Method MetaTable

lua.go:1048–1063

MetaTable pushes onto the stack the metatable of the value at index. If the value at index does not have a metatable, the function returns false and nothing is put onto the stack. http://www.lua.org/manual/5.2/manual.html#lua_getmetatable

(index int)

//
// http://www.lua.org/manual/5.2/manual.html#lua_getmetatable
func (l *State) MetaTable(index int) bool {
	var mt *table
	switch v := l.indexToValue(index).(type) {
	case *table:
		mt = v.metaTable
	case *userData:
		mt = v.metaTable
	default:
		mt = l.global.metaTable(v)
	}
	if mt == nil {
		return false
	}
	l.apiPush(mt)
	return true
}

// UserValue pushes onto the stack the Lua value associated with the userdata
// at index.  This value must be a table or nil.