if (func.isExternal()) {
    // Just ignore the op if this is an external func with no body.
    return;
  }

  tf_executor::GraphOp graph_op;

  if (llvm::hasSingleElement(func.front().without_terminator())) {
    graph_op = dyn_cast<tf_executor::GraphOp>(func.front().front());
  }

  if (!graph_op) {
    func.emitError("expected function to contain only a graph_op");
    signalPassFailure();
    return;

			}
		}
	}
	return true
}

// A Graph is a collection of nodes. A node may have an arbitrary number
// of edges. An edge connects two nodes. Both nodes and edges must be
// comparable. This is an undirected simple graph.
type _Graph[_Node _NodeC[_Edge], _Edge _EdgeC[_Node]] struct {
	nodes []_Node
}

// _NodeC is the constraints on a node in a graph, given the _Edge type.
type _NodeC[_Edge any] interface {

#graph {
    cursor: grab;
}

#graph:active {
    cursor: grabbing;

  private ImmutableValueGraph(ValueGraph<N, V> graph) {
    super(ValueGraphBuilder.from(graph), getNodeConnections(graph), graph.edges().size());
  }

  /** Returns an immutable copy of {@code graph}. */
  public static <N, V> ImmutableValueGraph<N, V> copyOf(ValueGraph<N, V> graph) {
    return (graph instanceof ImmutableValueGraph)
        ? (ImmutableValueGraph<N, V>) graph
        : new ImmutableValueGraph<N, V>(graph);
  }

	// 	is graphic rune
	// 	is number rune
	// 	is printable rune
	// For '!':
	// 	is graphic rune
	// 	is printable rune
	// 	is punct rune
	// For ' ':
	// 	is graphic rune
	// 	is printable rune
	// 	is space rune
	// For '℃':
	// 	is graphic rune
	// 	is printable rune
	// 	is symbol rune
	// For 'ᾭ':
	// 	is graphic rune
	// 	is letter rune
	// 	is printable rune
	// 	is title case rune

	virtual     bool
	virtualLock sync.RWMutex
	// when processing an Update event, we need to compare the updated
	// ownerReferences with the owners recorded in the graph.
	owners []metav1.OwnerReference
}

// clone() must only be called from the single-threaded GraphBuilder.processGraphChanges()
func (n *node) clone() *node {
	c := &node{
		identity:           n.identity,

 */

package com.google.common.graph;

import com.google.common.annotations.Beta;
import com.google.errorprone.annotations.DoNotMock;

/**
 * A functional interface for <a
 * href="https://en.wikipedia.org/wiki/Graph_(discrete_mathematics)">graph</a>-structured data.
 *
 * <p>This interface is meant to be used as the type of a parameter to graph algorithms (such as

/**
 * A factory for creating {@link Isolatable} instances from an object graph. These hold a snapshot of the object graph's state and can be used to:
 *
 * <ul>
 * <li>Create isolated instances from that state to pass to user code, see {@link Isolatable} for more details.</li>
 * <li>Calculate a hash of the state. If you only need to calculate hashes of object graphs, then consider using {@link org.gradle.internal.snapshot.ValueSnapshotter} instead,

  @SuppressWarnings("Immutable") // The backing graph must be immutable.
  private final BaseGraph<N> backingGraph;

  ImmutableGraph(BaseGraph<N> backingGraph) {
    this.backingGraph = backingGraph;
  }

  /** Returns an immutable copy of {@code graph}. */
  public static <N> ImmutableGraph<N> copyOf(Graph<N> graph) {
    return (graph instanceof ImmutableGraph)
        ? (ImmutableGraph<N>) graph
        : new ImmutableGraph<N>(

	for _, tt := range quotetests {
		if out := QuoteToGraphic(tt.in); out != tt.graphic {
			t.Errorf("QuoteToGraphic(%s) = %s, want %s", tt.in, out, tt.graphic)
		}
		if out := AppendQuoteToGraphic([]byte("abc"), tt.in); string(out) != "abc"+tt.graphic {
			t.Errorf("AppendQuoteToGraphic(%q, %s) = %s, want %s", "abc", tt.in, out, "abc"+tt.graphic)
		}
	}
}

func BenchmarkQuote(b *testing.B) {
	for i := 0; i < b.N; i++ {