Struct ValuePredicate

pub struct ValuePredicate<T: ?Sized, P> { /* private fields */ }

Predicate for TracedValues returned by the value() function.

Trait Implementations

impl<T: ?Sized, P: Clone> Clone for ValuePredicate<T, P>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + ?Sized, P: Debug> Debug for ValuePredicate<T, P>

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

Formats the value using the given formatter.

impl<T, P> Display for ValuePredicate<T, P>

where T: for<'a> FromTracedValue<'a> + ?Sized, P: Predicate<T>,

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

Formats the value using the given formatter.

impl<T, P> IntoFieldPredicate for ValuePredicate<T, P>

where T: for<'a> FromTracedValue<'a> + ?Sized, P: Predicate<T>,

type Predicate = ValuePredicate<T, P>

Predicate output of the conversion. The exact type should be considered an implementation detail and should not be relied upon.

fn into_predicate(self) -> Self::Predicate

Performs the conversion.

impl<T: ?Sized, P: PartialEq> PartialEq for ValuePredicate<T, P>

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<T, P> Predicate<TracedValue> for ValuePredicate<T, P>

where T: for<'a> FromTracedValue<'a> + ?Sized, P: Predicate<T>,

fn eval(&self, variable: &TracedValue) -> bool

Execute this Predicate against variable, returning the resulting boolean.

fn find_case(&self, expected: bool, variable: &TracedValue) -> Option<Case<'_>>

Find a case that proves this predicate as expected when run against variable.

impl<T, P> PredicateReflection for ValuePredicate<T, P>

where T: for<'a> FromTracedValue<'a> + ?Sized, P: Predicate<T>,

fn parameters<'a>(&'a self) -> Box<dyn Iterator<Item = Parameter<'a>> + 'a>

Parameters of the current Predicate.

fn children<'a>(&'a self) -> Box<dyn Iterator<Item = Child<'a>> + 'a>

Nested Predicates of the current Predicate.

impl<T: ?Sized, P: Copy> Copy for ValuePredicate<T, P>