[PATCH] D115903: [clang-format] Extra spaces surrounding arrow in templated member call in variable decl

[MyDeveloperDay via Phabricator via cfe-commits]

MyDeveloperDay created this revision.
MyDeveloperDay added reviewers: curdeius, HazardyKnusperkeks, owenpan, lichray.
MyDeveloperDay added projects: clang, clang-format.
MyDeveloperDay requested review of this revision.

https://github.com/llvm/llvm-project/issues/43196

Fixes #43196

-> is incorrectly interpreted as a TrailingReturnArrow if we've seen an auto

  auto p = new A;
  auto x = p -> foo<1>();


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D115903

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
@@ -6719,6 +6719,8 @@
 
   // Not trailing return types.
   verifyFormat("void f() { auto a = b->c(); }");
+  verifyFormat("auto a = p->foo();");
+  verifyFormat("int a = p->foo();");
 }
 
 TEST_F(FormatTest, DeductionGuides) {
Index: clang/lib/Format/TokenAnnotator.cpp
===================================================================
--- clang/lib/Format/TokenAnnotator.cpp
+++ clang/lib/Format/TokenAnnotator.cpp
@@ -1679,7 +1679,7 @@
       Current.setType(TT_LambdaArrow);
     } else if (Current.is(tok::arrow) && AutoFound && Line.MustBeDeclaration &&
                Current.NestingLevel == 0 &&
-               !Current.Previous->is(tok::kw_operator)) {
+               !Current.Previous->isOneOf(tok::kw_operator, tok::identifier)) {
       // not auto operator->() -> xxx;
       Current.setType(TT_TrailingReturnArrow);
     } else if (Current.is(tok::arrow) && Current.Previous &&


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