Struct holochain::prelude::kitsune_p2p::dependencies::kitsune_p2p_types::dependencies::lair_keystore_api::dependencies::base64::read::DecoderReader
source · pub struct DecoderReader<'a, R>where
R: 'a + Read,{ /* private fields */ }
Expand description
A Read
implementation that decodes base64 data read from an underlying reader.
Examples
use std::io::Read;
use std::io::Cursor;
// use a cursor as the simplest possible `Read` -- in real code this is probably a file, etc.
let mut wrapped_reader = Cursor::new(b"YXNkZg==");
let mut decoder = base64::read::DecoderReader::new(
&mut wrapped_reader, base64::STANDARD);
// handle errors as you normally would
let mut result = Vec::new();
decoder.read_to_end(&mut result).unwrap();
assert_eq!(b"asdf", &result[..]);
Implementations§
source§impl<'a, R> DecoderReader<'a, R>where
R: Read,
impl<'a, R> DecoderReader<'a, R>where R: Read,
Trait Implementations§
source§impl<'a, R> Debug for DecoderReader<'a, R>where
R: Read,
impl<'a, R> Debug for DecoderReader<'a, R>where R: Read,
source§impl<'a, R> Read for DecoderReader<'a, R>where
R: Read,
impl<'a, R> Read for DecoderReader<'a, R>where R: Read,
source§fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>
fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>
Decode input from the wrapped reader.
Under non-error circumstances, this returns Ok
with the value being the number of bytes
written in buf
.
Where possible, this function buffers base64 to minimize the number of read() calls to the delegate reader.
Errors
Any errors emitted by the delegate reader are returned. Decoding errors due to invalid
base64 are also possible, and will have io::ErrorKind::InvalidData
.
1.36.0 · source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
Like
read
, except that it reads into a slice of buffers. Read moresource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)1.0.0 · source§fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
Read all bytes until EOF in this source, placing them into
buf
. Read more1.0.0 · source§fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
Read all bytes until EOF in this source, appending them to
buf
. Read more1.6.0 · source§fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
Read the exact number of bytes required to fill
buf
. Read moresource§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Pull some bytes from this source into the specified buffer. Read more
source§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Read the exact number of bytes required to fill
cursor
. Read more1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere Self: Sized,
Creates a “by reference” adaptor for this instance of
Read
. Read moreAuto Trait Implementations§
impl<'a, R> RefUnwindSafe for DecoderReader<'a, R>where R: RefUnwindSafe,
impl<'a, R> Send for DecoderReader<'a, R>where R: Send,
impl<'a, R> Sync for DecoderReader<'a, R>where R: Sync,
impl<'a, R> Unpin for DecoderReader<'a, R>
impl<'a, R> !UnwindSafe for DecoderReader<'a, R>
Blanket Implementations§
§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,
§fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>
fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>
Deserializes using the given deserializer
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<R> ReadBytesExt for Rwhere
R: Read + ?Sized,
impl<R> ReadBytesExt for Rwhere R: Read + ?Sized,
source§fn read_u8(&mut self) -> Result<u8, Error>
fn read_u8(&mut self) -> Result<u8, Error>
Reads an unsigned 8 bit integer from the underlying reader. Read more
source§fn read_i8(&mut self) -> Result<i8, Error>
