pub struct Index(_);
Expand description

Wrapper for proptest’s [Index][proptest::sample::Index] that allows AsRef to work.

There is no blanket impl<T> AsRef<T> for T, so &[PropIndex] doesn’t work with &[impl AsRef<PropIndex>] (unless an impl gets added upstream). Index does.

Methods from Deref<Target = PropIndex>§

pub fn index(&self, size: usize) -> usize

Return the real index that would be used to index a collection of size size.

Panics

Panics if size == 0.

pub fn get<T, 'a>(&self, slice: &'a [T]) -> &'a T

Return a reference to the element in slice that this Index refers to.

A shortcut for &slice[index.index(slice.len())].

pub fn get_mut<T, 'a>(&self, slice: &'a mut [T]) -> &'a mut T

Return a mutable reference to the element in slice that this Index refers to.

A shortcut for &mut slice[index.index(slice.len())].

Trait Implementations§

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impl Arbitrary for Index

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type Parameters = <Index as Arbitrary>::Parameters

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.
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type Strategy = Map<<Index as Arbitrary>::Strategy, fn(_: Index) -> Index>

The type of Strategy used to generate values of type Self.
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fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args. Read more
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fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). Read more
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impl AsRef<Index> for Index

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fn as_ref(&self) -> &PropIndex

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for Index

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fn clone(&self) -> Index

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 Index

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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 Deref for Index

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type Target = Index

The resulting type after dereferencing.
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fn deref(&self) -> &PropIndex

Dereferences the value.
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impl Copy for Index

Auto Trait Implementations§

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impl RefUnwindSafe for Index

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impl Send for Index

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impl Sync for Index

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impl Unpin for Index

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impl UnwindSafe for Index

Blanket Implementations§

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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,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source§

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> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for Twhere 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 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.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V