func()

in mfg/verify.go [127:155]

• 23 lines of code
• 6 McCabe index (conditional complexity)

func (m *Mfg) VerifyStructure(eraseVal byte) error {
	for _, t := range m.Tlvs() {
		// Verify that TLV has a valid `type` field.
		body, err := t.StructuredBody()
		if err != nil {
			return err
		}

		// Verify contents of hash TLV.
		switch t.Header.Type {
		case META_TLV_TYPE_HASH:
			hashBody := body.(*MetaTlvBodyHash)

			hash, err := m.RecalcHash(eraseVal)
			if err != nil {
				return err
			}

			if !bytes.Equal(hash, hashBody.Hash[:]) {
				return errors.Errorf(
					"mmr contains incorrect hash: have=%s want=%s",
					hex.EncodeToString(hashBody.Hash[:]),
					hex.EncodeToString(hash))
			}
		}
	}

	return nil
}