fn read_i8(&mut self) -> Result<i8, Error>
Reads a signed 8 bit integer from the underlying reader. Read more
source§fn read_u16<T>(&mut self) -> Result<u16, Error>where
T: ByteOrder,
fn read_u16<T>(&mut self) -> Result<u16, Error>where T: ByteOrder,
Reads an unsigned 16 bit integer from the underlying reader. Read more
source§fn read_i16<T>(&mut self) -> Result<i16, Error>where
T: ByteOrder,
fn read_i16<T>(&mut self) -> Result<i16, Error>where T: ByteOrder,
Reads a signed 16 bit integer from the underlying reader. Read more
source§fn read_u24<T>(&mut self) -> Result<u32, Error>where
T: ByteOrder,
fn read_u24<T>(&mut self) -> Result<u32, Error>where T: ByteOrder,
Reads an unsigned 24 bit integer from the underlying reader. Read more
source§fn read_i24<T>(&mut self) -> Result<i32, Error>where
T: ByteOrder,
fn read_i24<T>(&mut self) -> Result<i32, Error>where T: ByteOrder,
Reads a signed 24 bit integer from the underlying reader. Read more
source§fn read_u32<T>(&mut self) -> Result<u32, Error>where
T: ByteOrder,
fn read_u32<T>(&mut self) -> Result<u32, Error>where T: ByteOrder,
Reads an unsigned 32 bit integer from the underlying reader. Read more
source§fn read_i32<T>(&mut self) -> Result<i32, Error>where
T: ByteOrder,
fn read_i32<T>(&mut self) -> Result<i32, Error>where T: ByteOrder,
Reads a signed 32 bit integer from the underlying reader. Read more
source§fn read_u48<T>(&mut self) -> Result<u64, Error>where
T: ByteOrder,
fn read_u48<T>(&mut self) -> Result<u64, Error>where T: ByteOrder,
Reads an unsigned 48 bit integer from the underlying reader. Read more
source§fn read_i48<T>(&mut self) -> Result<i64, Error>where
T: ByteOrder,
fn read_i48<T>(&mut self) -> Result<i64, Error>where T: ByteOrder,
Reads a signed 48 bit integer from the underlying reader. Read more
source§fn read_u64<T>(&mut self) -> Result<u64, Error>where
T: ByteOrder,
fn read_u64<T>(&mut self) -> Result<u64, Error>where T: ByteOrder,
Reads an unsigned 64 bit integer from the underlying reader. Read more
source§fn read_i64<T>(&mut self) -> Result<i64, Error>where
T: ByteOrder,
fn read_i64<T>(&mut self) -> Result<i64, Error>where T: ByteOrder,
Reads a signed 64 bit integer from the underlying reader. Read more
source§fn read_u128<T>(&mut self) -> Result<u128, Error>where
T: ByteOrder,
fn read_u128<T>(&mut self) -> Result<u128, Error>where T: ByteOrder,
Reads an unsigned 128 bit integer from the underlying reader. Read more
source§fn read_i128<T>(&mut self) -> Result<i128, Error>where
T: ByteOrder,
fn read_i128<T>(&mut self) -> Result<i128, Error>where T: ByteOrder,
Reads a signed 128 bit integer from the underlying reader. Read more
source§fn read_uint<T>(&mut self, nbytes: usize) -> Result<u64, Error>where
T: ByteOrder,
fn read_uint<T>(&mut self, nbytes: usize) -> Result<u64, Error>where T: ByteOrder,
Reads an unsigned n-bytes integer from the underlying reader. Read more
source§fn read_int<T>(&mut self, nbytes: usize) -> Result<i64, Error>where
T: ByteOrder,
fn read_int<T>(&mut self, nbytes: usize) -> Result<i64, Error>where T: ByteOrder,
Reads a signed n-bytes integer from the underlying reader. Read more
source§fn read_uint128<T>(&mut self, nbytes: usize) -> Result<u128, Error>where
T: ByteOrder,
fn read_uint128<T>(&mut self, nbytes: usize) -> Result<u128, Error>where T: ByteOrder,
Reads an unsigned n-bytes integer from the underlying reader.
source§fn read_int128<T>(&mut self, nbytes: usize) -> Result<i128, Error>where
T: ByteOrder,
fn read_int128<T>(&mut self, nbytes: usize) -> Result<i128, Error>where T: ByteOrder,
Reads a signed n-bytes integer from the underlying reader.
