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cmd/evm, core/vm, internal/ethapi: Show error when exiting (#14985)

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* cmd/evm, core/vm, internal/ethapi: Add 'err' to tracer interface CaptureEnd

* cmd/evm: fix nullpointer when there is no error
This commit is contained in:
Martin Holst Swende 2017-08-23 13:37:18 +02:00 committed by Péter Szilágyi
parent f7e39a7724
commit 286ec5df40
4 changed files with 16 additions and 9 deletions
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8
cmd/evm/json_logger.go
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@ -57,11 +57,15 @@ func (l *JSONLogger) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cos
}
// CaptureEnd is triggered at end of execution.
func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration) error {
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"`
}
return l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t})
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, ""})
}

6
cmd/evm/runner.go
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@ -234,13 +234,13 @@ Gas used: %d
`, execTime, mem.HeapObjects, mem.Alloc, mem.TotalAlloc, mem.NumGC, initialGas-leftOverGas)
}
if tracer != nil {
tracer.CaptureEnd(ret, initialGas-leftOverGas, execTime)
tracer.CaptureEnd(ret, initialGas-leftOverGas, execTime, err)
} else {
fmt.Printf("0x%x\n", ret)
}
if err != nil {
fmt.Printf(" error: %v\n", err)
}
}
return nil
}

7
core/vm/logger.go
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@ -86,7 +86,7 @@ func (s *StructLog) OpName() string {
// if you need to retain them beyond the current call.
type Tracer interface {
CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error
CaptureEnd(output []byte, gasUsed uint64, t time.Duration) error
CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error
}
// StructLogger is an EVM state logger and implements Tracer.
@ -183,8 +183,11 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui
return nil
}
func (l *StructLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration) error {
func (l *StructLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
fmt.Printf("0x%x", output)
if err != nil {
fmt.Printf(" error: %v\n", err)
}
return nil
}

2
internal/ethapi/tracer.go
View File

@ -346,7 +346,7 @@ func (jst *JavascriptTracer) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode,
}
// CaptureEnd is called after the call finishes
func (jst *JavascriptTracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration) error {
func (jst *JavascriptTracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
//TODO! @Arachnid please figure out of there's anything we can use this method for
return nil
}