internal/ethapi: remove error return value of RPCMarshalBlock ethereum#27449

Author: gzliudan

eth/api_debug.go

@@ -90,7 +90,6 @@ type BadBlockArgs struct {
 // and returns them as a JSON list of block-hashes
 func (api *DebugAPI) GetBadBlocks(ctx context.Context) ([]*BadBlockArgs, error) {
 	var (
-		err     error
 		blocks  = rawdb.ReadAllBadBlocks(api.eth.chainDb)
 		results = make([]*BadBlockArgs, 0, len(blocks))
 	)
@@ -104,9 +103,7 @@ func (api *DebugAPI) GetBadBlocks(ctx context.Context) ([]*BadBlockArgs, error)
 		} else {
 			blockRlp = fmt.Sprintf("%#x", rlpBytes)
 		}
-		if blockJSON, err = ethapi.RPCMarshalBlock(block, true, true, api.eth.ApiBackend.ChainConfig()); err != nil {
-			blockJSON = map[string]interface{}{"error": err.Error()}
-		}
+		blockJSON = ethapi.RPCMarshalBlock(block, true, true, api.eth.ApiBackend.ChainConfig())
 		results = append(results, &BadBlockArgs{
 			Hash:  block.Hash(),
 			RLP:   blockRlp,

internal/ethapi/api.go

@@ -1443,7 +1443,7 @@ func RPCMarshalHeader(head *types.Header) map[string]interface{} {
 // RPCMarshalBlock converts the given block to the RPC output which depends on fullTx. If inclTx is true transactions are
 // returned. When fullTx is true the returned block contains full transaction details, otherwise it will only contain
 // transaction hashes.
-func RPCMarshalBlock(block *types.Block, inclTx bool, fullTx bool, config *params.ChainConfig) (map[string]interface{}, error) {
+func RPCMarshalBlock(block *types.Block, inclTx bool, fullTx bool, config *params.ChainConfig) map[string]interface{} {
 	fields := RPCMarshalHeader(block.Header())
 	fields["size"] = hexutil.Uint64(block.Size())
 
@@ -1469,18 +1469,17 @@ func RPCMarshalBlock(block *types.Block, inclTx bool, fullTx bool, config *param
 		uncleHashes[i] = uncle.Hash()
 	}
 	fields["uncles"] = uncleHashes
-	return fields, nil
+	return fields
 }
 
 // rpcMarshalBlock uses the generalized output filler, then adds the total difficulty field, which requires
 // a `BlockChainAPI`.
 func (s *BlockChainAPI) rpcMarshalBlock(b *types.Block, inclTx bool, fullTx bool) (map[string]interface{}, error) {
-	fields, err := RPCMarshalBlock(b, inclTx, fullTx, s.b.ChainConfig())
-	if err != nil {
-		return nil, err
+	fields := RPCMarshalBlock(b, inclTx, fullTx, s.b.ChainConfig())
+	if inclTx {
+		fields["totalDifficulty"] = (*hexutil.Big)(s.b.GetTd(context.Background(), b.Hash()))
 	}
-	fields["totalDifficulty"] = (*hexutil.Big)(s.b.GetTd(context.Background(), b.Hash()))
-	return fields, err
+	return fields, nil
 }
 
 // findNearestSignedBlock finds the nearest checkpoint from input block

internal/ethapi/api_test.go

@@ -110,11 +110,7 @@ func TestRPCMarshalBlock(t *testing.T) {
 	}
 
 	for i, tc := range testSuite {
-		resp, err := RPCMarshalBlock(block, tc.inclTx, tc.fullTx, params.MainnetChainConfig)
-		if err != nil {
-			t.Errorf("test %d: got error %v", i, err)
-			continue
-		}
+		resp := RPCMarshalBlock(block, tc.inclTx, tc.fullTx, params.MainnetChainConfig)
 		out, err := json.Marshal(resp)
 		if err != nil {
 			t.Errorf("test %d: json marshal error: %v", i, err)