Class: Iba::MethodCallExpression

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(reciever, methodname, args) ⇒ MethodCallExpression

Returns a new instance of MethodCallExpression.



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# File 'lib/iba.rb', line 108

def initialize reciever, methodname, args
  @_reciever = reciever
  @_method = methodname
  @_args = args.map { |a| _wrap(a) }
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object 



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# File 'lib/iba.rb', line 137

def method_missing method, *args
  super if method.to_s =~ /^_/
  MethodCallExpression.new self, method, args
end

Instance Attribute Details

#_args ⇒ Object (readonly)

Returns the value of attribute _args.



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# File 'lib/iba.rb', line 106

def _args
  @_args
end

#_method ⇒ Object (readonly)

Returns the value of attribute _method.



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# File 'lib/iba.rb', line 106

def _method
  @_method
end

#_reciever ⇒ Object (readonly)

Returns the value of attribute _reciever.



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# File 'lib/iba.rb', line 106

def _reciever
  @_reciever
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/iba.rb', line 150

def == other
  method_missing :==, other
end

#_to_s ⇒ Object 



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# File 'lib/iba.rb', line 114

def _to_s
  rcv = @_reciever._to_s
  args = @_args.map { |a| a.respond_to?(:_to_s) ? a._to_s : a.to_s }

  if @_method == :[]
    "#{rcv}[#{args[0]}]"
  elsif method_is_operator?
    case @_args.length
    when 0
      "#{@_method.to_s.sub(/@$/, '')}#{rcv}"
    when 1
      "(#{rcv} #{@_method} #{args.first})"
    else
      raise NotImplementedError
    end
  else
    str = rcv == '' ? '' : "#{rcv}."
    str << @_method.to_s
    str << "(#{args.join(', ')})" unless @_args.empty?
    str
  end
end

#method_is_operator? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iba.rb', line 142

def method_is_operator?
  @_method.to_s !~ /^[a-z]/
end

#to_s ⇒ Object 



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# File 'lib/iba.rb', line 146

def to_s
  method_missing :to_s
end