22 lines
561 B
Ruby
22 lines
561 B
Ruby
module Sass::Script
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class UnaryOperation # :nodoc:
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def initialize(operand, operator)
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@operand = operand
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@operator = operator
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end
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def inspect
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"(#{@operator.inspect} #{@operand.inspect})"
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end
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def perform(environment)
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operator = "unary_#{@operator}"
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literal = @operand.perform(environment)
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literal.send(operator)
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rescue NoMethodError => e
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raise e unless e.name.to_s == operator.to_s
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raise Sass::SyntaxError.new("Undefined unary operation: \"#{@operator} #{literal}\".")
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end
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end
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end
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