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// Copyright (C) 2019-2021 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package ledgercore
import (
"fmt"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/data/transactions"
)
// TransactionInLedgerError is returned when a transaction cannot be added because it has already been done
type TransactionInLedgerError struct {
Txid transactions.Txid
}
// Error satisfies builtin interface `error`
func (tile TransactionInLedgerError) Error() string {
return fmt.Sprintf("transaction already in ledger: %v", tile.Txid)
}
// LeaseInLedgerError is returned when a transaction cannot be added because it has a lease that already being used in the relavant rounds
type LeaseInLedgerError struct {
txid transactions.Txid
lease Txlease
}
// MakeLeaseInLedgerError builds a LeaseInLedgerError object
func MakeLeaseInLedgerError(txid transactions.Txid, lease Txlease) *LeaseInLedgerError {
return &LeaseInLedgerError{
txid: txid,
lease: lease,
}
}
// Error implements the error interface for the LeaseInLedgerError stuct
func (lile *LeaseInLedgerError) Error() string {
// format the lease as address.
addr := basics.Address(lile.lease.Lease)
return fmt.Sprintf("transaction %v using an overlapping lease %s", lile.txid, addr.String())
}
// BlockInLedgerError is returned when a block cannot be added because it has already been done
type BlockInLedgerError struct {
LastRound basics.Round
NextRound basics.Round
}
// Error satisfies builtin interface `error`
func (bile BlockInLedgerError) Error() string {
return fmt.Sprintf("block number already in ledger: block %d < next Round %d", bile.LastRound, bile.NextRound)
}
// ErrNoEntry is used to indicate that a block is not present in the ledger.
type ErrNoEntry struct {
Round basics.Round
Latest basics.Round
Committed basics.Round
}
// Error satisfies builtin interface `error`
func (err ErrNoEntry) Error() string {
return fmt.Sprintf("ledger does not have entry %d (latest %d, committed %d)", err.Round, err.Latest, err.Committed)
}
// LogicEvalError indicates TEAL evaluation failure
type LogicEvalError struct {
Err error
Details string
}
// Error satisfies builtin interface `error`
func (err LogicEvalError) Error() string {
msg := fmt.Sprintf("logic eval error: %v", err.Err)
if len(err.Details) > 0 {
msg = fmt.Sprintf("%s. Details: %s", msg, err.Details)
}
return msg
}
// ErrNonSequentialBlockEval provides feedback when the evaluator cannot be created for
// stale/future rounds.
type ErrNonSequentialBlockEval struct {
EvaluatorRound basics.Round // EvaluatorRound is the round the evaluator was created for
LatestRound basics.Round // LatestRound is the latest round available on disk
}
// Error satisfies builtin interface `error`
func (err ErrNonSequentialBlockEval) Error() string {
return fmt.Sprintf("block evaluation for round %d requires sequential evaluation while the latest round is %d", err.EvaluatorRound, err.LatestRound)
}
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