source§fn read_f32<T>(&mut self) -> Result<f32, Error>where
T: ByteOrder,
fn read_f32<T>(&mut self) -> Result<f32, Error>where T: ByteOrder,
Reads a IEEE754 single-precision (4 bytes) floating point number from
the underlying reader. Read more
source§fn read_f64<T>(&mut self) -> Result<f64, Error>where
T: ByteOrder,
fn read_f64<T>(&mut self) -> Result<f64, Error>where T: ByteOrder,
Reads a IEEE754 double-precision (8 bytes) floating point number from
the underlying reader. Read more
source§fn read_u16_into<T>(&mut self, dst: &mut [u16]) -> Result<(), Error>where
T: ByteOrder,
fn read_u16_into<T>(&mut self, dst: &mut [u16]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of unsigned 16 bit integers from the underlying
reader. Read more
source§fn read_u32_into<T>(&mut self, dst: &mut [u32]) -> Result<(), Error>where
T: ByteOrder,
fn read_u32_into<T>(&mut self, dst: &mut [u32]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of unsigned 32 bit integers from the underlying
reader. Read more
source§fn read_u64_into<T>(&mut self, dst: &mut [u64]) -> Result<(), Error>where
T: ByteOrder,
fn read_u64_into<T>(&mut self, dst: &mut [u64]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of unsigned 64 bit integers from the underlying
reader. Read more
source§fn read_u128_into<T>(&mut self, dst: &mut [u128]) -> Result<(), Error>where
T: ByteOrder,
fn read_u128_into<T>(&mut self, dst: &mut [u128]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of unsigned 128 bit integers from the underlying
reader. Read more
source§fn read_i8_into(&mut self, dst: &mut [i8]) -> Result<(), Error>
fn read_i8_into(&mut self, dst: &mut [i8]) -> Result<(), Error>
Reads a sequence of signed 8 bit integers from the underlying reader. Read more
source§fn read_i16_into<T>(&mut self, dst: &mut [i16]) -> Result<(), Error>where
T: ByteOrder,
fn read_i16_into<T>(&mut self, dst: &mut [i16]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of signed 16 bit integers from the underlying
reader. Read more
source§fn read_i32_into<T>(&mut self, dst: &mut [i32]) -> Result<(), Error>where
T: ByteOrder,
fn read_i32_into<T>(&mut self, dst: &mut [i32]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of signed 32 bit integers from the underlying
reader. Read more
source§fn read_i64_into<T>(&mut self, dst: &mut [i64]) -> Result<(), Error>where
T: ByteOrder,
fn read_i64_into<T>(&mut self, dst: &mut [i64]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of signed 64 bit integers from the underlying
reader. Read more
source§fn read_i128_into<T>(&mut self, dst: &mut [i128]) -> Result<(), Error>where
T: ByteOrder,
fn read_i128_into<T>(&mut self, dst: &mut [i128]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of signed 128 bit integers from the underlying
reader. Read more
source§fn read_f32_into<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where
T: ByteOrder,
fn read_f32_into<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where T: ByteOrder,
Reads a sequence of IEEE754 single-precision (4 bytes) floating
point numbers from the underlying reader. Read more
source§fn read_f32_into_unchecked<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where
T: ByteOrder,
fn read_f32_into_unchecked<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where T: ByteOrder,
👎Deprecated since 1.2.0: please use
read_f32_into
insteadDEPRECATED. Read more
§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere SS: SubsetOf<SP>,
§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self
from the equivalent element of its
superset. Read more§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self
is actually part of its subset T
(and can be converted to it).§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset
but without any property checks. Always succeeds.§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self
to the equivalent element of its superset.§impl<T> Upcastable for Twhere
T: Any + Send + Sync + 'static,
impl<T> Upcastable for Twhere T: Any + Send + Sync + 'static,
§fn upcast_any_ref(&self) -> &(dyn Any + 'static)
fn upcast_any_ref(&self) -> &(dyn Any + 'static)
upcast ref
§fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
upcast mut ref