pub enum Era {
Immortal,
Mortal {
period: u64,
phase: u64,
},
}
Expand description
An era to describe the longevity of a transaction.
Variants§
Immortal
The transaction is valid forever. The genesis hash must be present in the signed content.
Mortal
The transaction will expire. Use Era::mortal
to construct this with correct values.
When used on FRAME
-based runtimes, period
cannot exceed BlockHashCount
parameter
of system
module.
Implementations§
Source§impl Era
impl Era
Sourcepub fn mortal(period: u64, current: u64) -> Self
pub fn mortal(period: u64, current: u64) -> Self
Create a new era based on a period (which should be a power of two between 4 and 65536 inclusive) and a block number on which it should start (or, for long periods, be shortly after the start).
If using Era
in the context of FRAME
runtime, make sure that period
does not exceed BlockHashCount
parameter passed to system
module, since that
prunes old blocks and renders transactions immediately invalid.
Trait Implementations§
Source§impl Decode for Era
impl Decode for Era
Source§fn decode<I: Input>(input: &mut I) -> Result<Self, Error>
fn decode<I: Input>(input: &mut I) -> Result<Self, Error>
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl<'de> Deserialize<'de> for Era
impl<'de> Deserialize<'de> for Era
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
Source§impl Encode for Era
impl Encode for Era
Source§fn encode_to<T: Output + ?Sized>(&self, output: &mut T)
fn encode_to<T: Output + ?Sized>(&self, output: &mut T)
Convert self to a slice and append it to the destination.
Source§fn size_hint(&self) -> usize
fn size_hint(&self) -> usize
If possible give a hint of expected size of the encoding. Read more
Source§fn using_encoded<R, F>(&self, f: F) -> R
fn using_encoded<R, F>(&self, f: F) -> R
Convert self to a slice and then invoke the given closure with it.
Source§fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
Calculates the encoded size. Read more
Source§impl EncodeAsType for Era
impl EncodeAsType for Era
Source§fn encode_as_type_to<ScaleEncodeResolver: TypeResolver>(
&self,
__encode_as_type_type_id: ScaleEncodeResolver::TypeId,
__encode_as_type_types: &ScaleEncodeResolver,
__encode_as_type_out: &mut Vec<u8>,
) -> Result<(), Error>
fn encode_as_type_to<ScaleEncodeResolver: TypeResolver>( &self, __encode_as_type_type_id: ScaleEncodeResolver::TypeId, __encode_as_type_types: &ScaleEncodeResolver, __encode_as_type_out: &mut Vec<u8>, ) -> Result<(), Error>
Given some
type_id
, types
, a context
and some output target for the SCALE encoded bytes,
attempt to SCALE encode the current value into the type given by type_id
.Source§fn encode_as_type<R>(
&self,
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Vec<u8>, Error>where
R: TypeResolver,
fn encode_as_type<R>(
&self,
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Vec<u8>, Error>where
R: TypeResolver,
This is a helper function which internally calls
EncodeAsType::encode_as_type_to
. Prefer to
implement that instead.Source§impl IntoVisitor for Era
impl IntoVisitor for Era
Source§type AnyVisitor<ScaleDecodeTypeResolver: TypeResolver> = Visitor<ScaleDecodeTypeResolver>
type AnyVisitor<ScaleDecodeTypeResolver: TypeResolver> = Visitor<ScaleDecodeTypeResolver>
The visitor type used to decode SCALE encoded bytes to
Self
.Source§fn into_visitor<ScaleDecodeTypeResolver: TypeResolver>() -> Self::AnyVisitor<ScaleDecodeTypeResolver>
fn into_visitor<ScaleDecodeTypeResolver: TypeResolver>() -> Self::AnyVisitor<ScaleDecodeTypeResolver>
A means of obtaining this visitor.
impl Copy for Era
impl Eq for Era
impl StructuralPartialEq for Era
Auto Trait Implementations§
impl Freeze for Era
impl RefUnwindSafe for Era
impl Send for Era
impl Sync for Era
impl Unpin for Era
impl UnwindSafe for Era
Blanket Implementations§
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T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
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T: IntoVisitor,
impl<T> DecodeAsType for Twhere
T: IntoVisitor,
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input: &mut &[u8],
type_id: <R as TypeResolver>::TypeId,
types: &R,
is_compact: bool,
) -> Result<T, Error>where
R: TypeResolver,
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input: &mut &[u8],
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Self, Error>where
R: TypeResolver,
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input: &mut &[u8],
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Self, Error>where
R: TypeResolver,
Given some input bytes, a
type_id
, and type registry, attempt to decode said bytes into
Self
. Implementations should modify the &mut
reference to the bytes such that any bytes
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Causes
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