namespace {

// Return in 'sorted' a topological sort of clusters according to the
// dependencies encoded in ancestors. clusters is the list of all clusters
// including clusters that are not present in the ancestors map. has_successors
// is the set of clusters that are ancestors of some other cluster.
void TopologicalClusterSort(
    const absl::flat_hash_set<string>& clusters,
    const absl::flat_hash_set<string>& has_successors,

// RUN: tf-opt %s -tf-device-decompose-resource-ops-in-cluster | FileCheck -check-prefixes=CHECK,CLUSTER-ONLY %s

// Tests different behavior of two passes if the op is outside cluster
// tf-device-decompose-resource-ops would always decompose the resource op.
// tf-device-decompose-resource-ops-in-cluster would not decompose ops outside
// cluster or functions transitively called from within clusters.

// CHECK-LABEL: func @decomposition_outside_cluster

	"--cloud-provider=gce",
	"--cluster-cidr=1.2.3.4/24",
	"--cluster-name=k8s",
	"--cluster-signing-cert-file=/cluster-signing-cert",
	"--cluster-signing-key-file=/cluster-signing-key",
	"--cluster-signing-kubelet-serving-cert-file=/cluster-signing-kubelet-serving/cert-file",
	"--cluster-signing-kubelet-serving-key-file=/cluster-signing-kubelet-serving/key-file",

		},
		{
			Hostname: "baz.svc.cluster.local",
			Ports:    port7443,
			Attributes: ServiceAttributes{
				Name:      "baz",
				Namespace: "ns3",
			},
		},
		{
			Hostname: "bar.svc.cluster.local",
			Ports:    port7442,
			Attributes: ServiceAttributes{
				Name:      "bar",
				Namespace: "ns2",
			},
		},
		{
			Hostname: "barprime.svc.cluster.local",
			Ports:    port7442,

      "version_info": "2024-03-04T08:37:44Z/4",
      "dynamic_active_clusters": [
        {
          "cluster": {
            "@type": "type.googleapis.com/envoy.config.cluster.v3.Cluster",
            "name": "inbound-vip|9080|http|ratings.default.svc.cluster.local",
            "type": "EDS",
            "eds_cluster_config": {
              "eds_config": {
                "ads": {},

              "resource": "apiservices",
              "responseKind": {
                "group": "",
                "kind": "APIService",
                "version": ""
              },
              "scope": "Cluster",
              "singularResource": "apiservice",
              "subresources": [
                {
                  "responseKind": {
                    "group": "",
                    "kind": "APIService",

    home: https://min.io
    icon: https://min.io/resources/img/logo/MINIO_wordmark.png
    keywords:
    - minio
    - storage
    - object-storage
    - s3
    - cluster
    maintainers:
    - email: ******@****.***
      name: MinIO, Inc
    name: minio
    sources:
    - https://github.com/minio/minio
    urls:
    - https://charts.min.io/helm-releases/minio-5.2.0.tgz

              "resource": "apiservices",
              "responseKind": {
                "group": "",
                "kind": "APIService",
                "version": ""
              },
              "scope": "Cluster",
              "singularResource": "apiservice",
              "subresources": [
                {
                  "responseKind": {
                    "group": "",
                    "kind": "APIService",

	// Required.
	Resources []string

	// scope specifies the scope of this rule.
	// Valid values are "Cluster", "Namespaced", and "*"
	// "Cluster" means that only cluster-scoped resources will match this rule.
	// Namespace API objects are cluster-scoped.
	// "Namespaced" means that only namespaced resources will match this rule.
	// "*" means that there are no scope restrictions.

          },
          "last_updated": "2023-12-26T05:57:09.898Z"
        }
      ],
      "dynamic_active_clusters": [
        {
          "cluster": {
            "@type": "type.googleapis.com/envoy.config.cluster.v3.Cluster",
            "name": "inbound-vip|8000|http|httpbin.default.svc.cluster.local",
            "type": "EDS",
            "eds_cluster_config": {
              "eds_config": {
                "ads": {},