Class: Nodewrap::ByteDecoder::Environment

Inherits:
Object
  • Object
show all
Defined in:
lib/bytedecoder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(local_table) ⇒ Environment

Returns a new instance of Environment.



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# File 'lib/bytedecoder.rb', line 31

def initialize(local_table)
  @stack = []
  @expressions = []
  @local_table = local_table
  @last = nil
  @pc = 0
end

Instance Attribute Details

#expressions ⇒ Object (readonly)

Returns the value of attribute expressions.



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# File 'lib/bytedecoder.rb', line 25

def expressions
  @expressions
end

#last ⇒ Object

Returns the value of attribute last.



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# File 'lib/bytedecoder.rb', line 27

def last
  @last
end

#local_table ⇒ Object (readonly)

Returns the value of attribute local_table.



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# File 'lib/bytedecoder.rb', line 26

def local_table
  @local_table
end

#pc ⇒ Object

Returns the value of attribute pc.



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# File 'lib/bytedecoder.rb', line 29

def pc
  @pc
end

#seq ⇒ Object (readonly)

Returns the value of attribute seq.



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# File 'lib/bytedecoder.rb', line 28

def seq
  @seq
end

#stack ⇒ Object (readonly)

Returns the value of attribute stack.



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# File 'lib/bytedecoder.rb', line 24

def stack
  @stack
end

Instance Method Details

#advance(instruction_length) ⇒ Object 



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# File 'lib/bytedecoder.rb', line 39

def advance(instruction_length)
  @pc += instruction_length
end

#remember(expression) ⇒ Object 



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# File 'lib/bytedecoder.rb', line 43

def remember(expression)
  if not expression.is_a?(Expression::Literal) then
    @expressions << expression
  end
end