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StreamingValidator

Struct StreamingValidator 

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pub struct StreamingValidator { /* private fields */ }
Expand description

Streamender UTF-8-Validator fuer fragmentierte Text-Frames.

WebSocket-Spec §6.2 kann Text-Frames in mehrere DATA-Frames (FIN=0) aufteilen — der UTF-8-Stream darf dabei mitten in einer multi-byte-Sequenz unterbrochen werden. Dieser Validator pflegt einen kleinen internen Puffer fuer das angefangene Codepoint.

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impl StreamingValidator

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pub fn new() -> Self

Konstruktor.

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pub fn feed(&mut self, chunk: &[u8]) -> Result<(), Utf8Error>

Ein Chunk Bytes pruefen. Liefert Ok(()) wenn (zusammen mit vorigem State) alles bisher valid ist.

§Errors

Siehe Utf8Error.

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pub fn finalize(self) -> Result<(), Utf8Error>

true wenn der Stream auf Codepoint-Grenze endet (kein pending byte). Ein Text-Frame mit FIN=1 MUSS diesen Zustand erreichen — sonst Truncated-Fehler.

§Errors

Utf8Error::Truncated wenn pending Bytes uebrig sind.

Trait Implementations§

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impl Debug for StreamingValidator

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

Formats the value using the given formatter. Read more
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impl Default for StreamingValidator

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fn default() -> StreamingValidator

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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> 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, 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.