// with older encodings for net.IP. See golang.org/issue/6760.
	// } else if ok, indir := implementsInterface(ut.user, textMarshalerInterfaceType); ok {
	// 	ut.externalEnc, ut.encIndir = xText, indir
	// }

	if ok, indir := implementsInterface(ut.user, gobDecoderInterfaceType); ok {
		ut.externalDec, ut.decIndir = xGob, indir
	} else if ok, indir := implementsInterface(ut.user, binaryUnmarshalerInterfaceType); ok {

    public static final Action<ClassNode> INSTANCE = new ClosureCreationInterceptingVerifier();

    @Override
    public void execute(ClassNode node) {
        if (node.implementsInterface(ClassHelper.GENERATED_CLOSURE_Type)) {
            RulesVisitor.visitGeneratedClosure(node);
            RuleVisitor.visitGeneratedClosure(node);
        }
    }

        then:
        obj.callsPrivateStringMethodWithGString("$foo") == "BAR"
    }

    def "class can implement interface methods using Groovy property"() {
        when:
        def i = create(ImplementsInterface)
        i.prop = "prop"

        then:
        i.prop == "prop"
    }

    def "property missing implementation is invoked exactly once, with actual value"() {
        given:

        } else {
            return Collections.singleton(statement);
        }
    }

    public static MethodNode getGeneratedClosureImplMethod(ClassNode classNode) {
        if (!classNode.implementsInterface(ClassHelper.GENERATED_CLOSURE_Type)) {
            throw new IllegalArgumentException("expecting generated closure class node");
        }