func Test_validIPSetType(t *testing.T) {
	testCases := []struct {
		setType   Type
		expectErr bool
	}{
		{ // case[0]
			setType:   Type("foo"),
			expectErr: true,
		},
		{ // case[1]
			setType:   HashIPPortNet,
			expectErr: false,
		},
		{ // case[2]
			setType:   HashIPPort,
			expectErr: false,
		},
		{ // case[3]
			setType:   HashIPPortIP,
			expectErr: false,
		},
		{ // case[4]

		n.SetType(nil)
		return n
	}
	if !n.Y.Type().IsInteger() {
		n.SetType(nil)
		return n
	}
	n.SetType(n.X.Type())
	return n
}

// tcUnsafeSlice typechecks an OUNSAFESLICE node.
func tcUnsafeSlice(n *ir.BinaryExpr) *ir.BinaryExpr {
	n.X = Expr(n.X)
	n.Y = Expr(n.Y)
	if n.X.Type() == nil || n.Y.Type() == nil {
		n.SetType(nil)
		return n
	}

	}
}

func TestExtensionsByType(t *testing.T) {
	cleanup := setMimeInit(func() {
		clearMimeTypes()
		setType(".gif", "image/gif")
		setType(".a", "foo/letter")
		setType(".b", "foo/letter")
		setType(".B", "foo/letter")
		setType(".PNG", "image/png")
	})
	defer cleanup()

	tests := []struct {
		typ     string
		want    []string
		wantErr string
	}{

	testCases := []struct {
		name            string
		set             *utilipset.IPSet
		setType         utilipset.Type
		ipv6            bool
		activeEntries   []string
		currentEntries  []string
		expectedEntries []string
	}{
		{
			name: "normal ipset sync",
			set: &utilipset.IPSet{
				Name: "foo",
			},
			setType:         utilipset.HashIPPort,
			ipv6:            false,

	if t == nil || r.Type() == nil {
		n.SetType(nil)
		return n
	}
	switch t.Kind() {
	default:
		base.Errorf("invalid operation: %v (type %v does not support indexing)", n, t)
		n.SetType(nil)
		return n

	case types.TSTRING, types.TARRAY, types.TSLICE:
		n.Index = indexlit(n.Index)
		if t.IsString() {
			n.SetType(types.ByteType)
		} else {
			n.SetType(t.Elem())
		}
		why := "string"

	args := []string{"create", set.Name, string(set.SetType)}
	if set.SetType == HashIPPortIP || set.SetType == HashIPPort || set.SetType == HashIPPortNet || set.SetType == HashIP {
		args = append(args,
			"family", set.HashFamily,
			"hashsize", strconv.Itoa(set.HashSize),
			"maxelem", strconv.Itoa(set.MaxElem),
		)
	}
	if set.SetType == BitmapPort {
		args = append(args, "range", set.PortRange)
	}

	sort.Sort(typelinks)

	tl := ldr.CreateSymForUpdate("runtime.typelink", 0)
	tl.SetType(sym.STYPELINK)
	ldr.SetAttrLocal(tl.Sym(), true)
	tl.SetSize(int64(4 * len(typelinks)))
	tl.Grow(tl.Size())
	relocs := tl.AddRelocs(len(typelinks))
	for i, s := range typelinks {
		r := relocs.At(i)
		r.SetSym(s.Type)
		r.SetOff(int32(i * 4))
		r.SetSiz(4)
		r.SetType(objabi.R_ADDROFF)
	}

	ptrsize := ctxt.Arch.PtrSize

            replaceExpr(expr.getExpression()));
        result.setType(expr.getType());
        result.setSourcePosition(expr);
        replaceVisitedExpressionWith(result);
    }

    @Override
    public void visitNotExpression(NotExpression expr) {
        NotExpression result = new NotExpression(
            replaceExpr(expr.getExpression()));
        result.setType(expr.getType());
        result.setSourcePosition(expr);

        pluginDescriptor.setArtifactId("artifactId");
        mojoDescriptor.setPluginDescriptor(pluginDescriptor);

        Parameter parameter = new Parameter();
        parameter.setType("java.lang.String[]");
        parameter.setName("toAddresses");

        parameter.setRequired(true);

        PluginParameterException exception =

			break
		}
		n = ir.NewConstExpr(v, n)
		n.SetType(t)
		return n

	case ir.OPLUS, ir.ONEG, ir.OBITNOT, ir.ONOT, ir.OREAL, ir.OIMAG:
		ot := operandType(n.Op(), t)
		if ot == nil {
			n = DefaultLit(n, nil)
			break
		}

		n := n.(*ir.UnaryExpr)
		n.X = convlit(n.X, ot)
		if n.X.Type() == nil {
			n.SetType(nil)
			return n
		}
		n.SetType(t)
		return n