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genesis.go
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/
genesis.go
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package genesis
import (
_ "embed"
"github.com/golang/snappy"
"github.com/prysmaticlabs/prysm/v4/beacon-chain/state"
state_native "github.com/prysmaticlabs/prysm/v4/beacon-chain/state/state-native"
ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
)
var embeddedStates = map[string]*[]byte{}
// State returns a copy of the genesis state from a hardcoded value.
func State(name string) (state.BeaconState, error) {
sb, exists := embeddedStates[name]
if exists {
return load(*sb)
}
return nil, nil
}
// load a compressed ssz state file into a beacon state struct.
func load(b []byte) (state.BeaconState, error) {
st := ðpb.BeaconState{}
b, err := snappy.Decode(nil /*dst*/, b)
if err != nil {
return nil, err
}
if err := st.UnmarshalSSZ(b); err != nil {
return nil, err
}
return state_native.InitializeFromProtoUnsafePhase0(st)
}