Struct predicates::constant::BooleanPredicate [−][src]
Predicate that always returns a constant (boolean) result.
This is created by the predicate::always
and predicate::never
functions.
Trait Implementations
impl Clone for BooleanPredicate
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fn clone(&self) -> BooleanPredicate
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pub fn clone_from(&mut self, source: &Self)
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impl Copy for BooleanPredicate
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impl Debug for BooleanPredicate
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impl Display for BooleanPredicate
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impl Eq for BooleanPredicate
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impl PartialEq<BooleanPredicate> for BooleanPredicate
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fn eq(&self, other: &BooleanPredicate) -> bool
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fn ne(&self, other: &BooleanPredicate) -> bool
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impl<Item: ?Sized> Predicate<Item> for BooleanPredicate
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fn eval(&self, _variable: &Item) -> bool
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fn find_case<'a>(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>
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impl PredicateReflection for BooleanPredicate
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fn parameters<'a>(&'a self) -> Box<dyn Iterator<Item = Parameter<'a>> + 'a>
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pub fn children(&'a self) -> Box<dyn Iterator<Item = Child<'a>> + 'a, Global>
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impl StructuralEq for BooleanPredicate
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impl StructuralPartialEq for BooleanPredicate
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Auto Trait Implementations
impl RefUnwindSafe for BooleanPredicate
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impl Send for BooleanPredicate
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impl Sync for BooleanPredicate
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impl Unpin for BooleanPredicate
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impl UnwindSafe for BooleanPredicate
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<P, Item> PredicateBooleanExt<Item> for P where
Item: ?Sized,
P: Predicate<Item>,
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Item: ?Sized,
P: Predicate<Item>,
fn and<B>(self, other: B) -> AndPredicate<Self, B, Item> where
B: Predicate<Item>,
Self: Sized,
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B: Predicate<Item>,
Self: Sized,
fn or<B>(self, other: B) -> OrPredicate<Self, B, Item> where
B: Predicate<Item>,
Self: Sized,
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B: Predicate<Item>,
Self: Sized,
fn not(self) -> NotPredicate<Self, Item> where
Self: Sized,
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Self: Sized,
impl<P, Item> PredicateNameExt<Item> for P where
Item: ?Sized,
P: Predicate<Item>,
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Item: ?Sized,
P: Predicate<Item>,
fn name(self, name: &'static str) -> NamePredicate<Self, Item> where
Self: Sized,
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Self: Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,