Class: SystemNavigation::InstructionStream

Inherits:
Object
  • Object
show all
Defined in:
lib/system_navigation/instruction_stream.rb,
lib/system_navigation/instruction_stream/decoder.rb,
lib/system_navigation/instruction_stream/instruction.rb,
lib/system_navigation/instruction_stream/instruction/attr_instruction.rb

Defined Under Namespace

Classes: Decoder, Instruction

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(method: nil, iseq: nil) ⇒ InstructionStream

Returns a new instance of InstructionStream.



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# File 'lib/system_navigation/instruction_stream.rb', line 9

def initialize(method: nil, iseq: nil)
  @method = method
  @iseq = iseq
end

Instance Attribute Details

#method ⇒ Object (readonly)

Returns the value of attribute method.



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# File 'lib/system_navigation/instruction_stream.rb', line 7

def method
  @method
end

Class Method Details

.on(method) ⇒ Object 



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# File 'lib/system_navigation/instruction_stream.rb', line 3

def self.on(method)
  self.new(method: method)
end

Instance Method Details

#decode ⇒ Object 



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# File 'lib/system_navigation/instruction_stream.rb', line 14

def decode
  @iseq ||= RubyVM::InstructionSequence.disasm(@method) || ''
end

#iseqs(sym) ⇒ Object 



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# File 'lib/system_navigation/instruction_stream.rb', line 22

def iseqs(sym)
  iseqs = @iseq.split("\n")

  if iseqs.any?
    instructions = iseqs.map { |instruction| Instruction.parse(instruction) }
    instructions.compact.select(&:vm_operative?)
  else
    Instruction::AttrInstruction.parse(@method, sym) || []
  end
end

#scan_for(selected_instructs) ⇒ Object 



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# File 'lib/system_navigation/instruction_stream.rb', line 18

def scan_for(selected_instructs)
  selected_instructs.any?
end