mirror of https://github.com/poanetwork/gecko.git
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package ava
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import (
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"errors"
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"github.com/ava-labs/gecko/ids"
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"github.com/ava-labs/gecko/utils/hashing"
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)
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var (
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errNilMetadata = errors.New("nil metadata is not valid")
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errMetadataNotInitialize = errors.New("metadata was never initialized and is not valid")
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)
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// Metadata ...
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type Metadata struct {
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id ids.ID // The ID of this data
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bytes []byte // Byte representation of this data
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}
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// Initialize set the bytes and ID
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func (md *Metadata) Initialize(bytes []byte) {
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md.id = ids.NewID(hashing.ComputeHash256Array(bytes))
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md.bytes = bytes
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}
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// ID returns the unique ID of this data
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func (md *Metadata) ID() ids.ID { return md.id }
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// Bytes returns the binary representation of this data
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func (md *Metadata) Bytes() []byte { return md.bytes }
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// Verify implements the verify.Verifiable interface
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func (md *Metadata) Verify() error {
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switch {
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case md == nil:
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return errNilMetadata
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case md.id.IsZero():
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return errMetadataNotInitialize
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default:
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return nil
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}
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}
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