Class: Fabulator::Expr::UnaryExpr

Inherits:
Object
  • Object
show all
Defined in:
lib/fabulator/expr/unary_expr.rb

Direct Known Subclasses

NegExpr

Instance Method Summary collapse

Constructor Details

#initialize(e) ⇒ UnaryExpr

Returns a new instance of UnaryExpr.



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# File 'lib/fabulator/expr/unary_expr.rb', line 4

def initialize(e)
  @expr = e
end

Instance Method Details

#run(context, autovivify = false) ⇒ Object 



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# File 'lib/fabulator/expr/unary_expr.rb', line 8

def run(context, autovivify = false)
  l = @expr.run(context, autovivify)

  l = [ l ] unless l.is_a?(Array)

  l = l.collect { |i| i.value }.uniq - [ nil ]

  return @expr.collect{|e|  Fabulator::Expr::Node.new(
        context.root.axis,
        context.root.roots,
        self.calculate(e),
        []
      ) }
end