Struct hdk::prelude::OpenChain

pub struct OpenChain {
    pub author: HoloHash<Agent>,
    pub timestamp: Timestamp,
    pub action_seq: u32,
    pub prev_action: HoloHash<Action>,
    pub prev_dna_hash: HoloHash<Dna>,
}

Expand description

When migrating to a new version of a DNA, this action is committed to the new chain to declare the migration path taken. Currently unused

Fields§

§author: HoloHash<Agent>§timestamp: Timestamp§action_seq: u32§prev_action: HoloHash<Action>§prev_dna_hash: HoloHash<Dna>

Trait Implementations§

impl ActionBuilder<OpenChain> for OpenChain

fn build(self, common: ActionBuilderCommon) -> OpenChain

impl ActionUnweighed for OpenChain

type Weighed = OpenChain

type Weight = ()

fn weighed(self, _weight: ()) -> OpenChain

Add a weight to this unweighed action, making it “weighed”. The weight is determined by the weigh callback, which is run on the unweighed version of this action.

impl ActionWeighed for OpenChain

type Unweighed = OpenChain

type Weight = ()

fn into_action(self) -> Action

Construct the full Action enum with this variant.

fn unweighed(self) -> <OpenChain as ActionWeighed>::Unweighed

Erase the rate limiting weight info, creating an “unweighed” version of this action. This is used primarily by validators who need to run the weigh callback on an action they received, and want to make sure their callback is not using the predefined weight to influence the result.

impl Clone for OpenChain

fn clone(&self) -> OpenChain

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

impl Debug for OpenChain

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

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for OpenChain

fn deserialize<D>( deserializer: D ) -> Result<OpenChain, <D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl From<(OpenChain, ActionBuilderCommon)> for OpenChain

fn from(_: (OpenChain, ActionBuilderCommon)) -> OpenChain

Converts to this type from the input type.

impl Hash for OpenChain

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, Self: Sized,

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

impl HashableContent for OpenChain

type HashType = Action

The HashType which this content will be hashed to

fn hash_type(&self) -> <OpenChain as HashableContent>::HashType

The HashType which this content will be hashed to

fn hashable_content(&self) -> HashableContentBytes

Return a subset of the content, either as SerializedBytes “content”, which will be used to compute the hash, or as an already precomputed hash which will be used directly

impl PartialEq for OpenChain

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

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

1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for OpenChain

fn serialize<S>( &self, serializer: S ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl TryFrom<&OpenChain> for SerializedBytes

type Error = SerializedBytesError

The type returned in the event of a conversion error.

fn try_from(t: &OpenChain) -> Result<SerializedBytes, SerializedBytesError>

Performs the conversion.

impl TryFrom<OpenChain> for SerializedBytes

type Error = SerializedBytesError

The type returned in the event of a conversion error.

fn try_from(t: OpenChain) -> Result<SerializedBytes, SerializedBytesError>

Performs the conversion.

impl TryFrom<SerializedBytes> for OpenChain

type Error = SerializedBytesError

The type returned in the event of a conversion error.

fn try_from(sb: SerializedBytes) -> Result<OpenChain, SerializedBytesError>

Performs the conversion.

impl Eq for OpenChain

impl StructuralPartialEq for OpenChain

Auto Trait Implementations§

impl Freeze for OpenChain

impl RefUnwindSafe for OpenChain

impl Send for OpenChain

impl Sync for OpenChain

impl Unpin for OpenChain

impl UnwindSafe for OpenChain

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

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

impl<F, W, T, D> Deserialize<With<T, W>, D> for F
where W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

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

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

fn in_current_span(self) -> Instrumented<Self> ⓘ

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

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> LayoutRaw for T

fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Gets the layout of the type.

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

impl<T> Same for T

type Output = T

Should always be Self

impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more

fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).

fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.

fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> Upcastable for T
where T: Any + Send + Sync + 'static,

fn upcast_any_ref(&self) -> &(dyn Any + 'static)

upcast ref

fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)

upcast mut ref

fn upcast_any_box(self: Box<T>) -> Box<dyn Any>

upcast boxed dyn

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,