#
# Author: Seth Vargo <sethvargo@gmail.com>
#
# Copyright 2014 Chef Software, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

module Falcore
  class NullObject < BasicObject
    ARRAY   = []
    INTEGER = 0
    FLOAT   = 0.0
    STRING  = ''
    INSPECT = 'nil'

    def nil?
      true
    end
    alias_method :empty?, :nil?

    def to_a
      ARRAY.dup
    end

    def to_i
      INTEGER
    end

    def to_f
      FLOAT
    end

    def to_s
      STRING.dup
    end

    def inspect
      INSPECT.dup
    end

    def method_missing(m, *args, &block)
      self
    end
  end
end