Struct NeoStorage 

pub struct NeoStorage;

Storage convenience helpers built on top of the syscall layer.

Implementations

impl NeoStorage

pub fn get_context() -> Result<NeoStorageContext, NeoError>

pub fn get_read_only_context() -> Result<NeoStorageContext, NeoError>

pub fn as_read_only( context: &NeoStorageContext, ) -> Result<NeoStorageContext, NeoError>

pub fn get( context: &NeoStorageContext, key: &NeoByteString, ) -> Result<NeoByteString, NeoError>

Read a stored value.

Ambiguity warning (D8): this returns an empty NeoByteString both when the key is absent AND when the stored value is genuinely empty, so the two cases are indistinguishable. For existence-sensitive reads, prefer NeoVMSyscall::storage_try_get (returns Option) or RawStorage::get_into (returns RawStorageGet::Missing).

pub fn put( context: &NeoStorageContext, key: &NeoByteString, value: &NeoByteString, ) -> Result<(), NeoError>

pub fn delete( context: &NeoStorageContext, key: &NeoByteString, ) -> Result<(), NeoError>

pub fn find( context: &NeoStorageContext, prefix: &NeoByteString, ) -> Result<NeoIterator<NeoValue>, NeoError>