Class: Hold::InMemory::Cell

Inherits:
Object
  • Object
show all
Includes:
Cell
Defined in:
lib/hold/in_memory/cell.rb

Direct Known Subclasses

ObjectCell

Instance Method Summary collapse

Methods included from Cell

#can_get_class?, #can_set_class?, #get_unless_empty, #set_if_empty, #set_unless_empty, #value, #value=

Constructor Details

#initialize(value = ARG_EMPTY) ⇒ Cell

new – empty new(nil) – non-empty, value is nil new(123) – non-empty, value is 123



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# File 'lib/hold/in_memory/cell.rb', line 9

def initialize(value=ARG_EMPTY)
  @value = value unless ARG_EMPTY.equal?(value)
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/hold/in_memory/cell.rb', line 25

def clear
  remove_instance_variable(:@value) if instance_variable_defined?(:@value)
end

#empty? ⇒ Boolean 



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# File 'lib/hold/in_memory/cell.rb', line 21

def empty?
  !instance_variable_defined?(:@value)
end

#get ⇒ Object 



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# File 'lib/hold/in_memory/cell.rb', line 13

def get
  @value
end

#set(value) ⇒ Object 



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# File 'lib/hold/in_memory/cell.rb', line 17

def set(value)
  @value = value
end