Enum sp_storage::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 ]) -> Self

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>) -> Self

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

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

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

Formats the value using the given formatter. Read more

source

impl Hash for ChildInfo

source

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

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

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

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

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

source

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

This method tests for !=.

source

impl PartialOrd<ChildInfo> for ChildInfo

source

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

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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> 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.

Enum sp_storage::ChildInfo

Variants

ParentKeyId(ChildTrieParentKeyId)

Implementations

impl ChildInfo

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

pub fn new_default_from_vec(storage_key: Vec<u8>) -> Self

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

fn clone(&self) -> ChildInfo

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

impl Debug for ChildInfo

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

impl Hash for ChildInfo

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

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

impl Ord for ChildInfo

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

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

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

impl PartialOrd<ChildInfo> for ChildInfo

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> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

type Error = <U as TryFrom<T>>::Error

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

`ParentKeyId(ChildTrieParentKeyId)`

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

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]`

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

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