Enum css::domain::expressions::CalcExpression

pub enum CalcExpression<U: Unit> {
    CalculablePropertyValue(CalculablePropertyValue<U>),
    Number(U::Number),
    Parentheses(Box<CalcExpression<U>>),
    Addition(Box<CalcExpression<U>>, Box<CalcExpression<U>>),
    Subtraction(Box<CalcExpression<U>>, Box<CalcExpression<U>>),
    Multiplication(Box<CalcExpression<U>>, Box<CalcExpression<U>>),
    Division(Box<CalcExpression<U>>, Box<CalcExpression<U>>),
}

Variants

CalculablePropertyValue(CalculablePropertyValue<U>)Number(U::Number)Parentheses(Box<CalcExpression<U>>)Addition(Box<CalcExpression<U>>, Box<CalcExpression<U>>)Subtraction(Box<CalcExpression<U>>, Box<CalcExpression<U>>)Multiplication(Box<CalcExpression<U>>, Box<CalcExpression<U>>)Division(Box<CalcExpression<U>>, Box<CalcExpression<U>>)

Trait Implementations

impl<U: Debug + Unit> Debug for CalcExpression<U> where
    U::Number: Debug, 

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<U: Clone + Unit> Clone for CalcExpression<U> where
    U::Number: Clone, 

fn clone(&self) -> CalcExpression<U>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<U: Ord + Unit> Ord for CalcExpression<U> where
    U::Number: Ord, 

fn cmp(&self, __arg_0: &CalcExpression<U>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl<U: PartialOrd + Unit> PartialOrd for CalcExpression<U> where
    U::Number: PartialOrd, 

fn partial_cmp(&self, __arg_0: &CalcExpression<U>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &CalcExpression<U>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &CalcExpression<U>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &CalcExpression<U>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &CalcExpression<U>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<U: Eq + Unit> Eq for CalcExpression<U> where
    U::Number: Eq, 

impl<U: PartialEq + Unit> PartialEq for CalcExpression<U> where
    U::Number: PartialEq, 

fn eq(&self, __arg_0: &CalcExpression<U>) -> bool

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

fn ne(&self, __arg_0: &CalcExpression<U>) -> bool

This method tests for !=.

impl<U: Hash + Unit> Hash for CalcExpression<U> where
    U::Number: Hash, 

fn hash<__HU: Hasher>(&self, __arg_0: &mut __HU)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl<U: Unit> Default for CalcExpression<U>

fn default() -> Self

Returns the "default value" for a type.

impl<U: Unit> ToCss for CalcExpression<U>

fn to_css<W: Write>(&self, dest: &mut W) -> Result

Serialize self in CSS syntax, writing to dest.

fn to_css_string(&self) -> String

Serialize self in CSS syntax and return a string.

impl<U: Unit> Expression<U> for CalcExpression<U>

fn evaluate<Conversion: FontRelativeLengthConversion<U::Number> + ViewportPercentageLengthConversion<U::Number> + PercentageConversion<U::Number> + AttributeConversion<U> + CssVariableConversion>(
    &self,
    conversion: &Conversion
) -> Option<U::Number>

Evaluate the calc() expression, returning the numeric value of the canonical dimension Division by zero is handled by returning the maximum possible f32 value Subtractions for UnsignedCssNumber that are negative are handled by returning 0.0 Note: We are quite lenient with calculations of unit-less and unit-having quantities, eg 100px * 100px is evaluated to 10,000px, not 10,000px^2, and 50 + 100px is evaluated to 150px