/
attribute.go
54 lines (50 loc) · 1.73 KB
/
attribute.go
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/*
* Copyright (C) 2018 The ontology Authors
* This file is part of The ontology library.
*
* The ontology 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 ontology 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 ontology. If not, see <http://www.gnu.org/licenses/>.
*/
package neovm
import (
"github.com/ontio/ontology/core/types"
"github.com/ontio/ontology/errors"
vm "github.com/ontio/ontology/vm/neovm"
vmtypes "github.com/ontio/ontology/vm/neovm/types"
)
// AttributeGetUsage put attribute's usage to vm stack
func AttributeGetUsage(service *NeoVmService, engine *vm.Executor) error {
i, err := engine.EvalStack.PopAsInteropValue()
if err != nil {
return err
}
if a, ok := i.Data.(*types.TxAttribute); ok {
return engine.EvalStack.PushInt64(int64(a.Usage))
}
return errors.NewErr("[AttributeGetUsage] Wrong type!")
}
// AttributeGetData put attribute's data to vm stack
func AttributeGetData(service *NeoVmService, engine *vm.Executor) error {
i, err := engine.EvalStack.PopAsInteropValue()
if err != nil {
return err
}
if a, ok := i.Data.(*types.TxAttribute); ok {
val, err := vmtypes.VmValueFromBytes(a.Data)
if err != nil {
return err
}
return engine.EvalStack.Push(val)
}
return errors.NewErr("[AttributeGetData] Wrong type!")
}