Struct mz_persist_types::dyn_col::DynColumnMut

pub struct DynColumnMut(DataType, Box<dyn Any + Send + Sync>);

A type-erased crate::columnar::Data::Mut.

Tuple Fields

0: DataType

1: Box<dyn Any + Send + Sync>

Implementations

impl DynColumnMut

pub fn new<T: Data>(col: Box<T::Mut>) -> Self

Create a new DynColumnMut from an instance of Data::Mut.

pub(crate) fn new_untyped(typ: &DataType) -> Self

pub(crate) fn typ(&self) -> &DataType

pub fn downcast<T: Data>(self) -> Result<Box<T::Mut>, String>

Returns the inner value if it is a column of type T, or an Err if it isn’t.

pub fn downcast_mut<T: Data>(&mut self) -> Result<&mut T::Mut, String>

Returns a typed, exclusive reference to the inner value if it is a column of type T, or an Err if it isn’t.

pub(crate) fn push_default(&mut self)

pub(crate) fn push_from(&mut self, src: &DynColumnRef, idx: usize)

pub fn finish<T: Data>(self) -> Result<DynColumnRef, String>

Closes the column to pushes and returns it as a DynColumnRef.

Trait Implementations

impl Debug for DynColumnMut

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

Formats the value using the given formatter.

impl From<DynColumnMut> for DynColumnRef

fn from(value: DynColumnMut) -> Self

Converts to this type from the input type.