Struct Integer 

pub struct Integer(NumericUnion<(), i32, CalcNumeric>);

A specified <integer>, either a simple integer value, a resolved calc expression, or a full calc expression tree that cannot be computed at parse time. Note that a calc expression may not actually be an integer; it will be rounded at computed-value time.

https://drafts.csswg.org/css-values/#integers

Tuple Fields

0: NumericUnion<(), i32, CalcNumeric>

Implementations

impl Integer

pub fn new(val: CSSInteger) -> Self

Trivially constructs a new Integer value.

pub fn get(&self) -> Option<CSSInteger>

Returns the value if this is a plain (non-calc) integer, or None otherwise. Use resolve() to also handle resolvable calc expressions, or to_computed_value() when computed context is available.

pub fn resolve(&self) -> Option<CSSInteger>

Returns the value if it can be resolved at parse time, including resolvable calc expressions. Returns None for calc expressions that require computed-value context.

pub fn ensure_clamping_mode( &mut self, clamping_mode: AllowedNumericType, ) -> Result<(), ()>

Makes sure this number matches the clamping, or errors otherwise.

impl Integer

pub fn parse_non_negative<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, ) -> Result<Integer, ParseError<'i>>

Parse a non-negative integer.

pub fn parse_positive<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, ) -> Result<Integer, ParseError<'i>>

Parse a positive integer (>= 1).

Trait Implementations

impl Clone for Integer

fn clone(&self) -> Integer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Integer

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

Formats the value using the given formatter.

impl MallocSizeOf for Integer

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 One for Integer

fn one() -> Self

Reutrns the one value.

fn is_one(&self) -> bool

Returns whether this value is one.

impl Parse for Integer

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

Parse a value of this type.

impl PartialEq<i32> for Integer

fn eq(&self, value: &i32) -> 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 PartialEq for Integer

fn eq(&self, other: &Integer) -> 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 SpecifiedValueInfo for Integer

const SUPPORTED_TYPES: u8 = 0

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 Integer

type ComputedValue = i32

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

fn to_computed_value(&self, context: &Context<'_>) -> i32

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

fn from_computed_value(computed: &i32) -> Self

Convert a computed value to specified value form.

impl ToCss for Integer

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 Integer

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

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

impl ToTyped for Integer

fn to_typed(&self, dest: &mut ThinVec<TypedValue>) -> Result<(), ()>

Attempt to convert self into one or more TypedValue items.

fn to_typed_value(&self) -> Option<TypedValue>

Attempt to convert self into a TypedValue.

fn to_numeric_value(&self) -> Option<NumericValue>

Attempt to convert self into a NumericValue.

fn to_typed_value_list(&self) -> Option<TypedValueList>

Attempt to convert self into a TypedValueList.

impl Zero for Integer

fn zero() -> Self

Returns the zero value.

fn is_zero(&self) -> bool

Returns whether this value is zero.

impl StructuralPartialEq for Integer