pub struct DepthLimitedRead<R>where
    R: Read,{
    pub inner: R,
    /* private fields */
}
Expand description

DepthLimitedRead wraps a Read object and enforces a depth limit to recursive read operations. It maintains a depth_remaining state tracking remaining allowed recursion depth.

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§inner: R

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impl<R> DepthLimitedRead<R>where R: Read,

pub fn new(inner: R, depth_limit: u32) -> DepthLimitedRead<R>

Constructs a new DepthLimitedRead.

  • inner: The object implementing the Read trait.
  • depth_limit: The maximum allowed recursion depth.

Trait Implementations§

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impl<R> DepthLimiter for DepthLimitedRead<R>where R: Read,

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fn enter(&mut self) -> Result<(), Error>

Decrements the depth_remaining. If the depth_remaining is already zero, an error is returned indicating that the maximum depth limit has been exceeded.

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fn leave(&mut self) -> Result<(), Error>

Increments the depth. leave should be called in tandem with enter such that the depth doesn’t exceed the initial depth limit.

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type DepthLimiterError = Error

A general error type for any type implementing, or an operation under the guard of DepthLimiter. It must at least include the error case where the depth limit is exceeded which is returned from enter.
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fn with_limited_depth<T, F>( &mut self, f: F ) -> Result<T, Self::DepthLimiterError>where F: FnOnce(&mut Self) -> Result<T, Self::DepthLimiterError>,

Wraps a given function f with depth limiting guards. It triggers an enter before, and a leave after the execution of f. Read more
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impl<R> Read for DepthLimitedRead<R>where R: Read,

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fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>

Forwards the read operation to the wrapped object.

1.36.0 · source§

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
1.0.0 · source§

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 more
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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 more
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fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill 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)
Read the exact number of bytes required to fill cursor. Read more
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fn by_ref(&mut self) -> &mut Selfwhere 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
1.0.0 · source§

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<R> RefUnwindSafe for DepthLimitedRead<R>where R: RefUnwindSafe,

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impl<R> Send for DepthLimitedRead<R>where R: Send,

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impl<R> Sync for DepthLimitedRead<R>where R: Sync,

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impl<R> Unpin for DepthLimitedRead<R>where R: Unpin,

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impl<R> UnwindSafe for DepthLimitedRead<R>where R: UnwindSafe,

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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, C> Compare<&T> for Cwhere C: Compare<T>,

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type Error = <C as Compare<T>>::Error

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fn compare(&self, a: &&T, b: &&T) -> Result<Ordering, <C as Compare<&T>>::Error>

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impl<T, U, E, C> Compare<(T, U)> for Cwhere C: Compare<T, Error = E, Error = E> + Compare<U>,

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type Error = E

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fn compare( &self, a: &(T, U), b: &(T, U) ) -> Result<Ordering, <C as Compare<(T, U)>>::Error>

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impl<T, U, V, E, C> Compare<(T, U, V)> for Cwhere C: Compare<T, Error = E, Error = E, Error = E> + Compare<U> + Compare<V>,

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type Error = E

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fn compare( &self, a: &(T, U, V), b: &(T, U, V) ) -> Result<Ordering, <C as Compare<(T, U, V)>>::Error>

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impl<T, U, V, W, E, C> Compare<(T, U, V, W)> for Cwhere C: Compare<T, Error = E, Error = E, Error = E, Error = E> + Compare<U> + Compare<V> + Compare<W>,

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type Error = E

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fn compare( &self, a: &(T, U, V, W), b: &(T, U, V, W) ) -> Result<Ordering, <C as Compare<(T, U, V, W)>>::Error>

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impl<T, U, V, W, X, E, C> Compare<(T, U, V, W, X)> for Cwhere C: Compare<T, Error = E, Error = E, Error = E, Error = E, Error = E> + Compare<U> + Compare<V> + Compare<W> + Compare<X>,

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type Error = E

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fn compare( &self, a: &(T, U, V, W, X), b: &(T, U, V, W, X) ) -> Result<Ordering, <C as Compare<(T, U, V, W, X)>>::Error>

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impl<T, C> Compare<Box<T, Global>> for Cwhere C: Compare<T>,

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type Error = <C as Compare<T>>::Error

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fn compare( &self, a: &Box<T, Global>, b: &Box<T, Global> ) -> Result<Ordering, <C as Compare<Box<T, Global>>>::Error>

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impl<T, C> Compare<Option<T>> for Cwhere C: Compare<T>,

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type Error = <C as Compare<T>>::Error

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fn compare( &self, a: &Option<T>, b: &Option<T> ) -> Result<Ordering, <C as Compare<Option<T>>>::Error>

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impl<T, C> Compare<Rc<T, Global>> for Cwhere C: Compare<T>,

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type Error = <C as Compare<T>>::Error

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fn compare( &self, a: &Rc<T, Global>, b: &Rc<T, Global> ) -> Result<Ordering, <C as Compare<Rc<T, Global>>>::Error>

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impl<T, C> Compare<Vec<T, Global>> for Cwhere C: Compare<T>,

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type Error = <C as Compare<T>>::Error

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fn compare( &self, a: &Vec<T, Global>, b: &Vec<T, Global> ) -> Result<Ordering, <C as Compare<Vec<T, Global>>>::Error>

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impl<T> Downcast for Twhere T: Any,

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fn into_any(self: Box<T, Global>) -> Box<dyn Any, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T, Global>) -> Rc<dyn Any, Global>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for Twhere T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T, Global>) -> Arc<dyn Any + Send + Sync, Global>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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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 Twhere 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<E, T, U> IntoVal<E, T> for Uwhere E: Env, T: FromVal<E, U>,

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fn into_val(&self, e: &E) -> T

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impl<T> Read for Twhere T: Read,

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fn read(&mut self, buffer: &mut [u8]) -> Result<usize, ReadError>

Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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.
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impl<E, T, U> TryIntoVal<E, T> for Uwhere E: Env, T: TryFromVal<E, U>,

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type Error = <T as TryFromVal<E, U>>::Error

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fn try_into_val(&self, env: &E) -> Result<T, <U as TryIntoVal<E, T>>::Error>

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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V