Class: RBridge::RResultManager

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

Instance Method Summary collapse

Constructor Details

#initializeRResultManager

Returns a new instance of RResultManager.



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# File 'lib/r_bridge/r_bridge_lazyfunc_ext.rb', line 176

def initialize
  @results = []
end

Instance Method Details

#add_inst(inst_name) ⇒ Object



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# File 'lib/r_bridge/r_bridge_lazyfunc_ext.rb', line 180

def add_inst( inst_name )
  @results << [inst_name, RBridge::r_lang_nil() ]
end

#add_inst_r_obj(inst_name, r_obj) ⇒ Object



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# File 'lib/r_bridge/r_bridge_lazyfunc_ext.rb', line 184

def add_inst_r_obj( inst_name, r_obj )
  @results << [inst_name, r_obj ]
end

#get_last_for(r_result) ⇒ Object

If corresponding result name is not found, return r_nil().



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# File 'lib/r_bridge/r_bridge_lazyfunc_ext.rb', line 206

def get_last_for( r_result )  # If corresponding result name is not found, return r_nil().
  raise "get_last_for method requires RResultName or RResultNameArray for its argument." if ! ( r_result.is_a?(RResultName) || r_result.is_a?(RResultNameArray) )
  if( r_result.is_a? RResultName)
    inst_name = r_result.name

    elem_to_match = @results.reverse.find{|elem| elem[0] == inst_name }
    if elem_to_match.nil?
      return RBridge::r_nil()
    else
      r_obj = elem_to_match[1]
      if RBridge::is_r_nil?( r_obj )
        return RBridge::r_nil()
      else
        return r_obj
      end
    end
  elsif( r_result.is_a? RResultNameArray)
    index_array = r_result.elems.map(){|result_name|
       if result_name.is_a? RResultName
         get_last_index_for( result_name )
       else
         p result_name
         raise "RResultNameArray should hold only RResultName objects"
       end
    }

    if( index_array.all?(nil) )
      return RBridge::r_nil()
    else
      index_array.delete(nil)
      if ! index_array.empty?
        last_idx = index_array.max
        r_obj = @results[last_idx][1]
        return r_obj
      else
        return RBridge::r_nil()
      end
    end
  else
    raise "get_last_for() takes unexpected object"
  end
end

#get_last_index_for(result_name) ⇒ Object

From this method, if result name is not found return (Ruby) nil.



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# File 'lib/r_bridge/r_bridge_lazyfunc_ext.rb', line 188

def get_last_index_for( result_name ) # From this method, if result name is not found return (Ruby) nil.
    name = result_name.name

    idx = @results.size - 1
    @results.reverse.each{|inst_name, r_obj| 
      if inst_name == name
        break
      else
        idx = idx - 1
      end
    }
    if idx < 0 
      return nil
    else
      return idx
    end
end

#get_previousObject



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# File 'lib/r_bridge/r_bridge_lazyfunc_ext.rb', line 249

def get_previous()
   if @results.size > 0
    r_obj = @results.last[1]
    return r_obj
  else
    return RBridge::r_nil()
  end
end

#get_previous_inst_nameObject



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# File 'lib/r_bridge/r_bridge_lazyfunc_ext.rb', line 258

def get_previous_inst_name()
  if @results.size > 0
    last_inst_name = @results.last[0]
    r_obj = RBridge::create_strvec([last_inst_name])
    return r_obj
  else
    return RBridge::r_nil()
  end
end