Struct datafusion_python::expr::literal::PyLiteral

pub struct PyLiteral {
    pub value: ScalarValue,
}

Fields

value: ScalarValue

Implementations

impl PyLiteral

pub fn value_f32(&self) -> PyResult<Option<f32>>

pub fn value_f64(&self) -> PyResult<Option<f64>>

pub fn value_decimal128(&mut self) -> PyResult<(Option<i128>, u8, i8)>

pub fn value_i8(&self) -> PyResult<Option<i8>>

pub fn value_i16(&self) -> PyResult<Option<i16>>

pub fn value_i32(&self) -> PyResult<Option<i32>>

pub fn value_i64(&self) -> PyResult<Option<i64>>

pub fn value_u8(&self) -> PyResult<Option<u8>>

pub fn value_u16(&self) -> PyResult<Option<u16>>

pub fn value_u32(&self) -> PyResult<Option<u32>>

pub fn value_u64(&self) -> PyResult<Option<u64>>

pub fn value_date32(&self) -> PyResult<Option<i32>>

pub fn value_date64(&self) -> PyResult<Option<i64>>

pub fn value_time64(&self) -> PyResult<Option<i64>>

pub fn value_timestamp(&mut self) -> PyResult<(Option<i64>, Option<String>)>

pub fn value_bool(&self) -> PyResult<Option<bool>>

pub fn value_string(&self) -> PyResult<Option<String>>

pub fn value_interval_day_time(&self) -> PyResult<Option<(i32, i32)>>

Trait Implementations

impl Clone for PyLiteral

fn clone(&self) -> PyLiteral

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<PyLiteral> for ScalarValue

fn from(lit: PyLiteral) -> ScalarValue

Converts to this type from the input type.

impl From<ScalarValue> for PyLiteral

fn from(value: ScalarValue) -> PyLiteral

Converts to this type from the input type.

impl IntoPy<Py<PyAny>> for PyLiteral

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

Performs the conversion.

impl PyClass for PyLiteral

type Frozen = False

Whether the pyclass is frozen.

impl PyClassImpl for PyLiteral

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<PyLiteral>

Layout

type BaseType = PyAny

Base class

type ThreadChecker = ThreadCheckerStub<PyLiteral>

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<'a, 'py> PyFunctionArgument<'a, 'py> for &'a PyLiteral

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

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

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

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

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

impl PyMethods<PyLiteral> for PyClassImplCollector<PyLiteral>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for PyLiteral

type AsRefTarget = PyCell<PyLiteral>

Utility type to make Py::as_ref work.

const NAME: &'static str = _

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.