Class: SyntaxTree::BasicVisitor::VisitMethodsChecker

Inherits:
Module
  • Object
show all
Defined in:
lib/syntax_tree/basic_visitor.rb

Overview

This module is responsible for checking all of the methods defined within a given block to ensure that they are valid visit methods.

Defined Under Namespace

Classes: Status

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ VisitMethodsChecker

Returns a new instance of VisitMethodsChecker.



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# File 'lib/syntax_tree/basic_visitor.rb', line 53

def initialize
  # We need the status to be an instance variable so that it can be
  # accessed by the disable! method, but also a local variable so that it
  # can be captured by the define_method block.
  status = @status = Status.new(true)

  define_method(:method_added) do |name|
    BasicVisitor.visit_method(name) if status.checking
    super(name)
  end
end

Instance Attribute Details

#status ⇒ Object (readonly)

This is the status of the checker. It’s used to determine whether or not we should be checking the methods that are defined. It is kept as an instance variable so that it can be disabled later.



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# File 'lib/syntax_tree/basic_visitor.rb', line 51

def status
  @status
end

Instance Method Details

#disable! ⇒ Object 



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# File 'lib/syntax_tree/basic_visitor.rb', line 65

def disable!
  status.checking = false
end