[−][src]Struct ckb_types::packed::OutPoint
Implementations
impl OutPoint
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pub const TOTAL_SIZE: usize
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pub const FIELD_SIZES: [usize; 2]
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pub const FIELD_COUNT: usize
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pub fn tx_hash(&self) -> Byte32
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pub fn index(&self) -> Uint32
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pub fn as_reader<'r>(&'r self) -> OutPointReader<'r>
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impl OutPoint
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pub fn new(tx_hash: Byte32, index: u32) -> Self
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Creates a new OutPoint
.
pub fn null() -> Self
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Creates a new null OutPoint
.
pub fn is_null(&self) -> bool
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Checks whether self is a null OutPoint
.
pub fn to_cell_key(&self) -> Vec<u8>
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Generates a binary data to be used as a key for indexing cells in storage.
Notice
The difference between Self::as_slice()
and Self::to_cell_key()
is the byteorder of the field index
.
-
Uses little endian for the field
index
in serialization.Because in the real world, the little endian machines make up the majority, we can cast it as a number without re-order the bytes.
-
Uses big endian for the field
index
to index cells in storage.So we can use
tx_hash
as key prefix to seek the cells from storage in the forward order, so as to traverse cells in the forward order too.
Trait Implementations
impl Clone for OutPoint
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impl Debug for OutPoint
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impl Default for OutPoint
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impl Display for OutPoint
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impl Entity for OutPoint
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type Builder = OutPointBuilder
const NAME: &'static str
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fn new_unchecked(data: Bytes) -> Self
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fn as_bytes(&self) -> Bytes
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fn as_slice(&self) -> &[u8]
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fn from_slice(slice: &[u8]) -> VerificationResult<Self>
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fn from_compatible_slice(slice: &[u8]) -> VerificationResult<Self>
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fn new_builder() -> Self::Builder
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fn as_builder(self) -> Self::Builder
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impl Eq for OutPoint
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impl Hash for OutPoint
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fn hash<H: Hasher>(&self, state: &mut H)
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
impl LowerHex for OutPoint
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impl<T> PackVec<OutPointVec, OutPoint> for T where
T: IntoIterator<Item = OutPoint>,
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T: IntoIterator<Item = OutPoint>,
fn pack(self) -> OutPointVec
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impl PartialEq<OutPoint> for OutPoint
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Auto Trait Implementations
impl RefUnwindSafe for OutPoint
impl Send for OutPoint
impl Sync for OutPoint
impl Unpin for OutPoint
impl UnwindSafe for OutPoint
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> PackVec<OutPointVec, OutPoint> for T where
T: IntoIterator<Item = OutPoint>,
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T: IntoIterator<Item = OutPoint>,
pub fn pack(Self) -> OutPointVec
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impl<T> PackVec<OutPointVec, OutPoint> for T where
T: IntoIterator<Item = OutPoint>,
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T: IntoIterator<Item = OutPoint>,
pub fn pack(Self) -> OutPointVec
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impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,