Official Go implementation of the Ethereum protocol
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go-ethereum/eth/tracers/live/noop.go

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3.4 KiB

// Copyright 2024 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library 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 go-ethereum library 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package live
import (
"encoding/json"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth/tracers"
"github.com/ethereum/go-ethereum/params"
)
func init() {
tracers.LiveDirectory.Register("noop", newNoopTracer)
}
// noop is a no-op live tracer. It's there to
// catch changes in the tracing interface, as well as
// for testing live tracing performance. Can be removed
// as soon as we have a real live tracer.
type noop struct{}
func newNoopTracer(_ json.RawMessage) (*tracing.Hooks, error) {
t := &noop{}
return &tracing.Hooks{
OnTxStart: t.OnTxStart,
OnTxEnd: t.OnTxEnd,
OnEnter: t.OnEnter,
OnExit: t.OnExit,
OnOpcode: t.OnOpcode,
OnFault: t.OnFault,
OnGasChange: t.OnGasChange,
OnBlockchainInit: t.OnBlockchainInit,
OnBlockStart: t.OnBlockStart,
OnBlockEnd: t.OnBlockEnd,
OnSkippedBlock: t.OnSkippedBlock,
OnGenesisBlock: t.OnGenesisBlock,
OnBalanceChange: t.OnBalanceChange,
OnNonceChange: t.OnNonceChange,
OnCodeChange: t.OnCodeChange,
OnStorageChange: t.OnStorageChange,
OnLog: t.OnLog,
}, nil
}
func (t *noop) OnOpcode(pc uint64, op byte, gas, cost uint64, scope tracing.OpContext, rData []byte, depth int, err error) {
}
func (t *noop) OnFault(pc uint64, op byte, gas, cost uint64, _ tracing.OpContext, depth int, err error) {
}
func (t *noop) OnEnter(depth int, typ byte, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {
}
func (t *noop) OnExit(depth int, output []byte, gasUsed uint64, err error, reverted bool) {
}
func (t *noop) OnTxStart(vm *tracing.VMContext, tx *types.Transaction, from common.Address) {
}
func (t *noop) OnTxEnd(receipt *types.Receipt, err error) {
}
func (t *noop) OnBlockStart(ev tracing.BlockEvent) {
}
func (t *noop) OnBlockEnd(err error) {
}
func (t *noop) OnSkippedBlock(ev tracing.BlockEvent) {}
func (t *noop) OnBlockchainInit(chainConfig *params.ChainConfig) {
}
func (t *noop) OnGenesisBlock(b *types.Block, alloc types.GenesisAlloc) {
}
func (t *noop) OnBalanceChange(a common.Address, prev, new *big.Int, reason tracing.BalanceChangeReason) {
}
func (t *noop) OnNonceChange(a common.Address, prev, new uint64) {
}
func (t *noop) OnCodeChange(a common.Address, prevCodeHash common.Hash, prev []byte, codeHash common.Hash, code []byte) {
}
func (t *noop) OnStorageChange(a common.Address, k, prev, new common.Hash) {
}
func (t *noop) OnLog(l *types.Log) {
}
func (t *noop) OnGasChange(old, new uint64, reason tracing.GasChangeReason) {
}