alphabet

package

v1.7.4 Latest Latest Go to latest Published: Apr 23, 2024 License: MIT Imports: 9 Imported by: 0

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const (
	L2ClaimBlockNumberLocalIndex = 4
)

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var (
	ErrIndexTooLarge = errors.New("index is larger than the maximum index")
)

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var PrestateProvider = &alphabetPrestateProvider{}

PrestateProvider provides the alphabet VM prestate

func BuildAlphabetPreimage(traceIndex *big.Int, claim *big.Int) []byte

BuildAlphabetPreimage constructs the claim bytes for the index and claim.

type AlphabetTraceProvider struct {
	// contains filtered or unexported fields
}

AlphabetTraceProvider is a [TraceProvider] that monotonically increments the starting l2 block number as the claim value.

func NewTraceProvider(startingBlockNumber *big.Int, depth types.Depth) *AlphabetTraceProvider

NewTraceProvider returns a new [AlphabetProvider].

func (ap *AlphabetTraceProvider) AbsolutePreStateCommitment(_ context.Context) (common.Hash, error)

func (ap *AlphabetTraceProvider) Get(ctx context.Context, i types.Position) (common.Hash, error)

Get returns the claim value at the given index in the trace.

func (ap *AlphabetTraceProvider) GetStepData(ctx context.Context, pos types.Position) ([]byte, []byte, *types.PreimageOracleData, error)