Enum LogicalExpr

pub enum LogicalExpr {
    Or(Box<LogicalExpr>, Box<LogicalExpr>),
    And(Box<LogicalExpr>, Box<LogicalExpr>),
    Not(Box<LogicalExpr>),
    Comparison(ComparisonExpr),
    Test(TestExpr),
}

Logical expression used in a Filter selector.

Expressions form a tree, where Comparison and Test expressions can be leaves, and boolean combinators (OR, AND, NOT) store their children as Boxes.

Variants

Or(Box<LogicalExpr>, Box<LogicalExpr>)

Logical disjunction of two child expressions.

And(Box<LogicalExpr>, Box<LogicalExpr>)

Logical conjunction of two child expressions.

Not(Box<LogicalExpr>)

Logical negation of a child expression.

Comparison(ComparisonExpr)

Comparison expression – compare single values determined by query or a literal constant.

Test(TestExpr)

Existence test – query and see if any matched nodes exist.

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for LogicalExpr

fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for LogicalExpr

fn clone(&self) -> LogicalExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogicalExpr

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LogicalExpr

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for LogicalExpr

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

Formats the value using the given formatter.

impl From<LogicalExpr> for Selector

fn from(value: LogicalExpr) -> Self

Converts to this type from the input type.

impl From<LogicalExprBuilder> for LogicalExpr

fn from(value: LogicalExprBuilder) -> Self

Converts to this type from the input type.

impl Hash for LogicalExpr

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 PartialEq for LogicalExpr

fn eq(&self, other: &LogicalExpr) -> 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 Serialize for LogicalExpr

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for LogicalExpr

impl StructuralPartialEq for LogicalExpr