Class: ArrayWrapper

Inherits:
Object show all
Includes:
FromHash
Defined in:
lib/formula_eval/wrapper.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args, &b) ⇒ Object 



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# File 'lib/formula_eval/wrapper.rb', line 88

def method_missing(sym,*args,&b)
  res = if obj.respond_to?(sym)
    obj.send(sym,*args,&b).to_wrapped
  elsif sym.to_s =~ /_arrayindex_(\d+)/
    self[$1.to_i]
  elsif obj.contains_all_hashes?
    hash_mm(sym)
  else
    obj.send(sym,*args,&b).to_wrapped
  end
  res
end

Instance Attribute Details

#obj ⇒ Object

Returns the value of attribute obj.



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# File 'lib/formula_eval/wrapper.rb', line 83

def obj
  @obj
end

Instance Method Details

#*(arg) ⇒ Object 



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# File 'lib/formula_eval/wrapper.rb', line 104

def *(arg)
  map { |x| x * arg }
end

#[](i) ⇒ Object 



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# File 'lib/formula_eval/wrapper.rb', line 100

def [](i)
  raise "tried to pass string #{i} to array [] #{inspect}" unless i.kind_of?(Fixnum)
  obj[i].to_wrapped
end

#hash_mm(sym) ⇒ Object 



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# File 'lib/formula_eval/wrapper.rb', line 85

def hash_mm(sym)
  map { |h| h[sym.to_s] }.select { |x| x }.flatten.to_wrapped
end

#kind_of?(x) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/formula_eval/wrapper.rb', line 113

def kind_of?(x)
  return true if x == Array
  super
end

#to_unwrapped ⇒ Object 



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# File 'lib/formula_eval/wrapper.rb', line 110

def to_unwrapped
  obj.to_unwrapped
end

#to_wrapped ⇒ Object 



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# File 'lib/formula_eval/wrapper.rb', line 107

def to_wrapped
  self
end