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eth: fix accidental nil panic on nil errors

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This commit is contained in:
Péter Szilágyi 2016-03-31 18:15:38 +03:00
parent 6c670eff01
commit 4326061e35
1 changed files with 13 additions and 4 deletions
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17
eth/api.go
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@ -1531,7 +1531,7 @@ func (api *PrivateDebugAPI) TraceBlock(blockRlp []byte, config vm.Config) BlockT
return BlockTraceResult{
Validated: validated,
StructLogs: formatLogs(logs),
Error: err.Error(),
Error: formatError(err),
}
}
@ -1557,7 +1557,7 @@ func (api *PrivateDebugAPI) TraceBlockByNumber(number uint64, config vm.Config)
return BlockTraceResult{
Validated: validated,
StructLogs: formatLogs(logs),
Error: err.Error(),
Error: formatError(err),
}
}
@ -1573,7 +1573,7 @@ func (api *PrivateDebugAPI) TraceBlockByHash(hash common.Hash, config vm.Config)
return BlockTraceResult{
Validated: validated,
StructLogs: formatLogs(logs),
Error: err.Error(),
Error: formatError(err),
}
}
@ -1666,7 +1666,7 @@ func formatLogs(structLogs []vm.StructLog) []structLogRes {
Gas: trace.Gas,
GasCost: trace.GasCost,
Depth: trace.Depth,
Error: trace.Err.Error(),
Error: formatError(trace.Err),
Stack: make([]string, len(trace.Stack)),
Storage: make(map[string]string),
}
@ -1686,6 +1686,15 @@ func formatLogs(structLogs []vm.StructLog) []structLogRes {
return formattedStructLogs
}
// formatError formats a Go error into either an empty string or the data content
// of the error itself.
func formatError(err error) string {
if err == nil {
return ""
}
return err.Error()
}
// TraceTransaction returns the structured logs created during the execution of EVM
// and returns them as a JSON object.
func (s *PrivateDebugAPI) TraceTransaction(txHash common.Hash, logger vm.LogConfig) (*ExecutionResult, error) {