vendor/github.com/hashicorp/terraform/terraform/transform_transitive_reduction.go

   1 package terraform
   2
   3 // TransitiveReductionTransformer is a GraphTransformer that performs
   4 // finds the transitive reduction of the graph. For a definition of
   5 // transitive reduction, see Wikipedia.
   6 type TransitiveReductionTransformer struct{}
   7
   8 func (t *TransitiveReductionTransformer) Transform(g *Graph) error {
   9         // If the graph isn't valid, skip the transitive reduction.
  10         // We don't error here because Terraform itself handles graph
  11         // validation in a better way, or we assume it does.
  12         if err := g.Validate(); err != nil {
  13                 return nil
  14         }
  15
  16         // Do it
  17         g.TransitiveReduction()
  18
  19         return nil
  20 }