Enum StyleQuery 

pub enum StyleQuery {
    Not(Box<StyleQuery>),
    Operation(Box<[StyleQuery]>, Operator),
    InParens(Box<StyleQuery>),
    Feature(StyleFeature),
    GeneralEnclosed(String),
}

https://drafts.csswg.org/css-conditional-5/#typedef-style-query

Variants

Not(Box<StyleQuery>)

A negation of a condition.

Operation(Box<[StyleQuery]>, Operator)

A set of joint operations.

InParens(Box<StyleQuery>)

A condition wrapped in parenthesis.

Feature(StyleFeature)

A feature query (--foo: bar or just --foo).

GeneralEnclosed(String)

An unknown “general-enclosed” term.

Implementations

impl StyleQuery

fn maybe_parenthesized<W>(&self, dest: &mut CssWriter<'_, W>) -> Result

where W: Write,

fn parse<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, feature_type: FeatureType, ) -> Result<Self, ParseError<'i>>

fn parse_in_parenthesis_block<'i>( context: &ParserContext<'_>, input: &mut Parser<'i, '_>, ) -> Result<Self, ParseError<'i>>

fn try_parse_block<'i, T, F>( context: &ParserContext<'_>, input: &mut Parser<'i, '_>, start: SourcePosition, parse: F, ) -> Option<T>

where F: for<'tt> FnOnce(&mut Parser<'i, 'tt>) -> Result<T, ParseError<'i>>,

fn matches(&self, ctx: &Context<'_>) -> KleeneValue

Trait Implementations

impl Clone for StyleQuery

fn clone(&self) -> StyleQuery

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StyleQuery

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

Formats the value using the given formatter.

impl MallocSizeOf for StyleQuery

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl OperationParser for StyleQuery

fn parse_in_parens<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, feature_type: FeatureType, ) -> Result<Self, ParseError<'i>>

fn new_not(inner: Box<Self>) -> Self

fn new_operation(conditions: Box<[Self]>, operator: Operator) -> Self

fn parse_internal<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, feature_type: FeatureType, allow_or: AllowOr, ) -> Result<Self, ParseError<'i>>

https://drafts.csswg.org/mediaqueries-5/#typedef-media-condition or https://drafts.csswg.org/mediaqueries-5/#typedef-media-condition-without-or (depending on allow_or).

impl PartialEq for StyleQuery

fn eq(&self, other: &StyleQuery) -> 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 ToCss for StyleQuery

fn to_css<W>(&self, dest: &mut CssWriter<'_, W>) -> Result

where W: Write,

Serialize self in CSS syntax, writing to dest.

fn to_css_string(&self) -> String

Serialize self in CSS syntax and return a string.

fn to_css_cssstring(&self) -> String

Serialize self in CSS syntax and return a CssString.

impl ToShmem for StyleQuery

fn to_shmem(&self, builder: &mut SharedMemoryBuilder) -> Result<Self>

Clones this value into a form suitable for writing into a SharedMemoryBuilder.

impl StructuralPartialEq for StyleQuery