Struct MethodFingerprint 

pub struct MethodFingerprint(/* private fields */);

Hash of method’s compact metadata, which uniquely represents method signature.

While nothing can be said about method implementation, matching method fingerprint means method name, inputs and outputs are what they are expected to be (struct and field names are ignored as explained in ContractMetadataKind::compact.

Implementations

impl MethodFingerprint

pub const fn new(method_metadata: &[u8]) -> Option<Self>

Create a new method fingerprint from its metadata.

None is returned for invalid metadata (see ContractMetadataKind::compact_external_args() for details).

pub const fn to_bytes(&self) -> &[u8; 32]

Trait Implementations

impl AnyBitPatternMarker for MethodFingerprint

where for<'__ab_io_type> Blake3Hash: AnyBitPatternMarker,

impl Clone for MethodFingerprint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MethodFingerprint

impl Debug for MethodFingerprint

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

Formats the value using the given formatter.

impl Display for MethodFingerprint

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

Formats the value using the given formatter.

impl Eq for MethodFingerprint

impl Hash for MethodFingerprint

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for MethodFingerprint

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for MethodFingerprint

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for MethodFingerprint

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl StructuralPartialEq for MethodFingerprint

impl TrivialType for MethodFingerprint

where Blake3Hash: TrivialType,

const ALIGNMENT: Alignment

Alignment of the type in metadata.

const METADATA: &[u8]

Data structure metadata in binary form, describing shape and types of the contents, see [IoTypeMetadataKind] for encoding details.

const SIZE: u32

final fn try_from_bytes(bytes: &[u8]) -> Option<(&Self, &[u8])>

Parse the beginning of aligned bytes, returns the value and the remaining bytes.

final fn try_from_bytes_exact(bytes: &[u8]) -> Option<&Self>

Like [Self::try_from_bytes()], but returns None if there are more bytes than the value

final fn try_from_bytes_mut(bytes: &mut [u8]) -> Option<(&mut Self, &mut [u8])>

Like [Self::try_from_bytes()], but returns an exclusive reference.

final fn try_from_bytes_mut_exact(bytes: &mut [u8]) -> Option<&mut Self>

Like [Self::try_from_bytes_mut()], but returns None if there are more bytes than the value

final fn from_bytes(bytes: &[u8]) -> Option<(&Self, &[u8])>

where Self: AnyBitPattern,

Create a reference to a value at the beginning of aligned bytes, returns the value and the remaining bytes.

final fn from_bytes_exact(bytes: &[u8]) -> Option<&Self>

where Self: AnyBitPattern,

Like [Self::from_bytes()], but returns None if there are more bytes than the value

final unsafe fn from_bytes_unchecked(bytes: &[u8]) -> &Self

Similar to [Self::from_bytes()], but for any type and without any checks

final fn from_bytes_mut(bytes: &mut [u8]) -> Option<(&mut Self, &mut [u8])>

where Self: AnyBitPattern,

Like [Self::from_bytes()], but returns an exclusive reference

final fn from_bytes_mut_exact(bytes: &mut [u8]) -> Option<&mut Self>

where Self: AnyBitPattern,

Like [Self::from_bytes_mut()], but returns None if there are more bytes than the value

final unsafe fn from_bytes_mut_unchecked(bytes: &mut [u8]) -> &mut Self

Similar to [Self::from_bytes_mut()], but for any type and without any checks

final fn slice_from_bytes( bytes: &[u8], count: usize, ) -> Option<(&[Self], &[u8])>

where Self: AnyBitPattern,

Create a slice of count values at the beginning of aligned bytes, returns the values and the remaining bytes.

final fn slice_from_bytes_mut( bytes: &mut [u8], count: usize, ) -> Option<(&mut [Self], &mut [u8])>

where Self: AnyBitPattern,

Like [Self::slice_from_bytes()], but returns an exclusive reference

final fn as_bytes(&self) -> &[u8; ab_io_type::trivial_type::SIZE_OF::<Self>]

Access the underlying byte representation of a data structure

final fn slice_as_bytes(values: &[Self]) -> &[u8]

Access the underlying byte representation of a slice of values

final fn as_bytes_mut( &mut self, ) -> &mut [u8; ab_io_type::trivial_type::SIZE_OF::<Self>]

where Self: AnyBitPattern,

Access the underlying mutable byte representation of a data structure

final unsafe fn as_bytes_mut_unchecked( &mut self, ) -> &mut [u8; ab_io_type::trivial_type::SIZE_OF::<Self>]

Similar to [Self::as_bytes_mut()], but for any type.