Enum frame_support::storage::child::ChildInfo
source · pub enum ChildInfo {
ParentKeyId(ChildTrieParentKeyId),
}
Expand description
Information related to a child state.
Variants
ParentKeyId(ChildTrieParentKeyId)
This is the one used by default.
Implementations
sourceimpl ChildInfo
impl ChildInfo
sourcepub fn new_default(storage_key: &[u8]) -> ChildInfo
pub fn new_default(storage_key: &[u8]) -> ChildInfo
Instantiates child information for a default child trie
of kind ChildType::ParentKeyId
, using an unprefixed parent
storage key.
sourcepub fn new_default_from_vec(storage_key: Vec<u8, Global>) -> ChildInfo
pub fn new_default_from_vec(storage_key: Vec<u8, Global>) -> ChildInfo
Same as new_default
but with Vec<u8>
as input.
sourcepub fn try_update(&mut self, other: &ChildInfo) -> bool
pub fn try_update(&mut self, other: &ChildInfo) -> bool
Try to update with another instance, return false if both instance are not compatible.
sourcepub fn keyspace(&self) -> &[u8] ⓘ
pub fn keyspace(&self) -> &[u8] ⓘ
Returns byte sequence (keyspace) that can be use by underlying db to isolate keys.
This is a unique id of the child trie. The collision resistance of this value
depends on the type of child info use. For ChildInfo::Default
it is and need to be.
sourcepub fn storage_key(&self) -> &[u8] ⓘ
pub fn storage_key(&self) -> &[u8] ⓘ
Returns a reference to the location in the direct parent of this trie but without the common prefix for this kind of child trie.
sourcepub fn prefixed_storage_key(&self) -> PrefixedStorageKey
pub fn prefixed_storage_key(&self) -> PrefixedStorageKey
Return a the full location in the direct parent of this trie.
sourcepub fn into_prefixed_storage_key(self) -> PrefixedStorageKey
pub fn into_prefixed_storage_key(self) -> PrefixedStorageKey
Returns a the full location in the direct parent of this trie.
sourcepub fn child_type(&self) -> ChildType
pub fn child_type(&self) -> ChildType
Returns the type for this child info.
Trait Implementations
sourceimpl Decode for ChildInfo
impl Decode for ChildInfo
sourcefn decode<__CodecInputEdqy>(
__codec_input_edqy: &mut __CodecInputEdqy
) -> Result<ChildInfo, Error>where
__CodecInputEdqy: Input,
fn decode<__CodecInputEdqy>(
__codec_input_edqy: &mut __CodecInputEdqy
) -> Result<ChildInfo, Error>where
__CodecInputEdqy: Input,
fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
fn encoded_fixed_size() -> Option<usize>
fn encoded_fixed_size() -> Option<usize>
sourceimpl Encode for ChildInfo
impl Encode for ChildInfo
sourcefn 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,
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,
fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
sourceimpl Ord for ChildInfo
impl Ord for ChildInfo
1.21.0 · sourcefn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
1.21.0 · sourcefn min(self, other: Self) -> Selfwhere
Self: Sized,
fn min(self, other: Self) -> Selfwhere
Self: Sized,
1.50.0 · sourcefn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
sourceimpl PartialOrd<ChildInfo> for ChildInfo
impl PartialOrd<ChildInfo> for ChildInfo
sourcefn partial_cmp(&self, other: &ChildInfo) -> Option<Ordering>
fn partial_cmp(&self, other: &ChildInfo) -> Option<Ordering>
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl EncodeLike<ChildInfo> for ChildInfo
impl Eq for ChildInfo
impl StructuralEq for ChildInfo
impl StructuralPartialEq for ChildInfo
Auto Trait Implementations
impl RefUnwindSafe for ChildInfo
impl Send for ChildInfo
impl Sync for ChildInfo
impl Unpin for ChildInfo
impl UnwindSafe for ChildInfo
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> CheckedConversion for T
impl<T> CheckedConversion for T
sourcefn checked_from<T>(t: T) -> Option<Self>where
Self: TryFrom<T>,
fn checked_from<T>(t: T) -> Option<Self>where
Self: TryFrom<T>,
sourcefn checked_into<T>(self) -> Option<T>where
Self: TryInto<T>,
fn checked_into<T>(self) -> Option<T>where
Self: TryInto<T>,
impl<T> DecodeAll for Twhere
T: Decode,
impl<T> DecodeAll for Twhere
T: Decode,
fn decode_all(input: &mut &[u8]) -> Result<T, Error>
fn decode_all(input: &mut &[u8]) -> Result<T, Error>
Self
and consume all of the given input data. Read moreimpl<T> DecodeLimit for Twhere
T: Decode,
impl<T> DecodeLimit for Twhere
T: Decode,
fn decode_all_with_depth_limit(limit: u32, input: &mut &[u8]) -> Result<T, Error>
fn decode_all_with_depth_limit(limit: u32, input: &mut &[u8]) -> Result<T, Error>
Self
and consume all of the given input data. Read moreimpl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read morefn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read morefn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read morefn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read moresourceimpl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T, Outer> IsWrappedBy<Outer> for Twhere
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T, Outer> IsWrappedBy<Outer> for Twhere
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T> KeyedVec for Twhere
T: Codec,
impl<T> KeyedVec for Twhere
T: Codec,
impl<T> Pointable for T
impl<T> Pointable for T
sourceimpl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
sourcefn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
sourcefn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
T
. Read moresourceimpl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
sourcefn unchecked_into(self) -> T
fn unchecked_into(self) -> T
unchecked_from
.sourceimpl<T, S> UniqueSaturatedInto<T> for Swhere
T: Bounded,
S: TryInto<T>,
impl<T, S> UniqueSaturatedInto<T> for Swhere
T: Bounded,
S: TryInto<T>,
sourcefn unique_saturated_into(self) -> T
fn unique_saturated_into(self) -> T
T
.