91 lines
2.1 KiB
Ruby
91 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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module Sass
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module Value
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# Sass's calculation type.
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#
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# @see https://sass-lang.com/documentation/js-api/classes/sasscalculation/
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class Calculation
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include Value
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include CalculationValue
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class << self
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private :new
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# @param argument [CalculationValue]
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# @return [Calculation]
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def calc(argument)
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new('calc', [argument])
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end
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# @param arguments [Array<CalculationValue>]
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# @return [Calculation]
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def min(arguments)
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new('min', arguments)
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end
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# @param arguments [Array<CalculationValue>]
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# @return [Calculation]
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def max(arguments)
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new('max', arguments)
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end
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# @param min [CalculationValue]
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# @param value [CalculationValue]
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# @param max [CalculationValue]
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# @return [Calculation]
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def clamp(min, value = nil, max = nil)
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if (value.nil? && !valid_clamp_arg?(min)) ||
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(max.nil? && [min, value].none? { |x| x && valid_clamp_arg?(x) })
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raise Sass::ScriptError, 'Argument must be an unquoted SassString.'
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end
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new('clamp', [min, value, max].compact)
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end
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private
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def valid_clamp_arg?(value)
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value.is_a?(Sass::Value::String) && !value.quoted?
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end
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end
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private
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def initialize(name, arguments)
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arguments.each do |value|
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assert_calculation_value(value)
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end
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@name = name.freeze
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@arguments = arguments.freeze
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end
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public
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# @return [::String]
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attr_reader :name
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# @return [Array<CalculationValue>]
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attr_reader :arguments
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# @return [Calculation]
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def assert_calculation(_name = nil)
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self
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end
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# @return [::Boolean]
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def ==(other)
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other.is_a?(Sass::Value::Calculation) &&
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other.name == name &&
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other.arguments == arguments
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end
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# @return [Integer]
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def hash
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@hash ||= [name, *arguments].hash
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end
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end
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end
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end
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