internal/engine/func.go - master - t3/cli

package engine

import (
	"fmt"
	"runtime"

	"github.com/dop251/goja"
)

type Func struct {
	v goja.Callable
}

func newFunc(v goja.Callable) *Func {
	return &Func{
		v: v,
	}
}

func (fn *Func) Call(args ...goja.Value) (result goja.Value, err error) {
	defer func() {
		if r := recover(); r != nil {
			buf := make([]byte, 4096)
			n := runtime.Stack(buf, false)
			err = fmt.Errorf("panic in js function: %v\nstack:\n%s", r, buf[:n])
		}
	}()
	return fn.v(goja.Undefined(), args...)
}