids a security issue where three separate transactions in the
same slot may update the voter weight record, withdraw funds and then
vote with the stale voter weight record.
Connor O'Hara
Christian Kamm
microwavedcola1