Enum Expression 

pub enum Expression<Field> {
    Field(Field),
    And {
        and: (Box<Self>, Box<Self>),
    },
    Or {
        or: (Box<Self>, Box<Self>),
    },
    Not {
        not: Box<Self>,
    },
    Empty,
}

Variants

Field(Field)

And

Fields

and: (Box<Self>, Box<Self>)

Or

Fields

or: (Box<Self>, Box<Self>)

Not

Fields

not: Box<Self>

Empty

Implementations

impl<Field> Expression<Field>

pub fn evaluate<R, V, E>(&self, resolver: &R) -> Result<V, E>

where R: FieldResolver<V, FieldType = Field, Error = E>, V: BitAndAssign + BitOrAssign + Not<Output = V> + Sizeable,

Trait Implementations

impl<Field: Clone> Clone for Expression<Field>

fn clone(&self) -> Expression<Field>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Field: Debug> Debug for Expression<Field>

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

Formats the value using the given formatter.

impl<Field> Default for Expression<Field>

fn default() -> Self

Returns the “default value” for a type.

impl<'de, Field> Deserialize<'de> for Expression<Field>

where Field: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<Field: Hash> Hash for Expression<Field>

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<Field: PartialEq> PartialEq for Expression<Field>

fn eq(&self, other: &Expression<Field>) -> 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<Field> Serialize for Expression<Field>

where Field: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<Field: Eq> Eq for Expression<Field>

impl<Field> StructuralPartialEq for Expression<Field>