<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">thanks, that's quite helpful. For those curious, the code responsible is in clang/lib/Format/Format.cpp, in Cleaner::analyze().</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jul 29, 2019 at 9:34 AM Haojian Wu <<a href="mailto:hokein@google.com">hokein@google.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I think the cleanup is done by cleanupAroundReplacements (clang-tidy formats the replacements before applying them).</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jul 29, 2019 at 3:14 PM Yitzhak Mandelbaum via cfe-dev <<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">If I create a removal FixItHint in clang-tidy to remove a function argument (that is, the `CharSourceRange` in the cal to FixItHint::CreateRemoval() spans a function-call argument), the associated comma for that argument (if any) is removed as well.  </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">For example, when removing the second argument of `foo(3, 4)`, clang-tidy (correctly) removes the comma to produce `foo(3)`.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I'd like to understand *where* that happens in the code.   I've looked through much of the code involved and searched the codebase for `tok::comma`, but was completely unable to discover the source of this modification.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">thanks,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">yitzhak</div></div>
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