1 files changed, 51 insertions, 0 deletions
diff --git a/vendor/github.com/hashicorp/terraform/terraform/transform_resource_count.go b/vendor/github.com/hashicorp/terraform/terraform/transform_resource_count.go
new file mode 100644
index 00000000..cda35cb7
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/terraform/transform_resource_count.go
@@ -0,0 +1,51 @@
+package terraform
+
+import (
+	"fmt"
+
+	"github.com/hashicorp/terraform/dag"
+)
+
+// ResourceCountTransformer is a GraphTransformer that expands the count
+// out for a specific resource.
+//
+// This assumes that the count is already interpolated.
+type ResourceCountTransformer struct {
+	Concrete ConcreteResourceNodeFunc
+
+	Count int
+	Addr  *ResourceAddress
+}
+
+func (t *ResourceCountTransformer) Transform(g *Graph) error {
+	// Don't allow the count to be negative
+	if t.Count < 0 {
+		return fmt.Errorf("negative count: %d", t.Count)
+	}
+
+	// For each count, build and add the node
+	for i := 0; i < t.Count; i++ {
+		// Set the index. If our count is 1 we special case it so that
+		// we handle the "resource.0" and "resource" boundary properly.
+		index := i
+		if t.Count == 1 {
+			index = -1
+		}
+
+		// Build the resource address
+		addr := t.Addr.Copy()
+		addr.Index = index
+
+		// Build the abstract node and the concrete one
+		abstract := &NodeAbstractResource{Addr: addr}
+		var node dag.Vertex = abstract
+		if f := t.Concrete; f != nil {
+			node = f(abstract)
+		}
+
+		// Add it to the graph
+		g.Add(node)
+	}
+
+	return nil
+}