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feat: function to determine block type #449

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merged 1 commit into from
Dec 3, 2023
Merged

feat: function to determine block type #449

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28 changes: 28 additions & 0 deletions ledger/block.go
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,34 @@ func NewBlockHeaderFromCbor(blockType uint, data []byte) (BlockHeader, error) {
return nil, fmt.Errorf("unknown node-to-node block type: %d", blockType)
}

func DetermineBlockType(data []byte) (uint, error) {
if _, err := NewByronEpochBoundaryBlockFromCbor(data); err == nil {
return BlockTypeByronEbb, nil
}
if _, err := NewByronMainBlockFromCbor(data); err == nil {
return BlockTypeByronMain, nil
}
if _, err := NewShelleyBlockFromCbor(data); err == nil {
return BlockTypeShelley, nil
}
if _, err := NewAllegraBlockFromCbor(data); err == nil {
return BlockTypeAllegra, nil
}
if _, err := NewMaryBlockFromCbor(data); err == nil {
return BlockTypeMary, nil
}
if _, err := NewAlonzoBlockFromCbor(data); err == nil {
return BlockTypeAlonzo, nil
}
if _, err := NewBabbageBlockFromCbor(data); err == nil {
return BlockTypeBabbage, nil
}
if _, err := NewConwayBlockFromCbor(data); err == nil {
return BlockTypeConway, nil
}
return 0, fmt.Errorf("unknown block type")
}

func generateBlockHeaderHash(data []byte, prefix []byte) string {
// We can ignore the error return here because our fixed size/key arguments will
// never trigger an error
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