contract/nft.go

@@ -8,6 +8,9 @@ type NFT interface {
 	// You can execute your raw request.
 	Command() Command
 
+	// ExecuteBatchAfterCheck executes a batch of commands after checking the validity of the batch.
+	ExecuteBatchAfterCheck(batch Batch) error
+
 	// ExecuteBatch executes a batch of commands.
 	ExecuteBatch(batch Batch) error
 

nft.go

@@ -104,6 +104,13 @@ func (n *nft) Command() contract.Command {
 	return n.command
 }
 
+func (n *nft) ExecuteBatchAfterCheck(batch contract.Batch) error {
+	if err := batch.Check(n.command); err != nil {
+		return err
+	}
+	return n.command.Run(batch.Args()...)
+}
+
 func (n *nft) ExecuteBatch(batch contract.Batch) error {
 	return n.command.Run(batch.Args()...)
 }