Enum frame_support::storage::child::StateVersion
source · pub enum StateVersion {
V0,
V1,
}
Expand description
Different possible state version.
V0 and V1 uses a same trie implementation, but V1 will write external value node in the trie for
value with size at least TRIE_VALUE_NODE_THRESHOLD
.
Variants§
Implementations§
source§impl StateVersion
impl StateVersion
sourcepub fn state_value_threshold(&self) -> Option<u32>
pub fn state_value_threshold(&self) -> Option<u32>
If defined, values in state of size bigger or equal to this threshold will use a separate trie node. Otherwhise, value will be inlined in branch or leaf node.
Trait Implementations§
source§impl Clone for StateVersion
impl Clone for StateVersion
source§fn clone(&self) -> StateVersion
fn clone(&self) -> StateVersion
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for StateVersion
impl Debug for StateVersion
source§impl Decode for StateVersion
impl Decode for StateVersion
source§fn decode<__CodecInputEdqy>(
__codec_input_edqy: &mut __CodecInputEdqy
) -> Result<StateVersion, Error>where
__CodecInputEdqy: Input,
fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<StateVersion, Error>where __CodecInputEdqy: Input,
Attempt to deserialise the value from input.
source§impl Default for StateVersion
impl Default for StateVersion
source§fn default() -> StateVersion
fn default() -> StateVersion
Returns the “default value” for a type. Read more
source§impl Display for StateVersion
impl Display for StateVersion
source§impl Encode for StateVersion
impl Encode for StateVersion
source§fn encode_to<__CodecOutputEdqy>(
&self,
__codec_dest_edqy: &mut __CodecOutputEdqy
)where
__CodecOutputEdqy: Output + ?Sized,
fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy )where __CodecOutputEdqy: Output + ?Sized,
Convert self to a slice and append it to the destination.
source§fn size_hint(&self) -> usize
fn size_hint(&self) -> usize
If possible give a hint of expected size of the encoding. Read more
source§fn using_encoded<R, F>(&self, f: F) -> Rwhere
F: FnOnce(&[u8]) -> R,
fn using_encoded<R, F>(&self, f: F) -> Rwhere F: FnOnce(&[u8]) -> R,
Convert self to a slice and then invoke the given closure with it.
source§fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
Calculates the encoded size. Read more
source§impl PartialEq<StateVersion> for StateVersion
impl PartialEq<StateVersion> for StateVersion
source§fn eq(&self, other: &StateVersion) -> bool
fn eq(&self, other: &StateVersion) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl PassBy for StateVersion
impl PassBy for StateVersion
§type PassBy = Enum<StateVersion>
type PassBy = Enum<StateVersion>
The strategy that should be used to pass the type.
source§impl TryFrom<u8> for StateVersion
impl TryFrom<u8> for StateVersion
impl Copy for StateVersion
impl EncodeLike<StateVersion> for StateVersion
impl Eq for StateVersion
impl StructuralEq for StateVersion
impl StructuralPartialEq for StateVersion
Auto Trait Implementations§
impl RefUnwindSafe for StateVersion
impl Send for StateVersion
impl Sync for StateVersion
impl Unpin for StateVersion
impl UnwindSafe for StateVersion
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T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
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