Trait polars_io::mmap::MmapBytesReader

pub trait MmapBytesReader: Read + Seek + Send + Sync {
    fn to_file(&self) -> Option<&File> { ... }
    fn to_bytes(&self) -> Option<&[u8]> { ... }
}

Available on crate features csv-file or parquet or ipc or json only.

Trait used to get a hold to file handler or to the underlying bytes without performing a Read.

Provided Methods

fn to_file(&self) -> Option<&File>

fn to_bytes(&self) -> Option<&[u8]>

Implementations on Foreign Types

impl MmapBytesReader for File

fn to_file(&self) -> Option<&File>

impl MmapBytesReader for BufReader<File>

fn to_file(&self) -> Option<&File>

impl<T> MmapBytesReader for Cursor<T>where
    T: AsRef<[u8]> + Send + Sync,

fn to_bytes(&self) -> Option<&[u8]>

impl<T: MmapBytesReader + ?Sized> MmapBytesReader for Box<T>

fn to_file(&self) -> Option<&File>

fn to_bytes(&self) -> Option<&[u8]>

impl<T: MmapBytesReader> MmapBytesReader for &mut T

fn to_file(&self) -> Option<&File>

fn to_bytes(&self) -> Option<&[u8]>

Implementors