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array_value.go
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array_value.go
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/*
* Copyright (C) 2019 The TesraSupernet Authors
* This file is part of The TesraSupernet library.
*
* The TesraSupernet 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 TesraSupernet 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 TesraSupernet. If not, see <http://www.gnu.org/licenses/>.
*/
package types
import (
"github.com/TesraSupernet/Tesra/vm/neovm/constants"
"github.com/TesraSupernet/Tesra/vm/neovm/errors"
)
type ArrayValue struct {
Data []VmValue
}
const initArraySize = 16
func NewArrayValue() *ArrayValue {
return &ArrayValue{Data: make([]VmValue, 0, initArraySize)}
}
func (self *ArrayValue) Append(item VmValue) error {
if len(self.Data) >= constants.MAX_ARRAY_SIZE {
return errors.ERR_OVER_MAX_ARRAY_SIZE
}
self.Data = append(self.Data, item)
return nil
}
func (self *ArrayValue) Len() int64 {
return int64(len(self.Data))
}
func (self *ArrayValue) RemoveAt(index int64) error {
if index < 0 || index >= self.Len() {
return errors.ERR_INDEX_OUT_OF_BOUND
}
self.Data = append(self.Data[:index], self.Data[index+1:]...)
return nil
}