286ec5df40
* cmd/evm, core/vm, internal/ethapi: Add 'err' to tracer interface CaptureEnd * cmd/evm: fix nullpointer when there is no error
72 lines
2.3 KiB
Go
72 lines
2.3 KiB
Go
// Copyright 2017 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 main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/math"
|
|
"github.com/ethereum/go-ethereum/core/vm"
|
|
)
|
|
|
|
type JSONLogger struct {
|
|
encoder *json.Encoder
|
|
cfg *vm.LogConfig
|
|
}
|
|
|
|
func NewJSONLogger(cfg *vm.LogConfig, writer io.Writer) *JSONLogger {
|
|
return &JSONLogger{json.NewEncoder(writer), cfg}
|
|
}
|
|
|
|
// CaptureState outputs state information on the logger.
|
|
func (l *JSONLogger) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
|
|
log := vm.StructLog{
|
|
Pc: pc,
|
|
Op: op,
|
|
Gas: gas + cost,
|
|
GasCost: cost,
|
|
MemorySize: memory.Len(),
|
|
Storage: nil,
|
|
Depth: depth,
|
|
Err: err,
|
|
}
|
|
if !l.cfg.DisableMemory {
|
|
log.Memory = memory.Data()
|
|
}
|
|
if !l.cfg.DisableStack {
|
|
log.Stack = stack.Data()
|
|
}
|
|
return l.encoder.Encode(log)
|
|
}
|
|
|
|
// CaptureEnd is triggered at end of execution.
|
|
func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
|
|
type endLog struct {
|
|
Output string `json:"output"`
|
|
GasUsed math.HexOrDecimal64 `json:"gasUsed"`
|
|
Time time.Duration `json:"time"`
|
|
Err string `json:"error,omitempty"`
|
|
}
|
|
if err != nil {
|
|
return l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, err.Error()})
|
|
}
|
|
return l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, ""})
|
|
}
|