97ba3cbeb0
* Cleanup unsupported sysvars (#16390)
* Cleanup unsupported sysvars
* fix ser description
(cherry picked from commit 92f4018b07)
# Conflicts:
# runtime/src/bank.rs
* fix conflicts
Co-authored-by: Jack May <jack@solana.com>
41 lines
1.2 KiB
Rust
41 lines
1.2 KiB
Rust
//! named accounts for synthesized data accounts for bank state, etc.
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//!
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//! this account carries the Bank's most recent bank hashes for some N parents
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//!
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pub use crate::slot_hashes::SlotHashes;
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use crate::{account_info::AccountInfo, program_error::ProgramError, sysvar::Sysvar};
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crate::declare_sysvar_id!("SysvarS1otHashes111111111111111111111111111", SlotHashes);
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impl Sysvar for SlotHashes {
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// override
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fn size_of() -> usize {
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// hard-coded so that we don't have to construct an empty
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20_488 // golden, update if MAX_ENTRIES changes
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}
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fn from_account_info(_account_info: &AccountInfo) -> Result<Self, ProgramError> {
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// This sysvar is too large to bincode::deserialize in-program
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Err(ProgramError::UnsupportedSysvar)
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::{clock::Slot, hash::Hash, slot_hashes::MAX_ENTRIES};
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#[test]
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fn test_size_of() {
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assert_eq!(
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SlotHashes::size_of(),
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bincode::serialized_size(
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&(0..MAX_ENTRIES)
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.map(|slot| (slot as Slot, Hash::default()))
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.collect::<SlotHashes>()
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)
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.unwrap() as usize
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);
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}
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}
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