Struct holochain_types::prelude::action::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>,
}

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>

Implementations

impl OpenChain

pub fn from_builder( common: ActionBuilderCommon, prev_dna_hash: HoloHash<Dna> ) -> OpenChain

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.

fn weightless(self) -> Self::Weighed

Add zero weight to this unweighed action, making it “weighed”.

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<'arbitrary> Arbitrary<'arbitrary> for OpenChain

fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<OpenChain, Error>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<OpenChain, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for OpenChain

fn clone(&self) -> OpenChain

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for OpenChain

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

Formats the value using the given formatter.

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.

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.

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

Feeds a slice of this type into the given Hasher.

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<OpenChain> for OpenChain

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

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

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.

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 StructuralEq for OpenChain

impl StructuralPartialEq for OpenChain