How to solve precision problem in tengo?

[yayakoBlessing]

Hi, thanks for such a great project!

How to solve precision problem in tengo?

json := import("json")
fmt := import("fmt")


base_info := bytes(`{
        "1":7075984636689534001,
        "2":7075984636689534002
}`)
m := json.decode(base_info)
fmt.println(m[1])

result: 7075984636689534000

[geseq]

I think this might be due to the Go json package parsing numbers as floats. I’m not sure you can do anything other than write a custom parser for your use case

[yayakoBlessing]

Thanks for replying. Does Tengo support for custom parsers? Or should I realize it in another way.

[geseq]

Tengo’s json parsing is built off of Go’s but yes you can fairly easily modify it and create your own json library. This might help you get started:

tengo/stdlib/json/decode.go

Line 210 in f90d433

if c != '-' && (c < '0' || c > '9') {

[yayakoBlessing]

Thanks, help me a lot!