Class: CodeContainsQInstruction
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/code/code_contains_q.rb', line 19
def cleanup
pushes :bool, @result
end
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#derive ⇒ Object
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# File 'lib/instructions/code/code_contains_q.rb', line 9
def derive
looking_for_this = NudgeProgram.new(@arg1)
tree = NudgeProgram.new(@arg2)
if tree.parses? && looking_for_this.parses?
found = tree.linked_code.any? {|point| point.blueprint == looking_for_this.blueprint}
else
found = false
end
@result = ValuePoint.new("bool", found)
end
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#preconditions? ⇒ Boolean
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# File 'lib/instructions/code/code_contains_q.rb', line 2
def preconditions?
needs :code, 2
end
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#setup ⇒ Object
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# File 'lib/instructions/code/code_contains_q.rb', line 5
def setup
@arg2 = @context.pop_value(:code)
@arg1 = @context.pop_value(:code)
end
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