package vm import ( "fmt" "os" "unicode" "github.com/ethereum/go-ethereum/common" ) func StdErrFormat(logs []StructLog) { fmt.Fprintf(os.Stderr, "VM STAT %d OPs\n", len(logs)) for _, log := range logs { fmt.Fprintf(os.Stderr, "PC %08d: %s GAS: %v COST: %v", log.Pc, log.Op, log.Gas, log.GasCost) if log.Err != nil { fmt.Fprintf(os.Stderr, " ERROR: %v", log.Err) } fmt.Fprintf(os.Stderr, "\n") fmt.Fprintln(os.Stderr, "STACK =", len(log.Stack)) for i := len(log.Stack) - 1; i >= 0; i-- { fmt.Fprintf(os.Stderr, "%04d: %x\n", len(log.Stack)-i-1, common.LeftPadBytes(log.Stack[i].Bytes(), 32)) } const maxMem = 10 addr := 0 fmt.Fprintln(os.Stderr, "MEM =", len(log.Memory)) for i := 0; i+16 <= len(log.Memory) && addr < maxMem; i += 16 { data := log.Memory[i : i+16] str := fmt.Sprintf("%04d: % x ", addr*16, data) for _, r := range data { if r == 0 { str += "." } else if unicode.IsPrint(rune(r)) { str += fmt.Sprintf("%s", string(r)) } else { str += "?" } } addr++ fmt.Fprintln(os.Stderr, str) } fmt.Fprintln(os.Stderr, "STORAGE =", len(log.Storage)) for h, item := range log.Storage { fmt.Fprintf(os.Stderr, "%x: %x\n", h, common.LeftPadBytes(item, 32)) } fmt.Fprintln(os.Stderr) } }