Enum frame_support::Void 
source · pub enum Void {}Expand description
The void type - it cannot exist.
Trait Implementations§
source§impl Decode for Void
 
impl Decode for Void
source§fn decode<__CodecInputEdqy>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Void, Error>where
    __CodecInputEdqy: Input,
 
fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<Void, Error>where __CodecInputEdqy: Input,
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 Encode for Void
 
impl Encode for Void
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 encode_to<T>(&self, dest: &mut T)where
    T: Output + ?Sized,
 
fn encode_to<T>(&self, dest: &mut T)where T: Output + ?Sized,
Convert self to a slice and append it to the destination.
source§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,
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 MaxEncodedLen for Void
 
impl MaxEncodedLen for Void
source§fn max_encoded_len() -> usize
 
fn max_encoded_len() -> usize
Upper bound, in bytes, of the maximum encoded size of this item.
source§impl PartialEq<Void> for Void
 
impl PartialEq<Void> for Void
impl EncodeLike<Void> for Void
impl Eq for Void
impl StructuralEq for Void
impl StructuralPartialEq for Void
Auto Trait Implementations§
impl RefUnwindSafe for Void
impl Send for Void
impl Sync for Void
impl Unpin for Void
impl UnwindSafe for Void
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
    T: ?Sized,
 
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
 
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CheckedConversion for T
 
impl<T> CheckedConversion for T
source§impl<T> DecodeLimit for Twhere
    T: Decode,
 
impl<T> DecodeLimit for Twhere T: Decode,
source§impl<Q, K> Equivalent<K> for Qwhere
    Q: Eq + ?Sized,
    K: Borrow<Q> + ?Sized,
 
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
 
fn equivalent(&self, key: &K) -> bool
Compare self to 
key and return true if they are equal.§impl<Q, K> Equivalent<K> for Qwhere
    Q: Eq + ?Sized,
    K: Borrow<Q> + ?Sized,
 
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
§fn equivalent(&self, key: &K) -> bool
 
fn equivalent(&self, key: &K) -> bool
Checks if this value is equivalent to the given key. Read more
source§impl<T> Hashable for Twhere
    T: Codec,
 
impl<T> Hashable for Twhere T: Codec,
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> ⓘ
source§impl<T> Instrument for T
 
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
 
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
 
fn in_current_span(self) -> Instrumented<Self>
source§impl<T, Outer> IsWrappedBy<Outer> for Twhere
    Outer: AsRef<T> + AsMut<T> + From<T>,
    T: From<Outer>,
 
impl<T, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,
source§impl<T> SaturatedConversion for T
 
impl<T> SaturatedConversion for T
source§fn saturated_from<T>(t: T) -> Selfwhere
    Self: UniqueSaturatedFrom<T>,
 
fn saturated_from<T>(t: T) -> Selfwhere Self: UniqueSaturatedFrom<T>,
source§fn saturated_into<T>(self) -> Twhere
    Self: UniqueSaturatedInto<T>,
 
fn saturated_into<T>(self) -> Twhere Self: UniqueSaturatedInto<T>,
Consume self to return an equivalent value of 
T. Read moresource§impl<S, T> UncheckedInto<T> for Swhere
    T: UncheckedFrom<S>,
 
impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,
source§fn unchecked_into(self) -> T
 
fn unchecked_into(self) -> T
The counterpart to 
unchecked_from.source§impl<T, S> UniqueSaturatedInto<T> for Swhere
    T: Bounded,
    S: TryInto<T>,
 
impl<T, S> UniqueSaturatedInto<T> for Swhere T: Bounded, S: TryInto<T>,
source§fn unique_saturated_into(self) -> T
 
fn unique_saturated_into(self) -> T
Consume self to return an equivalent value of 
T.