reflect.Pointer is not compatible with go lower than 1.18

[sorcererxw]

Describe the bug

I cannot compile my project with go 1.16.

Error message:

15# github.com/cloudwego/frugal/internal/rt
16../compile_path/pkg/mod/github.com/cloudwego/frugal@v0.1.2/internal/rt/runtime.go:120:14: undefined: reflect.Pointer

The reflect.Pointer is added to go in 1.18 golang/go@17910ed . But this package's mod version is 1.15, which has caused some misunderstandings.

Please use reflect.Ptr to ensure compatibility with lower versions.

To Reproduce

Build this project with a version of go lower than 1.18.

[gidd-bud]

+1

[chenzhuoyu]

Fixed in 4c936e8