Function Scan

proto/message.go:240–252

Scan calls fn for each protobuf field in the message b. The iteration stops when all fields have been scanned, fn returns false, or an error is seen.

(b []byte, fn func(FieldNumber, WireType, RawValue) (bool, error))

// The iteration stops when all fields have been scanned, fn returns false, or
// an error is seen.
func Scan(b []byte, fn func(FieldNumber, WireType, RawValue) (bool, error)) error {
	for len(b) != 0 {
		f, t, v, m, err := Parse(b)
		if err != nil {
			return err
		}
		if ok, err := fn(f, t, v); !ok {
			return err
		}
		b = m
	}
	return nil
}

// RawValue represents a single protobuf value.
//