Module: RefCheck
- Included in:
- Array, CfnDsl::JSONable, Hash
- Defined in:
- lib/cfndsl/ref_check.rb
Overview
This module defines some methods for walking the reference tree of various objects.
Instance Method Summary collapse
-
#build_references(refs) ⇒ Object
Build up a set of references.
- #ref_children ⇒ Object
Instance Method Details
#build_references(refs) ⇒ Object
Build up a set of references.
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# File 'lib/cfndsl/ref_check.rb', line 7 def build_references(refs) raise 'Circular reference' if @_visited @_visited = true if respond_to?(:all_refs) all_refs.each do |ref| refs[ref.to_s] = 1 end end ref_children.each do |elem| elem.build_references(refs) if elem.respond_to?(:build_references) end @_visited = nil refs end |
#ref_children ⇒ Object
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# File 'lib/cfndsl/ref_check.rb', line 27 def ref_children [] end |