Enum AST

pub enum AST<P> {
    Equals {
        field: P,
        value: Value,
    },
    NotEquals {
        field: P,
        value: Value,
    },
    In {
        field: P,
        value: Value,
    },
    Contains {
        field: P,
        value: Value,
    },
    GreaterThan {
        field: P,
        value: Value,
    },
    LessThan {
        field: P,
        value: Value,
    },
    GreaterThanOrEqual {
        field: P,
        value: Value,
    },
    LessThanOrEqual {
        field: P,
        value: Value,
    },
    StartsWith {
        field: P,
        value: Value,
    },
    EndsWith {
        field: P,
        value: Value,
    },
    RegexMatch {
        field: P,
        value: Value,
    },
    InvalidField {
        field_name: String,
    },
    And(Box<AST<P>>, Box<AST<P>>),
    Or(Box<AST<P>>, Box<AST<P>>),
    Not(Box<AST<P>>),
}

An enumeration of Abstract Syntax Tree (AST) nodes representing various query operations. P: The generic type parameter representing the field type in the AST.

Variants

Equals

Represents an equality operation: field == value.

Fields

field: P

value: Value

NotEquals

Represents an inequality operation: field != value.

Fields

field: P

value: Value

In

Represents a containment operation: field in value.

Fields

field: P

value: Value

Contains

Represents a containment operation: field contains value.

Fields

field: P

value: Value

GreaterThan

Represents a greater-than operation: field > value.

Fields

field: P

value: Value

LessThan

Represents a less-than operation: field < value.

Fields

field: P

value: Value

GreaterThanOrEqual

Represents a greater-than-or-equal-to operation: field >= value.

Fields

field: P

value: Value

LessThanOrEqual

Represents a less-than-or-equal-to operation: field <= value.

Fields

field: P

value: Value

StartsWith

Represents a starts-with operation: field starts with value.

Fields

field: P

value: Value

EndsWith

Represents an ends-with operation: field ends with value.

Fields

field: P

value: Value

RegexMatch

Represents a regex-match operation: field matches regex pattern.

Fields

field: P

value: Value

InvalidField

Fields

field_name: String

And(Box<AST<P>>, Box<AST<P>>)

Represents a logical AND operation between two AST nodes.

Or(Box<AST<P>>, Box<AST<P>>)

Represents a logical OR operation between two AST nodes.

Not(Box<AST<P>>)

Implementations

impl<P> AST<P>

pub fn apply<F: StructMatcher<P> + Clone>(&self, items: &[F]) -> Vec<F>

Trait Implementations

impl<P: Clone> Clone for AST<P>

fn clone(&self) -> AST<P>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<P: Debug> Debug for AST<P>

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

Formats the value using the given formatter.

impl<P: PartialEq> PartialEq for AST<P>

fn eq(&self, other: &AST<P>) -> bool

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

const 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<P> StructuralPartialEq for AST<P>