Decoder

Struct Decoder 

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pub struct Decoder<'i> { /* private fields */ }
Expand description

Buffered PEM decoder.

Stateful buffered decoder type which decodes an input PEM document according to RFC 7468’s “Strict” grammar.

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impl<'i> Decoder<'i>

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pub fn new(pem: &'i [u8]) -> Result<Self>

Create a new PEM Decoder with the default options.

Uses the default 64-character line wrapping.

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pub fn new_wrapped(pem: &'i [u8], line_width: usize) -> Result<Self>

Create a new PEM Decoder which wraps at the given line width.

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pub fn type_label(&self) -> &'i str

Get the PEM type label for the input document.

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pub fn decode<'o>(&mut self, buf: &'o mut [u8]) -> Result<&'o [u8]>

Decode data into the provided output buffer.

There must be at least as much remaining Base64 input to be decoded in order to completely fill buf.

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pub fn decode_to_end<'o>(&mut self, buf: &'o mut Vec<u8>) -> Result<&'o [u8]>

Available on crate feature alloc only.

Decode all of the remaining data in the input buffer into buf.

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pub fn remaining_len(&self) -> usize

Get the decoded length of the remaining PEM data after Base64 decoding.

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pub fn is_finished(&self) -> bool

Are we finished decoding the PEM input?

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impl<'i> Clone for Decoder<'i>

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fn clone(&self) -> Decoder<'i>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'i> From<Decoder<'i>> for Base64Decoder<'i>

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fn from(decoder: Decoder<'i>) -> Base64Decoder<'i>

Converts to this type from the input type.
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impl<'i> Read for Decoder<'i>

Available on crate feature std only.
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fn read(&mut self, buf: &mut [u8]) -> Result<usize>

Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
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fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>

Reads all bytes until EOF in this source, placing them into buf. Read more
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fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>

Reads the exact number of bytes required to fill buf. Read more
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fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers. Read more
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fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Reader has an efficient read_vectored implementation. Read more
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fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Reads all bytes until EOF in this source, appending them to buf. Read more
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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
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fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)
Reads the exact number of bytes required to fill cursor. Read more
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fn by_ref(&mut self) -> &mut Self
where Self: Sized,

Creates a “by reference” adaptor for this instance of Read. Read more
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fn bytes(self) -> Bytes<Self>
where Self: Sized,

Transforms this Read instance to an Iterator over its bytes. Read more
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fn chain<R>(self, next: R) -> Chain<Self, R>
where R: Read, Self: Sized,

Creates an adapter which will chain this stream with another. Read more
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fn take(self, limit: u64) -> Take<Self>
where Self: Sized,

Creates an adapter which will read at most limit bytes from it. Read more

Auto Trait Implementations§

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impl<'i> Freeze for Decoder<'i>

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impl<'i> RefUnwindSafe for Decoder<'i>

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impl<'i> Send for Decoder<'i>

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impl<'i> Sync for Decoder<'i>

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impl<'i> Unpin for Decoder<'i>

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impl<'i> UnwindSafe for Decoder<'i>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 96 bytes