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

source

impl ChildInfo

source

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.

source

pub fn new_default_from_vec(storage_key: Vec<u8, Global>) -> ChildInfo

Same as new_default but with Vec<u8> as input.

source

pub fn try_update(&mut self, other: &ChildInfo) -> bool

Try to update with another instance, return false if both instance are not compatible.

source

pub fn keyspace(&self) -> &[u8 ]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [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.

source

pub fn storage_key(&self) -> &[u8 ]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [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.

source

pub fn prefixed_storage_key(&self) -> PrefixedStorageKey

Return a the full location in the direct parent of this trie.

source

pub fn into_prefixed_storage_key(self) -> PrefixedStorageKey

Returns a the full location in the direct parent of this trie.

source

pub fn child_type(&self) -> ChildType

Returns the type for this child info.

Trait Implementations

source

impl Clone for ChildInfo

source

pub fn clone(&self) -> ChildInfo

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

source

impl Debug for ChildInfo

source

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

source

impl Hash for ChildInfo

source

pub fn hash<H>(&self, state: &mut H) where
__H: Hasher,

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

source

impl Ord for ChildInfo

source

pub fn cmp(&self, other: &ChildInfo) -> Ordering

This method returns an Ordering between self and other. Read more

1.21.0 · source

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values. Read more

1.21.0 · source

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values. Read more

1.50.0 · source

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval. Read more

source

impl PartialEq<ChildInfo> for ChildInfo

source

pub fn eq(&self, other: &ChildInfo) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

source

pub fn ne(&self, other: &ChildInfo) -> bool

This method tests for !=.

source

impl PartialOrd<ChildInfo> for ChildInfo

source

pub fn partial_cmp(&self, other: &ChildInfo) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

1.0.0 · source

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · source

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · source

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · source

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

source

impl Eq for ChildInfo

source

impl StructuralEq for ChildInfo

source

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

source

impl<T> Any for T where
T: 'static + ?Sized,

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

pub default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

source

impl<T> CheckedConversion for T

source

fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

source

fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

source

impl<T> DynClone for T where
T: Clone,

source

pub fn __clone_box(&self, Private) -> *mut ()

source

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T> Instrument for T

source

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

source

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> IsType<T> for T

source

fn from_ref(t: &T) -> &Self

Cast reference.

source

fn into_ref(&self) -> &T

Cast reference.

source

fn from_mut(t: &mut T) -> &mut Self

Cast mutable reference.

source

fn into_mut(&mut self) -> &mut T

Cast mutable reference.

source

impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,

source

pub fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

source

pub fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

source

impl<T> Same<T> for T

type Output = T

Should always be Self

source

impl<T> SaturatedConversion for T

source

fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more

source

fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

source

impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,

source

pub fn unchecked_into(self) -> T

The counterpart to unchecked_from.

source

impl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,

source

pub fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

source

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

source

pub fn vzip(self) -> V

source

impl<T> MaybeDebug for T where
T: Debug,

source

impl<T> MaybeDebug for T where
T: Debug,

source

impl<T> MaybeHash for T where
T: Hash,

source

impl<T> MaybeHash for T where
T: Hash,

source

impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe,

source

Enum frame_support::storage::child::ChildInfo

Variants

ParentKeyId(ChildTrieParentKeyId)

Implementations

impl ChildInfo

pub fn new_default(storage_key: &[u8]) -> ChildInfo

pub fn new_default_from_vec(storage_key: Vec<u8, Global>) -> ChildInfo

pub fn try_update(&mut self, other: &ChildInfo) -> bool

pub fn keyspace(&self) -> &[u8]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]

pub fn storage_key(&self) -> &[u8]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]

pub fn prefixed_storage_key(&self) -> PrefixedStorageKey

pub fn into_prefixed_storage_key(self) -> PrefixedStorageKey

pub fn child_type(&self) -> ChildType

Trait Implementations

impl Clone for ChildInfo

pub fn clone(&self) -> ChildInfo

fn clone_from(&mut self, source: &Self)

impl Debug for ChildInfo

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Hash for ChildInfo

pub fn hash<__H>(&self, state: &mut __H) where __H: Hasher,

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,

impl Ord for ChildInfo

pub fn cmp(&self, other: &ChildInfo) -> Ordering

fn max(self, other: Self) -> Self

fn min(self, other: Self) -> Self

fn clamp(self, min: Self, max: Self) -> Self

impl PartialEq<ChildInfo> for ChildInfo

pub fn eq(&self, other: &ChildInfo) -> bool

pub fn ne(&self, other: &ChildInfo) -> bool

impl PartialOrd<ChildInfo> for ChildInfo

pub fn partial_cmp(&self, other: &ChildInfo) -> Option<Ordering>

fn lt(&self, other: &Rhs) -> bool

fn le(&self, other: &Rhs) -> bool

fn gt(&self, other: &Rhs) -> bool

fn ge(&self, other: &Rhs) -> bool

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

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> CallHasher for T where T: Hash,

pub fn get_hash<H>(&self, hasher: H) -> u64 where H: Hasher,

impl<T> CallHasher for T where T: Hash + ?Sized,

pub default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where H: Hash + ?Sized, B: BuildHasher,

impl<T> CheckedConversion for T

fn checked_from<T>(t: T) -> Option<Self> where Self: TryFrom<T>,

fn checked_into<T>(self) -> Option<T> where Self: TryInto<T>,

impl<T> DynClone for T where T: Clone,

pub fn __clone_box(&self, Private) -> *mut ()

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> IsType<T> for T

fn from_ref(t: &T) -> &Self

fn into_ref(&self) -> &T

fn from_mut(t: &mut T) -> &mut Self

fn into_mut(&mut self) -> &mut T

impl<T, Outer> IsWrappedBy<Outer> for T where Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

pub fn from_ref(outer: &Outer) -> &T

pub fn from_mut(outer: &mut Outer) -> &mut T

impl<T> Same<T> for T

type Output = T

impl<T> SaturatedConversion for T

fn saturated_from<T>(t: T) -> Self where Self: UniqueSaturatedFrom<T>,

`ParentKeyId(ChildTrieParentKeyId)`

pub fn new_default(storage_key: &[u8 ]) -> ChildInfo

pub fn keyspace(&self) -> &[u8 ]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

pub fn storage_key(&self) -> &[u8 ]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

pub fn hash<H>(&self, state: &mut H) where
__H: Hasher,

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T> CallHasher for T where
T: Hash,

pub fn get_hash<H>(&self, hasher: H) -> u64 where
H: Hasher,

impl<T> CallHasher for T where
T: Hash + ?Sized,

pub default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,

fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,

impl<T> DynClone for T where
T: Clone,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,

fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,

fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,

impl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

impl<T> MaybeDebug for T where
T: Debug,

impl<T> MaybeDebug for T where
T: Debug,

impl<T> MaybeHash for T where
T: Hash,

impl<T> MaybeHash for T where
T: Hash,

impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe,

impl<T> Member for T where
T: 'static + Send + Sync + Debug + Eq + PartialEq<T> + Clone,