Enum ScanSourceRef

pub enum ScanSourceRef<'a> {
    Path(&'a Path),
    File(&'a File),
    Buffer(&'a MemSlice),
}

A reference to a single item in ScanSources

Variants

Path(&'a Path)

File(&'a File)

Buffer(&'a MemSlice)

Implementations

impl ScanSourceRef<'_>

pub fn to_include_path_name(&self) -> &str

Get the name for include_paths

pub fn to_memslice(&self) -> PolarsResult<MemSlice>

Turn the scan source into a memory slice

pub fn to_memslice_async_assume_latest( &self, run_async: bool, ) -> PolarsResult<MemSlice>

pub fn to_memslice_possibly_async( &self, run_async: bool, cache_entries: Option<&Vec<Arc<FileCacheEntry>>>, index: usize, ) -> PolarsResult<MemSlice>

pub async fn to_dyn_byte_source( &self, builder: &DynByteSourceBuilder, cloud_options: Option<&CloudOptions>, ) -> PolarsResult<DynByteSource>

Available on crate feature cloud only.

Trait Implementations

impl<'a> Clone for ScanSourceRef<'a>

fn clone(&self) -> ScanSourceRef<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ScanSourceRef<'a>

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

Formats the value using the given formatter.

impl Display for ScanSourceRef<'_>

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

Formats the value using the given formatter.

impl<'a> Copy for ScanSourceRef<'a>