# File lib/brakeman/checks/base_check.rb, line 30
  def initialize(app_tree, tracker)
    super()
    @app_tree = app_tree
    @results = [] #only to check for duplicates
    @warnings = []
    @tracker = tracker
    @string_interp = false
    @current_set = nil
    @current_template = @current_module = @current_class = @current_method = nil
    @active_record_models = nil
    @mass_assign_disabled = nil
    @has_user_input = nil
    @safe_input_attributes = Set[:to_i, :to_f, :arel_table, :id]
    @comparison_ops  = Set[:==, :!=, :>, :<, :>=, :<=]
  end