<div dir="ltr"><div class="gmail_default" style>I've made a very simple FileCheck test, see r172407.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jan 14, 2013 at 2:02 PM, Manuel Klimek <span dir="ltr"><<a href="mailto:klimek@google.com" target="_blank">klimek@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="im"><div class="gmail_default">On Mon, Jan 14, 2013 at 1:31 PM, Alexander Kornienko <span dir="ltr"><<a href="mailto:alexfh@google.com" target="_blank">alexfh@google.com</a>></span> wrote:<br>
</div></div><div class="gmail_extra">
<div class="gmail_quote"><div class="im"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>On Mon, Jan 14, 2013 at 12:48 PM, Manuel Klimek <span dir="ltr"><<a href="mailto:klimek@google.com" target="_blank">klimek@google.com</a>></span> wrote:<br>
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<div class="gmail_quote"><div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Can't we put those tests into clang-tools-extra? After all, the diagnostic approach seems to be bound much more to the tool than the library...</div>
</div></blockquote><div><br></div></div><div>Yes, I can, if you think this is the most reasonable way to do it. But the only diagnostic we have to date is implemented in the library, and is tool-independent. So I'd better put tests closer to the library, rather than the tool.</div>
</div></div></div></blockquote><div><br></div></div><div>Let me explain my reasoning a little more:</div><div>To me, clang-format is a tool that tries to format as much as possible. If we find an error in a place where we cannot format, our errors are going to be useless compared to errors a real compiler would output. Thus, I don't really care that much about our errors. To me they're more a help in debugging, and will basically completely lose their value once we don't fail parsing valid code any more.</div>
<div>I also think that over time we'll take out more and more errors, as we're finding better heuristics on how to format broken code.</div><div><br></div><div>So, in conclusion, I don't find our diagnostics important, so if we have a tests that verifies that diagnostics get output at all (which would be a test that needs to live with with the tool, because otherwise we can always regress the tool), and tests for all the cases we want to actually format (thus knowing they don't have errors), I think that I honestly don't care enough about the rest of the cases.</div>
<div><br></div><div>So, from my side, select either approach and check it in. We can always revisit this later. I'd personally prefer a very simple FileCheck in the extra tools repo.</div><div><br></div>
<div>Cheers,</div><div>/Manuel</div><div class="im"><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">
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<div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div class="gmail_extra"><div class="gmail_quote">On Mon, Jan 14, 2013 at 12:41 PM, Alexander Kornienko <span dir="ltr"><<a href="mailto:alexfh@google.com" target="_blank">alexfh@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div><div>On Mon, Jan 14, 2013 at 12:13 PM, Alexander Kornienko <span dir="ltr"><<a href="mailto:alexfh@google.com" target="_blank">alexfh@google.com</a>></span> wrote:<br>
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</div><div class="gmail_extra"><div class="gmail_quote"><div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">In this case I'd prefer to use VerifyDiagnosticConsumer, which is an implementation of clang's "-verify" option. Any concerns?</div>
</blockquote><div><br></div></div><div>I found a little problem with both FileCheck and "-verify" approaches: they both require a stand-alone binary, which it resides in clang-tools-extra.</div><div>
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</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="gmail_extra"><div><div><br><br><div class="gmail_quote">
On Mon, Jan 14, 2013 at 11:26 AM, Daniel Jasper <span dir="ltr"><<a href="mailto:djasper@google.com" target="_blank">djasper@google.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>+1, seems like the better approach.</div></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jan 14, 2013 at 11:18 AM, Manuel Klimek <span dir="ltr"><<a href="mailto:klimek@google.com" target="_blank">klimek@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
This still seems like an awful lot of code for checking 2(!) diagnostics. I'd actually vote for using FileCheck.<br>
<br>
<a href="http://llvm-reviews.chandlerc.com/D290" target="_blank">http://llvm-reviews.chandlerc.com/D290</a><br>
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