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block.go
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block.go
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/*
* Copyright (C) 2018 The DNA Authors
* This file is part of The DNA library.
*
* The DNA is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The DNA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with The DNA. If not, see <http://www.gnu.org/licenses/>.
*/
package neovm
import (
"github.com/dnaproject2/DNA/core/types"
vm "github.com/dnaproject2/DNA/vm/neovm"
vmtypes "github.com/dnaproject2/DNA/vm/neovm/types"
)
// BlockGetTransactionCount put block's transactions count to vm stack
func BlockGetTransactionCount(service *NeoVmService, engine *vm.ExecutionEngine) error {
i, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
vm.PushData(engine, len(i.(*types.Block).Transactions))
return nil
}
// BlockGetTransactions put block's transactions to vm stack
func BlockGetTransactions(service *NeoVmService, engine *vm.ExecutionEngine) error {
i, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
transactions := i.(*types.Block).Transactions
transactionList := make([]vmtypes.StackItems, 0)
for _, v := range transactions {
transactionList = append(transactionList, vmtypes.NewInteropInterface(v))
}
vm.PushData(engine, transactionList)
return nil
}
// BlockGetTransaction put block's transaction to vm stack
func BlockGetTransaction(service *NeoVmService, engine *vm.ExecutionEngine) error {
i, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
index, err := vm.PopInt(engine)
if err != nil {
return err
}
vm.PushData(engine, i.(*types.Block).Transactions[index])
return nil
}