Struct mantle::types::H160

#[repr(C)]
pub struct H160(pub [u8; 20]);

A 160 bits (20 bytes) hash type (aka Address).

Methods

impl H160

pub unsafe fn from_raw(bytes: *const u8) -> H160

Creates an Address from a big-endian byte array.

impl H160

pub fn repeat_byte(byte: u8) -> H160

Returns a new fixed hash where all bits are set to the given byte.

pub fn zero() -> H160

Returns a new zero-initialized fixed hash.

pub fn len_bytes() -> usize

Returns the size of this hash in bytes.

pub fn as_bytes(&self) -> &[u8]

Extracts a byte slice containing the entire fixed hash.

pub fn as_bytes_mut(&mut self) -> &mut [u8]

Extracts a mutable byte slice containing the entire fixed hash.

pub fn as_fixed_bytes(&self) -> &[u8; 20]

Extracts a reference to the byte array containing the entire fixed hash.

pub fn as_fixed_bytes_mut(&mut self) -> &mut [u8; 20]

Extracts a reference to the byte array containing the entire fixed hash.

pub fn to_fixed_bytes(self) -> [u8; 20]

Returns the inner bytes array.

pub fn as_ptr(&self) -> *const u8

Returns a constant raw pointer to the value.

pub fn as_mut_ptr(&mut self) -> *mut u8

Returns a mutable raw pointer to the value.

pub fn assign_from_slice(&mut self, src: &[u8])

Assign the bytes from the byte slice src to self.

Note

The given bytes are interpreted in big endian order.

Panics

If the length of src and the number of bytes in self do not match.

pub fn from_slice(src: &[u8]) -> H160

Create a new fixed-hash from the given slice src.

Note

The given bytes are interpreted in big endian order.

Panics

If the length of src and the number of bytes in Self do not match.

pub fn covers(&self, b: &H160) -> bool

Returns true if all bits set in b are also set in self.

pub fn is_zero(&self) -> bool

Returns true if no bits are set.

impl H160

Utilities using the byteorder crate.

pub fn to_low_u64_be(&self) -> u64

Returns the lowest 8 bytes interpreted as big-endian.

Note

For hash type with less than 8 bytes the missing bytes are interpreted as being zero.

pub fn to_low_u64_le(&self) -> u64

Returns the lowest 8 bytes interpreted as little-endian.

Note

For hash type with less than 8 bytes the missing bytes are interpreted as being zero.

pub fn to_low_u64_ne(&self) -> u64

Returns the lowest 8 bytes interpreted as native-endian.

Note

For hash type with less than 8 bytes the missing bytes are interpreted as being zero.

pub fn from_low_u64_be(val: u64) -> H160

Creates a new hash type from the given u64 value.

Note

• The given u64 value is interpreted as big endian.
• Ignores the most significant bits of the given value if the hash type has less than 8 bytes.

pub fn from_low_u64_le(val: u64) -> H160

Creates a new hash type from the given u64 value.

Note

• The given u64 value is interpreted as little endian.
• Ignores the most significant bits of the given value if the hash type has less than 8 bytes.

pub fn from_low_u64_ne(val: u64) -> H160

Creates a new hash type from the given u64 value.

Note

• The given u64 value is interpreted as native endian.
• Ignores the most significant bits of the given value if the hash type has less than 8 bytes.

Trait Implementations

impl Hash for H160

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, 

Feeds a slice of this type into the given [Hasher].

impl PartialOrd<H160> for H160

fn partial_cmp(&self, other: &H160) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'de> Deserialize<'de> for H160

fn deserialize<__D>(
    __deserializer: __D
) -> Result<H160, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl<I> IndexMut<I> for H160 where
    I: SliceIndex<[u8], Output = [u8]>, 

fn index_mut(&mut self, index: I) -> &mut <I as SliceIndex<[u8]>>::Output

Performs the mutable indexing (container[index]) operation.

impl Eq for H160

impl Default for H160

fn default() -> H160

Returns the "default value" for a type.

impl<'r> BitOrAssign<&'r H160> for H160

fn bitor_assign(&mut self, rhs: &'r H160)

Performs the |= operation.

impl BitOrAssign<H160> for H160

fn bitor_assign(&mut self, rhs: H160)

Performs the |= operation.

impl Clone for H160

fn clone(&self) -> H160

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<H160> for H160

fn eq(&self, other: &H160) -> bool

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

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Address for H160

fn path_repr(&self) -> String

impl<'l, 'r> BitAnd<&'r H160> for &'l H160

type Output = H160

The resulting type after applying the & operator.

