binding maybe infinite recurse #3791
Description
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Description
when there is no value for the 'Parent' field, the mapping maybe infinite recurse.
// form_mapping_test.go
func TestInfiniteRecursion(t *testing.T) {
type Req struct {
Parent *Req `form:"parent"`
}
var s = Req{}
err := mappingByPtr(&s, formSource{}, "form")
assert.NoError(t, err)
}
example:
my struct is below, the 'Foo2' maybe pass by query. But sometimes, I forget to pass 'foo2' in query parameters, the server will over stack
type Req struct {
Foo string `form:"foo"`
Bar string `form:"bar"`
Foo1 string `form:"Foo"`
Bar1 string `form:"Bar"`
Foo2 *Req `form:"foo2"`
}
How to reproduce
// form_mapping_test.go
func TestInfiniteRecursion(t *testing.T) {
type Req struct {
Parent *Req `form:"parent"`
}
var s = Req{}
err := mappingByPtr(&s, formSource{}, "form")
assert.NoError(t, err)
}
Expectations
binding successfully or error, but not stack overflow
Actual result
