Struct File

pub struct File { /* private fields */ }

Implementations

impl File

pub fn create(path: &str) -> Result<Self>

Creates a new file in read-write mode; error if the file exists.

This function will create a file if it does not exist, or return an error if it does. This way, if the call succeeds, the file returned is guaranteed to be new.

pub fn open(path: &str) -> Result<Self>

Attempts to open a file in read-write mode.

pub fn metadata(&self) -> Result<Metadata>

Trait Implementations

impl Debug for File

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

Formats the value using the given formatter.

impl Drop for File

fn drop(&mut self)

Executes the destructor for this type.

impl Read for File

fn read(&mut self, buf: &mut [u8]) -> Result<usize>

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>

Read all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize>

Read all bytes until EOF in this source, appending them to buf.

impl Write for File

fn write(&mut self, buf: &[u8]) -> Result<usize>

fn write_all(&mut self, buf: &[u8]) -> Result<()>

Attempts to write an entire buffer into this writer.

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>

Writes a formatted string into this writer, returning any error encountered.