Struct memchr::memmem::FinderBuilder

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

A builder for constructing non-default forward or reverse memmem finders.

A builder is primarily useful for configuring a substring searcher. Currently, the only configuration exposed is the ability to disable heuristic prefilters used to speed up certain searches.

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impl FinderBuilder

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pub fn new() -> FinderBuilder

Create a new finder builder with default settings.

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pub fn build_forward<'n, B: ?Sized + AsRef<[u8]>>( &self, needle: &'n B, ) -> Finder<'n>

Build a forward finder using the given needle from the current settings.

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pub fn build_forward_with_ranker<'n, R: HeuristicFrequencyRank, B: ?Sized + AsRef<[u8]>>( &self, ranker: R, needle: &'n B, ) -> Finder<'n>

Build a forward finder using the given needle and a custom heuristic for determining the frequency of a given byte in the dataset. See HeuristicFrequencyRank for more details.

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pub fn build_reverse<'n, B: ?Sized + AsRef<[u8]>>( &self, needle: &'n B, ) -> FinderRev<'n>

Build a reverse finder using the given needle from the current settings.

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pub fn prefilter(&mut self, prefilter: Prefilter) -> &mut FinderBuilder

Configure the prefilter setting for the finder.

See the documentation for Prefilter for more discussion on why you might want to configure this.

Trait Implementations§

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impl Clone for FinderBuilder

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fn clone(&self) -> FinderBuilder

Returns a copy 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 Debug for FinderBuilder

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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 FinderBuilder

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fn default() -> FinderBuilder

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.