Struct frunk_laws::wrapper::Wrapper

pub struct Wrapper<A>(/* private fields */);

The Wrapper NewType. Used for writing implementations of traits that we don’t own for type we don’t own.

Avoids the orphan typeclass instances problem in Haskell.

Trait Implementations

impl<A: Arbitrary> Arbitrary for Wrapper<All<A>>

fn arbitrary(g: &mut Gen) -> Self

Return an arbitrary value.

fn shrink(&self) -> Box<dyn Iterator<Item = Self>>

Return an iterator of values that are smaller than itself.

impl<A: Arbitrary> Arbitrary for Wrapper<Any<A>>

fn arbitrary(g: &mut Gen) -> Self

Return an arbitrary value.

fn shrink(&self) -> Box<dyn Iterator<Item = Self>>

Return an iterator of values that are smaller than itself.

impl<A: Arbitrary + Ord + Clone> Arbitrary for Wrapper<Max<A>>

fn arbitrary(g: &mut Gen) -> Self

Return an arbitrary value.

fn shrink(&self) -> Box<dyn Iterator<Item = Self>>

Return an iterator of values that are smaller than itself.

impl<A: Arbitrary + Ord + Clone> Arbitrary for Wrapper<Min<A>>

fn arbitrary(g: &mut Gen) -> Self

Return an arbitrary value.

fn shrink(&self) -> Box<dyn Iterator<Item = Self>>

Return an iterator of values that are smaller than itself.

impl<A: Arbitrary> Arbitrary for Wrapper<Product<A>>

fn arbitrary(g: &mut Gen) -> Self

Return an arbitrary value.

fn shrink(&self) -> Box<dyn Iterator<Item = Self>>

Return an iterator of values that are smaller than itself.

impl<A: Clone> Clone for Wrapper<A>

fn clone(&self) -> Wrapper<A>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<A: Debug> Debug for Wrapper<A>

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

Formats the value using the given formatter.

impl<A: Hash> Hash for Wrapper<A>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<A: Monoid> Monoid for Wrapper<A>

fn empty() -> Self

For a given Monoid, returns its empty/zero value

impl<A: PartialEq> PartialEq for Wrapper<A>

fn eq(&self, other: &Wrapper<A>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A: PartialOrd> PartialOrd for Wrapper<A>

fn partial_cmp(&self, other: &Wrapper<A>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<A: Semigroup> Semigroup for Wrapper<A>

fn combine(&self, other: &Self) -> Self

Associative operation taking which combines two values.

impl<A: Eq> Eq for Wrapper<A>

impl<A> StructuralPartialEq for Wrapper<A>