38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
//! Methods for working with `Feature` accounts.
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use crate::account::{AccountSharedData, ReadableAccount, WritableAccount};
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pub use solana_program::feature::*;
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pub fn from_account<T: ReadableAccount>(account: &T) -> Option<Feature> {
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if account.owner() != &id() {
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None
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} else {
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bincode::deserialize(account.data()).ok()
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}
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}
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pub fn to_account(feature: &Feature, account: &mut AccountSharedData) -> Option<()> {
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bincode::serialize_into(account.data_as_mut_slice(), feature).ok()
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}
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pub fn create_account(feature: &Feature, lamports: u64) -> AccountSharedData {
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let data_len = Feature::size_of().max(bincode::serialized_size(feature).unwrap() as usize);
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let mut account = AccountSharedData::new(lamports, data_len, &id());
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to_account(feature, &mut account).unwrap();
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account
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn feature_deserialize_none() {
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let just_initialized = AccountSharedData::new(42, Feature::size_of(), &id());
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assert_eq!(
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from_account(&just_initialized),
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Some(Feature { activated_at: None })
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);
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}
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}
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