encoding/json: unexpected result when json.Unmarshaling #38126
Description
What version of Go are you using (go version)?
$ go version go version go1.14.1 windows/amd64
Does this issue reproduce with the latest release?
Yes, it reproduces with the latest release.
What operating system and processor architecture are you using (go env)?
go env Output
$ go env set GO111MODULE=on set GOARCH=amd64 set GOBIN= set GOEXE=.exe set GOFLAGS= set GOHOSTARCH=amd64 set GOHOSTOS=windows set GOINSECURE= set GONOPROXY= set GONOSUMDB= set GOOS=windows
What did you do?
My struct has a string field with a json:"string" field tag. When this field contains escaped character, I get unexcepted result when doing roundtrip test.
type T struct {
F1 string `json:"F1,string"`
}
t := T {
"aaa\tbbb",
}
b, _ := json.Marshal(t)
if err := json.Unmarshal(b, &t); err == nil {
fmt.Printf("%+v\n", t)
}else {
fmt.Println(err)
}What did you expect to see?
{F1:aaa bbb}
What did you see instead?
json: invalid use of ,string struct tag, trying to unmarshal "\"aaa\tbbb\"" into string