Struct predicates::iter::HashableInPredicate [−][src]
Predicate that returns true
if variable
is a member of the pre-defined
HashSet
, otherwise returns false
.
Note that this implementation requires Item
to be Hash + Eq
. The
InPredicate
uses a less efficient search algorithm but only
requires Item
implement PartialEq
. The implementation-specific
predicates will be deprecated when Rust supports trait specialization.
This is created by the predicate::in_hash
function.
Trait Implementations
impl<T: Debug> Debug for HashableInPredicate<T> where
T: Hash + Eq + Debug,
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impl<T: Debug> Debug for HashableInPredicate<T> where
T: Hash + Eq + Debug,
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<T: Clone> Clone for HashableInPredicate<T> where
T: Hash + Eq + Debug,
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impl<T: Clone> Clone for HashableInPredicate<T> where
T: Hash + Eq + Debug,
fn clone(&self) -> HashableInPredicate<T>
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fn clone(&self) -> HashableInPredicate<T>
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl<T: PartialEq> PartialEq for HashableInPredicate<T> where
T: Hash + Eq + Debug,
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impl<T: PartialEq> PartialEq for HashableInPredicate<T> where
T: Hash + Eq + Debug,
fn eq(&self, other: &HashableInPredicate<T>) -> bool
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fn eq(&self, other: &HashableInPredicate<T>) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &HashableInPredicate<T>) -> bool
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fn ne(&self, other: &HashableInPredicate<T>) -> bool
This method tests for !=
.
impl<T: Eq> Eq for HashableInPredicate<T> where
T: Hash + Eq + Debug,
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impl<T: Eq> Eq for HashableInPredicate<T> where
T: Hash + Eq + Debug,
impl<T> Predicate<T> for HashableInPredicate<T> where
T: Hash + Eq + Debug,
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impl<T> Predicate<T> for HashableInPredicate<T> where
T: Hash + Eq + Debug,
fn eval(&self, variable: &T) -> bool
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fn eval(&self, variable: &T) -> bool
Execute this Predicate
against variable
, returning the resulting boolean. Read more
fn find_case<'a>(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>
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fn find_case<'a>(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>
Find a case that proves this predicate as expected
when run against variable
.
impl<'a, T: ?Sized> Predicate<T> for HashableInPredicate<&'a T> where
T: Hash + Eq + Debug,
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impl<'a, T: ?Sized> Predicate<T> for HashableInPredicate<&'a T> where
T: Hash + Eq + Debug,
fn eval(&self, variable: &T) -> bool
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fn eval(&self, variable: &T) -> bool
Execute this Predicate
against variable
, returning the resulting boolean. Read more
fn find_case<'b>(&'b self, expected: bool, variable: &T) -> Option<Case<'b>>
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fn find_case<'b>(&'b self, expected: bool, variable: &T) -> Option<Case<'b>>
Find a case that proves this predicate as expected
when run against variable
.
impl<T> PredicateReflection for HashableInPredicate<T> where
T: Hash + Eq + Debug,
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impl<T> PredicateReflection for HashableInPredicate<T> where
T: Hash + Eq + Debug,
ⓘImportant traits for Box<R>fn parameters<'a>(&'a self) -> Box<Iterator<Item = Parameter<'a>> + 'a>
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fn parameters<'a>(&'a self) -> Box<Iterator<Item = Parameter<'a>> + 'a>
Parameters of the current Predicate
.
ⓘImportant traits for Box<R>fn children(&'a self) -> Box<Iterator<Item = Child<'a>> + 'a>
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fn children(&'a self) -> Box<Iterator<Item = Child<'a>> + 'a>
Nested Predicate
s of the current Predicate
.
impl<T> Display for HashableInPredicate<T> where
T: Hash + Eq + Debug,
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impl<T> Display for HashableInPredicate<T> where
T: Hash + Eq + Debug,
Auto Trait Implementations
impl<T> Send for HashableInPredicate<T> where
T: Send,
impl<T> Send for HashableInPredicate<T> where
T: Send,
impl<T> Sync for HashableInPredicate<T> where
T: Sync,
impl<T> Sync for HashableInPredicate<T> where
T: Sync,