Enum Operand 

pub enum Operand<N: Network> {
    Literal(Literal<N>),
    Register(Register<N>),
    ProgramID(ProgramID<N>),
    Signer,
    Caller,
    BlockHeight,
    NetworkID,
    Checksum(Option<ProgramID<N>>),
    Edition(Option<ProgramID<N>>),
    ProgramOwner(Option<ProgramID<N>>),
}

The Operand enum represents the options for an operand in an instruction. This enum is designed to for instructions such as add {Register} {Literal} into {Register}.

Variants

Literal(Literal<N>)

The operand is a literal.

Register(Register<N>)

The operand is a register.

ProgramID(ProgramID<N>)

The operand is the program ID.

Signer

The operand is the signer address. Note: This variant is only accessible in the function scope.

Caller

The operand is the caller address. Note: This variant is only accessible in the function scope.

BlockHeight

The operand is the block height. Note: This variant is only accessible in the finalize scope.

NetworkID

The operand is the network ID. Note: This variant is only accessible in the finalize scope.

Checksum(Option<ProgramID<N>>)

The operand is the program checksum. If no program ID is specified, the checksum is for the current program. If a program ID is specified, the checksum is for an external program.

Edition(Option<ProgramID<N>>)

The operand is the program edition. If no program ID is specified, the edition is for the current program. If a program ID is specified, the edition is for an external program.

ProgramOwner(Option<ProgramID<N>>)

The operand is the program owner. If no program ID is specified, the owner is for the current program. If a program ID is specified, the owner is for an external program.

Trait Implementations

impl<N: Clone + Network> Clone for Operand<N>

fn clone(&self) -> Operand<N>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<N: Network> Debug for Operand<N>

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

Prints the operand as a string.

impl<N: Network> Display for Operand<N>

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

Prints the operand as a string.

impl<N: Network> From<&Literal<N>> for Operand<N>

fn from(literal: &Literal<N>) -> Self

Initializes a new operand from a reference to a literal.

impl<N: Network> From<&Register<N>> for Operand<N>

fn from(register: &Register<N>) -> Self

Initializes a new operand from a reference to a register.

impl<N: Network> From<Literal<N>> for Operand<N>

fn from(literal: Literal<N>) -> Self

Initializes a new operand from a literal.

impl<N: Network> From<Register<N>> for Operand<N>

fn from(register: Register<N>) -> Self

Initializes a new operand from a register.

impl<N: Network> FromBytes for Operand<N>

fn read_le<R: Read>(reader: R) -> IoResult<Self>

Reads Self from reader as little-endian bytes.

fn from_bytes_le(bytes: &[u8]) -> Result<Self, Error>

where Self: Sized,

Returns Self from a byte array in little-endian order.

fn from_bytes_le_unchecked(bytes: &[u8]) -> Result<Self, Error>

where Self: Sized,

Same behavior as Self::from_bytes_le but avoids costly checks. This shall only be called when deserializing from a trusted source, such as local storage.

fn read_le_unchecked<R>(reader: R) -> Result<Self, Error>

where R: Read, Self: Sized,

Same behavior as Self::read_le but avoids costly checks. This shall only be called when deserializing from a trusted source, such as local storage.

fn read_le_with_unchecked<R>(reader: R, unchecked: bool) -> Result<Self, Error>

where R: Read, Self: Sized,

Helper function that deserializes either unchecked or checked based on the given boolean flag.

impl<N: Network> FromStr for Operand<N>

fn from_str(string: &str) -> Result<Self>

Parses a string into an operand.

type Err = Error

The associated error which can be returned from parsing.

impl<N: Hash + Network> Hash for Operand<N>

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<N: Network> Parser for Operand<N>

fn parse(string: &str) -> ParserResult<'_, Self>

Parses a string into a operand.

impl<N: PartialEq + Network> PartialEq for Operand<N>

fn eq(&self, other: &Operand<N>) -> 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<N: Network> ToBytes for Operand<N>

fn write_le<W: Write>(&self, writer: W) -> IoResult<()>

Writes self into writer as little-endian bytes.

fn to_bytes_le(&self) -> Result<Vec<u8>, Error>

where Self: Sized,

Returns self as a byte array in little-endian order.

impl<N: Eq + Network> Eq for Operand<N>

impl<N: Network> StructuralPartialEq for Operand<N>