pub trait SpreadLayout {
// Required methods
fn read_ledger(key: &[u8], prefix: &[u8]) -> Self;
fn write_ledger(&self, key: &[u8], prefix: &[u8]);
}Expand description
Types that can be stored to and loaded from the contract storage. 合约中的每一个属性都会生成下面的接口，有了这个接口，各个属性便可以单独序列化到db中
Required Methods§
Sourcefn read_ledger(key: &[u8], prefix: &[u8]) -> Self
fn read_ledger(key: &[u8], prefix: &[u8]) -> Self
从账本读数据接口
Sourcefn write_ledger(&self, key: &[u8], prefix: &[u8])
fn write_ledger(&self, key: &[u8], prefix: &[u8])
写入账本数据接口，key为属性名
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.