[−][src]Enum wbuf::InputOutput
Duplex I/O buffer wrapper type. Wraps stdin/stdout, a read/write Cursor, or a readable/writable file buffer.
Variants
File(File)
Methods
impl InputOutput
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ⓘImportant traits for InputOutputpub fn stdio() -> InputOutput
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ⓘImportant traits for InputOutput
Returns an InputOutput wrapping stdin and stdout.
ⓘImportant traits for InputOutputpub fn memory() -> InputOutput
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ⓘImportant traits for InputOutput
Returns an InputOutput wrapping a Cursor.
pub fn file(path: &str) -> Result<InputOutput>
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Returns an InputOutput wrapping a readable and writable file.
pub fn from_arg(arg: Option<&str>) -> Result<InputOutput>
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Returns either a wrapped file buffer, or stdin, depending on the argument passed in.
The function selects the buffer following these rules:
- No value, or the a literal "-" returns stdin.
- Any other value returns a wrapped file buffer. The file is opened with std::fs::OpenOptions, therefore the file is required to exist, and be readable and writable for the operation to succeed.
Trait Implementations
impl Read for InputOutput
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fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>
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Read from the underlying buffer.
fn read_vectored(&mut self, bufs: &mut [IoSliceMut]) -> Result<usize, Error>
1.36.0[src]
unsafe fn initializer(&self) -> Initializer
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fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
1.0.0[src]
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
1.0.0[src]
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
1.6.0[src]
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
fn bytes(self) -> Bytes<Self>
1.0.0[src]
fn chain<R>(self, next: R) -> Chain<Self, R> where
R: Read,
1.0.0[src]
R: Read,
fn take(self, limit: u64) -> Take<Self>
1.0.0[src]
impl Write for InputOutput
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fn write(&mut self, buf: &[u8]) -> Result<usize, Error>
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Writes into the underlying buffer.
fn flush(&mut self) -> Result<(), Error>
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Flushes the underlying buffer.
fn write_vectored(&mut self, bufs: &[IoSlice]) -> Result<usize, Error>
1.36.0[src]
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
1.0.0[src]
fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>
1.0.0[src]
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Auto Trait Implementations
impl Send for InputOutput
impl Sync for InputOutput
impl Unpin for InputOutput
impl UnwindSafe for InputOutput
impl RefUnwindSafe for InputOutput
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,