Class: Atomy::Code::Pattern::QuasiQuote::Walker

Inherits:
Object
  • Object
show all
Defined in:
lib/atomy/code/pattern/quasi_quote.rb

Direct Known Subclasses

Constructor

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Walker

Returns a new instance of Walker.



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# File 'lib/atomy/code/pattern/quasi_quote.rb', line 29

def initialize
  @depth = 0
end

Instance Method Details

#go(x) ⇒ Object 



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# File 'lib/atomy/code/pattern/quasi_quote.rb', line 33

def go(x)
  x.accept(self)
end

#unquote(_) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/atomy/code/pattern/quasi_quote.rb', line 56

def unquote(_)
  raise NotImplementedError
end

#visit_quasiquote(qq) ⇒ Object 



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# File 'lib/atomy/code/pattern/quasi_quote.rb', line 37

def visit_quasiquote(qq)
  @depth += 1
  visit(qq)
ensure
  @depth -= 1
end

#visit_unquote(x) ⇒ Object 



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# File 'lib/atomy/code/pattern/quasi_quote.rb', line 44

def visit_unquote(x)
  @depth -= 1

  if @depth == 0
    unquote(x)
  else
    visit(x)
  end
ensure
  @depth += 1
end