--- /dev/null
+package types
+
+import (
+ "github.com/bytom/protocol/bc"
+)
+
+// SpendInput satisfies the TypedInput interface and represents a spend transaction.
+type SpendInput struct {
+ SpendCommitmentSuffix []byte // The unconsumed suffix of the output commitment
+ Arguments [][]byte // Witness
+ SpendCommitment
+}
+
+// NewSpendInput create a new SpendInput struct.
+func NewSpendInput(arguments [][]byte, sourceID bc.Hash, assetID bc.AssetID, amount, sourcePos uint64, controlProgram []byte) *TxInput {
+ sc := SpendCommitment{
+ AssetAmount: bc.AssetAmount{
+ AssetId: &assetID,
+ Amount: amount,
+ },
+ SourceID: sourceID,
+ SourcePosition: sourcePos,
+ VMVersion: 1,
+ ControlProgram: controlProgram,
+ }
+ return &TxInput{
+ AssetVersion: 1,
+ TypedInput: &SpendInput{
+ SpendCommitment: sc,
+ Arguments: arguments,
+ },
+ }
+}
+
+// InputType is the interface function for return the input type.
+func (si *SpendInput) InputType() uint8 { return SpendInputType }