Struct style::values::computed::font::FontLanguageOverride

#[repr(C)]
pub struct FontLanguageOverride(pub u32);

font-language-override can only have a single 1-4 ASCII character OpenType “language system” tag, so we should be able to compute it and store it as a 32-bit integer (see http://www.microsoft.com/typography/otspec/languagetags.htm).

Tuple Fields

0: u32

Implementations

impl FontLanguageOverride

pub fn normal() -> FontLanguageOverride

Get computed default value of font-language-override with 0

pub(crate) fn to_str(self, storage: &mut [u8; 4]) -> &str

Returns this value as a &str, backed by storage.

pub unsafe fn from_u32(value: u32) -> Self

Unsafe because Self::to_str requires the value to represent a UTF-8 string.

Trait Implementations

impl Clone for FontLanguageOverride

fn clone(&self) -> FontLanguageOverride

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FontLanguageOverride

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FontLanguageOverride

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl MallocSizeOf for FontLanguageOverride

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 Parse for FontLanguageOverride

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

normal |

impl PartialEq for FontLanguageOverride

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for FontLanguageOverride

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl SpecifiedValueInfo for FontLanguageOverride

const SUPPORTED_TYPES: u8 = 0u8

Supported CssTypes by the given value type.

fn collect_completion_keywords(_f: &mut dyn FnMut(&[&'static str]))

Collect value starting words for the given specified value type. This includes keyword and function names which can appear at the beginning of a value of this type.

impl ToComputedValue for FontLanguageOverride

where u32: ToComputedValue<ComputedValue = u32>,

type ComputedValue = FontLanguageOverride

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

fn from_computed_value(from: &Self::ComputedValue) -> Self

Convert a computed value to specified value form.

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

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

impl ToCss for FontLanguageOverride

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.

impl ToResolvedValue for FontLanguageOverride

where u32: ToResolvedValue<ResolvedValue = u32>,

type ResolvedValue = FontLanguageOverride

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

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

Convert a resolved value to resolved value form.

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

Convert a resolved value to a resolved value.

impl ToShmem for FontLanguageOverride

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

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

impl Copy for FontLanguageOverride

impl Eq for FontLanguageOverride

impl StructuralPartialEq for FontLanguageOverride