[cfe-dev] Question about Clang Rewriter and white space

[Jonas Toth via cfe-dev]

Hi Andrew,

white space is a job for clang-format. You can do your rewriting and apply
it afterwards to get nice looking code.

Am 13.12.2017 6:32 vorm. schrieb "Andrew Gozillon via cfe-dev" <
cfe-dev at lists.llvm.org>:

> Hi,
>
>
> I am currently playing around with a Clang Libtool and I was wondering if
> there was a way to make the Clang Rewriter remove white space or if there
> is another utility class that can do this? For example I have an arbitrary
> set of template parameters:
>
>
> template <typename X, typename Y>
>
>
> And I wish to remove the first template parameter using the Rewriter in
> this case to modify the source code. To do this I remove the typename X and
> the comma. However, the result ends up like:
>
>
> template < typename Y>
>
>
> Which contains some unsightly white space! This persists even if I
> increase the SourceRange to just before the t of typename Y. So it seems to
> be ignoring the space.
>
>
> So in essence is there a way to make the Rewriter consider white space for
> removal or is there an alternative tool or method (like using a function
> of Clangs AST) to avoid this? At the moment I work around this by injecting
> an arbitrary character in the empty space and then I delete it. Which
> works, but doesn't seem like the ideal solution.
>
>
> Sorry if this is a silly question and thank you very much for everyone's
> time.
>
>
> Best Regards,
>
> Andrew
>
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