Module: DuplicateInstruction

Included in:
BoolDuplicateInstruction, CodeDuplicateInstruction, ExecDuplicateInstruction, FloatDuplicateInstruction, IntDuplicateInstruction, NameDuplicateInstruction
Defined in:
lib/instructions/infrastructure.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#target_stack ⇒ Object (readonly)

Returns the value of attribute target_stack.



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# File 'lib/instructions/infrastructure.rb', line 168

def target_stack
  @target_stack
end

Instance Method Details

#cleanup ⇒ Object 



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# File 'lib/instructions/infrastructure.rb', line 184

def cleanup
  pushes @target_stack, @result
end

#derive ⇒ Object 



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# File 'lib/instructions/infrastructure.rb', line 181

def derive
  @result = @arg1.clone
end

#initialize(context, target_stack) ⇒ Object 



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# File 'lib/instructions/infrastructure.rb', line 170

def initialize(context, target_stack)
  @target_stack = target_stack
  super(context)
end

#preconditions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/instructions/infrastructure.rb', line 175

def preconditions?
  needs @target_stack, 1
end

#setup ⇒ Object 



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# File 'lib/instructions/infrastructure.rb', line 178

def setup
  @arg1 = @context.peek(@target_stack)
end