Struct ink_metadata::layout::HashingStrategy

pub struct HashingStrategy { /* private fields */ }

The unbounded hashing strategy.

The offset key is used as another postfix for the computation. So the actual formula is: hasher(prefix + encoded(key) + offset + postfix) Where + in this contexts means append of the byte slices.

Implementations

impl HashingStrategy

pub fn new(hasher: CryptoHasher, prefix: Vec<u8>, postfix: Vec<u8>) -> Self

Creates a new unbounded hashing strategy.

pub fn hasher(&self) -> &CryptoHasher

Returns the supported crypto hasher.

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

Returns the optional prefix to the computed hash.

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

Returns the optional postfix to the computed hash.

Trait Implementations

impl Debug for HashingStrategy

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HashingStrategy

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

Deserialize this value from the given Serde deserializer.

impl Ord for HashingStrategy

fn cmp(&self, other: &HashingStrategy) -> 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 where
    Self: PartialOrd<Self>, 

Restrict a value to a certain interval.

impl PartialEq<HashingStrategy> for HashingStrategy

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

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

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

This method tests for !=.

impl PartialOrd<HashingStrategy> for HashingStrategy

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

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

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

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

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

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

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

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

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 Serialize for HashingStrategy

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl Eq for HashingStrategy

impl StructuralEq for HashingStrategy

impl StructuralPartialEq for HashingStrategy