Class: PLang::VM::PObject

Inherits:
Object
  • Object
show all
Defined in:
lib/vm/pobject.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id, params) ⇒ PObject

Returns a new instance of PObject.



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# File 'lib/vm/pobject.rb', line 7

def initialize(id, params)
  @id = id
  @params = params
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/vm/pobject.rb', line 4

def id
  @id
end

#params ⇒ Object

Returns the value of attribute params.



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# File 'lib/vm/pobject.rb', line 5

def params
  @params
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/vm/pobject.rb', line 12

def to_s
  case @id
    when :integer, :decimal, :char, :string, :boolean
      return params[0].to_s
    when :empty
      return "'()"
    when :list
      str = "'("
      params = @params
      ok = false
      while params and params != []
        str += "#{params[0].to_s}, "
        params = params[1].params
        ok = true
      end
      if ok
        str[-2] = ')'
      else
        str += ')'
      end
      return str.strip
    else
      str = "{#{@id}"
      if @params.length > 0
        str += ": "
        @params.each do |param|
          str += "#{param.to_s}, "
        end
        str[-2] = "}"
      else
        str += "}"
      end
      return str.strip
  end
end