Class: CodeFromNameInstruction

Inherits:
Instruction show all
Defined in:
lib/instructions/conversion/code_from_name.rb

Overview

pops the top :name item; pushes a new :code item, with value equal to the :name item’s blueprint

needs: 1 :name

pushes: 1 :code

Instance Attribute Summary

Attributes inherited from Instruction

#context

Instance Method Summary collapse

Methods inherited from Instruction

all_instructions, #go, inherited, #initialize, #needs, #pushes, to_nudgecode

Constructor Details

This class inherits a constructor from Instruction

Instance Method Details

#cleanup ⇒ Object 



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# File 'lib/instructions/conversion/code_from_name.rb', line 22

def cleanup
  pushes :code, @result
end

#derive ⇒ Object 



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# File 'lib/instructions/conversion/code_from_name.rb', line 19

def derive
  @result = ValuePoint.new("code", "ref #{@arg}")
end

#preconditions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/instructions/conversion/code_from_name.rb', line 13

def preconditions?
  needs :name, 1
end

#setup ⇒ Object 



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# File 'lib/instructions/conversion/code_from_name.rb', line 16

def setup
  @arg = @context.pop(:name).name
end