attempt to index trim 'local' (a nil value)

[hjf1223]

Hi

I try to use goluago library, but I got the error:

runtime error: scripts/gointeroperate.lua:3: attempt to index trim 'local' (a nil value)

The lua script is:

require("goluago/strings")

strings.trim("loll ")

Invoking the script like this:

package main

import (
    "gitlab.meitu.com/pl_storage/atlas/atlas-devops/data"
    "github.com/Shopify/go-lua"
    "github.com/Shopify/goluago"
    "fmt"
)

type LuaProcessor struct {
    L      *lua.State
    Script string
}

// script: the lua script file name
func NewLuaProcessor(script string) *LuaProcessor {
    l := lua.NewState()
    lua.OpenLibraries(l)
    goluago.Open(l)

    return &LuaProcessor{L:l, Script:script}
}
func (processor *LuaProcessor) Process(taskIndex int, record data.Record) (size int32, err error) {
    if err := lua.DoFile(processor.L, processor.Script); err != nil {
        fmt.Print(err)
    }
    return 0, nil
}

func ExampleLuaProcessor_GoInteroperate()  {
    processor := NewLuaProcessor("scripts/gointeroperate.lua")

    processor.Process(1, nil)

    //Output:Hello World from Lua file!
}

Any helps? thanks.

[hjf1223]

I have tried on go 1.5 and 1.4.2, both don't work.