Enum frame_support::traits::Bounded
source · pub enum Bounded<T, H: Hash> {
Legacy {
hash: H::Output,
dummy: PhantomData<T>,
},
Inline(BoundedInline),
Lookup {
hash: H::Output,
len: u32,
},
}
Variants§
Legacy
A hash with no preimage length. We do not support creation of this except
for transitioning from legacy state. In the future we will make this a pure
Dummy
item storing only the final dummy
field.
Inline(BoundedInline)
A an bounded Call
. Its encoding must be at most 128 bytes.
Lookup
A hash of the call together with an upper limit for its size.`
Implementations§
source§impl<T, H: Hash> Bounded<T, H>
impl<T, H: Hash> Bounded<T, H>
sourcepub fn transmute<S: Encode>(self) -> Bounded<S, H>where
T: Encode + EncodeLike<S>,
pub fn transmute<S: Encode>(self) -> Bounded<S, H>where T: Encode + EncodeLike<S>,
Casts the wrapped type into something that encodes alike.
Examples
use frame_support::{traits::Bounded, sp_runtime::traits::BlakeTwo256};
// Transmute from `String` to `&str`.
let x: Bounded<String, BlakeTwo256> = Bounded::Inline(Default::default());
let _: Bounded<&str, BlakeTwo256> = x.transmute();
sourcepub fn hash(&self) -> H::Output
pub fn hash(&self) -> H::Output
Returns the hash of the preimage.
The hash is re-calculated every time if the preimage is inlined.
sourcepub fn lookup_hash(&self) -> Option<H::Output>
pub fn lookup_hash(&self) -> Option<H::Output>
Returns the hash to lookup the preimage.
If this is a Bounded::Inline
, None
is returned as no lookup is required.
sourcepub fn len(&self) -> Option<u32>
pub fn len(&self) -> Option<u32>
Returns the length of the preimage or None
if the length is unknown.
sourcepub fn lookup_needed(&self) -> bool
pub fn lookup_needed(&self) -> bool
Returns whether the image will require a lookup to be peeked.
sourcepub fn lookup_len(&self) -> Option<u32>
pub fn lookup_len(&self) -> Option<u32>
The maximum length of the lookup that is needed to peek Self
.
sourcepub fn unrequested(hash: H::Output, len: u32) -> Self
pub fn unrequested(hash: H::Output, len: u32) -> Self
Constructs a Lookup
bounded item.
sourcepub fn from_legacy_hash(hash: impl Into<H::Output>) -> Self
👎Deprecated: This API is only for transitioning to Scheduler v3 API
pub fn from_legacy_hash(hash: impl Into<H::Output>) -> Self
Constructs a Legacy
bounded item.
Trait Implementations§
source§impl<T, H: Hash> Decode for Bounded<T, H>where
H::Output: Decode,
PhantomData<T>: Decode,
impl<T, H: Hash> Decode for Bounded<T, H>where H::Output: Decode, PhantomData<T>: Decode,
source§fn decode<__CodecInputEdqy: Input>(
__codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>
fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<Self, Error>
§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,
§fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
fn skip<I>(input: &mut I) -> Result<(), Error>where I: Input,
§fn encoded_fixed_size() -> Option<usize>
fn encoded_fixed_size() -> Option<usize>
source§impl<T, H: Hash> Encode for Bounded<T, H>where
H::Output: Encode,
PhantomData<T>: Encode,
impl<T, H: Hash> Encode for Bounded<T, H>where H::Output: Encode, PhantomData<T>: Encode,
source§fn size_hint(&self) -> usize
fn size_hint(&self) -> usize
source§fn encode_to<__CodecOutputEdqy: Output + ?Sized>(
&self,
__codec_dest_edqy: &mut __CodecOutputEdqy
)
fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy )
§fn using_encoded<R, F>(&self, f: F) -> Rwhere
F: FnOnce(&[u8]) -> R,
fn using_encoded<R, F>(&self, f: F) -> Rwhere F: FnOnce(&[u8]) -> R,
§fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
source§impl<T, H: Hash> MaxEncodedLen for Bounded<T, H>
impl<T, H: Hash> MaxEncodedLen for Bounded<T, H>
source§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
source§impl<T: PartialEq, H: PartialEq + Hash> PartialEq<Bounded<T, H>> for Bounded<T, H>where
H::Output: PartialEq,
impl<T: PartialEq, H: PartialEq + Hash> PartialEq<Bounded<T, H>> for Bounded<T, H>where H::Output: PartialEq,
source§impl<T, H> TypeInfo for Bounded<T, H>where
H::Output: TypeInfo + 'static,
PhantomData<T>: TypeInfo + 'static,
T: TypeInfo + 'static,
H: Hash + TypeInfo + 'static,
impl<T, H> TypeInfo for Bounded<T, H>where H::Output: TypeInfo + 'static, PhantomData<T>: TypeInfo + 'static, T: TypeInfo + 'static, H: Hash + TypeInfo + 'static,
impl<T, H: Hash> EncodeLike<Bounded<T, H>> for Bounded<T, H>where H::Output: Encode, PhantomData<T>: Encode,
impl<T: Eq, H: Eq + Hash> Eq for Bounded<T, H>where H::Output: Eq,
impl<T, H: Hash> StructuralEq for Bounded<T, H>
impl<T, H: Hash> StructuralPartialEq for Bounded<T, H>
Auto Trait Implementations§
impl<T, H> RefUnwindSafe for Bounded<T, H>where T: RefUnwindSafe, <H as Hash>::Output: RefUnwindSafe,
impl<T, H> Send for Bounded<T, H>where T: Send,
impl<T, H> Sync for Bounded<T, H>where T: Sync,
impl<T, H> Unpin for Bounded<T, H>where T: Unpin, <H as Hash>::Output: Unpin,
impl<T, H> UnwindSafe for Bounded<T, H>where T: UnwindSafe, <H as Hash>::Output: UnwindSafe,
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source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
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fn borrow_mut(&mut self) -> &mut T
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impl<T> CheckedConversion for T
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impl<T> Conv for T
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T: Decode,
impl<T> DecodeAll for Twhere T: Decode,
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fn decode_all(input: &mut &[u8]) -> Result<T, Error>
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and consume all of the given input data. Read more§impl<T> DecodeLimit for Twhere
T: Decode,
impl<T> DecodeLimit for Twhere T: Decode,
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K: Borrow<Q> + ?Sized,
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fn blake2_128(&self) -> [u8; 16]
fn blake2_256(&self) -> [u8; 32]
fn blake2_128_concat(&self) -> Vec<u8, Global> ⓘ
fn twox_128(&self) -> [u8; 16]
fn twox_256(&self) -> [u8; 32]
fn twox_64_concat(&self) -> Vec<u8, Global> ⓘ
fn identity(&self) -> Vec<u8, Global> ⓘ
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