cycle struct cite cause stack over flow

[chenchu2014]

type struct A {b B} type struct B {a A}

will cause stack over flow, think of cycle cite check?

[andeya]

which func?

[chenchu2014]

github.com/bytedance/go-tagexpr@v2.7.2+incompatible/validator/default.go:16

[andeya]

But I can't reproduce it

type (
    Issue23A struct {
        b *Issue23B
        v int64 `vd:"$==0"`
    }
    Issue23B struct {
        a *Issue23A
        v int64 `vd:"$==0"`
    }
)

func TestIssue23(t *testing.T) {
    var data = &Issue23B{a: &Issue23A{b: new(Issue23B)}}
    err := vd.Validate(data)
    assert.NoError(t, err)
}

=== RUN   TestIssue23
--- PASS: TestIssue23 (0.00s)
PASS