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tracewriter.go
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tracewriter.go
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// Copyright 2020 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package t8ntool
import (
"encoding/json"
"io"
"math/big"
"github.com/ws4charlie/eth-cc/common"
"github.com/ws4charlie/eth-cc/core/vm"
"github.com/ws4charlie/eth-cc/eth/tracers"
"github.com/ws4charlie/eth-cc/log"
)
// traceWriter is an vm.EVMLogger which also holds an inner logger/tracer.
// When the TxEnd event happens, the inner tracer result is written to the file, and
// the file is closed.
type traceWriter struct {
inner vm.EVMLogger
f io.WriteCloser
}
// Compile-time interface check
var _ = vm.EVMLogger((*traceWriter)(nil))
func (t *traceWriter) CaptureTxEnd(restGas uint64) {
t.inner.CaptureTxEnd(restGas)
defer t.f.Close()
if tracer, ok := t.inner.(tracers.Tracer); ok {
result, err := tracer.GetResult()
if err != nil {
log.Warn("Error in tracer", "err", err)
return
}
err = json.NewEncoder(t.f).Encode(result)
if err != nil {
log.Warn("Error writing tracer output", "err", err)
return
}
}
}
func (t *traceWriter) CaptureTxStart(gasLimit uint64) { t.inner.CaptureTxStart(gasLimit) }
func (t *traceWriter) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
t.inner.CaptureStart(env, from, to, create, input, gas, value)
}
func (t *traceWriter) CaptureEnd(output []byte, gasUsed uint64, err error) {
t.inner.CaptureEnd(output, gasUsed, err)
}
func (t *traceWriter) CaptureEnter(typ vm.OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int) {
t.inner.CaptureEnter(typ, from, to, input, gas, value)
}
func (t *traceWriter) CaptureExit(output []byte, gasUsed uint64, err error) {
t.inner.CaptureExit(output, gasUsed, err)
}
func (t *traceWriter) CaptureState(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) {
t.inner.CaptureState(pc, op, gas, cost, scope, rData, depth, err)
}
func (t *traceWriter) CaptureFault(pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) {
t.inner.CaptureFault(pc, op, gas, cost, scope, depth, err)
}