Struct solders_instruction::AccountMeta

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

Describes a single account read or written by a program during instruction execution.

When constructing an :class:Instruction, a list of all accounts that may be read or written during the execution of that instruction must be supplied. Any account that may be mutated by the program during execution, either its data or metadata such as held lamports, must be writable.

Note that because the Solana runtime schedules parallel transaction execution around which accounts are writable, care should be taken that only accounts which actually may be mutated are specified as writable.

Args: pubkey (Pubkey): An account’s public key. is_signer (bool): True if an :class:Instruction requires a :class:~solders.transaction.Transaction signature matching pubkey. is_writable (bool): True if the account data or metadata may be mutated during program execution.

Example: >>> from solders.pubkey import Pubkey >>> from solders.instruction import AccountMeta, Instruction >>> from_pubkey = Pubkey.new_unique() >>> to_pubkey = Pubkey.new_unique() >>> program_id = Pubkey.new_unique() >>> instruction_data = bytes([1]) >>> accs = [AccountMeta(from_pubkey, is_signer=True, is_writable=True), AccountMeta(to_pubkey, is_signer=True, is_writable=True)] >>> instruction = Instruction(program_id, instruction_data, accs)

Implementations

impl AccountMeta

pub fn new(pubkey: &Pubkey, is_signer: bool, is_writable: bool) -> Self

pub fn pubkey(&self) -> Pubkey

pub fn is_signer(&self) -> bool

pub fn is_writable(&self) -> bool

pub fn from_bytes(data: &[u8]) -> PyResult<Self>

Deserialize a serialized AccountMeta object.

Args: data (bytes): the serialized AccountMeta.

Returns: AccountMeta: the deserialized AccountMeta.

pub fn __hash__(&self) -> u64

pub fn __richcmp__(&self, other: &Self, op: CompareOp) -> PyResult<bool>

pub fn __bytes__<'a>(&self, py: Python<'a>) -> &'a PyBytes

pub fn __str__(&self) -> String

pub fn __repr__(&self) -> String

pub fn __reduce__(&self) -> PyResult<(PyObject, PyObject)>

pub fn to_json(&self) -> String

Convert to a JSON string.

pub fn from_json(raw: &str) -> PyResult<Self>

Build from a JSON string.

Trait Implementations

impl Clone for AccountMeta

fn clone(&self) -> AccountMeta

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CommonMethods<'_> for AccountMeta

fn py_to_json(&self) -> String

fn py_from_json(raw: &'a str) -> Result<Self, PyErr>

impl CommonMethodsCore for AccountMeta

fn pybytes<'b>(&self, py: Python<'b>) -> &'b PyBytes

fn pystr(&self) -> String

fn pyrepr(&self) -> String

fn py_from_bytes(raw: &[u8]) -> Result<Self, PyErr>

fn pyreduce(&self) -> Result<(Py<PyAny>, Py<PyAny>), PyErr>

impl Debug for AccountMeta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AccountMeta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for AccountMeta

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

Formats the value using the given formatter.

impl From<AccountMeta> for AccountMeta

fn from(original: AccountMetaOriginal) -> AccountMeta

Converts to this type from the input type.

impl From<AccountMeta> for AccountMeta

fn from(original: AccountMeta) -> Self

Converts to this type from the input type.

impl Hash for AccountMeta

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 IntoPy<Py<PyAny>> for AccountMeta

fn into_py(self, py: Python<'_>) -> PyObject

Performs the conversion.

impl PartialEq for AccountMeta

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

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

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

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

impl PyBytesBincode for AccountMeta

fn pybytes_bincode<'a>(&self, py: Python<'a>) -> &'a PyBytes

impl PyBytesGeneral for AccountMeta

fn pybytes_general<'a>(&self, py: Python<'a>) -> &'a PyBytes

impl PyClass for AccountMeta

type Frozen = False

Whether the pyclass is frozen.

impl PyClassImpl for AccountMeta

const IS_BASETYPE: bool = true

#[pyclass(subclass)]

const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]

const IS_MAPPING: bool = false

#[pyclass(mapping)]

const IS_SEQUENCE: bool = false

#[pyclass(sequence)]

type Layout = PyCell<AccountMeta>

Layout

type BaseType = PyAny

Base class

type ThreadChecker = ThreadCheckerStub<AccountMeta>

This handles following two situations:

type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::MutableChild

Immutable or mutable

type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.

type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.

type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.

fn items_iter() -> PyClassItemsIter

fn doc(py: Python<'_>) -> PyResult<&'static CStr>

Rendered class doc

fn lazy_type_object() -> &'static LazyTypeObject<Self>

fn dict_offset() -> Option<isize>

fn weaklist_offset() -> Option<isize>

impl PyClassNewTextSignature<AccountMeta> for PyClassImplCollector<AccountMeta>

fn new_text_signature(self) -> Option<&'static str>

impl PyFromBytesBincode<'_> for AccountMeta

fn py_from_bytes_bincode(raw: &'b [u8]) -> Result<Self, PyErr>

impl PyFromBytesGeneral for AccountMeta

fn py_from_bytes_general(raw: &[u8]) -> PyResult<Self>

impl<'a, 'py> PyFunctionArgument<'a, 'py> for &'a AccountMeta

type Holder = Option<PyRef<'py, AccountMeta>>

fn extract(obj: &'py PyAny, holder: &'a mut Self::Holder) -> PyResult<Self>

impl<'a, 'py> PyFunctionArgument<'a, 'py> for &'a mut AccountMeta

type Holder = Option<PyRefMut<'py, AccountMeta>>

fn extract(obj: &'py PyAny, holder: &'a mut Self::Holder) -> PyResult<Self>

impl PyHash for AccountMeta

fn pyhash(&self) -> u64

impl PyMethods<AccountMeta> for PyClassImplCollector<AccountMeta>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for AccountMeta

type AsRefTarget = PyCell<AccountMeta>

Utility type to make Py::as_ref work.

const NAME: &'static str = "AccountMeta"

Class name.

const MODULE: Option<&'static str> = _

Module name, if any.

fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.

fn type_object(py: Python<'_>) -> &PyType

Returns the safe abstraction over the type object.

fn is_type_of(object: &PyAny) -> bool

Checks if object is an instance of this type or a subclass of this type.

fn is_exact_type_of(object: &PyAny) -> bool

Checks if object is an instance of this type.

impl RichcmpEqualityOnly for AccountMeta

fn richcmp(&self, other: &Self, op: CompareOp) -> Result<bool, PyErr>

impl Serialize for AccountMeta

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 AccountMeta

impl StructuralEq for AccountMeta

impl StructuralPartialEq for AccountMeta