# File lib/rr/injections/injection.rb, line 5
5:         def instances
6:           @instances ||= HashWithObjectIdKey.new
7:         end

    # File lib/rr/injections/injection.rb, line 12
12:       def subject_has_method_defined?(method_name_in_question)
13:         ClassInstanceMethodDefined.call(subject_class, method_name_in_question)
14:       end

    # File lib/rr/injections/injection.rb, line 16
16:       def subject_has_original_method?
17:         subject_has_method_defined?(original_method_alias_name)
18:       end

    # File lib/rr/injections/injection.rb, line 21
21:       def subject_respond_to_method?(subject, method_name)
22:         subject_has_method_defined?(method_name) ||
23:           ClassInstanceMethodDefined.call(subject_class, :respond_to?) &&
24:           subject.respond_to?(method_name)
25:       end