Struct OpCode 

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

An OpenTimestamps opcode.

This is always a valid opcode.

Implementations

impl OpCode

pub const fn tag(self) -> u8

Returns the 8-bit tag identifying the opcode.

pub const fn has_immediate(&self) -> bool

Returns true when the opcode requires an immediate operand.

pub const fn is_control(&self) -> bool

Returns true for control opcodes.

pub const fn is_digest(&self) -> bool

Returns true for digest opcodes.

pub const fn as_digest(&self) -> Option<DigestOp>

Returns the digest opcode wrapper, if applicable.

pub fn execute( &self, input: impl AsRef<[u8]>, immediate: impl AsRef<[u8]>, ) -> Vec<u8>

Executes the opcode on the given input data, with an optional immediate value.

Panics

Panics if the opcode is a control opcode.

pub fn execute_in<A: Allocator>( &self, input: impl AsRef<[u8]>, immediate: impl AsRef<[u8]>, alloc: A, ) -> Vec<u8, A>

Executes the opcode on the given input data, with an optional immediate value.

Panics

Panics if the opcode is a control opcode.

impl OpCode

pub const SHA1: Self

The 0x02 (“SHA1”) opcode.

impl OpCode

pub const RIPEMD160: Self

The 0x03 (“RIPEMD160”) opcode.

impl OpCode

pub const SHA256: Self

The 0x08 (“SHA256”) opcode.

impl OpCode

pub const KECCAK256: Self

The 0x67 (“KECCAK256”) opcode.

impl OpCode

pub const APPEND: Self

The 0xf0 (“APPEND”) opcode.

impl OpCode

pub const PREPEND: Self

The 0xf1 (“PREPEND”) opcode.

impl OpCode

pub const REVERSE: Self

The 0xf2 (“REVERSE”) opcode.

impl OpCode

pub const HEXLIFY: Self

The 0xf3 (“HEXLIFY”) opcode.

impl OpCode

pub const ATTESTATION: Self

The 0x00 (“ATTESTATION”) opcode.

impl OpCode

pub const FORK: Self

The 0xff (“FORK”) opcode.

impl OpCode

pub const fn new(v: u8) -> Option<Self>

pub const fn name(&self) -> &'static str

Trait Implementations

impl Clone for OpCode

fn clone(&self) -> OpCode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OpCode

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

Formats the value using the given formatter.

impl Decode for OpCode

fn decode(decoder: &mut impl Decoder) -> Result<Self, DecodeError>

fn decode_trailing( decoder: &mut impl Decoder, ) -> Result<Option<Self>, DecodeError>

Decodes a trailing optional value implementing the Decode trait.

impl Default for OpCode

fn default() -> OpCode

Returns the “default value” for a type.

impl Display for OpCode

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

Formats the opcode as a string.

impl Encode for OpCode

fn encode(&self, encoder: &mut impl Encoder) -> Result<(), EncodeError>

impl FromStr for OpCode

type Err = OpCodeFromStrError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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

impl Hash for OpCode

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 OpCode

fn cmp(&self, other: &OpCode) -> 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.

impl PartialEq<OpCode> for DigestOp

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<u8> for OpCode

fn eq(&self, other: &u8) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for OpCode

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for OpCode

fn partial_cmp(&self, other: &OpCode) -> 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 Copy for OpCode

impl Eq for OpCode

impl StructuralPartialEq for OpCode