[PATCH] D137474: [clang-format] Defer formatting of operator< to honor paren spacing

[Emilia Dreamer via Phabricator via cfe-commits]

rymiel created this revision.
rymiel added reviewers: HazardyKnusperkeks, owenpan, MyDeveloperDay.
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I'm not exactly sure what the intent of that section of
`spaceRequiredBetween` is doing, it seems to handle templates and <<,
but the part which adds spaces before parens is way later, as part
of `spaceRequiredBeforeParens`.

Fixes https://github.com/llvm/llvm-project/issues/58821


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D137474

Files:
  clang/lib/Format/TokenAnnotator.cpp
  clang/unittests/Format/FormatTest.cpp


Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -15472,6 +15472,8 @@
   Space.SpaceBeforeParens = FormatStyle::SBPO_Always;
 
   verifyFormat("int f ();", Space);
+  verifyFormat("bool operator< ();", Space);
+  verifyFormat("bool operator> ();", Space);
   verifyFormat("void f (int a, T b) {\n"
                "  while (true)\n"
                "    continue;\n"
Index: clang/lib/Format/TokenAnnotator.cpp
===================================================================
--- clang/lib/Format/TokenAnnotator.cpp
+++ clang/lib/Format/TokenAnnotator.cpp
@@ -3426,7 +3426,9 @@
         return false;
       return !Style.Cpp11BracedListStyle;
     }
-    return false;
+    // Don't attempt to format operator<(), as it is handled later.
+    if (Right.isNot(TT_OverloadedOperatorLParen))
+      return false;
   }
   if (Right.is(tok::ellipsis)) {
     return Left.Tok.isLiteral() || (Left.is(tok::identifier) && Left.Previous &&


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