cmd/evm, core/vm, eth: implement api methods to do stdjson dump to local filesystem

cmd/evm/json_logger.go

@@ -1,84 +0,0 @@
-// Copyright 2017 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 main
-
-import (
-	"encoding/json"
-	"io"
-	"math/big"
-	"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
-}
-
-// NewJSONLogger creates a new EVM tracer that prints execution steps as JSON objects
-// into the provided stream.
-func NewJSONLogger(cfg *vm.LogConfig, writer io.Writer) *JSONLogger {
-	return &JSONLogger{json.NewEncoder(writer), cfg}
-}
-
-func (l *JSONLogger) CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error {
-	return nil
-}
-
-// 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,
-		GasCost:       cost,
-		MemorySize:    memory.Len(),
-		Storage:       nil,
-		Depth:         depth,
-		RefundCounter: env.StateDB.GetRefund(),
-		Err:           err,
-	}
-	if !l.cfg.DisableMemory {
-		log.Memory = memory.Data()
-	}
-	if !l.cfg.DisableStack {
-		log.Stack = stack.Data()
-	}
-	return l.encoder.Encode(log)
-}
-
-// CaptureFault outputs state information on the logger.
-func (l *JSONLogger) CaptureFault(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 {
-	return nil
-}
-
-// 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, ""})
-}

cmd/evm/runner.go

@@ -89,7 +89,7 @@ func runCmd(ctx *cli.Context) error {
 		genesisConfig *core.Genesis
 	)
 	if ctx.GlobalBool(MachineFlag.Name) {
-		tracer = NewJSONLogger(logconfig, os.Stdout)
+		tracer = vm.NewJSONLogger(logconfig, os.Stdout)
 	} else if ctx.GlobalBool(DebugFlag.Name) {
 		debugLogger = vm.NewStructLogger(logconfig)
 		tracer = debugLogger

cmd/evm/staterunner.go

@@ -68,7 +68,7 @@ func stateTestCmd(ctx *cli.Context) error {
 	)
 	switch {
 	case ctx.GlobalBool(MachineFlag.Name):
-		tracer = NewJSONLogger(config, os.Stderr)
+		tracer = vm.NewJSONLogger(config, os.Stderr)
 
 	case ctx.GlobalBool(DebugFlag.Name):
 		debugger = vm.NewStructLogger(config)