Enum Predicate

pub enum Predicate<_D: Domain = IOValue> {
    Selector(Selector<_D>),
    Not {
        pred: Box<Predicate<_D>>,
    },
    Or {
        preds: Vec<Predicate<_D>>,
    },
    And {
        preds: Vec<Predicate<_D>>,
    },
}

Variants

Selector(Selector<_D>)

Not

Fields

pred: Box<Predicate<_D>>

Or

Fields

preds: Vec<Predicate<_D>>

And

Fields

preds: Vec<Predicate<_D>>

Implementations

impl Predicate

pub fn compile(&self) -> Result<CompiledPredicate, CompilationError>

pub fn exec( &self, ctxt: &mut Context<'_>, value: &IOValue, ) -> Result<bool, CompilationError>

Trait Implementations

impl<_D: Clone + Domain> Clone for Predicate<_D>

fn clone(&self) -> Predicate<_D>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<_D: Debug + Domain> Debug for Predicate<_D>

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

Formats the value using the given formatter.

impl<_D: Domain> Deserialize<_D> for Predicate<_D>

fn deserialize<'de, R: Reader<'de> + ?Sized, Dec: DomainDecode<_D>>( r: &mut R, _dec: &mut Dec, ) -> ReaderResult<Self>

impl<_D: Hash + Domain> Hash for Predicate<_D>

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<_D: Ord + Domain> Ord for Predicate<_D>

fn cmp(&self, other: &Predicate<_D>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<_D: Domain> Parse<_D> for Predicate<_D>

fn parse(value: &Value<_D>) -> ReaderResult<Self>

Decode the given value to produce an instance of Self.

impl<_D: PartialEq + Domain> PartialEq for Predicate<_D>

fn eq(&self, other: &Predicate<_D>) -> 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<_D: PartialOrd + Domain> PartialOrd for Predicate<_D>

fn partial_cmp(&self, other: &Predicate<_D>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<_D: Domain> Unparse<_D> for Predicate<_D>

fn unparse(&self) -> Value<_D>

Encode self into a Value.

impl<_D: Eq + Domain> Eq for Predicate<_D>

impl<_D: Domain> StructuralPartialEq for Predicate<_D>