SassNumber class Null safety Value
A SassScript number.
Numbers can have units. Although there's no literal syntax for it, numbers
support scientific-style numerator and denominator units (for example,
miles/hour). These are expected to be resolved before being emitted to
CSS.
Constructors
- SassNumber(num value, [String? unit])
-
Creates a number, optionally with a single numerator unit. [...]
factory
-
SassNumber.withUnits(num value, {List<
String> ? numeratorUnits, List<String> ? denominatorUnits}) -
Creates a number with full
numeratorUnitsanddenominatorUnits.factory
Properties
- asInt → int?
-
If this is an integer according to isInt, returns value as an int. [...]
read-only
-
asList
→ List<
Value> -
This value as a list. [...]
read-only, inherited
-
denominatorUnits
→ List<
String> -
This number's denominator units.
read-only
- hasBrackets → bool
-
Whether this value as a list has brackets. [...]
read-only, inherited
- hashCode → int
-
The hash code for this object. [...]
read-only, override
- hasUnits → bool
-
Whether this has any units. [...]
read-only
- isInt → bool
-
Whether this is an integer, according to
fuzzyEquals. [...]read-only - isTruthy → bool
-
Whether the value counts as
truein an@ifstatement and other contexts.read-only, inherited -
numeratorUnits
→ List<
String> -
This number's numerator units.
read-only
- realNull → Value?
-
Returns Dart's
nullvalue if this is sassNull, and returns this otherwise.read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
- separator → ListSeparator
-
The separator for this value as a list. [...]
read-only, inherited
- unitString → String
-
Returns a human readable string representation of this number's units.
read-only
- value → num
-
The value of this number. [...]
final
Methods
-
accept<
T> (ValueVisitor< T> visitor) → T -
Calls the appropriate visit method on
visitor. [...] -
assertBoolean(
[String? name]) → SassBoolean -
Throws a
SassScriptExceptionif this isn't a boolean. [...]inherited -
assertCalculation(
[String? name]) → SassCalculation -
Throws a
SassScriptExceptionif this isn't a calculation. [...]inherited -
assertColor(
[String? name]) → SassColor -
Throws a
SassScriptExceptionif this isn't a color. [...]inherited -
assertFunction(
[String? name]) → SassFunction -
Throws a
SassScriptExceptionif this isn't a function reference. [...]inherited -
assertInt(
[String? name]) → int - Returns value as an int, if it's an integer value according to isInt. [...]
-
assertMap(
[String? name]) → SassMap -
Throws a
SassScriptExceptionif this isn't a map. [...]inherited -
assertNoUnits(
[String? name]) → void -
Throws a
SassScriptExceptionunless this has no units. [...] -
assertNumber(
[String? name]) → SassNumber -
Throws a
SassScriptExceptionif this isn't a number. [...]override -
assertString(
[String? name]) → SassString -
Throws a
SassScriptExceptionif this isn't a string. [...]inherited -
assertUnit(
String unit, [String? name]) → void -
Throws a
SassScriptExceptionunless this hasunitas its only unit (and as a numerator). [...] -
coerce(
List< String> newNumerators, List<String> newDenominators, [String? name]) → SassNumber -
Returns a copy of this number, converted to the units represented by
newNumeratorsandnewDenominators. [...] -
coerceToMatch(
SassNumber other, [String? name, String? otherName]) → SassNumber -
Returns a copy of this number, converted to the same units as
other. [...] -
coerceValue(
List< String> newNumerators, List<String> newDenominators, [String? name]) → num -
Returns value, converted to the units represented by
newNumeratorsandnewDenominators. [...] -
coerceValueToMatch(
SassNumber other, [String? name, String? otherName]) → num -
Returns value, converted to the same units as
other. [...] -
coerceValueToUnit(
String unit, [String? name]) → num - A shorthand for coerceValue with only one numerator unit.
-
compatibleWithUnit(
String unit) → bool -
Returns whether this can be coerced to the given
unit. [...] -
convertToMatch(
SassNumber other, [String? name, String? otherName]) → SassNumber -
Returns a copy of this number, converted to the same units as
other. [...] -
convertValueToMatch(
SassNumber other, [String? name, String? otherName]) → num -
Returns value, converted to the same units as
other. [...] -
hasCompatibleUnits(
SassNumber other) → bool -
Returns whether this has units that are compatible with
other. [...] -
hasPossiblyCompatibleUnits(
SassNumber other) → bool -
Returns whether this has units that are possibly-compatible with
other, as defined by the Sass spec. -
hasUnit(
String unit) → bool -
Returns whether this has
unitas its only unit (and as a numerator). -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
sassIndexToListIndex(
Value sassIndex, [String? name]) → int -
Converts
sassIndexinto a Dart-style index into the list returned by asList. [...]inherited -
toCssString(
{bool quote = true}) → String -
Returns a valid CSS representation of this. [...]
inherited
-
toString(
) → String -
Returns a string representation of this. [...]
inherited
-
tryMap(
) → SassMap? -
Returns this as a SassMap if it is one (including empty lists, which
count as empty maps) or returns
nullif it's not.inherited -
valueInRange(
num min, num max, [String? name]) → num -
If value is between
minandmax, returns it. [...] -
valueInUnits(
List< String> newNumerators, List<String> newDenominators, [String? name]) → num -
This has been renamed coerceValue for consistency with coerceToMatch,
coerceValueToMatch, convertToMatch, and convertValueToMatch.
@Deprecated("Use coerceValue instead.")
-
withListContents(
Iterable< Value> contents, {ListSeparator? separator, bool? brackets}) → SassList -
Returns a new list containing
contentsthat defaults to this value's separator and brackets.inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator. [...]
override