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model.go
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model.go
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package uploader
import (
"fmt"
"io"
"github.com/fxamacker/cbor/v2"
"github.com/onflow/flow-go/engine/execution"
"github.com/onflow/flow-go/ledger"
"github.com/onflow/flow-go/model/flow"
"github.com/onflow/flow-go/module/mempool/entity"
)
type BlockData struct {
Block *flow.Block
Collections []*entity.CompleteCollection
TxResults []*flow.TransactionResult
Events []*flow.Event
TrieUpdates []*ledger.TrieUpdate
FinalStateCommitment flow.StateCommitment
}
func ComputationResultToBlockData(computationResult *execution.ComputationResult) *BlockData {
AllResults := computationResult.AllTransactionResults()
txResults := make([]*flow.TransactionResult, len(AllResults))
for i := 0; i < len(AllResults); i++ {
txResults[i] = &AllResults[i]
}
events := make([]*flow.Event, 0)
for _, e := range computationResult.AllEvents() {
events = append(events, &e)
}
trieUpdates := make(
[]*ledger.TrieUpdate,
0,
len(computationResult.ChunkExecutionDatas))
for _, chunk := range computationResult.ChunkExecutionDatas {
trieUpdates = append(trieUpdates, chunk.TrieUpdate)
}
return &BlockData{
Block: computationResult.ExecutableBlock.Block,
Collections: computationResult.ExecutableBlock.Collections(),
TxResults: txResults,
Events: events,
TrieUpdates: trieUpdates,
FinalStateCommitment: computationResult.CurrentEndState(),
}
}
func WriteComputationResultsTo(computationResult *execution.ComputationResult, writer io.Writer) error {
blockData := ComputationResultToBlockData(computationResult)
mode, err := cbor.CoreDetEncOptions().EncMode()
if err != nil {
return fmt.Errorf("cannot create deterministic cbor encoding mode: %w", err)
}
encoder := mode.NewEncoder(writer)
return encoder.Encode(blockData)
}