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SequenceRequestHandler

Struct SequenceRequestHandler 

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pub struct SequenceRequestHandler { /* private fields */ }
Available on crate feature recognize_text only.
Expand description

Safe wrapper around a retained VNSequenceRequestHandler.

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impl SequenceRequestHandler

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pub fn new() -> Result<Self, VisionError>

Create a fresh sequence handler.

§Errors

Returns VisionError if the Swift bridge fails to allocate the backing handler.

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pub fn perform( &mut self, image_path: impl AsRef<Path>, request: &Request, ) -> Result<Vec<RecognizedTextObservation>, VisionError>

Perform request on image_path, preserving Vision’s sequence state across calls.

§Errors

Returns VisionError if the path is invalid, the image cannot be loaded, or Vision rejects the request.

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impl Drop for SequenceRequestHandler

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

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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.