Struct OpenOptions

#[non_exhaustive]
pub struct OpenOptions {
    pub read: bool,
    pub write: bool,
    pub create: bool,
    pub truncate: bool,
    pub append: bool,
    pub create_new: bool,
    pub mode: Option<u32>,
    pub custom_flags: Option<i32>,
}

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

read: bool

write: bool

create: bool

truncate: bool

append: bool

create_new: bool

mode: Option<u32>

Unix only. Ignored on Windows.

custom_flags: Option<i32>

Custom flags to set on Unix or Windows.

On Windows this is a u32, but on Unix it’s an i32.

Note: only provide flags that make sense for the current operating system.

Implementations

impl OpenOptions

pub fn new() -> Self

pub fn new_read() -> Self

pub fn write() -> Self

👎Deprecated: use new_write instead

pub fn new_write() -> Self

pub fn read(&mut self) -> &mut Self

pub fn create(&mut self) -> &mut Self

pub fn truncate(&mut self) -> &mut Self

pub fn append(&mut self) -> &mut Self

pub fn create_new(&mut self) -> &mut Self

pub fn mode(&mut self, mode: u32) -> &mut Self

pub fn custom_flags(&mut self, flags: i32) -> &mut Self

Trait Implementations

impl Clone for OpenOptions

fn clone(&self) -> OpenOptions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for OpenOptions

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

Formats the value using the given formatter.

impl Default for OpenOptions

fn default() -> OpenOptions

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OpenOptions

where OpenOptions: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Copy for OpenOptions