Struct Filter

pub struct Filter(/* private fields */);

A filter expression.

Implementations

impl Filter

pub fn new<V: Into<String>>(tag: Tag, operator: Operator, value: V) -> Self

Create a filter which selects on the given tag, using the given operator, for the given value.

See also Tag::any().

pub fn tag<V: Into<String>>(tag: Tag, value: V) -> Self

Create a filter which checks where the given tag is equal to the given value.

Shorthand method that always checks for equality.

pub fn tag_exists(tag: Tag) -> Self

Create a filter which checks for the existence of tag (with any value).

pub fn tag_absent(tag: Tag) -> Self

Create a filter which checks for the absence of tag.

pub fn negate(self) -> Self

Negate the filter.

You can also use the negation operator (!) if you prefer to negate at the start of an expression.

pub fn and(self, other: Self) -> Self

Chain the given filter onto this one with an AND.

Automatically flattens nested AND conditions.

Trait Implementations

impl Argument for Filter

fn render(&self, buf: &mut BytesMut)

Render the argument into the command buffer.

impl Clone for Filter

fn clone(&self) -> Filter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Filter

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

Formats the value using the given formatter.

impl Not for Filter

type Output = Filter

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl PartialEq for Filter

fn eq(&self, other: &Filter) -> 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 Eq for Filter

impl StructuralPartialEq for Filter