DigestItem should be type mapping #62
Description
in subatrate:
pub enum DigestItem {
/// A pre-runtime digest.
///
/// These are messages from the consensus engine to the runtime, although
/// the consensus engine can (and should) read them itself to avoid
/// code and state duplication. It is erroneous for a runtime to produce
/// these, but this is not (yet) checked.
///
/// NOTE: the runtime is not allowed to panic or fail in an `on_initialize`
/// call if an expected `PreRuntime` digest is not present. It is the
/// responsibility of a external block verifier to check this. Runtime API calls
/// will initialize the block without pre-runtime digests, so initialization
/// cannot fail when they are missing.
PreRuntime(ConsensusEngineId, Vec<u8>),
/// A message from the runtime to the consensus engine. This should *never*
/// be generated by the native code of any consensus engine, but this is not
/// checked (yet).
Consensus(ConsensusEngineId, Vec<u8>),
/// Put a Seal on it. This is only used by native code, and is never seen
/// by runtimes.
Seal(ConsensusEngineId, Vec<u8>),
/// Some other thing. Unsupported and experimental.
Other(Vec<u8>),
/// An indication for the light clients that the runtime execution
/// environment is updated.
///
/// Currently this is triggered when:
/// 1. Runtime code blob is changed or
/// 2. `heap_pages` value is changed.
RuntimeEnvironmentUpdated,
}
but in the py-scale-codec:
class LogDigest(Enum):
value_list = ['Other', 'AuthoritiesChange', 'ChangesTrieRoot', 'SealV0', 'Consensus', 'Seal', 'PreRuntime']
def __init__(self, data, **kwargs):
self.log_type = None
self.index_value = None
super().__init__(data, **kwargs)
def process(self):
self.index = int(self.get_next_bytes(1).hex())
self.index_value = self.value_list[self.index]
self.log_type = self.process_type(self.value_list[self.index])
return {'type': self.value_list[self.index], 'value': self.log_type.value}