Struct NeoStorage 

pub struct NeoStorage;

Storage convenience helpers built on top of the syscall layer.

Implementations

impl NeoStorage

pub fn get_context() -> NeoResult<NeoStorageContext>

pub fn get_read_only_context() -> NeoResult<NeoStorageContext>

pub fn as_read_only(context: &NeoStorageContext) -> NeoResult<NeoStorageContext>

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

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, ) -> NeoResult<()>

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

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