Struct VariableValue 

pub struct VariableValue {
    pub css: String,
    pub url_data: UrlExtraData,
    pub references: References,
    pub explicitly_attr_tainted: bool,
    /* private fields */
}

A value for a custom property is just a set of tokens.

We preserve the original CSS for serialization, and also the variable references to other custom property names.

Fields

css: String

The raw CSS string.

url_data: UrlExtraData

The url data of the stylesheet where this value came from.

references: References

var(), env(), attr() or non-custom property (e.g. through em) references.

explicitly_attr_tainted: bool

Was this variable value attr tainted before. Used to keep attr tainting information when uncomputing a style that needs to be put back into the cascade.

Implementations

impl VariableValue

pub fn new( css: String, url_data: &UrlExtraData, first_token_type: TokenSerializationType, last_token_type: TokenSerializationType, ) -> Self

Create a new custom property without parsing if the CSS is known to be valid and contain no references.

pub fn parse( input: &mut Parser<'_>, namespaces: Option<&FxHashMap<Prefix, Namespace>>, url_data: &UrlExtraData, ) -> Result<Self, ParseError>

Parse a custom property value.

pub fn is_attr_tainted(&self) -> bool

Returns whether this value is tainted by attr().

pub fn css_text(&self) -> &str

Returns the raw CSS text from this VariableValue

pub fn has_references(&self) -> bool

Returns whether this variable value has any reference to the environment or other variables.

pub fn collect_attribute_references(&self, references: &mut AttrReferenceSet)

Returns the attribute references in this variable value, if any.

Trait Implementations

impl Clone for VariableValue

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VariableValue

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

Formats the value using the given formatter.

impl Eq for VariableValue

impl MallocSizeOf for VariableValue

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 PartialEq for VariableValue

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

Equality operator ==.

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

Inequality operator !=.

impl ToComputedValue for VariableValue

type ComputedValue = VariableValue

The computed value type we’re going to be converted to.

fn to_computed_value(&self, _: &Context<'_>) -> Self

Convert a specified value to a computed value, using itself and the data inside the Context.

fn from_computed_value(other: &Self) -> Self

Convert a computed value to specified value form.

impl ToResolvedValue for VariableValue

type ResolvedValue = VariableValue

The resolved value type we’re going to be converted to.

fn to_resolved_value(self, _: &Context<'_>) -> Self

Convert a resolved value to a resolved value.

fn from_resolved_value(resolved: Self::ResolvedValue) -> Self

Convert a resolved value to resolved value form.

impl ToShmem for VariableValue

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

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