Enum IfTest 

pub enum IfTest<'a> {
    SupportsDeclaration(Function, Box<'a, Declaration<'a, StyleValue<'a>, CssMetadata>>, RightParen),
    Supports(Function, SupportsCondition<'a>, RightParen),
    Media(Function, MediaCondition<'a>, RightParen),
    Style(Function, StyleQuery<'a>, RightParen),
    Group(LeftParen, Box<'a, IfConditionExpr<'a>>, RightParen),
    GeneralEnclosed(Function, ComponentValues<'a>, RightParen),
}

A single <if-test> inside an IfCondition boolean expression.

https://drafts.csswg.org/css-values-5/#typedef-if-test

<if-test> =
  supports( [ <ident> : <declaration-value> ] | <supports-condition> ) |
  media( <media-feature> | <media-condition> ) |
  style( <style-query> )

Variants

SupportsDeclaration(Function, Box<'a, Declaration<'a, StyleValue<'a>, CssMetadata>>, RightParen)

supports( <ident> : <declaration-value> )

Supports(Function, SupportsCondition<'a>, RightParen)

supports( <supports-condition> )

Media(Function, MediaCondition<'a>, RightParen)

media( <media-feature> | <media-condition> )

Style(Function, StyleQuery<'a>, RightParen)

style( <style-query> )

Group(LeftParen, Box<'a, IfConditionExpr<'a>>, RightParen)

( <boolean-expr[ <if-test> ]> )

GeneralEnclosed(Function, ComponentValues<'a>, RightParen)

<general-enclosed>: forward-compatible unknown, preserved verbatim.

Trait Implementations

impl<'a> Clone for IfTest<'a>

fn clone(&self) -> IfTest<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for IfTest<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for IfTest<'a>

impl<'a> Hash for IfTest<'a>

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<'a> NodeWithMetadata<CssMetadata> for IfTest<'a>

fn self_metadata(&self) -> CssMetadata

Returns the metadata contributed by this node itself, not including children. Most nodes don’t contribute metadata, so can simply return M::default(). Nodes like StyleRule or AtRules should return their own node kind flags here.

fn metadata(&self) -> CssMetadata

Returns the complete aggregated metadata for this node (self + children). Default implementation merges children’s metadata with self_metadata().

impl<'a> Ord for IfTest<'a>

fn cmp(&self, other: &IfTest<'a>) -> 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<'a> Parse<'a> for IfTest<'a>

fn parse<I>(p: &mut Parser<'a, I>) -> ParserResult<Self>

where I: Iterator<Item = Cursor> + Clone,

fn try_parse<I>(p: &mut Parser<'a, I>) -> Result<Self, Diagnostic>

where I: Iterator<Item = Cursor> + Clone,

impl<'a> PartialEq for IfTest<'a>

fn eq(&self, other: &IfTest<'a>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<'a> PartialOrd for IfTest<'a>

fn partial_cmp(&self, other: &IfTest<'a>) -> 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<'a> Peek<'a> for IfTest<'a>

const PEEK_KINDSET: KindSet

fn peek<I>(_: &Parser<'a, I>, c: Cursor) -> bool

where I: Iterator<Item = Cursor> + Clone,

impl<'a> SemanticEq for IfTest<'a>

fn semantic_eq(&self, other: &Self) -> bool

Returns true if self and other are semantically equal.

impl<'a> StructuralPartialEq for IfTest<'a>

impl<'a> ToCursors for IfTest<'a>

fn to_cursors(&self, s: &mut impl CursorSink)

impl<'a> ToSpan for IfTest<'a>

fn to_span(&self) -> Span