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utils.go
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utils.go
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package interfaces
import (
"github.com/pkg/errors"
ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
)
// SignedBeaconBlockHeaderFromBlock function to retrieve signed block header from block.
func SignedBeaconBlockHeaderFromBlock(block *ethpb.SignedBeaconBlock) (*ethpb.SignedBeaconBlockHeader, error) {
if block.Block == nil || block.Block.Body == nil {
return nil, errors.New("nil block")
}
bodyRoot, err := block.Block.Body.HashTreeRoot()
if err != nil {
return nil, errors.Wrap(err, "failed to get body root of block")
}
return ðpb.SignedBeaconBlockHeader{
Header: ðpb.BeaconBlockHeader{
Slot: block.Block.Slot,
ProposerIndex: block.Block.ProposerIndex,
ParentRoot: block.Block.ParentRoot,
StateRoot: block.Block.StateRoot,
BodyRoot: bodyRoot[:],
},
Signature: block.Signature,
}, nil
}
// SignedBeaconBlockHeaderFromBlockInterface function to retrieve signed block header from block.
func SignedBeaconBlockHeaderFromBlockInterface(sb ReadOnlySignedBeaconBlock) (*ethpb.SignedBeaconBlockHeader, error) {
b := sb.Block()
if b.IsNil() || b.Body().IsNil() {
return nil, errors.New("nil block")
}
h, err := BeaconBlockHeaderFromBlockInterface(b)
if err != nil {
return nil, errors.Wrap(err, "failed to get block header of block")
}
sig := sb.Signature()
return ðpb.SignedBeaconBlockHeader{
Header: h,
Signature: sig[:],
}, nil
}
// BeaconBlockHeaderFromBlock function to retrieve block header from block.
func BeaconBlockHeaderFromBlock(block *ethpb.BeaconBlock) (*ethpb.BeaconBlockHeader, error) {
if block.Body == nil {
return nil, errors.New("nil block body")
}
bodyRoot, err := block.Body.HashTreeRoot()
if err != nil {
return nil, errors.Wrap(err, "failed to get body root of block")
}
return ðpb.BeaconBlockHeader{
Slot: block.Slot,
ProposerIndex: block.ProposerIndex,
ParentRoot: block.ParentRoot,
StateRoot: block.StateRoot,
BodyRoot: bodyRoot[:],
}, nil
}
// BeaconBlockHeaderFromBlockInterface function to retrieve block header from block.
func BeaconBlockHeaderFromBlockInterface(block ReadOnlyBeaconBlock) (*ethpb.BeaconBlockHeader, error) {
if block.Body().IsNil() {
return nil, errors.New("nil block body")
}
bodyRoot, err := block.Body().HashTreeRoot()
if err != nil {
return nil, errors.Wrap(err, "failed to get body root of block")
}
parentRoot := block.ParentRoot()
stateRoot := block.StateRoot()
return ðpb.BeaconBlockHeader{
Slot: block.Slot(),
ProposerIndex: block.ProposerIndex(),
ParentRoot: parentRoot[:],
StateRoot: stateRoot[:],
BodyRoot: bodyRoot[:],
}, nil
}