Global Variable of type Lua Table #129
Description
I'm sorry for bothering you guys, but I'm have hard time trying to create a global variable on go-lua of type table.
I'd not any issue to return a table from a function call (GO Lang internal func, returning a table type variable.).
But my litle tool need to create a global variable of type table with system information fields.
And it would be nice if I was able to set it as read-only. Using pure LUA, I can set a metatable, but I never did such thing using API (On this case GO code).
The part of expose a GO Lang function to LUA script and return a table as result was prety easy!
Does anybody did something like that?
For those who need return tables from GO function to Lua script, below is my code! I hope it help!
Example:
// Exposed functions table
var goFuncsTable = []lua.RegistryFunction{
{"AppEnvironment", func(l *lua.State) int { return go_exposedLuaFunction(l) } },
}
// Register functions
func UtilOpen(l *lua.State) int {
lua.NewLibrary(l, goFuncsTable)
return 1
}
// Function implementation itself
func go_exposedLuaFunction(l *lua.State) int {
l.CreateTable(0, 6)
l.PushString("1.0.0")
l.SetField(-2, "Version")
l.PushString(BuildDate)
l.SetField(-2, "BuildDate")
l.PushString(BuildTime)
l.SetField(-2, "BuildTime")
l.PushString(runtime.GOOS)
l.SetField(-2, "OS")
l.PushString(runtime.GOARCH)
l.SetField(-2, "Arch")
l.PushInteger(runtime.GOMAXPROCS(0))
l.SetField(-2, "CPUCores")
return 1 // Returning one single table
}