[cfe-dev] FrontendAction output

[Mike Miller]

Whoops, just realized I was replying to the wrong email :). The solution to
_THIS_ problem is to modify CodeGenAction to have a setOutputStream method,
and to modify CodeGenAction::CreateASTConsumer to construct a BackendAction
corresponding to the stream specified by the user(the default, if the user
doesn't specify a stream, is the same: a new output file is created).

After this modification, you can just create a stream pointing to a buffer,
and set the CodeGenAction to point to that stream.

Not sure that it's the most elegant solution, but it works.

Hope that helps,
Mike

On Mon, May 10, 2010 at 1:49 PM, Mike Miller <michael.g.miller at gmail.com>wrote:

> Some folks on #llvm helped me with this - the solution is to create a
> virtual file using FileManager::getVirtualFile, and populate it with the
> buffer's contents using SourceManager::overrideFileContents, then pass the
> virtual file to the FrontendAction.
>
> Hope that helps,
> Mike
>
> On Fri, May 7, 2010 at 3:30 PM, Mike Miller <michael.g.miller at gmail.com>wrote:
>
>> Hi,
>>
>> I want to have the output of a FrontendAction(specifically an
>> EmitObjAction) piped into a MemoryBuffer, instead of a file. What's the most
>> straightforward way to do this?
>>
>> Thanks,
>> Mike
>>
>
>
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