Class: Nodewrap::ByteDecoder::Expression::Infix

Inherits:
Nodewrap::ByteDecoder::Expression show all
Defined in:
lib/bytedecoder.rb

Instance Attribute Summary collapse

Attributes inherited from Nodewrap::ByteDecoder::Expression

#pc

Instance Method Summary collapse

Methods inherited from Nodewrap::ByteDecoder::Expression

#<=>, #fmt

Constructor Details

#initialize(pc, op, lhs, rhs) ⇒ Infix

Returns a new instance of Infix.



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# File 'lib/bytedecoder.rb', line 100

def initialize(pc, op, lhs, rhs)
  super(pc)
  @op = op
  @lhs = lhs
  @rhs = rhs
end

Instance Attribute Details

#lhs ⇒ Object (readonly)

Returns the value of attribute lhs.



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# File 'lib/bytedecoder.rb', line 97

def lhs
  @lhs
end

#op ⇒ Object (readonly)

Returns the value of attribute op.



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# File 'lib/bytedecoder.rb', line 96

def op
  @op
end

#rhs ⇒ Object (readonly)

Returns the value of attribute rhs.



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# File 'lib/bytedecoder.rb', line 98

def rhs
  @rhs
end

Instance Method Details

#precedence ⇒ Object 



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# File 'lib/bytedecoder.rb', line 111

def precedence
  case @op
  when :*, :/, :%
    return 2
  when '+'.intern, '-'.intern
    return 3
  when :<<, :>>
    return 4
  when :>, :>=, :<, :<=, :==, :===
    return 5
  else
    raise ArgumentError, "Unknown op: #{@op}"
  end
end

#to_s ⇒ Object 



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# File 'lib/bytedecoder.rb', line 107

def to_s
  return "#{fmt(@lhs)} #{@op} #{fmt(@rhs)}"
end