Class: LintFu::Visitor

Inherits:
SexpProcessor
  • Object
show all
Defined in:
lib/lint_fu/visitor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Visitor

Returns a new instance of Visitor.



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# File 'lib/lint_fu/visitor.rb', line 5

def initialize
  super
  self.require_empty   = false
  self.auto_shift_type = false
  @observers      = []
end

Instance Attribute Details

#observers ⇒ Object (readonly)

Returns the value of attribute observers.



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# File 'lib/lint_fu/visitor.rb', line 3

def observers
  @observers
end

Instance Method Details

#process(sexp) ⇒ Object 



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# File 'lib/lint_fu/visitor.rb', line 12

def process(sexp)
  tag = sexp[0]

  begin_meth  = "observe_#{tag}_begin".to_sym
  around_meth = "observe_#{tag}".to_sym
  end_meth    = "observe_#{tag}_end".to_sym

  observers.each do |o|
    o.__send__(begin_meth, sexp) if o.respond_to?(begin_meth)
  end

  observers.each do |o|
    o.__send__(around_meth, sexp) if o.respond_to?(around_meth)
  end

  result = super(sexp)

  observers.each do |o|
    o.__send__(end_meth, sexp) if o.respond_to?(end_meth)
  end

  return result
end