Function IsPreDefinedType

x/keys.go:922–925

IsPreDefinedType returns true only if the typ has been defined by dgraph internally. For example, `dgraph.graphql` or ACL types are defined in the initial internal types. We reserve `dgraph.` as the namespace for the types/predicates we may create in future. So, users are not allowed to create a pr

(typ string)

//
// Pre-defined types are subset of reserved types.
func IsPreDefinedType(typ string) bool {
	_, ok := preDefinedTypeMap[ParseAttr(typ)]
	return ok
}

// isReservedName returns true if the given name is prefixed with `dgraph.`
func isReservedName(name string) bool {