class Sass::Script::Operation

such as ‘$a + $b` or `“foo” + 1`.
A SassScript parse node representing a binary operation,

def _perform(environment)

Raises:
  • (Sass::SyntaxError) - if the operation is undefined for the operands

Returns:
  • (Literal) - The SassScript object that is the value of the operation

Parameters:
  • environment (Sass::Environment) -- The environment in which to evaluate the SassScript 
def _perform(environment)
  literal1 = @operand1.perform(environment)
  literal2 = @operand2.perform(environment)
  if @operator == :space && context == :equals
    literal1 = Sass::Script::String.new(literal1.value) if literal1.is_a?(Sass::Script::String)
    literal2 = Sass::Script::String.new(literal2.value) if literal2.is_a?(Sass::Script::String)
  end
  begin
    opts(literal1.send(@operator, literal2))
  rescue NoMethodError => e
    raise e unless e.name.to_s == @operator.to_s
    raise Sass::SyntaxError.new("Undefined operation: \"#{literal1} #{@operator} #{literal2}\".")
  end
end

def children

Other tags:
    See: Node#children -

Returns:
  • (Array) - 
def children
  [@operand1, @operand2]
end

def initialize(operand1, operand2, operator)

Parameters:
  • operator (Symbol) -- The operator to perform.
  • operand2 (Script::Node) -- The parse-tree node
  • operand1 (Script::Node) -- The parse-tree node 
def initialize(operand1, operand2, operator)
  @operand1 = operand1
  @operand2 = operand2
  @operator = operator
  super()
end

def inspect

Returns:
  • (String) - A human-readable s-expression representation of the operation 
def inspect
  "(#{@operator.inspect} #{@operand1.inspect} #{@operand2.inspect})"
end

def operand_to_sass(op, side, opts) 

def operand_to_sass(op, side, opts)
  return "(#{op.to_sass(opts)})" if op.is_a?(List)
  return op.to_sass(opts) unless op.is_a?(Operation)
  pred = Sass::Script::Parser.precedence_of(@operator)
  sub_pred = Sass::Script::Parser.precedence_of(op.operator)
  assoc = Sass::Script::Parser.associative?(@operator)
  return "(#{op.to_sass(opts)})" if sub_pred < pred ||
    (side == :right && sub_pred == pred && !assoc)
  op.to_sass(opts)
end

def to_sass(opts = {})

Other tags:
    See: Node#to_sass - 
def to_sass(opts = {})
  pred = Sass::Script::Parser.precedence_of(@operator)
  o1 = operand_to_sass @operand1, :left, opts
  o2 = operand_to_sass @operand2, :right, opts
  sep =
    case @operator
    when :comma; ", "
    when :space; " "
    else; " #{Lexer::OPERATORS_REVERSE[@operator]} "
    end
  "#{o1}#{sep}#{o2}"
end