Enum FileMode 

pub enum FileMode {
    Read,
    Write,
    Append,
    ReadWrite,
}

The mode for opening a file.

Variants

Read

Open for reading (file must exist).

Write

Open for writing (creates or truncates).

Append

Open for appending (creates if doesn’t exist).

ReadWrite

Open for reading and writing.

Implementations

impl FileMode

pub fn parse(s: &str) -> Option<Self>

Parse a mode string (like Python’s open modes).

pub fn is_read(&self) -> bool

Returns true if this mode is for reading.

pub fn is_write(&self) -> bool

Returns true if this mode is for writing.

Trait Implementations

impl Clone for FileMode

fn clone(&self) -> FileMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FileMode

impl Debug for FileMode

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

Formats the value using the given formatter.

impl Default for FileMode

fn default() -> FileMode

Returns the “default value” for a type.

impl Eq for FileMode

impl PartialEq for FileMode

fn eq(&self, other: &FileMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for FileMode