pub enum Constant {
E,
Pi,
Infinity,
NegativeInfinity,
Nan,
}
Expand description
A mathematical constant.
Variants
E
The base of the natural logarithm
Pi
The ratio of a circle’s circumference to its diameter
Infinity
infinity
NegativeInfinity
-infinity
Nan
Not a number.
Trait Implementations
sourceimpl<'i> Parse<'i> for Constant
impl<'i> Parse<'i> for Constant
sourcefn parse<'t>(
input: &mut Parser<'i, 't>
) -> Result<Self, ParseError<'i, ParserError<'i>>>
fn parse<'t>(
input: &mut Parser<'i, 't>
) -> Result<Self, ParseError<'i, ParserError<'i>>>
Parse a value of this type using an existing parser.
sourcefn parse_string(input: &'i str) -> Result<Self, ParseError<'i, ParserError<'i>>>
fn parse_string(input: &'i str) -> Result<Self, ParseError<'i, ParserError<'i>>>
Parse a value from a string. Read more
sourceimpl PartialEq<Constant> for Constant
impl PartialEq<Constant> for Constant
sourceimpl ToCss for Constant
impl ToCss for Constant
sourcefn to_css<W>(
&self,
dest: &mut Printer<'_, '_, '_, W>
) -> Result<(), PrinterError> where
W: Write,
fn to_css<W>(
&self,
dest: &mut Printer<'_, '_, '_, W>
) -> Result<(), PrinterError> where
W: Write,
Serialize self
in CSS syntax, writing to dest
.
sourcefn to_css_string(
&self,
options: PrinterOptions<'_>
) -> Result<String, PrinterError>
fn to_css_string(
&self,
options: PrinterOptions<'_>
) -> Result<String, PrinterError>
Serialize self
in CSS syntax and return a string. Read more
impl Copy for Constant
impl StructuralPartialEq for Constant
Auto Trait Implementations
impl RefUnwindSafe for Constant
impl Send for Constant
impl Sync for Constant
impl Unpin for Constant
impl UnwindSafe for Constant
Blanket Implementations
impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>
fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>
Deserializes using the given deserializer