// dominating block. The efficacy of this pass depends heavily on the
	// efficacy of the cse pass.
	sdom := f.Sdom()

	// TODO: Eliminate more nil checks.
	// We can recursively remove any chain of fixed offset calculations,
	// i.e. struct fields and array elements, even with non-constant
	// indices: x is non-nil iff x.a.b[i].c is.

	type walkState int
	const (

		ae := audit.AuditEventFrom(r.Context())
		if ae == nil {
			t.Error("unexpected nil audit event")
		}

		// confirm that the indirect way of setting audit annotations later in the chain also works
		audit.AddAuditAnnotation(r.Context(), "dogs", "are okay")

		if _, err := w.Write([]byte("done")); err != nil {
			t.Errorf("failed to write response: %v", err)
		}
	}), c)

    }

    /**
     * When a module is depended on via a single chained path, it is excluded if excluded on any of the links in that path.
     *
     * Dependency graph:
     * a -> b -> c -> d
     */
    def "when a module is depended on via a single chained path, it is excluded if excluded on any of the links in that path (#name)"() {
        given:

The target machine expresses which machines the application expects to run.
A target machine is identified by its operating system and architecture.
Gradle uses the target machine to decide which tool chain to choose based on availability on the host machine.

The target machine can be configured as follows:

.Configure application target machines
====

        expect:
        def result = resolve(include('TEST(FILENAME, _NAME, ~)'))
        result.complete
        result.files.file as List == [header]
    }

    def "can chain token concatenations with parameter substitutions"() {
        given:
        def header = systemIncludeDir.createFile("test.h")

        macros << macro("FILENAME", '"test.h"')

type Stage string

// Valid audit stages.
const (
	// The stage for events generated as soon as the audit handler receives the request, and before it
	// is delegated down the handler chain.
	StageRequestReceived Stage = "RequestReceived"
	// The stage for events generated once the response headers are sent, but before the response body
	// is sent. This stage is only generated for long-running requests (e.g. watch).

The target machine expresses which machines the application expects to run.
A target machine is identified by its operating system and architecture.
Gradle uses the target machine to decide which tool chain to choose based on availability on the host machine.

The target machine can be configured as follows:

.Configure application target machines
====

func NewImageFetcher(ctx context.Context, opt ImageFetcherOption) *ImageFetcher {
	fetchOpts := make([]remote.Option, 0, 2)
	// TODO(mathetake): have "Anonymous" option?
	if opt.useDefaultKeyChain() {
		// Note that default key chain reads the docker config from DOCKER_CONFIG
		// so must set the envvar when reaching this branch is expected.
		fetchOpts = append(fetchOpts, remote.WithAuthFromKeychain(authn.DefaultKeychain))
	} else {

		return nil, nil, errCorrupt // more likely our math is wrong
	}

	// Link record into hash chain, making sure not to introduce a duplicate.
	// We know name does not appear in the chain starting at head.
	for {
		next.Store(head)
		if m.cas32(headOff, head, start) {
			return v, nil, nil
		}

		// Check new elements in chain for duplicates.
		old := head
		head = m.load32(headOff)
		for off := head; off != old; {

          break;
        }
      }
    }
  }

  /**
   * Represents a detected cycle in lock acquisition ordering. The exception includes a causal chain
   * of {@code ExampleStackTrace} instances to illustrate the cycle, e.g.
   *
   * <pre>
   * com....PotentialDeadlockException: Potential Deadlock from LockC -&gt; ReadWriteA
   *   at ...
   *   at ...