fn bitand(self, rhs: &'r H160) -> <&'l H160 as BitAnd<&'r H160>>::Output

Performs the & operation.

impl BitAnd<H160> for H160

type Output = H160

The resulting type after applying the & operator.

fn bitand(self, rhs: H160) -> <H160 as BitAnd<H160>>::Output

Performs the & operation.

impl AsRef<[u8]> for H160

fn as_ref(&self) -> &[u8]

Performs the conversion.

impl<I> Index<I> for H160 where
    I: SliceIndex<[u8]>, 

type Output = <I as SliceIndex<[u8]>>::Output

The returned type after indexing.

fn index(&self, index: I) -> &<I as SliceIndex<[u8]>>::Output

Performs the indexing (container[index]) operation.

impl FromStr for H160

type Err = FromHexError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<H160, <H160 as FromStr>::Err>

Parses a string s to return a value of this type.

impl Debug for H160

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

Formats the value using the given formatter.

impl Display for H160

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

Formats the value using the given formatter.

impl<'l, 'r> BitOr<&'r H160> for &'l H160

type Output = H160

The resulting type after applying the | operator.

fn bitor(self, rhs: &'r H160) -> <&'l H160 as BitOr<&'r H160>>::Output

Performs the | operation.

impl BitOr<H160> for H160

type Output = H160

The resulting type after applying the | operator.

fn bitor(self, rhs: H160) -> <H160 as BitOr<H160>>::Output

Performs the | operation.

impl<'l, 'r> BitXor<&'r H160> for &'l H160

type Output = H160

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: &'r H160) -> <&'l H160 as BitXor<&'r H160>>::Output

Performs the ^ operation.

impl BitXor<H160> for H160

type Output = H160

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: H160) -> <H160 as BitXor<H160>>::Output

Performs the ^ operation.

impl LowerHex for H160

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

Formats the value using the given formatter.

impl UpperHex for H160

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

Formats the value using the given formatter.

impl Ord for H160

fn cmp(&self, other: &H160) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl AsMut<[u8]> for H160

fn as_mut(&mut self) -> &mut [u8]

Performs the conversion.

impl Serialize for H160

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<'r> BitAndAssign<&'r H160> for H160

fn bitand_assign(&mut self, rhs: &'r H160)

Performs the &= operation.

impl BitAndAssign<H160> for H160

fn bitand_assign(&mut self, rhs: H160)

Performs the &= operation.

impl Copy for H160

impl From<i16> for H160

fn from(prim: i16) -> H160

Performs the conversion.

impl From<H160> for H256

fn from(value: H160) -> H256

Performs the conversion.

impl From<isize> for H160

fn from(prim: isize) -> H160

Performs the conversion.

impl From<u8> for H160

fn from(prim: u8) -> H160

Performs the conversion.

impl From<i32> for H160

fn from(prim: i32) -> H160

Performs the conversion.

impl From<i8> for H160

fn from(prim: i8) -> H160

Performs the conversion.

impl From<u16> for H160

fn from(prim: u16) -> H160

Performs the conversion.

impl<'a> From<&'a [u8; 20]> for H160

fn from(bytes: &'a [u8; 20]) -> H160

Constructs a hash type from the given reference to the bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl From<u32> for H160

fn from(prim: u32) -> H160

Performs the conversion.

impl From<u64> for H160

fn from(prim: u64) -> H160

Performs the conversion.

impl From<u128> for H160

fn from(prim: u128) -> H160

Performs the conversion.

impl From<[u8; 20]> for H160

fn from(bytes: [u8; 20]) -> H160

Constructs a hash type from the given bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl From<i128> for H160

fn from(prim: i128) -> H160

Performs the conversion.

impl From<H256> for H160

fn from(value: H256) -> H160

Performs the conversion.

impl<'a> From<&'a mut [u8; 20]> for H160

fn from(bytes: &'a mut [u8; 20]) -> H160

Constructs a hash type from the given reference to the mutable bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl From<usize> for H160

fn from(prim: usize) -> H160

Performs the conversion.

impl From<i64> for H160

fn from(prim: i64) -> H160

Performs the conversion.

impl<'r> BitXorAssign<&'r H160> for H160

fn bitxor_assign(&mut self, rhs: &'r H160)

Performs the ^= operation.

impl BitXorAssign<H160> for H160

fn bitxor_assign(&mut self, rhs: H160)

Performs the ^= operation.