[[sec:swift_supported_tool_chain]]
=== Supported tool chain

Gradle support the https://swift.org/download/[official Swift tool chain for macOS and Linux].
When you build a native binary, Gradle will attempt to locate a tool chain installed on your machine that can build the binary.
Gradle select the first tool chain that can build for the target operating system, architecture and Swift language support.

   */
  abstract void collectOneValue(int index, @ParametricNullness InputT returnValue);

  abstract void handleAllCompleted();

  /** Adds the chain to the seen set, and returns whether all the chain was new to us. */
  private static boolean addCausalChain(Set<Throwable> seen, Throwable param) {
    // Declare a "true" local variable so that the Checker Framework will infer nullness.

   */
  abstract void collectOneValue(int index, @ParametricNullness InputT returnValue);

  abstract void handleAllCompleted();

  /** Adds the chain to the seen set, and returns whether all the chain was new to us. */
  private static boolean addCausalChain(Set<Throwable> seen, Throwable param) {
    // Declare a "true" local variable so that the Checker Framework will infer nullness.

          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 ...

 * ```
 *
 * As expected, this fails with a certificate pinning exception:
 *
 * ```java
 * javax.net.ssl.SSLPeerUnverifiedException: Certificate pinning failure!
 * Peer certificate chain:
 *     sha256/afwiKY3RxoMmLkuRW1l7QsPZTJPwDS2pdDROQjXw8ig=: CN=publicobject.com, OU=PositiveSSL
 *     sha256/klO23nT2ehFDXCfx3eHTDRESMz3asj1muO+4aIdjiuY=: CN=COMODO RSA Secure Server CA

   * status and second by priority, you might use {@code byStatus.compound(byPriority)}. For a
   * compound ordering with three or more components, simply chain multiple calls to this method.
   *
   * <p>An ordering produced by this method, or a chain of calls to this method, is equivalent to
   * one created using {@link Ordering#compound(Iterable)} on the same component comparators.
   *

}

func (s *state) evalChainNode(dot reflect.Value, chain *parse.ChainNode, args []parse.Node, final reflect.Value) reflect.Value {
	s.at(chain)
	if len(chain.Field) == 0 {
		s.errorf("internal error: no fields in evalChainNode")
	}
	if chain.Node.Type() == parse.NodeNil {
		s.errorf("indirection through explicit nil in %s", chain)
	}

func (s preparedGenericAPIServer) NonBlockingRunWithContext(ctx context.Context, shutdownTimeout time.Duration) (<-chan struct{}, <-chan struct{}, error) {
	// Use an internal stop channel to allow cleanup of the listeners on error.
	internalStopCh := make(chan struct{})
	var stoppedCh <-chan struct{}
	var listenerStoppedCh <-chan struct{}
	if s.SecureServingInfo != nil && s.Handler != nil {
		var err error

            }

            def chain = providers
                .systemProperty("foo")
                .orElse(providers.systemProperty("bar"))
                .map { "foo | bar = $it" }
                .orElse(providers.systemProperty("baz"))
                .map { "($it)" }

            tasks.register("ok", PrintValueTask.class) { task ->
                task.value = chain
            }
        '''

 *    other properties.
 *
 * Certificates are signed by other certificates and a sequence of them is called a certificate
 * chain. The chain terminates in a self-signed "root" certificate. Signing certificates in the
 * middle of the chain are called "intermediates". Organizations that offer certificate signing are
 * called certificate authorities (CAs).
 *