opentofu/internal/tofu/transform_transitive_reduction.go
namgyalangmo cb2e9119aa
Update copyright notice (#1232)
Signed-off-by: namgyalangmo <75657887+namgyalangmo@users.noreply.github.com>
2024-02-08 09:48:59 +00:00

26 lines
783 B
Go

// Copyright (c) The OpenTofu Authors
// SPDX-License-Identifier: MPL-2.0
// Copyright (c) 2023 HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package tofu
// TransitiveReductionTransformer is a GraphTransformer that
// finds the transitive reduction of the graph. For a definition of
// transitive reduction, see [Wikipedia](https://en.wikipedia.org/wiki/Transitive_reduction).
type TransitiveReductionTransformer struct{}
func (t *TransitiveReductionTransformer) Transform(g *Graph) error {
// If the graph isn't valid, skip the transitive reduction.
// We don't error here because OpenTofu itself handles graph
// validation in a better way, or we assume it does.
if err := g.Validate(); err != nil {
return nil
}
// Do it
g.TransitiveReduction()
return nil
}