core/types, internal: swap Receipt.Failed to Status

core/database_util_test.go

@@ -336,7 +336,7 @@ func TestBlockReceiptStorage(t *testing.T) {
 	db, _ := ethdb.NewMemDatabase()
 
 	receipt1 := &types.Receipt{
-		Failed:            true,
+		Status:            types.ReceiptStatusFailed,
 		CumulativeGasUsed: big.NewInt(1),
 		Logs: []*types.Log{
 			{Address: common.BytesToAddress([]byte{0x11})},

core/types/gen_receipt_json.go

@@ -14,7 +14,7 @@ import (
 func (r Receipt) MarshalJSON() ([]byte, error) {
 	type Receipt struct {
 		PostState         hexutil.Bytes  `json:"root"`
-		Failed            bool           `json:"failed"`
+		Status            hexutil.Uint   `json:"status"`
 		CumulativeGasUsed *hexutil.Big   `json:"cumulativeGasUsed" gencodec:"required"`
 		Bloom             Bloom          `json:"logsBloom"         gencodec:"required"`
 		Logs              []*Log         `json:"logs"              gencodec:"required"`
@@ -24,7 +24,7 @@ func (r Receipt) MarshalJSON() ([]byte, error) {
 	}
 	var enc Receipt
 	enc.PostState = r.PostState
-	enc.Failed = r.Failed
+	enc.Status = hexutil.Uint(r.Status)
 	enc.CumulativeGasUsed = (*hexutil.Big)(r.CumulativeGasUsed)
 	enc.Bloom = r.Bloom
 	enc.Logs = r.Logs
@@ -37,7 +37,7 @@ func (r Receipt) MarshalJSON() ([]byte, error) {
 func (r *Receipt) UnmarshalJSON(input []byte) error {
 	type Receipt struct {
 		PostState         hexutil.Bytes   `json:"root"`
-		Failed            *bool           `json:"failed"`
+		Status            *hexutil.Uint   `json:"status"`
 		CumulativeGasUsed *hexutil.Big    `json:"cumulativeGasUsed" gencodec:"required"`
 		Bloom             *Bloom          `json:"logsBloom"         gencodec:"required"`
 		Logs              []*Log          `json:"logs"              gencodec:"required"`
@@ -52,8 +52,8 @@ func (r *Receipt) UnmarshalJSON(input []byte) error {
 	if dec.PostState != nil {
 		r.PostState = dec.PostState
 	}
-	if dec.Failed != nil {
+	if dec.Status != nil {
-		r.Failed = *dec.Failed
+		r.Status = uint(*dec.Status)
 	}
 	if dec.CumulativeGasUsed == nil {
 		return errors.New("missing required field 'cumulativeGasUsed' for Receipt")

core/types/receipt.go

@@ -30,15 +30,23 @@ import (
 //go:generate gencodec -type Receipt -field-override receiptMarshaling -out gen_receipt_json.go
 
 var (
-	receiptStatusFailed     = []byte{}
+	receiptStatusFailedRLP     = []byte{}
-	receiptStatusSuccessful = []byte{0x01}
+	receiptStatusSuccessfulRLP = []byte{0x01}
+)
+
+const (
+	// ReceiptStatusFailed is the status code of a transaction if execution failed.
+	ReceiptStatusFailed = uint(0)
+
+	// ReceiptStatusSuccessful is the status code of a transaction if execution succeeded.
+	ReceiptStatusSuccessful = uint(1)
 )
 
 // Receipt represents the results of a transaction.
 type Receipt struct {
 	// Consensus fields
 	PostState         []byte   `json:"root"`
-	Failed            bool     `json:"failed"`
+	Status            uint     `json:"status"`
 	CumulativeGasUsed *big.Int `json:"cumulativeGasUsed" gencodec:"required"`
 	Bloom             Bloom    `json:"logsBloom"         gencodec:"required"`
 	Logs              []*Log   `json:"logs"              gencodec:"required"`
@@ -51,6 +59,7 @@ type Receipt struct {
 
 type receiptMarshaling struct {
 	PostState         hexutil.Bytes
+	Status            hexutil.Uint
 	CumulativeGasUsed *hexutil.Big
 	GasUsed           *hexutil.Big
 }
@@ -75,7 +84,13 @@ type receiptStorageRLP struct {
 
