Trait Reader 

pub trait Reader: Send + Sync {
    // Required methods
    fn extensions(&self) -> &[&'static str];
    fn read(&self, path: &Path, options: &ReadOptions) -> Result<Table>;

    // Provided method
    fn name(&self) -> &'static str { ... }
}

A backend that knows how to read one or more tabular formats. Implementors register themselves with an Engine.

Send + Sync so engines can be shared across threads. All methods take &self so implementors can wrap their internals in Arc<Mutex<...>> if they need interior state.

Required Methods

fn extensions(&self) -> &[&'static str]

Lowercase file extensions this reader handles, without the leading dot (e.g. &["xlsx", "xls"]).

fn read(&self, path: &Path, options: &ReadOptions) -> Result<Table>

Open and read the file at path per the supplied options.

Provided Methods

fn name(&self) -> &'static str

Human-readable backend name for diagnostics ("calamine", "csv").

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Reader for CalamineReader

Available on crate feature calamine only.

impl Reader for CsvReader

Available on crate feature csv only.