Method: Puppet::Parser::Scope#exist?

Defined in:
lib/puppet/parser/scope.rb

#exist?(name) ⇒ Boolean

Returns true if the variable of the given name is set to any value (including nil)

Returns:

  • (Boolean) —

    if variable exists or not



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# File 'lib/puppet/parser/scope.rb', line 283

def exist?(name)
  # Note !! ensure the answer is boolean
  !!if name =~ /^(.*)::(.+)$/
      class_name = ::Regexp.last_match(1)
      variable_name = ::Regexp.last_match(2)
      return true if class_name == '' && BUILT_IN_VARS.include?(variable_name)

      # lookup class, but do not care if it is not evaluated since that will result
      # in it not existing anyway. (Tests may run with just scopes and no evaluated classes which
      # will result in class_scope for "" not returning topscope).
      klass = find_hostclass(class_name)
      other_scope = klass.nil? ? nil : class_scope(klass)
      if other_scope.nil?
        class_name == '' ? compiler.topscope.exist?(variable_name) : false
      else
        other_scope.exist?(variable_name)
      end
  else # rubocop:disable Layout/ElseAlignment
    next_scope = inherited_scope || enclosing_scope
    effective_symtable(true).include?(name) || next_scope && next_scope.exist?(name) || BUILT_IN_VARS.include?(name)
  end # rubocop:disable Layout/EndAlignment
end