 // NewReceipt creates a barebone transaction receipt, copying the init fields.
 func NewReceipt(root []byte, failed bool, cumulativeGasUsed *big.Int) *Receipt {
-	return &Receipt{PostState: common.CopyBytes(root), Failed: failed, CumulativeGasUsed: new(big.Int).Set(cumulativeGasUsed)}
+	r := &Receipt{PostState: common.CopyBytes(root), CumulativeGasUsed: new(big.Int).Set(cumulativeGasUsed)}
+	if failed {
+		r.Status = ReceiptStatusFailed
+	} else {
+		r.Status = ReceiptStatusSuccessful
+	}
+	return r
 }
 
 // EncodeRLP implements rlp.Encoder, and flattens the consensus fields of a receipt
@@ -100,10 +115,10 @@ func (r *Receipt) DecodeRLP(s *rlp.Stream) error {
 
 func (r *Receipt) setStatus(postStateOrStatus []byte) error {
 	switch {
-	case bytes.Equal(postStateOrStatus, receiptStatusSuccessful):
+	case bytes.Equal(postStateOrStatus, receiptStatusSuccessfulRLP):
-		r.Failed = false
+		r.Status = ReceiptStatusSuccessful
-	case bytes.Equal(postStateOrStatus, receiptStatusFailed):
+	case bytes.Equal(postStateOrStatus, receiptStatusFailedRLP):
-		r.Failed = true
+		r.Status = ReceiptStatusFailed
 	case len(postStateOrStatus) == len(common.Hash{}):
 		r.PostState = postStateOrStatus
 	default:
@@ -114,19 +129,18 @@ func (r *Receipt) setStatus(postStateOrStatus []byte) error {
 
 func (r *Receipt) statusEncoding() []byte {
 	if len(r.PostState) == 0 {
-		if r.Failed {
+		if r.Status == ReceiptStatusFailed {
-			return receiptStatusFailed
+			return receiptStatusFailedRLP
-		} else {
-			return receiptStatusSuccessful
 		}
+		return receiptStatusSuccessfulRLP
 	}
 	return r.PostState
 }
 
 // String implements the Stringer interface.
 func (r *Receipt) String() string {
-	if r.PostState == nil {
+	if len(r.PostState) == 0 {
-		return fmt.Sprintf("receipt{failed=%t cgas=%v bloom=%x logs=%v}", r.Failed, r.CumulativeGasUsed, r.Bloom, r.Logs)
+		return fmt.Sprintf("receipt{status=%d cgas=%v bloom=%x logs=%v}", r.Status, r.CumulativeGasUsed, r.Bloom, r.Logs)
 	}
 	return fmt.Sprintf("receipt{med=%x cgas=%v bloom=%x logs=%v}", r.PostState, r.CumulativeGasUsed, r.Bloom, r.Logs)
 }

internal/ethapi/api.go

@@ -46,8 +46,6 @@ import (
 const (
 	defaultGas      = 90000
 	defaultGasPrice = 50 * params.Shannon
-	receiptStatusSuccessful = 1
-	receiptStatusFailed     = 0
 )
 
 // PublicEthereumAPI provides an API to access Ethereum related information.
@@ -1010,10 +1008,7 @@ func (s *PublicTransactionPoolAPI) GetTransactionReceipt(hash common.Hash) (map[
 	if len(receipt.PostState) > 0 {
 		fields["root"] = hexutil.Bytes(receipt.PostState)
 	} else {
-		fields["status"] = hexutil.Uint(receiptStatusSuccessful)
+		fields["status"] = hexutil.Uint(receipt.Status)
-		if receipt.Failed {
-			fields["status"] = hexutil.Uint(receiptStatusFailed)
-		}
 	}
 	if receipt.Logs == nil {
 		fields["logs"] = [][]*types.Log{}