polyakov.alex added inline comments.
================
Comment at: tools/lldb-mi/MICmdCmdExec.cpp:248
}
- } else {
- // ToDo: Re-evaluate if this is required when application near finished as
- // this is parsing LLDB error message
- // which seems a hack and is code brittle
- const char *pLldbErr = m_lldbResult.GetError();
- const CMIUtilString strLldbMsg(CMIUtilString(pLldbErr).StripCREndOfLine());
- if (strLldbMsg == "error: Process must be launched.") {
- CMIDriver::Instance().SetExitApplicationFlag(true);
- }
- }
+ } else m_lldbResult.SetError(error.GetCString());
----------------
clayborg wrote:
> clayborg wrote:
> > clayborg wrote:
> > > polyakov.alex wrote:
> > > > clayborg wrote:
> > > > > An error can claim to fail but not have an error string set. It might
> > > > > be nice to have a helper function that checks to make sure there is
> > > > > an error string on error cases and if there is no error string when
> > > > > error.Success() is false or error.Fail() is true, then set the error
> > > > > string to "unknown error".
> > > > This functionality might be useful in all lldb-mi commands. So do you
> > > > know where to place this function? Maybe inside SBError class?
> > > I would put it somewhere in lldb-mi in a static function that is
> > > something like:
> > > ```
> > > static void SetErrorString(lldb::SBError &error, T &lldbResult) {
> > > const char *error_cstr = error.GetCString();
> > > if (error_cstr)
> > > lldbResult.SetError(error.GetCString());
> > > else
> > > lldbResult.SetError("unknown error");
> > > }
> > > ```
> > > Where the T is the type of m_lldbResult.
> > Actually, are we using m_lldbResult now? I didn't realize its type was
> > lldb::SBCommandReturnObject. That was only needed if we were calling:
> > ```
> > rSessionInfo.GetDebugger().GetCommandInterpreter().HandleCommand(pCmd,
> > m_lldbResult);
> > ```
> >
> > So we can get rid of all "lldb::SBCommandReturnObject m_lldbResult" member
> > variables in any lldb-mi functions where we switch to using the API.
> Since we can get rid of m_lldbResult, this should be:
>
> ```
> } else return MIstatus::failure;
> ```
It should be:
```
else {
SetError(CMIUtilString::Format(..., error.GetCString()));
return MIstatus::failure;
}
```
So, we anyway need a C-style error string.
https://reviews.llvm.org/D47415
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