c7554e96aa
* fix typo * Added tracers package to debug API * Add GetTransactionByHash function to backend package * first version * traceTransaction first version * clean PR * revert debug changes * Update proto/ethermint/evm/v1/query.proto Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * remove unnecesary panic * remove internal debug api * trace transaction javascript tracer * add support for custom logConfig * added comment * traceTransactions tests * fix linter * remove unused * add comments to traceConfig * update dependencies * updated endpoints md * Apply suggestions from code review * Update x/evm/keeper/grpc_query.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update x/evm/keeper/grpc_query.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
package types
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import (
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"fmt"
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"math/big"
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"os"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/params"
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)
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const (
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TracerAccessList = "access_list"
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TracerJSON = "json"
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TracerStruct = "struct"
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TracerMarkdown = "markdown"
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)
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// NewTracer creates a new Logger tracer to collect execution traces from an
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// EVM transaction.
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func NewTracer(tracer string, msg core.Message, cfg *params.ChainConfig, height int64, debug bool) vm.Tracer {
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// TODO: enable additional log configuration
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logCfg := &vm.LogConfig{
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Debug: debug,
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}
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switch tracer {
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case TracerAccessList:
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precompiles := vm.ActivePrecompiles(cfg.Rules(big.NewInt(height)))
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return vm.NewAccessListTracer(msg.AccessList(), msg.From(), *msg.To(), precompiles)
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case TracerJSON:
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return vm.NewJSONLogger(logCfg, os.Stderr)
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case TracerMarkdown:
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return vm.NewMarkdownLogger(logCfg, os.Stdout) // TODO: Stderr ?
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case TracerStruct:
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return vm.NewStructLogger(logCfg)
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default:
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return nil
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}
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}
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// ExecutionResult groups all structured logs emitted by the EVM
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// while replaying a transaction in debug mode as well as transaction
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// execution status, the amount of gas used and the return value
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type ExecutionResult struct {
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Gas uint64 `json:"gas"`
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Failed bool `json:"failed"`
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ReturnValue string `json:"returnValue"`
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StructLogs []StructLogRes `json:"structLogs"`
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}
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// StructLogRes stores a structured log emitted by the EVM while replaying a
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// transaction in debug mode. Taken from go-ethereum
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type StructLogRes struct {
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Pc uint64 `json:"pc"`
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Op string `json:"op"`
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Gas uint64 `json:"gas"`
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GasCost uint64 `json:"gasCost"`
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Depth int `json:"depth"`
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Error string `json:"error,omitempty"`
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Stack *[]string `json:"stack,omitempty"`
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Memory *[]string `json:"memory,omitempty"`
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Storage *map[string]string `json:"storage,omitempty"`
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}
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// FormatLogs formats EVM returned structured logs for json output
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func FormatLogs(logs []vm.StructLog) []StructLogRes {
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formatted := make([]StructLogRes, len(logs))
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for index, trace := range logs {
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formatted[index] = StructLogRes{
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Pc: trace.Pc,
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Op: trace.Op.String(),
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Gas: trace.Gas,
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GasCost: trace.GasCost,
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Depth: trace.Depth,
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Error: trace.ErrorString(),
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}
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if trace.Stack != nil {
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stack := make([]string, len(trace.Stack))
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for i, stackValue := range trace.Stack {
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stack[i] = fmt.Sprintf("%x", stackValue)
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}
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formatted[index].Stack = &stack
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}
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if trace.Memory != nil {
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memory := make([]string, 0, (len(trace.Memory)+31)/32)
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for i := 0; i+32 <= len(trace.Memory); i += 32 {
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memory = append(memory, fmt.Sprintf("%x", trace.Memory[i:i+32]))
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}
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formatted[index].Memory = &memory
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}
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if trace.Storage != nil {
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storage := make(map[string]string)
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for i, storageValue := range trace.Storage {
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storage[fmt.Sprintf("%x", i)] = fmt.Sprintf("%x", storageValue)
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}
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formatted[index].Storage = &storage
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}
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}
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return formatted
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}
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