call qlang functions in golang

call-qlang-func-in-golang.go

package main

import (
	"log"
	"os"

	"qlang.io/exec.v2"
	"qlang.io/qlang.v2/qlang"
	qall "qlang.io/qlang/qlang.all" // 导入 builtin 包
)

var code = `
	greet = fn(a, b) {
		return a + b
	}
`

func main() {
	qall.InitSafe(false)
	lang, err := qlang.New(qlang.InsertSemis)
	lang.SetLibs(os.Getenv("QLANG_PATH"))
	if err != nil {
		log.Println(err)
		return
	}

	err = lang.SafeExec([]byte(code), "")
	if err != nil {
		log.Println(err)
		return
	}

	greet, ok := lang.Var("greet")

	if ok {
		if g, ok := greet.(*exec.Function); ok {
			log.Println(g.Call(1, 2))
		} else {
			log.Printf("%T", greet)
		}
	} else {
		log.Println("Can not get greet var in code")
	}
}