Method IsValid

dnode/callback.go:27–29

IsValid returns true if f represents a Function. It returns false if f is the zero Value.

()

// IsValid returns true if f represents a Function.
// It returns false if f is the zero Value.
func (f Function) IsValid() bool {
	return f.Caller != nil
}

func (f Function) MarshalJSON() ([]byte, error) {
	if _, ok := f.Caller.(callback); !ok {